29 0 357KB
MOCK TEST PAPER
COMPLETION EQUIPMENTS Time: 30 minutes
1. Given the drawing above, match the correct numbers to their descriptions. LMV
FWV
UMV
KWV
SSV
Cross
Tree cap
Swab valve
Adaptor flange
Choke
2. Which of the following statements about X-mas tree valves are true?(2 answers) a. After closing, a manual valve should be backed out by part of a turn b. The valve must be closed as tightly as possible c. All valves take 30 turns to open or close d. The indicator shows how many turns have been made e. Counting the turns as the valve is opened or closed can show any obstructions in front of the valve 3. Which of the following statements about X-mas trees is true? a. Any swab valve can be used to cut slickline b. Some master valves can be used to cut slickline c. Any flow wing valve can be used to cut slickline d. Any kill wing valve can be used to cut slickline 4. Which of the following statements about tubing hangers are true?(3 answers) a. A plug can usually be set inside the hanger body b. It supports the weight of the production casing and completion c. It supports the weight of the top of completion d. It allows communication from inside the completion to the completion annulus through the control line port(s) e. It allows communication into the completion annulus through the control line port(s) f. It isolates the completion from the completion annulus g. It can be closed by applying pressure to the control line 5. What is the primary purpose of a packer? a. To support the tubing b. To anchor the tubing c. To isolate the completion annulus d. To hold the completion fluid in the annulus
6. How does a packer create the annulus / tubing seal? a. By sealing off the tubing in the packer bore b. By isolating the annulus above the packer from the casing below the packer and the tubing c. By being located in a tieback receptacle d. By hydraulic control from surface 7. Name the two basic types of packer (2 answers)? a. Bridge plug b. Permanent c. Pump Through d. Retrievable e. Check valve 8. Where is a production packer normally positioned in a well? a. Close to the tubing hanger b. Half way between the tubing hanger and the perforations c. Above the top of perforations d. Below the bottom of perforations 9. Which of the following is true about a retrievable packer? a. Can be retrieved by milling b. Can only be retrieved with the completion tubing c. Can be set and retrieved by wireline d. Is fixed to the completion tubing e. Can only be retrieved with a special pulling tool 10. Which of the following is true about a permanent packer? a. Can be retrieved by milling b. Can only be retrieved with the completion tubing c. Can be set and retrieved by wireline d. Is fixed to the completion tubing e. Can only be retrieved with a special pulling tool 11. What is the primary purpose of a sliding sleeve? a. To close off the tubing bore b. To close off the annulus c. To provide communication between the tubing and annulus 12. Where is the sliding sleeve normally positioned? a. Immediately above the packer b. Immediately below the packer c. Between the two packers 13. Which of the following statements are true (2 answers)? a. Check that the pressure rating of the SSD is correct b. Check that the SSD is fully open before starting circulation c. Check that the tail pipe is plugged before opening the SSD d. Check that the pressures are equalised across the SSD before opening e. Check that the catcher is in place below the SSD before opening
14. How can circulation be established if the SSD is stuck in the closed position? a. Unseat the packer b. Connect the annulus and tubing at surface c. Punch a hole in the tubing d. Pull the DHSV from its nipple 15. Which of the following are true? (2 answers) a. The SPM plugs the tubing b. The SPM is the receptacle for the DHSV c. The SPM is the receptacle for gas lift valves d. The SPM is the receptacle for downhole plugs e. The SPM can provide a means of communication between annulus and tubing 16. What stops wellbore fluids entering the annulus through a gas lift valve in an SPM? a. Differential Pressure b. A check valve in the gas lift valve c. The venture effect across the port of the gas lift valve 17. If a SPM is not in use as a circulating device, what type of valve is installed in the side pocket as a positive closure from either direction? a. A gas lift valve b. A gate valve c. A dummy valve d. A chemical injection valve e. A circulating valve 18. Why is a DHSV used? a. To close in the well to allow maintenance on the tree b. To close in the well to shut in production c. To control production rates d. To prevent production in case the surface valves are opened too far e. To close in the well in an emergency 19. Why is an annulus safety valve installed? a. In place of the tubing safety valve b. To prevent flow from the annulus in gas lift wells c. To close off flow onto the annulus in gas lift wells 20. What is the primary reason that determines the setting depth of the DHSV? a. To prevent deliberate sabotage b. Is set as high as possible to reduce the inventory of wellbore fluids that might escape c. Is set below the depth where it can be damaged by surface impact or explosion d. Is set below the crater depth from a blow out around the casing e. Is set as close to the packer as possible f. To prevent penetration of drilling tools from an adjacent well
21. From which direction does a DHSV prevent flow? a. Above b. Below c. Above and Below 22. What is the main reason for using tubing nipples? a. To receive flow control devices b. To reduce well flow c. For wireline depth control 23. How are lock mandrels locked into nipples? a. With slips b. On No-Go shoulders c. With mandrel locking dogs in matching profiles d. With expanding rubber elements in the bore e. With elastomeric packings in the bore f. By metal to metal seals 24. How do flow control devices seal within the nipple bore? a. With slips b. On No-Go shoulders c. With locking dogs in matching profiles d. With expanding rubber elements in the bore e. With elastomeric packings in the bore f. By metal to metal seals 25. What is the primary purpose of No-Go shoulders in nipples? a. To locate the correct lock mandrel b. To prevent the tools falling out of the bottom of the tubing c. To bear the load from the differential pressure across the plug d. To lock the mandrel into the nipple 26. Do DHSV’s prevent flow in both directions? a. Yes b. No 27. Which are the common types of DHSV?(2 answers) a. Coiled Tubing retrievable b. Wireline retrievable c. Tubing retrievable d. Permanent e. Temporary 28. What type of closure mechanism is fitted to surface controlled wireline retrievable DHSV’s?(2 answers) a. Poppet b. Flapper c. Plug d. Ball e. Sleeve f. Gate
29. Which of the following DHSV’s are surface controlled?(2 answers) a. Differential pressure b. Ambient pressure c. Wireline retrievable d. Tubing retrievable e. Ball f. Flapper g. Automatic 30. What type of closure mechanism is fitted to tubing retreivalbe DHSV’s? (2 answers) a. Poppet b. Flapper c. Plug d. Ball e. Sleeve f. Gate 31. Which of the following DHSV’s are sub-surface controlled?(2 answers) a. Differential pressure b. Ambient pressure h. Wireline retrievable i. Tubing retrievable j. Ball k. Flapper c. Automatic 32. Which DHSV has the largest ID for the same tubing size? a. Wireline retrievable b. Ambient pressure c. Tubing retrievable d. Differential pressure 33. What is the correct action to take to re-instate production in a well with a failed tubing retrievable DHSV? a. Workover the well b. Lock open the DHSV c. Lock open the DHSV and install an insert valve 34. How is a tubing retrievable DHSV run in the open position?(2 answers) a. With pressure on the control line b. By using the lock open mechanism c. With a straddle set across the valve d. By keeping the tubing pressurised 35. What is the main advantage of using wireline retrievable DHSV’s? a. Simple construction b. Can be installed after running the completion c. Can be removed to allow intervention work d. Can be retrieved and replaced
36. What causes a sub-surface controlled DHSV to close? a. Temperature b. Pressure c. Fluid density d. Coiled tubing e. Wireline 37. How is a surface controlled wireline retrievable DHSV run in the open position? a. With locked in hydraulic pressure b. With a lock open sleeve c. With a prong on the wireline running tool d. With an automatic ‘J’ device 38. How is the hydraulic communication achieved in a surface controlled wireline retrievable DHSV? a. Through the hydraulic stab b. Through the open sliding sleeve c. Between the two packing stacks 39. How is a sub-surface controlled DHSV re-opened? a. By allowing ambient temperature to return to normal b. By running the opening tool c. By opening up the well d. By pressurising up above the valve e. By pulling and redressing the valve 40. How is temporary communication normally made between the tubing and annulus?(2 answers) a. Open the SSD b. Punch a hole in the tubing c. Connect the tubing and annulus in the surface d. Install a circulating valve in the SPM 41. How are sub-surface controlled DHSV’s operated?(2 answers) a. By differential pressure b. c. By hydraulic pressure d. By a rise in the temperature of the wellbore fluids e. By a fall in the temperature of the wellbore fluids
ANSWERS Question Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
Answer 9,5,8,4,6,3,1,2,10,7 A&E B A,C&F C B B&D C B A C A B&D C C&E B C E B C B
Question Number 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
Answer A C E A B B&C B&D C&D B&D A&B C C A&C D B C C D A&D A&B