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Double Recorder and Go-Devil Service Manual
REFERENCE
REFERENCE DESCRIPTION
This document contains valuable proprietary, confidential, and/or trade secret information (collectively "Proprietary Information") owned by National Oilwell Varco or its subsidiaries or affiliates (collectively “NOV”). Irreparable harm to NOV results from the unauthorized use or disclosure of NOV's Proprietary Information. No part of this document or NOV's Proprietary Information, in whole or in part, may be used, reproduced, disclosed or transmitted in any form or by any means, mechanical, electronic or otherwise without NOV's prior written permission. NOV retains all intellectual property rights and any other rights in or to this document and NOV's Proprietary Information.
National Oilwell Varco 1200 Cypress Creek Road Cedar Park, Texas 78613 USA Phone 512-340-5000 Fax 512-340-5219
© Copyright 2019 National Oilwell Varco. All Rights Reserved.
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Table of Contents Chapter 1: General Information
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notes, Cautions, and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Illustrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Personnel Training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General System Safety Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replacing Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Proper Use of Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 5 5 6 6 6 6 6 7 7
Chapter 2: Overview Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Controlled Vertical Drilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 NOV Double Recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Principle of Controlled Drilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Plumb Bob Tendency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Hole Deflecting Forces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Importance of Accurate Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Returning the Well to Vertical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Interpreting NOV Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Horizontal Drift Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Chapter 3: Description and Operation
Operating Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recording Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recording Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Double Recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Double Tandem Recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . High Angle Recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . High Temperature Recorders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Go-Devil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shock Absorber Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Record Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instrument Running Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Running Method No. 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Running Method No. 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Running Method No. 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Running Method No. 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Table of Contents Running Method No. 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Running Method No. 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 Running Methods For Cable Tool Drilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44 Swivel And Socket Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Preparing and Running the Recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 Running 90° Recorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Chapter 4: Repair and Maintenance
Handling Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 Go-Devil Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 Recorder and Shock Absorber Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 Maintenance of Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 Go-Devil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 Shock Absorber and Packer Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 Recorder Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59 Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 Approved Expendable Items List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Chapter 5: Parts Lists
Operating Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62 Operating Units Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66 Operating Unit Maintenance Tools and Baffles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69 Go-Devil Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71 1-5/8 in. Spear Point Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73 1-5/16 and 1-3/8 in. Spear Point Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74 Shock Absorber Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75 Sinker Weight Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Maintenance Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Retrievable Centralizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Baffle Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Subs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Upper Core Barrel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Angle Test Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
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1: General Information This manual contains installation, operation, troubleshooting, and parts information, which should enable qualified personnel to install, operate, maintain, and troubleshoot this system. Every effort has been made to ensure the accuracy of the information contained herein. National Oilwell Varco (NOV) will not be held liable for errors in this manual or for consequences arising from misuse of this material.
Conventions
Notes, Cautions, and War nings
Notes, cautions, and warnings provide additional information to advise readers to take specific action to protect personnel from potential injury or lethal conditions. They may also inform the reader of actions needed to prevent equipment damage. Pay close attention to the advisories. Note:
The note symbol indicates that additional information is provided about the current topics.
Caution:
The caution symbol indicates that potential damage to equipment or injury to personnel exists. Follow instructions explicitly. Extreme care should be taken when performing operations or procedures preceded by this caution symbol.
Warning:
The warning symbol indicates a definite risk of equipment damage or danger to personnel. Failure to observe and follow proper procedures could result in serious or fatal injury to personnel, significant property loss, or significant equipment damage.
ESD Warning:
The ESD (Electrostatic Discharge) warning symbol indicates the potential for static electrical discharge exists, which can damage or destroy electronic components, and can set off explosions or fires in flammable environments. Static control precautions are needed when encountering this symbol.
Illustrations Illustrations (figures) provide a graphical representation of equipment components or screen snapshots for use in identifying parts or establishing nomenclature, and may or may not be drawn to scale. For component information specific to your application, see the technical drawings included with your NOV documentation.
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1: General Information
Safety Requirements NOV equipment is installed and operated in a controlled drilling rig environment involving hazardous situations. Proper maintenance is important for safe and reliable operation. Procedures outlined in NOV manuals are the recommended methods of performing operations and maintenance. Caution: To avoid injury to personnel or equipment damage, carefully observe requirements outlined in this section.
Personnel Training All personnel performing installation, operations, repair, or maintenance procedures on the equipment, or those in the vicinity of the equipment, should be trained on rig safety, tool operation, and maintenance to ensure their safety. Caution: Personnel should wear protective gear during installation, maintenance, and certain operations.
Recommended Tools Service operations may require the use of tools designed specifically for the purpose described. NOV recommends that only those tools specified be used when stated. Ensure that personnel and equipment safety are not jeopardized when following service procedures or using tools not specifically recommended by NOV.
General System Safety Practices The equipment discussed in this manual may require or contain one or more utilities, such as electrical, hydraulic, pneumatic, or cooling water. Caution: Read and follow the guidelines below before installing equipment or performing maintenance to avoid endangering exposed persons or damaging equipment.
Isolate energy sources before beginning work.
Avoid performing maintenance or repairs while the equipment is in operation.
Wear proper protective equipment during equipment installation, maintenance, or repair.
Replacing Components
Verify that all components (such as cables, hoses, etc.) are tagged and labeled during assembly and disassembly of equipment to ensure correct installment.
Replace failed or damaged components with genuine NOV parts. Failure to do so could result in equipment damage or injury to personnel.
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Routine Maintenance Equipment must be maintained on a routine basis. See the service manual for maintenance recommendations. Caution: Failure to conduct routine maintenance could result in equipment damage or injury to personnel.
Proper Use of Equipment NOV equipment is designed for specific functions and applications, and should be used only for its intended purpose.
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1: General Information
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2: Overview This instruction manual contains information for the Double Recorder, Go-Devil and related equipment manufactured by NOV. The recorder is used for controlled vertical drilling of oil wells and similar applications. All previous issues of operating manuals and parts lists for this equipment are superseded by this manual which combines both types of information. This manual describes factors affecting vertical drilling, description and operation of the recorder and Go-Devil, running methods in the wellbore, maintenance requirements, and an illustrated parts list. Appropriate special tools and accessories are supplied with each recorder and Go-Devil. The recorder is simple to use and can be prepared and run by a crew of any size.
Function
Controlled Ver tical Drilling Controlled Vertical Drilling is a technique by which the plumb bob tendency and natural forces inherent in the rotary drilling process are so controlled that the drill bit is directed within confined limits of a predetermined vertical course. Regardless of the depth to which the drill bit may be carried, the resulting hole is maintained at all times within close limits of a vertical line and bottoms out within these limits.
NOV Double Recorder Since 1930, major oil companies and drilling contractors have used the NOV Recorder to guide them in their efforts to drill vertical wells. During this time, the practice of controlled vertical drilling with the aid of the NOV Recorder has become widespread. The art of drilling vertical wells without recourse to re-drilling and the use of mechanical means of straightening to prevent or remedy deflection has become an established drilling practice. Controlled vertical drilling reduces drilling time and brings about substantial savings in the drilling of every well. Successful application of controlled vertical drilling methods depends on one vital factor: The driller must accurately detect any slight deviation in order that he may properly adjust drilling weight and rotation speed to keep the course vertical. This necessitates a quick means of supplying the driller, at very frequent intervals, with extremely accurate and highly legible records of inclination. The NOV Double Recorder gives correct information which is automatically double-checked.
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2: Overview
Benefits The practice of using controlled vertical drilling methods in routine drilling operations results in many benefits, including the following:
Reduction of the number of bits required to drill the well because maximum useful life is obtained from each bit.
Reduction of power consumption because less torque is required to rotate the drillstring, and less pull is required to remove it from the hole.
Extension of drillpipe life through work being done at the bit, rather than power being dissipated in the pipe through bending, friction and other fatiguing stresses which rapidly destroy the string.
General reduction of wear and tear on oil machinery. Fewer round trips are required, and operations are uniformly smoother because of reduced vibration.
Elimination of many fishing jobs and time consuming mechanical troubles. Twist-offs and washouts, caused by excessive torque and pipe fatigue, are avoided. Hazard of sticking of the pipe through key-setting and bad hole conditions, and the consequent expense and loss of time incurred by fishing, cutting, or side tracking, as well as the loss of the tools themselves, is minimized.
Elimination of necessity for redrilling and use of mechanical hole straightening devices.
Position of casing at the desired location is more quickly established. The chance that the string will become stuck, collapsed, or parted is minimized, thus saving the cost of a secondary string. Water shut-offs and satisfactory cement jobs are more easily obtained.
Correlation of data from vertical holes. From a geological and petroleum engineering standpoint, correlation is much simpler and more satisfactory. Scientific bottom hole spacing, the establishment of structural contours, interpretation of electrical logs, and core correlations are greatly simplified.
Reduction of future costs. As long as a well is flowing, the disadvantages of a crooked hole are not apparent. In the pumping stage, the ultimate economies effected by the application of controlled vertical drilling methods are realized. Excessive cost of operation, due to mechanical difficulties directly traceable to crooked hole, forces the premature abandonment of many good producing wells, and the sacrifice of otherwise recoverable oil.
Principle of Controlled Drilling In both controlled vertical drilling and controlled directional drilling, identical principles of control are utilized. The main factors are the influence of the pendulum force of the drillstring under tension, and its flexing under compression.
Vertical Drilling The purpose of controlled vertical drilling is to direct the bit along a predetermined vertical course, thereby attaining a predetermined vertical objective. It is practiced by the regular drilling crews of the contractor or company drilling the well.
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Directional Drilling The purpose of controlled directional drilling is to direct the bit along a predetermined curved or non vertical course in such a way as to attain a remotely located objective. It is most successful under the supervision of specially trained crews and with the aid of special deflecting tools and devices. Figure 2-1 clearly shows the distinction between the purpose of these two drilling techniques.
Vertical Well Figure 2-1. Vertical and Directional Wells
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Directional Well
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2: Overview
Plumb Bob Tendency The drillstring is, in effect, a plumb bob. Figure 2-2 illustrates this. The drillpipe is the supporting member, and the drill collars and bit correspond to the bob or weight. Theoretically, the drillstring should always occupy a vertical position while suspended in the hole, and the hole drilled by means of it should be vertical. But, since it is necessary to apply pressure to the bit in order to cut away the formation, and the only way to supply pressure is to allow part of the weight of the drillstring to bear upon the bit, a portion of the drillstring above the bit must be in compression while the remainder above the point of compression is in tension. Thus, the plumb bob tendency of the drillstring is modified in proportion to the amount of weight allowed to rest upon the formation, and, for all practical purposes, is destroyed entirely if the weight is excessive. Figure 2-3 illustrates and describes the effect of drillstring weight on hole direction.
Figure 2-2. Plumb Bob Principal
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Hole Deflecting Forces Excessive Weight When excessive drilling weight is applied, and more of the drillstring is put into compression, a number of new influences are brought to bear on the bit and drill collars; influences which tend to deflect the hole from vertical. The compression of the drillstring is the original course of deflection; as the condition of compression persists, the other influences assume increasing importance.
View 1
View 2 C
A
D B Figure 2-3. Drillstring Deviation
Application of pressure to the bit modifies the plumb bob tendency of the drillstring. In view 1, the major portion of the weight of the drillstring is supported from the rotary and A is in tension. The weight of portion B is allowed to rest on the bottom of the hole in order to apply the required weight to the bit, and is in compression. If the drilling weight is perfectly adjusted to the formation, the bit will dig a vertical hole when rotated at the correct speed. In view 2, an excess of weight is being applied, and the plumb bob effect of the drillstring is nullified. The deflection of the drillpipe, due to the compression of D, tips the bit and drill collars so that weight is unevenly applied to the bit and the course of the hole shifts from vertical.
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2: Overview
Rotational Position of Drillstring One major influence on the course of the well is the position in the hole of the drillstring a short distance above the bit. When the drillstring is under compression. it is no longer concentric with the hole. As shown in Figure 2-4, if the drillstring is lying toward the well of the hole, as at A, the bit will be deflected in the opposite direction, A’. Should the position of the drillstring change to B, the bit will be deflected toward B’. Whether the pipe actually contacts the wall of the hole or not, this deflection of the drillstring will tend to cause the bit to dig at an angle. Rotary speed, length and diameter of drill collars, position of reamers and stabilizers, and the diameter of the hole, are modifying factors which further influence the rotational position of the drillstring above the bit. Bowing of the drillstring under compression does not necessarily occur above the drill collars. If the drill collars are very long they, too, are subject to bending. Thus, even though the diameter of the drill collars may be large in comparison to the diameter of the hole, the bit may be deflected at a considerable angle.
B
C
A'
A
B'
Figure 2-4. Drill Bit Deflection
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Correcting Hole Deflection As long as excessive weight is applied, the hole will continue to be deflected. Deflection is generally in one direction because the rotational position of the drillstring becomes fixed, and the angle of deflection increases (Figure 2-5). If the angle of deflection is permitted to increase, it is difficult to return the hole to vertical. Aside from redrilling, setting a whipstock, or resorting to some other mechanical method, the only quick, sure, and economical means of straightening the hole is to allow the plumb bob tendency to operate. Any mechanical means is expensive, involves a loss of time, and is not certain to produce a satisfactory result. Even though the angle of deflection is comparatively high, the hole can be returned to vertical by allowing the plumb bob tendency of the drillstring to pull the hole back to a vertical direction. Unfortunately, the plumb bob tendency is effective only below the point at which the hole is being straightened (See diagram B of Figure 2-5).
A
A'
B'
Figure 2-5. Hole Straightening
When the angle of deflection from vertical becomes excessive as in A', a subsequent return to vertical, as in B' causes the plumb bob tendency of the drillstring to be effective only through A, the lowest turning point.
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2: Overview
Inclined Drill Collars Another influence that becomes of great importance, as soon as the course of the hole departs from vertical, is the tendency of the drill collar to tip, of its own weight, toward the low side of the hole. The drill collar becomes unstable, as does any other weight resting on an inclined plane. When a perpendicular is dropped from the weights center of gravity, it falls outside its base. This is illustrated in Figure 2-6. The unstable state of the drill collar in a non-vertical hole (Figure 2-7) is exaggerated greatly when the drillstring is under compression.
CG CG
Figure 2-6. Stability of Objects
An inclined object is stable when a plumb line from its center of gravity falls within its base. It is unstable and tips over when the plumb line falls outside of its base.
C
G
Unstable
C
G
Stable
Figure 2-7. Drill Collar Stability Conditions
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Effect of Lateral Forces If the hole is vertical, the upper portion of the drillstring is being kept in tension, and only that portion of the weight of the drill collars required to cut the formation is allowed to bear upon the bit. In effect, the line of force is perpendicular. Any slight deflection of the course of the hole from vertical, however, immediately causes a horizontal or lateral force to be introduced at the point where the bit contacts the formation. The composition of these two forces, perpendicular and horizontal, is shown in Figure 2-8. The horizontal component increases as the angle of deflection from vertical increases, and may be expressed as “push” exerted sideways on the bit. This factor, acting with the eccentric rotational position of the drillstring and the unstable condition of the inclined drill collar, makes the hole depart from vertical at a constantly increasing angle.
C
G
C
G
C
G
Figure 2-8. Effect of Lateral Forces
Composition of forces showing lessening of effective drilling weight through introduction of lateral forces arising from inclination of the hole. The length of the horizontal line represents the magnitude of the lateral forces on the bit.
Multiple Effects As Figure 2-8 shows, drilling efficiency is sharply reduced by lateral forces. When the deflection from vertical is a small fraction of one degree, the loss of efficiency is small, and does not result in a great waste of drilling weight. But, as the angle increases, less and less of the drilling weight is being employed as useful downward force to make the bit cut away the formation. Thus, while the drilling weight being used might be perfectly suited to the formation, if the hole were vertical, it would not be fully effective if the hole were being drilled at an angle. Applying this reasoning to a hole that is five degrees from vertical readily shows that over-compression of the drillstring will probably occur, usually due to the attempt of the driller to apply additional weight in order to make the bit cut at the rate his experience tells him is proper for the particular formation. This over compression of the drillstring will at once increase the effect of all of the other factors, which cause the hole to be deflected and the angle of inclination will be increased accordingly.
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26-26-MAN D 18 of 88
2: Overview
Importance of Accurate Records With so many variable conditions opposing the normal tendency of the drillstring to assume a vertical position, it is obvious that the driller must have a means of constantly checking the course of the hole. He must have available highly accurate records of inclination, readable to a small fraction of a degree, to guide him in adjusting the weight and rotation speed of the bit so that he can prevent any inclination angle from increasing to a critical point.
Instrument Accuracy The recording instrument used in controlled vertical drilling must have a high degree of accuracy. In order to confine the hole to a vertical course, the driller must be able to detect the slightest change in angle. The evidence on which he bases his judgment as to the proper adjustment of drilling weight and rotation speed must be reliable, or his work will be misdirected.
NOV Double Recorder The angle indicator of the NOV Double Recorder is extremely sensitive, and comes to rest precisely at the correct angle. The record is made in the form of two small perforations in an accurately graduated and located chart. This record accurately shows fractions of a degree of inclination.
Retur ning the Well to Ver tical Variation of Bit Weight When the inclination of the hole is discovered while the angle is small, the angle is easily broken and the hole guided back to vertical, as shown in Figure 2-9. This is done by reducing the drilling weight (thus relieving the compression of the drillstring) and allowing the weight of the string to exercise its full plumb bob effect. Closely spaced readings must be taken so that the driller knows when to readjust the drilling weight. Figure 2-9, View A, shows a hole commencing to drift from vertical. The rotational position of the drillstring above the bit is on the side of the hole opposite the direction of drift. Reducing the drilling weight and rotating at comparatively high speed enables the bit to cut away toward the low side, and the newly drilled hole turns toward vertical (View B). When an inclination record shows the angle is decreasing, increased weight shifts the rotational position of the drillstring to the opposite side of the hole (View C) thus reversing the direction of the bit, and the hole is guided back to the vertical course. Deflections caused by guiding the hole in this manner are so small that the course of the hole is, for all practical purposes, vertical.
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2: Overview
26-26-MAN D 19 of 88
Controlling the course of the hole by adjustment of drilling weight. A: Hole drifting from vertical. B: Plumb bob tendency of drillstring becomes effective when drilling weight is reduced. C: Subsequent compression of drillstring reverses course of hole.
A B
C Figure 2-9. Wellbore Vertical Control
Frequent Readings Exercising the plumb bob effect of the drillstring is the only means of breaking the angle of inclination without recourse to the use of mechanical aids. Frequent readings taken with the NOV Double Recorder constantly inform the driller of the effect on the bit of his weight and rotation speed adjustments. With this knowledge, he can confine the hole to a vertical course in any formation. More frequent readings are necessary in formations that are dipping or difficult to drill than in flat-lying or easy-to-drill formations. It must be remembered that in controlled vertical drilling careful attention is paid to angles amounting to fractions of a degree. Horizontal travel resulting from drift at these Min angles is very slight and is compensated for by equal travel in an opposite or different direction so that the hole bottoms out virtually under the rotary table, even though the hole may be drilled to great depth. No directional trend is developed, a fact evidenced by the ability of the driller to reduce angles at will by regulating weight on the bit.
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26-26-MAN D 20 of 88
2: Overview
Interpreting NOV Records The significance of any one record of deviation can be interpreted only in light of the records immediately preceding it. For this reason, deviation records should be taken systematically and at regular intervals. Figure 2-10, Views A, B and C, all show low deviation, but each represents an entirely different condition and presents a different drilling problem to those who employ controlled vertical drilling methods. View A:
All forces acting on the bit are under control, and full drilling efficiency and speed can be safely maintained. No increasing curve or sustained inclination is present, and the driller is prepared to meet hard or tough going with certainty.
View B:
A curve of increasing angle is established. This must be broken before safe control can be regained.
View C:
The angle has been broken, and a curve of decreasing angle has been established. This indicates that the course of the hole may soon be brought under proper control.
10'
0°
0°
30'
5'
15'
0°
15'
30'
20'
40'
1°15'
15'
1°
1°
5'
1°20'
45'
0° A
2°
20'
B
C
Deviation records must be taken in close series for proper interpretation. Figure 2-10. Examples of Deviation Records
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2: Overview
26-26-MAN D 21 of 88
Horizontal Drift Table This table may be used to calculate the maximum possible horizontal drift in a well. Due to the fact that most wells do not maintain the same direction, but have a tendency to corkscrew, it is difficult to calculate the actual horizontal drift of a well. To find the total amount of horizontal drift possible in a well or a given section of the hole, it is necessary to calculate horizontal drift from survey to survey, then add all calculations to obtain a total. If the first drift record was one degree and was taken at 100 ft, the horizontal drift will be 1.7 ft. If the next drift record reads two degrees and is taken at a depth of 200 ft, the amount of hole made since taking the last drift record is 100 ft. Opposite 100 and under the two degree column we find 3.5 ft horizontal drift for the second 100 ft of hole. To get the total horizontal drift at this depth, add the horizontal drift for the first 100 ft of hole, or 1.7 ft, to the horizontal drift for the next 100 ft of hole, or 3.5 ft. This amounts to a total of 5.2 ft for the maximum horizontal drift at the new depth. Continue with each drift record taken, using the amount of hole made since the last drift record. Add the horizontal drift found for each drift record to the previous total. Horizontal Drift Table
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Amt of Hole Made
Drift Angle for Double Recording Drift Instruments 1°
2°
3°
4°
5°
6°
7°
8°
9°
10°
12°
14°
50
.9
1.7
2.6
3.5
4.4
5.2
6.1
7.0
7.8
8.7
10.4
12.1
100
1.7
3.5
5.2
7.0
8.7
10.5
12.2
13.9
15.6
17.4
20.8
24.2
150
2.6
5.2
7.9
10.5
13.1
15.7
18.3
20.9
23.5
26.0
31.2
36.3
200
3.5
7.0
10.5
14.0
17.4
20.9
24.4
27.8
31.3
34.7
41.6
48.4
250
4.4
8.7
13.1
17.4
21.8
26.1
30.5
34.8
39.1
43.4
52.0
60.5
300
5.2
10.5
15.7
20.9
26.1
31.4
36.6
41.8
46.9
52.1
62.4
72.6
350
6.1
12.2
18.3
24.4
30.5
36.6
42.7
48.7
54.8
60.8
72.8
84.7
400
7.0
14.0
20.9
27.9
34.9
41.8
48.7
55.7
62.6
69.5
83.2
96.8
450
7.9
15.7
23.6
31.4
39.2
47.0
54.8
62.6
70.4
78.1
93.6
108.9
500
8.7
17.4
26.2
34.9
43.6
52.3
60.9
69.6
78.2
86.8
104.0 121.0
550
9.6
19.2
28.8
38.4
47.9
57.5
67.0
76.5
86.0
95.5
114.4
600
10.5
20.9
31.4
41.9
52.3
62.7
73.1
83.5
93.9
104.2 124.7 145.2
650
11.3
22.7
34.0
45.3
56.7
67.9
79.2
90.5
101.7
112.9
700
12.2
24.4
36.6
48.8
61.0
73.2
85.3
97.4
109.5 121.6 145.5 169.3
750
13.1
26.2
39.3
52.3
65.4
78.4
91.4
104.4
117.3
800
14.0
27.9
41.9
55.8
69.7
83.6
97.5
111.3
125.1 138.9 166.3 193.5
850
14.8
29.7
44.5
59.3
74.1
88.8
103.6
118.3
133.0 147.6 176.7 205.6
900
15.7
31.4
47.1
62.8
78.4
94.1
109.7 125.3 140.8 156.3 187.1 217.7
950
16.6
33.2
49.7
66.3
82.8
99.3
115.8
1000
17.5
34.9
52.3
69.8
87.2
104.5 121.9 139.2 156.4 173.6 207.9 241.9
133.1
135.1 157.2
130.2 155.9 181.4
132.2 148.6 165.0 197.5 229.8
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26-26-MAN D 22 of 88
2: Overview
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26-26-MAN D 23 of 88
3: Description and Operation This chapter provides description and operation information for the Double Recorder and the Go-Devil.
Operating Units A total of ten different operating units are available. Each unit consists of both the recording instrument and the Go-Devil. The recording instrument contains a timing device and a marking device which provides a method for making an accurate record of a hole. The Go-Devil acts as a sealing container and vehicle for the recording instrument. These two major assemblies, along with other equipment, are assembled to function in one or more running methods.
Description
Recording Instrument The recording instrument is called the double recorder or double tandem recorder (Figure 3.1). It has two main parts: an angle indicator and a timing element, both of which are completely enclosed and sealed elements. The recorder produces a permanent record. Hole inclination is shown by two small perforations, made by the needle-sharp point of the angle indicator, on an accurately graduated, replaceable chart (Figure 3.1) Caution: The angle indicator and timing element are a matched set and should not be interchanged with their equivalent from another recorder. Improper operation may result.
Double Tandem Recorder 3
6
Timer Dial Timing Element Double Recorder
Cocking Dial Angle Indicator
Figure 3.1 - Recorders with Timing Element and Chart
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Chart
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26-26-MAN D 24 of 88
3: Description and Operation
Operation For operation, the precision-scaled chart is placed in the recording element and the timing element is set to desired operating time period. The head is then cocked and the timing element inserted into the angle indicator. The assembled instrument is then sealed in the Go-Devil. The Go-Devil is then run into the well by one of the running methods. At the expiration of the time for which the instrument was set, the timing element releases and descends on the angle indicator, punching a hole in the chart. The chart head then retracts and rotates ready for a second record. Shortly thereafter, the head descends on the angle indicator again to make the second record. After punching the second record, the chart head retracts and the instrument is ready for retrieval.
Recording Time The entire recording procedure is accomplished in less than 60 seconds. Well pressure does not affect either the operation or the reading in any way, and the angle indicator is so precisely balanced that it comes to rest in 10 seconds, no matter how violently it has been agitated. The chart, which can be read accurately within 1/4th of a degree, forms a permanent record of the angle reading. With two punched holes in the chart, the operator can be sure of a correct reading. Should the records fail to duplicate, the operator knows immediately that the record is “wild,” and can check for causes immediately. A complete set of these duplicate records gives an instant picture of the entire course of the well.
Double Recorder The standard double recorder for a 1-1/4 in. ID Go-Devil has a range of 0-8°; a 1 in. ID Go-Devil has a range of 0-7°.
Double Tandem Recorder The double tandem recorder, designed to attach to another double tandem recorder (Figure 3.1), allows two separate degree readings using recorders of a different degree sensitivity. The double tandem recorder uses a standard sensitivity of 0 to 7°. However, if one tandem recorder uses the 0 to 7°, then the other one should use a sensitivity of 0 to 14° or 0 to 21°.
High Angle Recorder NOV also supplies high angle double recorders designed to operate in both the 1-1/4 in. ID Go-Devils and the 1 in. ID Go-Devils. Recorder ranges of 0-16, 0-24, and 0-90° are used in 1-1/4 in. ID Go-Devils. Recorder ranges of 0-14, 0-21, and 0-90° are used in the 1 in. Go-Devils. The double tandem recorders have only 0 to 14° and 0 to 21° high angle capability.
High Temperature Recorders For wells with high bottom hole temperatures, hot well recorders for the 1 in. Go-Devils have a capability of measuring downhole drift in 0-7°, 0-14°, and 0-21° with the regular and double tandem recorders. These recorders use a thin copper chart, resistant to high temperatures, rather than paper which has a low char temperature. High temperatures affect lubricants used on the hot well recorders, consequently, overhaul of the recorder should be more frequent than that required for low temperature operations. An absolute minimum of lubricant should be used on the recorder equipment and the shock absorber on hot well runs. Special lubricants, designed for high temperatures, are listed in the table titled "Approved Expendable Items List" on page 60.
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3: Description and Operation
Document number Revision Page
26-26-MAN D 25 of 88
Go-Devil Note: Acme threads on NOV equipment are special modifications and will not mate with standard Acme threads. The Go-Devil (Figure 3.2), in which the recording instrument is run in the well, is the vital second part of the equipment. It protects the recorder from shock, pressure, fluid, and dirt and is easy to handle. The recorder is protected by a rubber shock absorber which fits inside the Go-Devil tube and is reeled inside the tube via an expanding sealing packer which prevents entry of moisture and down hole pressure. The spear point assembly on the bottom of the Go-Devil incorporates two springs which protect the Go-Devil from shock. This significantly lengthens the life of Go-Devil joints and threaded areas. To prevent corrosion, all Go-Devil parts are made from stainless steel or other non-corroding material.
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Document number Revision Page
26-26-MAN D 26 of 88
3: Description and Operation
Upper Container Plug
Shock Absorber
Recording Instrument
Go-devil Body
Figure 3.2 - Go-Devil Details
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Document number Revision Page
3: Description and Operation
26-26-MAN D 27 of 88
Shock Absorber Mechanism The Go-Devil contains a shock absorbing mechanism provided to protect the double recorder when runs are made. The recording instrument is attached to the bottom of the shock absorber.
Record Accuracy Spear Points To ensure accurate recording, it is important that the proper size Go-Devil spear point is used with the proper baffle plate (See "Baffle Plates" on page 82 for baffle plate sizes). Each of the operating units is supplied with a spear point which is equal in diameter to the diameter of the Go-Devil. In addition, operating units 1, 5, 6, and 7 are supplied with an extra 2-3/4 in. OD spear point and operating units 3 and 4 an extra 2-1/4 in. OD spear point. Other sizes of spear points are available as optional equipment (see item 3 in "Operating Units" on page 62). It is important to match the spear point to the drill collars or drillpipe. Improper use of spear point size will often result in an incorrect reading (See Figure 3.3).
A
B
Go-devil with spear point too small in diameter will give an incorrect inclination reading.
A spear point of correct OD will center and guide the Go-devil for a correct inclination reading.
Figure 3.3 - Application of Go-Devil Spear Points
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Document number Revision Page
26-26-MAN D 28 of 88
3: Description and Operation
Retrievable Centralizer If available spear points are too small for effective records, the retrievable centralizer (Figure 3.4), with a working diameter of 8 to 15 in., may be used. A minimum of two centralizers are required, one at the bottom and one near the top. If one or more sinker weights are used, a third centralizer may be required for added stability A
A
View A-A
Figure 3.4 - Retrievable Centralizer
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Document number Revision Page
3: Description and Operation
26-26-MAN D 29 of 88
Baffle Plates Ideally, the hole deviation recording should be taken at the drill bit. NOV supplies baffle plates designed to receive Go-Devil spear points. They are made in a full range of sizes to fit any size bit pin, or between any A.P.I. tool joint or on a Baker drillpipe float. Use of baffle plates is essential with some running methods. Plates centralize the lower end of the Go-Devil while permitting free by-pass of drilling fluid. Streamline design prevents eddy currents in the mud stream. Baffle plates are made from chrome-molybdenum alloy steel, heat treated for high resistance to shock and abrasion. For a list of available baffle plates and their application, refer to "Baffle Plates" on page 82. Figure 3.5 shows commonly used baffle plates and typical applications.
A.P.I. Regular Ring Type
A.P.I. Full Hole Ring Type
Baffle Plate Seated on Bit Pin
Spider Type
Baffle Plate Seated in Tool Joint
Baffle Plate Seated in Drill Pipe Float
Figure 3.5 - Baffle Plate Applications
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Document number Revision Page
26-26-MAN D 30 of 88
3: Description and Operation
Operation
Instrument Running Methods There are six methods of running the Go-Devil and double recorder down the hole on a rotary rig and two methods for holes drilled with cable tools. The table below lists particulars and capabilities of each operating unit and its running method capability. For operating unit operations see page 61.
Operating Units List of Particulars Running Method Capability Oper. Unit No.
1
Rotary Drill 1 2 3 4 5 6
X
3
X
X
Recorder Drift Measuring Capability (°)
Cable Tool Go-Devil OD, ID (in) 1 2 Stnd.
X
X
X
4
X
X
5
X
X
1-5/8, 1¼
0-8
1-5/16, 1
0-7
1-5/16, 1
0-7
X
X
1-5/8, 1
0-7
High Angle 0-16 0-24 0-90 0-14 0-21 0-90 0-14 0-21 0-90 0-14 0-21 0-90 0-16 0-24 0-90 0-14 0-21 0-90
6
X
X
X
X
1-5/8, 1¼
0-8
7
X
X X
X
X
1-5/8, 1
0-7
1-5/16, 1
0-7
0-14 0-21
1-5/16, 1
0-7
0-14 0-21
1-3/8, 1
0-7
1-5/8, 1¼
0-8
1-5/8, 1
0-7
12
X
13
14
15
X
X
X
X
X
0-14 0-21 0-90 0-16 0-24 0-90 0-14 0-21 0-90
Low Angle
High Temp
0-1½ 0-3 0-1½ 0-3 0-1½ 0-3 0-1½ 0-3
0-7 0-14 0-21 0-7 0-14 0-21 0-7 0-14 0-21
0-1½ 0-3 0-1½ 0-3
0-1½ 0-3
0-7 0-14 0-21 0-7 0-14 0-21 0-7 0-14 0-21 0-7 0-14 0-21
0-1½ 0-3 0-1½ 0-3
0-7 0-14 0-21
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3: Description and Operation
Document number Revision Page
26-26-MAN D 31 of 88
Several methods are available for taking a survey of a hole. Selection of a method depends upon the make-up of a rig. However, time and drilling conditions are two important factors. All of the methods are based on one of two processes: the Go-Devil is free dropped into the drillstring and recovered after the recording, or the Go-Devil is lowered and retrieved on a line. The following paragraphs, with tables and figures, give information necessary for rigging a Go-Devil for specific running methods.
Running Method No. 1 The Go-Devil is run into and pulled out of the drillpipe on a light measuring line (See Figure 3.6 and table titled "Equipment for Running Method No. 1" on page 33 for rig-up and equipment). This is the most widely used method, and, when adequate hoisting equipment is available, is also the fastest. Many types of light hoisting equipment are on the market, all readily adaptable for running the double recorder. Each of the four size Go-Devils can be run using Method No. 1. Depending on the condition of the mud and the friction in the hoist, it is sometimes desirable to insert a sinker weight, the same diameter as the Go-Devil, either between the spear point assembly and the container body, or between the swivel socket assembly and the container body.
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Document number Revision Page
26-26-MAN D 32 of 88
3: Description and Operation
For the most effective application of controlled vertical drilling technique, it is necessary to know the condition of the newly made hole. Therefore, the reading should be taken as close to the bit as possible and while the bit is as near bottom as connections will permit. Operating Units 1, 4, 5, 12, and 14. Measuring Line Swivel
Sinker Weight (Optional) Maximum of Three
Go-Devil and Recorder
For Gas and Air Drilling
Figure 3.6 - Running Method No. 1
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3: Description and Operation
Document number Revision Page
26-26-MAN D 33 of 88
Equipment for Running Method No. 1 Equipment PNs for Each Operating Unit Equipment (for complete list see Chapter 5) Measuring Line Swivel Upper retrievable Finger Stabilizer Assembly (Part of Go-Devil) Sinker Weight (Optional) (Maximum of three) (1-5/8 x 20 in. or 1-5/16 x 18 in.) Go-Devil Recorder (page 62, item 1) Total Length (in.) Total Weight (lb)
Operating Units No. 1
No. 4
No. 5
No. 12
No. 14
40122206
112300
40122206
112300
-
-
-
-
-
172300
40123200
40113200
40123200
40113200
-
120000 40122000 92.3* 316*
110000 40112000 91.0** 22.0**
160000 40112000 92.3* 38.6*
140000 40112005 96.7** 24.2**
170000 40112000 83.6 11.0
*Without sinker weights. Add 16.3 in. and 10.3 lb for each sinker weight added. **Without sinker weights. Add 16.3 in. and 6.8 lb for each sinker weight added. To take the reading, it is recommended that the Go-Devil be run to the bit, then picked up a ft or two, and the instrument allowed to record while the Go-Devil is suspended in this position. As the Go-Devil is of uniform diameter, it contacts the wall of the drill collar for its entire length, and is thus axially aligned with it. If there is any obstruction in the drillstring which prevents the Go-Devil from being run to the bit, a baffle plate of suitable size and type should be inserted in the joint immediately above the obstruction, and the record taken at that point.
Running Method No. 2 This method permits records to be taken at any time with the bit on bottom. The kelly is disconnected, the Go-Devil is free-dropped in the pipe, the kelly is reconnected, and the string is run back to bottom. Rotation (25 rpm or less) and circulation are maintained constantly except for a period of approximately one Min for recording. After the record is taken, the kelly is removed and the Go-Devil is recovered with a core barrel overshot assembly. Drilling can then be resumed. If retrieval is a problem, the core barrel overshot can be latched to the core barrel upper connection (Figure 3.7) and the whole unit can be lowered into the drillpipe with a running line.
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Document number Revision Page
26-26-MAN D 34 of 88
3: Description and Operation
Operating Units 3, 6, 7, and 13.
Core Barrel Upper Connection
Sand Line Rope Socket
6 or 3-Finger Stabilizer Sinker Weight (Maximum of 2)
Go-Devil and Recorder
Core Barrel Overshot
Sinker Weight Unit Figure 3.7 - Running Method No. 2
Mud Displacement Volume If the internal mud displacement volume of the drillstring is known, a pump stroke counter can be used to get the Go-Devil to bottom quickly, yet without pumping it into the bit. Various tables exist which show barrels per stroke for any combination of mud pump’s stroke length and liner size. Hence, if the internal mud displacement of the string is 16 barrels, the first 15 barrels could be pumped more rapidly, with circulation slowing as the Go-Devil approaches the survey point. 56 www.nov.com
3: Description and Operation
Document number Revision Page
26-26-MAN D 35 of 88
Centering The Go-Devil Four sizes of Go-Devils can be run using Running Method No. 2 when equipped with the accessories shown in Figure 3.7 and described in the table titled "Equipment for Running Method No. 2". However, the lower spear point assembly should be equipped with a spear point head of proper size, governed by the bore of tool joints and drill collars, to guide and center the Go-Devil in the baffle plate above the bit. For information regarding lower spear point heads and baffle plates, refer to "Spear Points" on page 27 and "Baffle Plates" on page 29. The upper end of the Go-Devil must be equipped with a retrievable-type stabilizer assembly to assure correct axial alignment while the record is being taken. This stabilizer also centers the upper core barrel overshot connection on the Go-Devil, so that the core barrel overshot, used to recover the Go-Devil, will be property engaged.
Equipment for Running Method No. 2 Equipment PNs for Each Operating Unit Equipment (for complete list see Chapter 5) Sand Line Rope Socket* Sinker Weight (72 in.)* Core Barrel Overshot* Core Barrel Upper Connection 6-Finger Stabilizer 3-Finger Stabilizer Go-Devil Recorder (page 66, item 1) Total Length Without Sinker Weight Unit (in) Total Weight Without Sinker Weight Unit (lb)
Operating Units No. 3
No. 6
No. 7
No. 13
40113130 40113110 136100-101 40112200 114500-101 110000 40112000
40123130 40123110 136200-101 40122206 124500-101 120000 40122000
40123130 40123110 136200-101 40122206 124500-101 160000 40112000
40113130 40113110 136100-101 40112200 114500-101 140000 40112005
99.1
111.0
111.0
104.8
27.4
31.1
46.1
26.9
*These items make up sinker weight unit B-PAA, PN 101709, for Operating Units 3 and 13 (length of unit: 94.5 in.; weight of unit: 33.5 lb. For additional sinker weight, add 70.3 in. and 26.5 lb). For operating units 6 and 7, these items make up sinker weight unit for B-PCC, PN 101710 (length of unit: 96.0 in.; weight of unit: 55 lb. for additional sinker weight, and 70.3 in. and 42.0 lb).
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Document number Revision Page
26-26-MAN D 36 of 88
3: Description and Operation
Running Method No. 3 The Go-Devil is dropped freely into the drillpipe and recovered when the string is removed from the hole. This method is employed when frequent round-trips of the drillstring are made. Under conditions where one hundred or more ft of hole are made with each bit, the exclusive use of Method No. 3 is not recommended because the readings are too infrequent to permit controlled vertical drilling technique to be practiced with full effect. Equipment and make-up of the running equipment are shown in Figure 3.8 and the table below.
Equipment for Running Method No.3 Equipment PNs for Each Operating Unit Equipment (for complete list see Chapter 5) 3-Finger Stabilizer Sinker Weight (Optional) (Maximum of Three) Go-Devil Recorder (page 66, item 1) Total Length (in.)* Total Weight (lb)*
Operating Units No. 1
No. 4
No. 5
No. 12
40124200
40114200
40124200
40114200
40123200
40113200
40123200
40113200
120000 40122000 92.8 31.3
110000 40112000 94.4 22.0
120000 40112000 92.8 38.3
140000 40112005 97.1 24.2
*Total length and weight do not include optional sinker weights. For Operating Units 1 and 5, add 16.3 in. and 10.3 lb for each sinker weight added; for Operating Units 4 and 12, 16.3 in. and 6.8 lb. Operating Units 1, 4, 5, and 12.
3-Finger Stabilizer
Sinker Weight (Optional) (Maximum of Three) Go-devil with Recorder
Figure 3.8 - Running Method No. 3
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Centering the Go-Devil The lower spear point assembly should be equipped with a spear point head of proper size, governed by the bore of tool joints and drill collars, to guide and center the Go-Devil in the baffle plate placed above the bit (Refer to "Spear Points" on page 27 and "Baffle Plates" on page 29). The upper end of the Go-Devil must be equipped with a rubber finger stabilizer assembly, in order to assure correct axial alignment while the record is being taken.
Free-drop Procedure Just before the dulled bit is to be pulled, the kelly is disconnected and the Go-Devil is dropped into the pipe. The kelly is then reconnected and the string is run back to bottom. Rotation (25 rpm or less) and circulation are maintained constantly except for a period of approximately one Min at the time of recording (Refer to "Mud Displacement Volume" on page 34 for pumping the Go-Devil to the bottom).
Go-Devil Retrieval After the string is removed from the hole, the bit is broken off, the baffle plate is laid aside, and the Go-Devil is taken from the drill collar.
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3: Description and Operation
Running Method No. 4 The Go-Devil is run into the drillpipe during recovery of a retrievable core barrel. The Go-Devil, fitted with the proper accessories, is attached to the regular core barrel retrieving equipment and is run into the drillpipe at the time of recovering the core barrel. See "Upper Core Barrel Connections" on page 86 for a complete list of core barrel upper connections to connect with user owned equipment. After the record is made, both the core barrel and the Go-Devil are pulled from the pipe at the same time. The Go-Devil has a core barrel overshot on the bottom and a core barrel upper connection at the top (See Figure 3.9 and the table titled, "Equipment for Running Method No. 4") which are required to fit with existing coring equipment. Only the 1-5/8 in. OD x 1 in. ID Go-Devil equipment is used with this method because of the severity of the service.
Equipment for Running Method No. 4 Equipment (for Complete list see Chapter 5) Core Barrel Upper Connection (PAA Reed) (Optional) ** Core Barrel Upper Connection (PCC or PDD Reed) (Optional) ** 6-Finger Stabilizer Go-Devil Recorder (page 66, Item1) Overshot PAA (Optional) ** Overshot PCC (Optional) ** Overshot PDD (Optional) ** Total Length (in.) Total Weight (lb)
Equipment PNs for Operating Unit No. 7 40122206 40122206 124500-101 160000 40112000 136100-101 136200-101 136300-101 110.9 57.5
* Requires special NOV M/D Totco Sub PN 127200. ** Match with existing coring equipment. Method No. 4 is the fastest and most satisfactory way of taking records while running wireline coring and drilling equipment. Records can be taken frequently, with very little additional time over that required to recover the core barrel itself. When the core barrel is to be recovered, the Go-Devil assembly is attached to the regular core barrel recovery assembly, and they are run into the drillpipe together. The overshot on the lower end of the Go-Devil engages the pull sub on top of the retractable core barrel and is thus centered in the drill collar. The retrievable stabilizer on the upper end of the Go-Devil assembly ensures axial alignment while the record is being taken. Both the Go-Devil and core barrel are then pulled
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26-26-MAN D 39 of 88
out of the pipe. The core barrel is disengaged and laid down first, then the Go-Devil assembly is detached from the regular core barrel recovery assembly. Operating Unit 7.
Core Barrel Upper Connection (Selected to Fit With Existing Coring Equipment)
6 or 3-Finger Stabilizer
Go-Devil and Recorder
Overshot (Selected to Fit With Existing Coring Equipment)
Figure 3.9 - Running Method No. 4
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26-26-MAN D 40 of 88
3: Description and Operation
Running Method No. 5 The Go-Devil is run into and pulled out of the drillpipe with the sand line. The preferred setup is as follows (See Figure 3.10 and "Equipment for Running Method No. 5"): The lower spear point assembly is fitted with a spear point head of suitable size to guide and center the Go-Devil in the baffle plate placed above the bit. Connected to the top of the Go-Devil are one or two six-ft sinker weights. A retrievable stabilizer is placed at the top of the sinker weight to axially align the entire assembly in the drill collar. Between the sand line rope socket and the retrievable stabilizer, a swivel unit is placed which permits the line to turn without disturbing the Go-Devil resting on the baffle plate. With this setup, the Go-Devil is run into the drillpipe and seated on the baffle plate. The recording is taken with the line slightly loose.
Equipment for Running Method No. 5 Equipment (for complete list see Chapter 5) Sand Line Rope Socket Sand Line Swivel 6-Finger Stabilizer 3-Finger Stabilizer Sinker Weight (72 in.) (Optional) (Maximum of two) Go-Devil Recorder (page 62, Item 1) Total Length (in.) Total Weight (lb)
Equipment Part numbers for Each Operating Unit No. 3
No. 6
No. 7
No. 13
40113130 40113131
40123130 123120-101 124500-101
40123130 123120-101 124500-101
40113130 40113131
114500-101
114500-101
40113110
40123110
40123110
40113110
110000 40112000 181.4* 54.5*
120000 40122000 193.6** 86.3**
160000 40112000 193.6** 93.3**
140000 40112005 187.2* 56.6*
* If the second sinker weight is added, add 70.3 in. to length and 26.5 lb to weight. ** If the second sinker weight is added, add 70.3 in. to length and 42.0 lb to weight.
Alternate setup An alternate setup for running via Method No. 5 requires that a spear point head of the same diameter as the Go-Devil body be attached to the lower spear point assembly. The finger stabilizer, sand line swivel, and sand line rope rocket should be removed and an upper connection adapter sub (See "Subs" on page 84 for correct sub size) should be attached to the upper end of the GoDevil for connecting to the customer’s regular sinker bar or swab iron. Particular attention should be given to ensure that the sinker or swab is straight and not excessively long. Maximum length of twelve ft is recommended. When this alternate setup is used, the Go-Devil must be suspended in the drill collar a short distance above the bit while the record is being taken so that the Go-Devil is axially aligned with the drill collar.
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Clean Up After the run, the sinker weight assembly must always be removed from the upper container plug before the plug is broken from the Go-Devil body. In this way, mud and water are prevented from running off the sinker weight into the container tube. Operating Units 3, 6, 7, and 13. Sand Line Rope Socket
Sand Line Swivel
6 or 3-Finger Stabilizer
Sinker Weight
Go-Devil and Recorder
Figure 3.10 - Running Method No. 5
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3: Description and Operation
Running Method No. 6 This method runs the Go-Devil in and out on a wireline of 1/4 to 5/8 in. diameter. Either a 1-5/8 x 11/4 in. or a 1-5/8 x 1 in. Go-Devil can be used with this method. The 1-5/8 x 1 in. is designed for use in extremely rugged conditions. Method No. 6 is designed for large diameter holes of 8 in. minimum to 15 in. maximum. The Go-Devil will run inside a drillstring or a cased hole with an ID within the 8 to 15 in. limits. The Go-Devil should be lowered to the bottom of the hole and then raised approximately a ft off the bottom to record. The design of the centralizers used with this method (See Figure 3.11 and "Equipment for Running Method No. 6") allows expandable runners to expand or contract in response to down-hole conditions. This expansion keeps the Go-Devil aligned with the axis of the hole and assures recording accuracy.
Equipment for Running Method No. 6 Equipment (for Complete list see Chapter 5) Sand Line Socket Sand Line Swivel Retrievable Centralizer Sinker Weight (72 in.) Go-Devil Recorder (page 66, item 1) Total Length (in.)* Total Weight (lb) * Expansion Dimension (in.)
Equipment Part Numbers for Operating Unit 15 101715-101
101715-102
40123130 123120-101 124400 40123110 120000 122000 316.0 (26-1/3 ft.) 184.0 15 max 8 min.
40123130 123120-101 124400 40123110 160000 40112000 316.0 (26-1/3 ft.) 191.0 15 max 8 min.
* Each additional sinker weight added increases the length by 70.3 in. and the weight by 42.0 lb. Each centralizer added increases the length by 34.7 in. and the weight by 31.0 lb.
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Friction of the hoist or down-hole conditions may require the addition of a third sinker weight. To provide stability to the operation, a third centralizer should be added with the sinker weight in the place shown in Figure 3.11. Operating Unit 15
Sand Line Socket Sand Line Swivel
Retrievable Centralizer
Sinker Weight Extra sinker weight and centralizer may be added here. Sinker Weight Go-devil with Recorder
Retrievable Centralizer
Spear Point Assembly (Part of Go-devil)
Figure 3.11 - Running Method No. 6
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3: Description and Operation
Running Methods For Cable Tool Drilling There are two methods for running Go-Devils in holes drilled with the cable tool method. Frequent readings from the double recorder taken by these methods will guide the driller in selecting proper line tension. A 1-5/8 in. Go-Devil is used for cable tool work.
Cable Tool Method No. 1 A length of pipe, with inside diameter slightly larger than the Go-Devil, is welded (in correct axial alignment) inside the upper portion of a bailer (Figure 3.12). This provides a socket for the Go-Devil. After the cuttings have been removed from the hole and the bailer emptied, the bailer, with the Go-Devil in place, is run to the bottom of the hole and then raised a foot or two and suspended at this point while the reading is taken. Sand Line Rope Socket
Sand Line Swivel Measuring Line Seivel Socket
Pipe Socket
Sinker Weight
Go-devil Bailer
Cable Tool Method No. 1 An ordinary bailer with socket welded in it to carry the Go-devil.
Go-Devil
Cable Tool Method No. 2 Go-devil equipment for running the recorder with sinker weights.
Figure 3.12 - Cable Tool Running Methods
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Cable Tool Method No. 2 An alternate method is to attach the Go-Devil below the sinker weight or swab iron assembly (See table titled "Subs" on page 84 for list of mating subs) using a sand line rope swivel between the sand line rope socket and sinker weight (Figure 3.12). The sinker weight should be straight, and about twelve ft in length. After cuttings have been removed from the hole, the Go-Devil is run to bottom, then raised a ft or so and suspended at that point while the reading is being taken.
Swivel And Socket Connections Some running methods require a user supplied wireline such as a sand line or measuring line. Each operating unit that uses one of these methods has a connecting socket for attaching the wireline. Two types are available: measuring line swivel and a sand line socket which has a connecting swivel.
Measuring Line Swivel Connection The measuring line swivel is designed to separate into a swivel and socket. The procedure for connecting the line is shown in Figure 3.13. The line should be 1/16-in. in diameter or smaller. How tvo attach the measuring line to the swivel socket:
1. Remove the swivel assembly and pass the wire through the socket body and under the pin of the swivel shaft.
3. Then screw the swivel back into the body and make it up hand tight.
2. With a pair of pliers, make as close and tight a tie as possible, winding at least four loops around the wire. Figure 3.13 - Measuring Line Connection
Sand Line Socket Connection The sand line socket is designed to connect to a sand line swivel to avoid twisting or kinking the wireline. The wireline must be 5/8 in. or smaller. The usual method for connecting the wireline to the socket is by pouring melted lead in the socket after the cable is fed through the socket opening a few in.
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3: Description and Operation
Preparing and Running the Recorder With training and experience, an operator can prepare the double or double tandem recorder and Go-Devil for a run in a short time. Sequence for the run is as follows: 1. Preparation 2.
Installing chart in recorder
3.
Choosing recorder time interval
4.
Recorder timer setting and assembly
5.
Attaching recorder to shock absorber
6.
Inserting assembled instrument in the Go-Devil
7.
Setting Go-Devil sealing packer
8.
Go-Devil accessories installation
9.
Running Go-Devil down the drillpipe
10. Retrieving Go-Devil 11. Go-Devil disassembly for removal of recorder 12. Removal and reading of recorder chart The following paragraphs and illustrations, in sequence, represent the activities required to run the double or double tandem recorder. The sequence follows the outline given above. Caution: The crewman responsible for handling the recorder must have clean hands prior to working with the equipment.
Preparation While other crew members are preparing the Go-Devil for the running method desired, the crewman responsible for making the run cleans his hands, removes a recording chart, envelope and recorder from the equipment and instrument box (Figure 3.14)
Figure 3.14 - Equipment and Instrument Box
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Installing Chart in Recorder Install chart in recorder by following the sequence of steps given below.
Step 1. After cleaning hands, take the recorder from the case and remove the timing element from the tube.
Step 2. Insert the record chart (printed side up) into the chart head. Take care to place the edge of the chart firmly against the base of the inside of the shoulder of the recess. The proper starting position is shown in the detail.
Step 3. The chart is then put into position, the pressure of the thumb forcing it evenly into the annular recess in the chart head.
Step 4. To ensure that the chart is seated properly and in contact with the concave bottom of the recess, press it down firmly with the head of the chart tool. The instrument is now ready for setting the operating time interval. Figure 3.15 - Recorder Chart Installation
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3: Description and Operation
Choosing Timer Interval A number of factors must be considered in choosing the time interval between starting the instrument at the surface and taking the record in the well: 1. The time required to prepare recorder and Go-Devil at the surface. This period does not exceed 1-1/2 min for most running methods, however, additional accessories will increase the time. 2.
The time of the Go-Devil’s descent until it reaches the point at which the recording will be made. This will vary with the running method used and condition of drilling mud. When the Go-Devil is dropped freely in the mud-filled drillpipe (for example, running methods No. 2 and 3) it descends at the rate of 750 to 1,000 ft/min. Calculations should be made on an assumed descent rate of 750 ft/min. When the Go-Devil is run in on a measuring line or sand line, running speed is between 500 and 750 ft/min. For calculations, assume a rate of 500 ft/min.
3.
A settling period of 30 to 45 sec at bottom before recording to allow Go-Devil and line vibrations to cease and to allow angle indicator in the recorder to come to rest.
The following examples are probable times. A double tandem recorder requires more time. Example 1: Well depth 4,000 ft, running methods No. 2 and 3. Preparing recorder and Go-Devil for dropping 1-1/2 min Dropping time (750ft/min)
5½ min
Downhole settling period
1 min
Time interval to be set on timer
9 min
*For each additional 750 ft of depth, add one min. Example 2: Well depth 4,000 ft, running methods No. 1, 4, 5, and 8. Preparing recorder end Go-Devil for dropping
1½ min
Dropping time (500 ft/min)
8 min
Downhole settling period
1 min
Time interval to be set on timer
10½ min
*For each additional 1,000 ft of depth add two minutes. With experience and familiarity of prevailing conditions, faster operation is possible, and times shown in the examples above are likely to be reduced.
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Recorder Timer Setting And Assembly The time interval, determined in "Choosing Timer Interval" on page 48, is set on the recorder timer and it is cocked and assembled per instructions given in Figure 3.16. Take care when selecting the time on the recorder setting dial. The time set into the instrument is determined by the amount of counterclockwise rotation on the setting dial. If, for example, a ten Min time interval is desired but the dial is erroneously turned beyond the ten mark, the dial cannot be turned back to ten. When approaching time interval desired, take care not to rotate dial beyond this point and remember to coordinate setting action with time required for surface activities. After the timing element has been set and started, nothing can change the time interval set. The instrument will record exactly when this period has elapsed. Caution: Do not turn the number (time) desired beyond the setting mark. attempting to set the timer back will damage the timer. Caution: The angle indicator and timing element are a matched set. Do not interchange these parts with their equivalent parts from other recorders.
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3: Description and Operation
Turn CounterClockwise
Step 1. Set the Timer. The timers on all recorders have a maximum of 60 minutes. The setting dials are marked with ranges of 5 minutes to 60 minutes. To set the time for recording, hold the timing element as shown. Rotate the lower dial counterclockwise until the index mark by the time figure chosen is in line with the setting mark. The markings are in minutes and setting can be made to approximately the nearest half-minute. Once the timer is set, the mechanism starts running. Since the starting time must be coordinated with surface preparation time, the operator should note the time of day when setting the instrument time. Winding of the timing element is automatically accomplished during the setting action of the timer.
Step 3. Insert the timing element into the angle indicating element.
Step 2. Cock the chart head. To cock the chart head, use the thumbs to rotate the cocking dial (upper dial) two full turns counterclockwise until rotation stops. Ensure that two full turns are made in the manner shown.
Rotate cocking dial two full turns counterclockwise.
Step 4. The threaded connection is made up with the fingers gripping the knurled section. No tools or wrenches used. The instrument guide rings above the knurled section of the timing element rotate independently of the rest of the instrument and are not involved with tightening or loosening the connection.
Figure 3.16 - Setting Timer and Recorder Assembly
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Recorder Installation Attach the recording instrument to the shock absorber (normally stowed in the Go-Devil when not in use) per instructions given in Figure 3.17.
Step 1. Attach threaded pin of assembled recorder to shock absorber.
Step 2. When attaching recorder to the shock absorber, hold shock absorber with one hand and rotate instrument with fingers of other hand. Hand tighten for snug fit. Use no tools or wrenches.
Step 3. Place recorder and shock absorber in the Go-devil. Figure 3.17 - Assembly of Recorder and Shock Absorber
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3: Description and Operation
Setting Go-Devil Sealing Packer Set the Go-Devil sealing packer per instructions given in Figure 3.18.
Step 1. Attach sealing packer tool to the packer before the shock absorber and recorder are completely inserted in the Go-devil.
Step 2. While the wrench portion of the tool is being turned to tighten the rubber packer, hold the packer snugly against the seating shoulder inside the Go-devil by means of the outer sleeve of the tool. Ensure that the packer is against the seating shoulder before tightening or the rubber may be expanded in the thread section and prevent proper shouldering of the upper container plug (installed next). Figure 3.18 - Setting Go-Devil Sealing Packer
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Assembling The Go-Devil Attach upper container plug and accessories to the Go-Devil as described in the following: 1. Check that threads of upper container plug (see Figure 3.2 on page 26) have been lubricated ("Go-Devil" on page 25). 2.
Attach plug to the top of the Go-Devil. Accessories for the various running methods are attached to this plug. Mating shoulders on the plug and Go-Devil are machine fitted. To avoid damage to shoulders, handle parts with care.
Caution: Use only wrenches supplied with the Go-Devil to tighten or loosen connections. 3. Tightly make up the upper container plug to the Go-Devil using only end wrenches supplied in the equipment box. Do not use cheaters. Use as much torque as would be needed to tighten automobile wheel nuts. When making up or breaking out the upper container plug, hold the Go-Devil at the lower container plug using the back-up wrench. DO NOT USE TONGS OR PIPE WRENCHES ON THE GO-DEVIL.
Running and Retrieving Go-Devil Ensure that the Go-Devil is not inserted upside down in the drillpipe. Check that the Go-Devil spear point is the first part to enter the pipe. Run Go-Devil in the hole using procedure dictated by running method used. After instrument recording time has elapsed, retrieve Go-Devil. Remove the upper container plug and shock absorber in reverse order of insertion (see "Assembling The GoDevil" on page 53 and "Setting Go-Devil Sealing Packer" on page 52).
Caution: Thoroughly wash Go-Devil down with clean water and dry with clean cloth.
Recorder Removal Remove gloves, wipe hands, and detach recording instrument from shock absorber. Separate recording and angle indicating elements.
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3: Description and Operation
Chart Removal and Reading Remove chart from recorder. Reassemble angle indicating and timing instruments and place recorder in instrument case. Read hole inclination per instructions given in Figure 3.19. Step 1. Remove chart by inserting point of chart tool in small hole in the side of the chart head. To prevent chart loss, place fingers over the chart during removal. Reassemble the recording element in the tube before placing it in the instrument case.
Step 2. reader.
Insert chart into chart
Step 3. Point chart reader toward light source and read inclination angle through magnifying glass. Two perforations on the chart should give the same readings.
Step 4. After careful interpretation of the chart, enter the hole inclination and other necessary information on the chart envelope. Place chart in the envelope and file envelope. Figure 3.19 - Chart Removal and Reading
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26-26-MAN D 55 of 88
Running 90° Recorders Running methods and operating procedure for high angle 90° recorders is identical to the procedure given in "Preparing and Running the Recorder" on page 46 through "Chart Removal and Reading" on page 54 except for the chart used. The 90° instrument uses a rectangular recording chart with a range of 0-90°, graduated in 2° increments. Instrument configuration is shown in Figure 3.20. Operating instructions for the 90° recorder are shown in Figure 3.21.
TOTCO
a. Timing and Releasing Element. It operates in the same manner as the standard double recorder.
20 10 0 10 20 30 40 50 60 70 80 90
b. Angle Indicator Element. Free rotating wheel holds rectangular 90° recording chart with 2° graduations.
c. Complete 90° Recorder. Figure 3.20 - 90° Recorder
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90° STRIP CHART
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3: Description and Operation
ORIENTING MARKS
“0”
a. Feed strip chart in recess on angle indicator wheel to the side away from the counterweight. Feed arrow end first. Align the zero on chart with orienting mark on indicator wheel rim.
b. Set timer, cock the head by rotating dial two turns, assemble elements, place in Go-devil and run recorder in the same manner prescribed for standard recorders.
c. After recording and Go-devil retrieval, remove angle indicating element. Remove chart by brushing one finger over tab, grasping chart and pulling out.
d. Place chart in reader. Fully seat chart with length parallel to ground. Note and record hole inclination.
Figure 3.21 - 90° Recorder Operating Instructions
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4: Repair and Maintenance This chapter provides instructions for the repair and maintenance of the double recorder and Go-Devil.
Handling Equipment Go-Devil Handling
Never use chain tongs or pipe wrenches to break out or make up Go-Devil connections. The 1-5/16 and 1-5/8 in. OD Go-Devils have wrench flats on the bottom container plug which is welded into the Go-Devil tube. These flats provide back-up for making up and breaking out the upper container plug. To prevent damage to the instrument shock absorber when not in use, always stow it in the Go-Devil. However, do not tighten the sealing packer as the neoprene seal may take a set and lose its ability to seal. Prevent entry of mud, water, and dirt, by capping the Go-Devil tube with the upper container plug screwed down to within 1/4 in. of seating. Caution: Replace the seal if any wear, deterioration, or damage is visible.
Recorder and Shock Absorber Handling The instrument box, supplied with each unit, provides sealed clean stowages for the recorder. When not in use, keep the recorder in the box. If necessary, clean the box interior with a brush or rag dampened with cleaning solvent (Refer to table titled "Approved Expendable Items List" on page 60). Observe the following:
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Never handle the recorder and shock absorber with gloves or dirty hands. If grease, moisture, grit or dust enter the recorder mechanism, a factory cleaning or repair job may be necessary. The recorder is a precision made component and presence of foreign material may seriously affect operation or render them useless.
Never use pliers or other tools on the recording instrument. Screwing the recorder timing element into the angle indicator tube with the fingers is adequate to bring it to a snug fit and removal is also easy. Recorder parts are made with fine threads and the tube is made of thin soft material. Although the instrument will give long, satisfactory service, it is not designed for abusive, rough handling.
Never wash any part of the recorder with water, solvent, or fluid of any kind.
If adjustment or repair of the recorder is necessary, return it to the factory.
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4: Repair and Maintenance
Maintenance of Equipment A heavy steel box is provided for stowage of the Go-Devil, spring puller cleaning rod, and brushes used for cleaning the Go-Devil and recording instrument. To keep parts in good condition and provide long service, always keep parts in the box between jobs or when transporting them between rigs. "Maintenance Unit" on page 79 shows equipment and box.
Go-Devil Cleaning Go-Devil External Cleaning After the Go-Devil has been run, complete the following: 1.
Hose down the outside and flush drilling mud from around the spear point with clean water and wipe with a clean cloth.
2.
Remove the recorder and shock absorber and then bounce the Go-Devil a few times on the point to ensure that spring is free for next run.
3.
Clean Go-Devil threads and all box and pin ends with the two thread brushes (items 3 and 7, "Maintenance Unit" on page 79).
Go-Devil Internal Cleaning Periodic cleaning of the inside of the Go-Devil tube is necessary to remove moisture, dirt and grease carried inside from threads. Procedure is as follows: 1.
Remove shock absorber from Go-Devil.
2.
Attach the Go-Devil brush (item 4, "Maintenance Unit" on page 79) to the rod and brush out loose particles.
3.
Wrap a clean dry rag around the tool hook and thoroughly swab inside the Go-Devil tube until the surface is clean and dry.
Shock Absorber and Packer Inspection Shock Absorber Check 1.
Perform visual inspection of shock to check for damage including cracks or bond failure of rubber on brass ends. Check threads on instrument end for excessive wear which may result in loosening of the instrument in operation.
2.
Flex shock and determine if there is excessive hardening and loss of resilience or if there is an appearance of small cracks when flexed.
3.
Replace shocks that have damage or have hardened and lost resilience.
Packer Seal Check 1.
Perform visual inspection of packer and verify that the surface of the packer seal is free of damage and contaminants.
2.
Flex seal and determine if there is excessive hardening and loss of resilience or if there is an appearance of small cracks when flexed.
3.
Replace packer seals that have damage or have hardened and lost resilience.
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Recorder Cleaning When the recorder and shock absorber are removed from the Go-Devil after a run, immediately wipe them clean with a clean, dry rag. Then complete the following: 1.
Remove the recorder chart and then reinstall the timing element in the instrument tube and place the recorder in the instrument case.
2.
Place the shock absorber in the Go-Devil ("Go-Devil Handling" on page 57).
3.
Remove dirt from the exterior of the angle indicator and timing element with a fine bristle brush (1, "Maintenance Unit" on page 79).
4.
Clean inside threads of instrument tube with brush (2) while holding the tube opening down to prevent filling dust from entering the interior.
5.
Remove oil-laden dirt that has accumulated around the outside of the tube or inside with a cloth dampened with cleaning solvent (Refer to table titled "Approved Expendable Items List" on page 60). Do not allow solvent to penetrate the recording mechanism or angle indicator.
Recorder Calibration Test The test stand kit ("Angle Test Kit" on page 88) provides a quick method of determining if a recorder is giving a correct reading. After a long period of field use or when the recorder has not received proper care, the readings may suggest a malfunction of the recorder. To test the recorder, complete the following: 1.
Place the test stand on a level surface and adjust the balance screws until the two bubbles indicate the test plate is level.
2.
Select the correct holding tube assembly (3) for the recorder end set the holding tube in the socket of the bearing which corresponds to the type of recorder under test.
3.
Prepare the recorder as described in "Preparing and Running the Recorder" on page 46 using a five Min time set. Use a standard watch or clock with a second sweep as a control timer.
After the recorder has been prepared and set at the determined time, complete the following:
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1.
Place the recorder in the holding tube with the same orientation as in the Go-Devil.
2.
When the timing device has activated both times, compare the time of a watch and the recorder timer. For the 5-min test, allow 15 sec tolerance (For a 60-min test, allow a 3 min tolerance).
3.
Remove the chart and observe it in a chart reader. The punch marks should be on the center line of the appropriate angle circle. If the punch marks are outside the circle by 1/ 16 in. (0.06) or the deviation between the two punch marks exceed 1/16 in. (0.06), return the recorder to the factory for repair.
Document number Revision Page
26-26-MAN D 60 of 88
4: Repair and Maintenance
Lubrication Go-Devil Lubrication After each run, always clean the threads of the Go-Devil tube and upper container plug and lightly lubricate them with a small amount of silicone lubricant (see "Approved Expendable Items List" below.) Do not use thread dope. Do not use an excessive amount of lubricant or it may run down the tube and impair operation of the recorder.
Recorder Lubrication The only lubrication required for the recorder is on the coarse pin thread which connects the instrument to the shock absorber and the fine thread between the timing element end the instrument tube. At these locations, sparingly apply dry film lubricant (see "Approved Expendable Items List" below) before screwing parts together.
Approved Expendable Items List Part No
Description
992405-001
Silicone grease
Commercial
Cleaning Solvent (Trichloroethylene)
991708
Dry Film Lubricant
992405-009
Silicone Lubricant
60 www.nov.com
Document number Revision Page
26-26-MAN D 61 of 88
5: Parts List This chapter contains an illustrated parts breakdown (IPB). The IPB consists of component illustrations and accompanying parts lists. The “use on code” column indicates variations of one part to another. Parts related to a particular assembly carry the same code letter as the assembly. Common parts are not coded. Assembly Number
Description
ABA8AT4N9
Operating Unit #1 with 8° Operating Unit #1 with 16°
A
ABA8AU4N9
Operating Unit #3 with 7°
B
ABA3AC2M8
Operating Unit #4 with 7°
C
ABA4AC4N9
Operating Unit #5
D
ABA8AT5N9 ABA8AY5N9 ABA8AU5N9
Operating Unit #6 Operating Unit #6 with 14° Operating Unit #6 with 16°
E
ABA4AC5N9
Operating Unit #7 Operating Unit #7 with 14°
F
ABA5AKAC2M8
Operating Unit #12
G
ABA5AKAC2M8
Operating Unit #13
H
ABA6AC0Z0
Operating Unit #14
I
ABA8AY6D0
Operating Unit #15 1-5/8 x 1-1/4 in. Go-Devil
J
ABA4AC6D0
Operating Unit #15 1-5/8 x 1 in. Go-Devil
K
ABA CVD
5
AKAB
2
A
Use on Code
8 AUX SPEAR POINT / OVERSHOT
GO DEVIL ASSEMBLY RETRIEVAL ATTACHMENTS RECORDER ASSEMBLY
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STABILIZER / CENTRALIZER
Document number Revision Page
26-26-MAN D 62 of 88
5: Parts List
Operating Units 10
11
20
8
2 19
9
17
21 16 18
1
14 5 6
22
DOUBLE RECORDER ASSY
DOUBLE TANDEM RECORDER ASSY
13
3
23
Figure 5.1: Operating Units
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Document number Revision Page
5: Parts List
26-26-MAN D 63 of 88
Operating Unit Parts
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Item No
Part No.
1
40122000
1
40112000
1
40112005
1
122030
1
122010
1
40122020
1
40122090
1
112030
1
40112010
1
40112020
1
40112090
1
40112130
1
40112140
1
112150
1
112015
1
112025
1
40112125
1
112135
1
112145
Description Recorder Assembly, Double, 0 to 8° standard: 1-1/4 in. OD (one or more designated double recorders listed below may be substituted) Recorder Assembly, Double,0 to 7° standard: 1 in. OD (one or more designated double recorders listed below may be substituted Recorder Assembly, Double tandem instrument 0 to 7° standard, 1 in. OD (one or more designated double tandem recorders listed below may be substituted) (Requires one other double tandem instrument recorder assembly of a different range: Refer to PNs 112015, 112025, 40112125, 112135, and 112145) Recorder Assembly, Double, 0 to 3°, 1-1/4 in. OD (optional for PN 122000) Recorder Assembly, Double, 0 to 16°,1-1/4 in. OD (optional for PN 122000) Recorder Assembly, Double, 0 to 24°, 1-1/4 in. OD (optional for PN 122000) Recorder Assembly, Double, 0 to 90°, 1-1/4 in. OD (optional for PN 12200) Recorder Assembly, Double, 0 to 3°, 1 in. OD (optional for PN 112000) Recorder Assembly, Double, 0 to 14°, 1 in. OD (optional for PN 112000) Recorder Assembly, Double, 0 to 21°, 1 in. OD (optional for PN 112000) Recorder Assembly, Double, 0 to 90°,1 in. OD (optional for PN 112000) Recorder Assembly, Double, hot well, 0 to 7°, 1 in. OD (optional for PN 112000) Recorder Assembly, Double, hot well, 0 to 14°, 1 in. OD (optional for PN 112000) Recorder Assembly, Double, hot well, 0-21°,1 in. OD (optional for PN 112000) Recorder Assembly, Double tandem, 0 to 14°, 1 in. OD (optional for PN 112005) Recorder Assembly, Double tandem instrument 0 to 21°, 1 in. OD (optional for PN 112005) Recorder Assembly, Double Tandem Instrument, Hot Well, 0 to 7°, 1 in. OD (optional for PN 112005) Recorder Assembly, Double tandem instrument, hot well, 0 to 14°, 1 in. OD (optional for PN 112005) Recorder Assembly, Double tandem instrument hot well, 0 to 21°, 1 in. OD (optional for PN 112005)
Qty
Use on Code A, E, J
1
B, C, D, F, I, K
1
G, H
AR
A, E, J A, E, J
A, E, J AR AR AR AR AR AR AR
B, C, D, F, I, K B, C, D, F, I, K B, C, D, F, I, K B, C, D, F, I, K B, C, D, F, I, K B, C, D, F, I, K B, C, D, F, I, K G, H
AR
G, H
AR
G, H
AR
G, H
AR
G, H
Document number Revision Page
26-26-MAN D 64 of 88
5: Parts List
Operating Unit Parts (Continued) Item No
Part No.
2
120000
2
110000
2
160000
2
140000
2
170000
3
137210
3
40117190
3
40127001
3 3 3 3
137170 137190 40137200 137220
3
40117001
3 4 4 5 6 6
117170 40124200 40114200 40124220 40124210 40114210
7
124500-101
8 9 10 11
40124220 40124509 40124508 40124510
12
114500-101
12
40127007
13 14 14 15 15 16
40124220 40114510 40127010 112300 122206 112320
Description
Qty
Go-Devil Assembly, 1-5/8 in. OD x 1-1/4 in. ID (See "Go-Devil Assembly" on page 71) Go-Devil Assembly, 1-5/16 in. OD x 1 in. ID (See "Go-Devil Assembly" on page 71) Go-Devil Assembly, 1-5/8 in. OD x 1 in. ID (See "GoDevil Assembly" on page 71) Go-Devil Assembly, Tandem, 1-5/16 in. OD x 1 in. ID (See "Go-Devil Assembly" on page 71) Go-Devil Main Assembly, 1-3/8 in. OD x 1 in. ID (for gas and /or air drilling) (See "Go-Devil Assembly" on page 71) Head, Spear point, 2-3/4 in. OD (for 1-5/8 in. OD GoDevil) Head, Spear point, 2-1/4 in. OD (for 1-5/16 OD Go-Devil) Head, Spear point, 1-5/8 in. OD (optional) for PN 137210) Head, Spear point, 1-7/8 in. OD (optional for PN 134210) Head, Spear point, 2-1/4 in. OD (optional for PN 137210) Head, Spear point, 2-1/2 in. OD (optional for PN 137210) Head, Spear point, 4 in. OD (optional for 137210) Head, Spear point, 1-5/16 in. OD (optional for PN 117190) Head, Spear point, 1-7/8 in. OD (optional for PN 117190) Stabilizer Assembly, 3 finger, for 1-5/8 in. Go-Devil Stabilizer Assembly, 3 finger, for 1-5/16 in. Go-Devil Finger, Stabilizer, 3-1/2 in. Body Stabilizer, 3-finger,1-5/8 in. Body Stabilizer, 3-finger, 1-5/16 in. Stabilizer Assembly, Retrievable, 6-finger, for 1-5/8 in. Go-Devil (for Running Method 2 and 4) Finger, Stabilizer, 3-1/2 in. Pin End, 1-5/8 in. Box End, 1-5/8 in. Body, Stabilizer, 6-finger, 1-5/8 in. Stabilizer Assembly, Retrievable 3-finger for 1-5/16 in. Go-Devil Stabilizer Assembly, Retrievable, 3-finger, 1-5/8 in. (optional for PN 124500) for 1-5/8 in. Go-Devil Finger, Stabilizer, 3-1/2 in. Body, Stabilizer, 3-finger, 1-5/16 in. Body, Stabilizer, 3-finger, 1-5/8 in. Swivel Socket Assembly, Measuring line 1-5/16 in. Swivel Socket Assembly, Measuring line,1-5/8 in. Bushing, Swivel socket, 1-5/8 in.
Use on Code 1
A, E, J
1
B, C
1
D, F, K
1
G, H
1
I
1
A, D, E, F
1
B, C, G, H
AR
A, D, E, F
AR AR AR AR
A, D, E, F A, D, E, F A, D, E, F A, D, E, F
AR
B, C, G, H
AR 1 1 3 1 1
B, C, G, H A, D C, G
1
E, F
A, D C, G
6 1 1 1 1
B, H
1
E, F
3 1 1 1 1 1
B, H E, F C, G D C, G
88 www.nov.com
Document number Revision Page
5: Parts List
26-26-MAN D 65 of 88
Operating Unit Parts (Continued) Item No
Part No.
Description
16 17 17 18 18 19 19
40122311 999304-005 999277-005 112330 40122312 112310 122310
20
40112200
20
40122200
20 20
40122216 40112211
21
136100-101
21
136200-101
21
136300-101
22
127200
23
40123200
23
40113200
Bushing, Swivel socket, 1-5/8 in. Pin, Spring Pin, Spring Shaft, Swivel socket Shaft, Swivel socket Body, swivel socket, 1-5/16 in. Body, swivel socket, 1-5/8 in. Core Barrel Upper Connection, Reed type A (Pin, 1-8 mod. Acme) (mates with overshot PAA) See "Upper Core Barrel Connections" on page 86 for a complete list. Core Barrel Upper Connection, Reed type C and D (Pin, 1-1/4-8 mod. Acme) (mates with overshot PCC or PDD) See "Upper Core Barrel Connections" on page 86 for a complete list. Conn, Upper Core BBL Conn, Reed “A” Core BBL Overshot, PAA (1-8 mod, Acme pin requires sub PN 127200) (optional) (required for Running Method No. 4) Overshot, PCC (optional) (required for Running Method NO. 4) (Pin, 1-1/4-8 mod. Acme) Overshot, PDD (optional) (required for Running Method No. 4) (PIN, 1-1/4-8 mod.Acme) Sub, Reed type PAA (pin, 1-1/4-8; box, 1-8), used with overshot PAA PN 136100 (required for Running Method No. 4) See "Subs" on page 84 for a complete list. Sinker Weight, 1-5/8 x 20 in. (optional with a maximum of three) Sinker Weight, 1-5/16x18 in. (optional with a maximum of three) See "Sinker Weight Unit" on page 77 for details.
Qty
Use on Code 1 1 1 1 1 1 1
D C, G D C, G D C, G D
1
B, H
1
E, F
1 AR
F
AR
F
AR
F
AR
F
AR
A, D
AR
C, G
**Must be ordered to correspond with the same degree as used with the double recorder assembly, Item 1.
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Document number Revision Page
26-26-MAN D 66 of 88
5: Parts List
Operating Unit Tools
25
26
24
27
28
29
30
33
34
31
Figure 5.2: Operating Unit Tools
88 www.nov.com
Document number Revision Page
5: Parts List
26-26-MAN D 67 of 88
Operating Units Tool Parts Item No
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Part No.
Description
Qty
Use on Code
24
218267-001
24
218267-002
24
218267-003
24
218267-004
24
218267-005
24
218267-006
24
218267-007
24
218267-008
24
218267-009
24
218267-010
25 26
191252 191407
Sinker Weight Unit A, 1-5/8 in. (optional) (required for Running Method No. 5) See "Sinker Weight Unit" on page 77 for details. Sinker Weight Unit A, 1-5/8 in. (optional) (required for Running Method No. 5) See "Sinker Weight Unit" on page 77 for details. Sinker Weight Unit B-PAA,1-5/16 in. OD (optional, required for Running Method No. 2) See "Sinker Weight Unit" on page 77 for details. Sinker Weight Unit B-PCC, 1-5/8 in. OD (optional, required for Running Method No. 2) See "Sinker Weight Unit" on page 77 for details. Sinker Weight Unit to run 1-5/8 in. Go-Devil with PDD overshot on Sand Line. Sinker Weight Unit to run 1-5/8 in. G-Devil In and Out of Drillpipe on Measuring Line. Sinker Weight Unit to run 1-5/16 in. Go-Devil in and Out of Drillpipe on Measuring Line. Sinker Weight Unit to recover 1-5/16 in. Go-Devil with PAA Overshot on Measuring Line. Sinker Weight Unit to recover 1-5/8 in. Go-Devil with PCC Overshot on Measuring Line. Sinker Weight Unit 1-5/8 in. Go-Devil with PDD Overshot on Measuring Line. Tool Assembly, Chart Reader Assembly, Chart
27
191514**
Chart in Envelope, 0 to 1-1/2° (100 ct)
AR
27
191513**
Chart in Envelope, 1 to 3° (100 ct)
AR
27
191510**
Chart in Envelope,0 to 7° (100 ct)
AR
27
191410**
Chart in Envelope, 0 to 8° (100 ct)
AR
27
191511**
Chart in Envelope, 0 to 14° (100 ct)
AR
27
191411**
Chart in Envelope, 0 TO 16° (100 ct)
AR
27
191512**
Chart in Envelope, 0 TO 21° (100 ct)
AR
27
191412**
Chart in Envelope, 0 TO 24° (100 ct)
AR
27
191419**
Chart in Envelope, 0 TO 90° (100 ct)
AR
27
191515
Chart in Envelope, 0 TO 7°, Hot Well (100 ct)
AR
27
1911516
Chart in Envelope, 0 TO 14°, Hot Well (100 ct)
AR
AR
E, F
AR
B, H
AR
B, H
AR
E, F
AR AR AR AR AR AR 1 1 A, B, C, D, E, F, I A, B, C, D, E, F, I B, C, D, F, G, H, I A, E B, C, D, F, G, H, I A, E B, C, D, F, G, H, I A, E A, B, C, D, E, F, I B, C, D, F, G, H, I B, C, D, F, G, H, I
Document number Revision Page
26-26-MAN D 68 of 88
5: Parts List
Operating Units Tool Parts (Continued) Item No
Part No.
Description
Qty
27
191517**
Chart in Envelope, 0 to 21°, Hot Well (100 ct)
28
40124220
28
40124230
28 29
40124220 40125404
Finger, Stabilizer, 3-1/2 in. (replacements) Finger, Stabilizer, 5-1/4 in. (replacements) (optional for PN 124220) Finger, Stabilizer, 3-1/2 in. (replacements) Seal, Packer, 1-1/4 in. OD
29
40115414
Seal, Packer, 1 in. OD
2
30
191610
30
192310
31
191630
Wrench, Open End, 1-3/8 in.
2
30 32 33 34
191620 191000 191200-101 191210-101
Wrench, Open End, 1-1/8 in. Box Assembly, Equipment and Instrument Box Assembly, Equipment Box Assembly, Instrument
2 1 1 1
Packer Tool Assembly, Sealing (for 1-5/8 x 1-1/4 in. GoDevil) Packer Tool Assembly, Sealing (for 1-5/16 x or 1-5/8 x1 Go-Devil)
Use on Code
9
B, C, D, F, G, H, I E, F
9
A, E, J
18 2
E, F A, E, J B, C, D, F, G, H, I, K
AR
1 1
A, E, K B, C, D, G, H, I, K A, D, E, F, J, K B, C, G, H, I
** Must be ordered to correspond with the same degrees as used with the double recorder assembly, item 1.
88 www.nov.com
Document number Revision Page
5: Parts List
26-26-MAN D 69 of 88
Operating Unit Maintenance Tools and Baffles 37
35
TOTCO
38
35
TWO EXPANSION ARMS REMOVED FOR CLARITY
Figure 5.3: Operating Unit Maintenance Tools and Baffles
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Document number Revision Page
26-26-MAN D 70 of 88
5: Parts List
Operating Unit Maintenance Tools and Baffle Parts Item No
Part No
Description
Qty
35
190000
35
190100
35
190200
36
124400
37
123120-101
38
191700
39
191600
40*
191601
41*
199525-xxx
Maintenance Unit, 1-5/8 X 1-1/4 in. Maintenance Unit, 1-5/16 X 1 in. Go-Devil (See "Maintenance Unit" on page 79 for details.) Maintenance Unit, 1-5/8 x 1 in. Centralizer, Retrievable (See "Retrievable Centralizer" on page 81 for details.) Swivel Assembly, Sand line (for 1-5/8 in. Go-Devil) (See item no. 2 in "Sinker Weight Unit" on page 77 for details.) Baffle Plates, List of (See "Baffle Plates" on page 82 for details.) Subs (See "Subs" on page 84 for a complete list.) Connection, Upper core barrel listing of (See "Upper Core Barrel Connections" on page 86 for details.) Angle Test Kit (See "Angle Test Kit" on page 88 for details.)
Use on codes
1
A, E, J
1
B, C, G, H, I
1
D, F, K
2
J, K
1
J, K
NP
A, B, C, D, E, F, G, H, I
NP NP NP
88 www.nov.com
Document number Revision Page
5: Parts List
26-26-MAN D 71 of 88
Go-Devil Assembly 8
3
10 9 7 5
8 5
4 13 12 11 9
4 14
7 2
2
1 1
Figure 5.4: Go-Devil Assembly
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Document number Revision Page
26-26-MAN D 72 of 88
5: Parts List
Go Devil Assembly Parts Item No Part No 120000 110000 170000 1
40127000
1
40117000
1
177100
3 3 5 5 5 6 7 8 9 10 11 12 13 14
40125200 115200 125100-101 115100 175100 172300 175200 172310 40124220 172330 999304-008 172331 999304-004 177120
Description
Qty
Go-Devil Assembly,1-5/8 in. ID (Refer to item 2, page 62 for NHA.) Go-Devil Assembly, 1-5/16 in. OD x 1 in. ID (Refer to item 2, page 62 for NHA.) Go-Devil Main Assembly, 1-3/8 in. OD x 1 in. ID (for gas and /or air drilling) (Refer to item 2, page 62 for NHA.) Spear Point Assembly, 1-5/8 in. (See page 73 for details.) Spear Point Assembly, 1-5/16 in. (See page 74 for details.) Spear Point Assembly, 1-3/8 in. (See page 74 for details.) Plug, Upper container (for 1-5/8 x 1-1/4 in. Go-Devil) Plug, Upper container (for 1-5/16 x 1 in. Go-Devil) Body Assembly, 1-5/8 x 1-1/4 in. Go-Devil Body Assembly, 1-5/16x1 in. Go-Devil Body Assembly, 1-3/8 x 1 in. air-gas Go-Devil Finger Stabilizer Assembly, Upper retrievable Plug, Upper Go-Devil Body, Wire Socket Finger, Rubber Stabilizer Body Assembly, Stabilizer Pin, Spring, 3/16 X 3/4 in. Shaft, Measuring Line Socket Pin, Spring, 3/16 X 1/2 in. Body, Stabilizer, Rubber Finger
Use on Codes
REF
A
REF
B
REF
E
1
A,C
1
B,D
1
E
1 1 1 1 1 1 1 1 3 1 1 1 1 1
A B,D A B E E E E E E E E E E
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Document number Revision Page
5: Parts List
26-26-MAN D 73 of 88
1-5/8 in. Spear Point Assembly 6
5
4
3
2
1
Figure 5.5: 1-5/8 in. Spear Point Assembly
Spear Point Assembly,1-5/8 in. Parts Item No
Part No 127000
1 2 3 4 5 6
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40127001 983106-242 129150 40127003 40127005 40129120
Description Spear Point Assembly, 1-5/8 in. (See item 1, "Go-Devil Assembly" on page 71 for NHA.) Head, Spear point, 1-5/8 in. Spring, Helical, 1 in. OD x 3 in. Keeper, Spear point Sleeve, Upper, Spear point Shaft, 1-5/8 in. Spring, Upper, Spear point Shaft, 1-5/8 in. Shaft, Spear point, 1-5/8 in.
Qty
Use on Codes
REF 1 1 1 1 1 1
Document number Revision Page
26-26-MAN D 74 of 88
5: Parts List
1-5/16 and 1-3/8 in. Spear Point Assembly 7
6 9
8
5
4 1 3
2
1 Figure 5.6: 1-5/16 and 1-3/8 in. Spear Point Assembly
1-5/16 and 1-3/8 in. Spear Point Assembly Parts Item No
Part No 40117000 177100
1 1 2 3 4 5 6 7 8 9
40117001 177170 983106-230 40117007 40118150 117003 40117005 40118120 40124220 177120
Descriptions
Qty
Spear Point Assembly, 1-5/16 in. (See item 1, "GoDevil Assembly" on page 71 for NHA.) Spear Point Assembly, 1-3/8 in. (See item 1, "Go-Devil Assembly" on page 71 for NHA.) Head, Spear point, 1-5/16 in. Head, Spear point, air and gas Go-Devil 1-3/8 in. OD Spring, Helical, 3/4 OD x 3/8 ID in. Guide, Spring Shaft, Spear point Sleeve, Spear point Spring, Upper, Spear point Shaft, 1-5/16 in. Body, Spear point Shaft Finger, Rubber Body, Rubber Finger Stabilizer
Use on Codes
REF
A B
1 1 1 1 1 1 1 3 1
A B A A A A A A B B
88 www.nov.com
5: Parts List
Document number Revision Page
Shock Absorber Assembly 4 3 8
2
9
1
10 Figure 5.7: Shock Absorber Assembly
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7 6 5
26-26-MAN D 75 of 88
Document number Revision Page
26-26-MAN D 76 of 88
5: Parts List
Shock Absorber Assembly Parts Item No Part No 220820-002 220820-001 1 2 2 3 3 4 4 5 6 7 8 9 10
220822-001 40125403 115413-301 40125404 40115414 40125405 40115415 999310-014 999352-002 999280-004 999277-012 999340-012 220821
Descriptions
Qty
Shock Absorber Assembly, 1-1/4 in. (See item 4, "GoDevil Assembly" on page 71 for NHA.) Shock Absorber Assembly, 1 in. (See item 4, "Go-Devil Assembly" on page 71 for NHA.) Shock Absorber, Elastic, Molded Body, Packer,1.25 in. Body, Packer, 1.00 in. Seal, Packer,1.25 in. Seal, Packer, 1.00 in. Gland, Packer,1.25 in. Gland, Packer, 1.00 in. Washer, Flat,.350 X.69 X.06, SST Nut, 5/16-24, Hex, SST Nut, Self-locking, #10-32, Thin, Hex, SST Pin, Spring,.25 X 1.12, SST Pin, Roll,.156 X 1.00, SST Adapter, #12 Elastic Shock
Use on Codes
REF
A
REF
B
1 1 1 1 1 1 1 1 1 1 1 1 1
A, B A B A B A B A, B A, B A, B A, B A, B B
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Document number Revision Page
5: Parts List
26-26-MAN D 77 of 88
Sinker Weight Unit 5
4 3
7
6 1
2
Figure 5.8: Sinker Weight Unit
Sinker Weight Unit Parts Item No
Part No
218267-001
218267-002
218267-003
218267-004 218267-005 218267-006 218267-007 218267-008 218267-009 218267-010 1 1 2 2 3 3 4 4
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122700 40112702 136200-101 136100-101 40127007 114500-101 123120-101 40113131
Description Sinker Weight Unit A, 1-5/8 in. (optional) (required for Running Method No. 5) See "Sinker Weight Unit" on page 77 for details. Sinker Weight Unit A, 1-5/8 in. (optional) (required for Running Method No. 5) See "Sinker Weight Unit" on page 77 for details. Sinker Weight Unit B-PAA,1-5/16 in. OD (optional, required for Running Method No. 2) See "Sinker Weight Unit" on page 77 for details. Sinker Weight Unit B-PCC, 1-5/8 in. OD (optional) (required for Running Method No. 2) See "Sinker Weight Unit" on page 77. Sinker Weight Unit to run 1-5/8 in. Go-Devil with PDD overshot on Sand Line. Sinker Weight Unit to run 1-5/8 in. G-Devil In and Out of Drillpipe on Measuring Line. Sinker Weight Unit to run 1-5/16 in. Go-Devil in and Out of Drillpipe on Measuring Line. Sinker Weight Unit to recover 1-5/16 in. Go-Devil with PAA Overshot on Measuring Line. Sinker Weight Unit to recover 1-5/8 in. Go-Devil with PCC Overshot on Measuring Line. Sinker Weight Unit 1-5/8 in. Go-Devil with PDD Overshot on Measuring Line. Sub, DBL BX, M/D Totco 1.25 in. Sub, DBL BX, M/D Totco 1 in.-8 Overshot, PCC Overshot, PAA Finger Stabilizer Assembly, 1.62 in./3 Stabilizer Assembly, 1.31 in./ Swivel Assembly, 1.62 in. Sandline Swivel Assembly, 1.31 in. Sandline
Qty
Use on Codes
AR
A
AR
B
AR
C
AR
D
AR
E
AR
F
AR
G
AR
H
AR
I
AR
J
1 1 1 1 1 1 1 1
F, I, J H D, I, E, J C, H A, F B, G A B
Document number Revision Page
26-26-MAN D 78 of 88
5: Parts List
Sinker Weight Unit Parts (Continued) Item No
Part No
Description
Qty
5 5 6 6 6 7
40123130 40113130 40112211 40122206 40122216 40113110
Socket, 1.62 in. Sandline Rope Socket, 1.31 in. Sandline Rope Conn, Reed "A" Core BBL w/ Swivel Conn, Upper Core BBL w/ Swivel Socket Conn, Upper Core BBL w/ Swivel Socket Sinker Weight, 1.31 in. x 72 in.
1 1 1 1 1 2
7
40123110
Sinker Weight, 1.62 in. x 72 in.
2
Use on Codes A, D, E B, C G, H F, I, J F B, C, G, H A, D, E, F, I, J
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Document number Revision Page
5: Parts List
26-26-MAN D 79 of 88
Maintenance Unit 2
3
4
5
1
8
7
9
Figure 5.9: Maintenance Unit
Maintenance Unit Parts Item No
Part No
190000
190100
190200
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1
191800
2
191820
2
191810
3 3 4
192810 192820 192830
4
192840
5
192850
5
192860
6
192200
Description Maintenance Unit, 1-5/8 x 1-1/4 in. Go-Devil (See item 35, "Operating Unit Maintenance Tools and Baffles" on page 69 for NHA.) Maintenance Unit, 1-5/16 x 1 in. Go-Devil (See item 35, "Operating Unit Maintenance Tools and Baffles" on page 69 for NHA.) Maintenance Unit, 1-5/8 x 1 in. Go-Devil (See item 35, "Operating Unit Maintenance Tools and Baffles" on page 69 for NHA.) Brush, Instrument Cleaning, Flat Brush, Instrument Thread Cleaner, round, 1-5/8 x 6-1/2 in., Brass Brush, Instrument Thread Cleaner, Round, 1-5/16 x 6-1/2, Brass Brush, Go-Devil Thread, Round, 1-5/8 X 8 in., Steel Brush, Go-Devil Thread, Round, 1-5/16 X 8 in., Steel Brush,1-5/8 Go-Devil, Round Brush, 1-5/16 Go-Devil, Round, 1-1/32 x 7-1/2 in. with 1/4 NPT Handle Brush, 1-5/8 Go-Devil, Round, 1-19/64 x 8 in., Steel (for Go-Devil Accessories) Brush, 1-5/16 Go-Devil, Round, 1-1/32 x 8 in., Steel (for Go-Devil Accessories) Rod Assembly, Cleaning, 1-1/4 in. ID
Qty
Use on Codes
REF
A
REF
B
REF
C
1 1
A
1
B, C
1 1 1
A B, C A
1
B, C
1
A, C
1
B
1
A
Document number Revision Page
26-26-MAN D 80 of 88
5: Parts List
Maintenance Unit Parts (Continued) Item No 6 7 7 8 9
Part No
Description
Qty
192400 192220 192420 192201 192100-101
Rod Assembly, Cleaning, 1 in. ID Handle, Cleaning Rod Handle, Cleaning Rod Rod Weld Assembly, Cleaning Box, Go-Devil Equipment
Use on Codes 1 1 1 1 1
C A B, C
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Document number Revision Page
5: Parts List
26-26-MAN D 81 of 88
Retrievable Centralizer 7
14
8
VIEW A-A 10
9 18 16 15 VIEW B-B
VIEW C-C
C 11 A 13 20
17
A
12
B
TWO EXPANSION ARMS REMOVED FOR CLARITY
19 B
C
Figure 5.10: Retrievable Centralizer
Retrievable Centralizer Parts Item No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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Part No
Description
124400 999258-055 999310-019 40124405 999209-002 124427 999310-013 999258-055 99310-019 999209-002 40124404 124402 124403 40124509 999258-055 40124407 124426 124425 124401 40124508 124406
Retrievable Centralizer Assembly (See 30, Figure 3.4 for NHA.) Pin, Cotter, 1/8 x 1, SST (AP) Washer, Flat, 1/2 x 1-1/4, SST (AP) Pin, Lever wheel (AP) Fitting, Grease, 1/4 NPT (AP) Wheel Washer, Flat, 15/32 x 15/16 (AP) Pin, Cotter, 1/8 x 1, SST (AP) Washer, Flat, 1/2 x 1-1/4, SST (AP) Fitting, Grease, 1/4 NPT (AP) Pin, Lever SUPPORT (AP) Lever Lever Pin End Pin, Cotter, 1/8 x 1, SST (AP) Pin, Bushing Bushing, Spring Spring Support, Lever Box End Shaft
Qty Ref 3 3 3 3 6 6 3 6 3 3 3 3 1 4 4 4 2 2 1 1
Document number Revision Page
26-26-MAN D 82 of 88
5: Parts List
Baffle Plates A
A
B
B
TOTCO C SPIDER S (STRAIGHT)
C RING S (STRAIGHT)
SPIDER B (BEVELED)
RING B (BEVELED)
Figure 5.11: Baffle Plates
Baffles Plate Parts Item No
Part No
Description
Qty
5-9
191700
Baffle Plates, List of (See item 38 on page 69 for NHA)
NP
(See "Operating Units" on page 62)
Baffle Plates For Use On Bit Part No 191701 191702 191703 191704 191705 191706 191707 191708
Size 2-7/8 in. API Regular 3-1/2 in. API Regular 4-1/2 in API Regular 5-9/16 in. API Regulator 6-5/8 in. API Regular 7-5/8 in. API Regular 8-5/8 in. API Regular API No. 70 Drico Bore Black Box Relief
Type
A Hole DIA.
B C Overall Height O.D.
Spider
15/16
1-1/16
1-15/16
Ring
3/4
3/4
2-9/32
Ring
1-1/8
1-1/4
3-7/32
Ring
1-1/4
1-1/4
3-15/16
Ring
1-1/4
1-1/2
4-5/8
Ring
1-1/8
1-1/2
5-5/16
Ring
1-1/8
1-1/2
6-7/32
Ring
1-1/8
1-1/2
5-29/32
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Document number Revision Page
5: Parts List
26-26-MAN D 83 of 88
Baffle Plates For Use In Tool Joints Part No
Size
Type
A B Hole Dia. Overall Height
C O.C.
191711 191712 191713 191714 191740 191741 191742 191743 191744
3½ in. API Full Hole 4½ in. API Full Hole 5-9/16 in. API Full Hole 6-5/8 in. API Full Hole 2-7/8 in. API Internal Flush 3½ in. API Internal Flush 4½ in. API Internal Flush 2-7/8 in. API Internal Flush 4 in. API Internal Flush
Spider Ring Ring Ring Spider Ring Ring Spider Ring
1 1-1/8 1-1/4 1-1/4 1 1-1/8 1-1/4 1 1-1/4
2-3/4 3-3/8191713 4-5/8 5-3/8 2-11/32 3-5/64 4-7/32 2½ 3-7/8
1 1-1/4 1-3/8 1-5/8 1-1/16 1-1/4 1-1/2 7/8 1-1/4
Baker Drillpipe Floats Baffle Plates-Spider Type Only
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Part No
Size
Baker Float Size
A Hole Dia.
B C Overall Height OD.
191721
3S
1
1-1/4
2-5/8
191722
4S
15/16
1-5/32
3-7/16
919723
5S
1-1/4
1-5/16
4-11/16
191724 191725
6S 3½S
3½ in. API Full Hole 4½ in. API Full Hole; 4½ in. API Regular; 5-9/16 in. API Regular 5-9/16 in. API Full Hole; 6-5/8 in. API Regular Hole 6-5/8 in. API Full Hole 3½S in. API Internal Flush
1-1/4 1-5/16
1-1/2 1-5/32
5-9/16 3-1/16
Document number Revision Page
26-26-MAN D 84 of 88
5: Parts List
Subs
1
2
3
Figure 5.12: Subs
Sub Parts Item No
Part No 191600
1
40112700
1
40112702
1
122700
1
122701
1
40122702
1
40124508
1
40185600
2
111900
2
111910
2
40112180
2
122091
2
122100
2
40122110
Description
Qty
Subs, List of (See item 39, "Operating Unit Maintenance Tools and Baffles" on page 69 for NHA.) Sub, Double Box End, 1-8 UNC-2B, Reed PAA: 1-8 Modified ACME (for 1-5/16 OD Go-Devil) SUB, Double Box End, 1-8 Modified ACME Both Ends (for 1-5/16 OD Go-Devil SUB, Double Box End, 1-1/4-8 Modified ACME Both Ends (for 1-5/8 OD Go-Devil) SUB, Double Box End, 1-8 Modified ACME; 1-1/4-8 Modified ACME (for 1-5/8 OD Go-Devil) SUB, Double Box End, 1-1/16-10 SUB, Double Box End, 1-14-8 Modified ACME; 1¼-12 UNF-2B (for 1-5/8 OD Go-Devil) Sub, Double Box End, 1¼-8 Modified ACME; 1¼-8 Modified UN-2B (Reed PCC and PDD) (for 1-5/8 OD Go-Devil) Sub, Double Pin End, 1-1/16-10 NS-2A (API Straight Sucker Rod); 1-8 Modified ACME (for 1-5/16 OD Go-Devil) Sub, Double Pin End, 1-8 Modified ACME Both Ends (for 1-5/16 OD Go-Devil) Sub, Double Pin End, 1-8 UNC-2A; 1-8 Modified ACME (for 1-5/16 OD Go-Devil) Sub, Double Pin End, 1¼-10, Hunt 1¼ Taper / ft; 1¼-8 Modified ACME (for 1-5/8 OD Go-Devil) Sub, Double Pin End, 1-1/16-10 UNS-2A, API Straight; 1¼-8 Modified ACME (for 1-5/8 OD Go-Devil) Sub, Double Pin End, 1¼-8 UN-2A,Reed PCC Straight; 1¼-8 Modified ACME (for 1-5/8 OD Go-Devil)
NP AR AR AR AR AR AR AR AR AR AR AR AR AR
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Document number Revision Page
5: Parts List
26-26-MAN D 85 of 88
Sub Parts (Continued) Item No
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Part No
2
40122113
2
40122113
3
40122120
2
40122130
3
40112800
3
40117200
3
40122111
3
40122112
3
122800
3
40122801
3
40122802
3
40122803
3
40124509
3
127200
3
127201
3
127202
3
127203
Description Sub, Double Pin End, 1¼-8 Modified Acme Both Ends (for 1-5/8 OD Go-Devil) Sub, Double Pin End, 1¼-8 Modified Acme Both Ends (for 1-5/8 OD Go-Devil) Sub, Double Pin End, 1-8 UNC-2A, Reed PAA Straight; 1¼-8 Modified Acme (for 1-5/8 OD Go-Devil) Sub, Double Pin End, 1¼-8 Modified Acme Both Ends (for 1-5/8 OD Go-Devil) Sub, Pin to Box End, 1-8 UNC-2A, Reed PAA Pin End; 1-8 Modified Acme Box End (for 1-5/16 OD Go-Devil) Sub, Pin to Box End, 1-8 Modified Acme Pin; 1-8 UNC-2B, Reed PAA Straight (for 1-5/16 OD Go-Devil) Sub, Pin to Box End, 1-1/4-8 Modified Acme Pin; 1-8 Modified Acme Box (for 1-5/8 OD Go-Devil) Sub, Pin to Box End, 1-1/4-8 Modified Acme Pin; 1-8 Modified Acme Box (for 1-5/8 OD Go-Devil) Sub, Pin to Box End, 1-1/4-8 UN-2A Reed PCC Straight Pin; 1¼-8 Modified Acme Box (for 1-5/8 OD Go-Devil) Sub, Pin to Box End, 1-1/4-10,Hunt 1¼ Taper / ft Pin; 1¼-8 Modified Acme Box (for 1-5/8 OD Go-Devil) Sub, Pin to Box End,1-1/16-10 UNS-2A, API Straight; 1-1/4-8 Modified Acme (for 1-5/8 OD Go-Devil) Sub, Pin to Box End 1-8 Modified Acme Pin; 1-1/4-8 Modified Acme Box (for 1-5/8 OD Go-Devil) Sub, Pin to Box End, 1-1/4-8 Modified Acme Pin; 1¼-12UNF-2B Box (for 1-5/8 OD Go-Devil) Sub, Pin to Box End, 1-1/4-8 Modified Acme Pin; 1-8 NC-3, Reed PAA Straight, Box (for 1-5/8 OD Go-Devil) Sub, Pin to Box End, 1-14-8 Modified Acme Pin; 1-21/32-12 UNS-2, A1 Size 2, Box, 2¼ OD (for 1-5/8 OD Go-Devil) Sub, Pin to Box End, 1¼-8 Modified Acme Pin; 1-1/16-10 UNS-2B, API, Box (for 1-5/8 OD Go-Devil) Sub, Pin to Box End, 1¼-8 Modified Acme Pin; 1-3/8-12 UNF-3B, A1 size 00, Box (1-7/8 OD for 1-5/8 Go-Devil)
Qty AR AR AR AR AR AR AR AR AR AR AR AR AR AR AR AR AR
Document number Revision Page
26-26-MAN D 86 of 88
5: Parts List
Upper Core Barrel Connections
6 1 2
4 5
3 Figure 5.13: Upper Core Barrel Connections
Upper Core Barrel Connection Parts Item No
Part No 191601
1
40112200
1
40112201
1
112202
1
112203
1
112204
1
122200
1
122210
2
40112211
2
40122206
2
40122216
3 3 4 4
112320 40122311 999304-005 999277-005
Description
Qty
Connection, Upper Core Barrel, Listing of (See 88, Figure 5.13 for NHA.) Connection, Upper Core Barrel, Reed Type A, 1½ in. OD (for 1-5/16 in. Go-Devil) Connection, Upper Core Barrel, Smith Type A, 1-5/8 OD (for 1-5/8 in. Go-Devil) Connection, Upper Core Barrel, Hunt Type, 1-7/8 OD (for 1-5/8 in. Go-Devil) Connection, Upper Core Barrel, A-1 Bit, Type O (for 1-5/8 in. Go-Devil) Connection, Upper Core Barrel, A-1 Bit, Type OO and 2 (for 1-5/8 in. Go-Devil) Connection, Upper Core Barrel, Reed Type C and D (for 1-5/8 in. Go-Devil) Connection, Upper Core Barrel, Reed Type A, 1-5/8 OD (for 1-5/8 in. Go-Devil) Connection, Upper Core Barrel, Reed Type A, with Swivel Socket (for 1-5/16 in. Go-Devil) Connection, Upper Core Barrel, Reed Type C and D with Swivel Socket (for 1-5/8 in. Go-Devil) Connection, Upper Core Barrel, Reed Type A, with Swivel Socket (for 1-5/8 in. Go-Devil) Bushing Bushing PIN, Spring, 3/16 x 9/16 PIN, Spring, 1/4 x 5/8
Use on Code
REF AR
A
AR
B
AR
C
AR
D
AR
E
AR
F
AR
G
AR
H
AR
I
AR
J
1 1 1 1
H I, J H I, J
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Document number Revision Page
5: Parts List
26-26-MAN D 87 of 88
Upper Core Barrel Connection Parts (Continued) Item No 5 5 6 6 6
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Part No
Description
112330 40122312 40112210 122205 40122215
Shaft Shaft Body, Wireline Swivel Body, Wireline Swivel Body, Wireline Swivel
Qty 1 1 1 1 1
Use on Code H I, J A, H B, I C, J
Document number Revision Page
26-26-MAN D 88 of 88
5: Parts List
Angle Test Kit
4
1
3
Figure 5.14: Angle Test Kit
Angle Test Kit Parts Item No
Part No
Description
199525
Angle Test Kit (See 90, Figure 5.14 for NHA.) Angle Test Kit (for 1-1/4 in. OD Recorder, 8, 16,24, and 90°) Angle Test Kit (for 1 in. OD Recorder, 7,14,21, and 90° Angle Test Kit (for 1-1/4 in. OD Recorder, 3° Angle Test Kit (for 1 in. OD Recorder, 3° Angle Test Kit (for 1-1/4 in. OD Recorder, 1-1/2° Angle Test Kit (for 1 in. OD Recorder 1-1/2° Box Assembly Test Stand Assembly Holding Tube Assembly (8, 16, 24, and 90°) Holding Tube Assembly (7, 14, 21, and 90°) Holding Tube Assembly (3°) Holding Tube Assembly (3°) Holding Tube Assembly (1-1/2°) Holding Tube Assembly (1-1/2°)
199525-101 199525-102
-1 -2 -3 -3 -3 -3 -3 -3
199525-103 199525-104 199525-105 199525-106 199550-101 199500-101 199580-102 199580-105 199580-103 199580-106 199580-101 199580-104
Qty
Use on Code
REF 1
A
1
B
1 1 1 1 1 1 1 1 1 1 1 1
C D E F A A B C D E F
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