Shear Capacities [PDF]

Zitiervorschau

PROPERTY

DRAWN BY

OF

L.M.

CAMERON

Womble

19

APPROVED

E.G.

SHEARING

DATE

ENGINEERING NO. 702 II PAGE 1 OF 7

91 Bl

DATE

CIiIID.5

CAPABILITIES

AUG

REVISION

19 AUG 91

OF CAMERON

SHEAR

RAMS

TABLE OF CONTENTS

Page GENERAL INFORMATION

2

SHEARING CAPABILITIES: 7-l/16”

U,

UL, UM BOPs

11" U, UL, UM BOPs

3 4

13-S/8”

u BOPS.

5

16-3/4”

U BOPs

6

18-314”

U BOPs

6

20-314”

U BOPs

6

21-114”

U BOPs

6

X3-3/4”

U II

7

18-314”

T BOPs

7

X+3/4”

TL

7

BOPs

BOPS

BULLETIN

PR0PER’i-f

~L.M.

Womble

E.G.

ENGINEERING BULLETIN NO. 702 D PAGE 2 OF 7

~19 AUG,91 Bl

DATE

APPROVED

CAMERON

REVISION

DATE

DRAWN BY

OF

CEIILDS

19

AUG

91 e

GENERAL INFORMATION: The shear.ing capabilities upon the size and working configuration associated At this, Shearing

of Cameron shear rams are dependent pressure of the BOP and the shearing with that BOP.

time Cameron offers two different shear rams, the Blind Ram (DS). Blind Ram,(SBR) and the IDSI Shearing

The following abbreviations shearing configurations:

are

used

to

with

Tandem

B

=

Standard

Bonnets

BT

=

Standard'

Bonnets

Sg

=

Shear

Bonnets

SBT

=

Shear

Bonnets

LB

=

Large

Bore

Shear

Bonnets

LBT

=, '~Large

Bore

Shear

Bonnets

SBR = DS ='

Shearing 'DS'

with

Blind

Tandem

describe

possible

Boosters

Boosters with'Tandem

Boosters.

Rams

Shear.Rams

The shearing capability limited by the available shear ram blade.

for.a.given shearing

configuration force or the

0

can be width of the

The following shearing capabilities are based on actual test results or derived from test 'results. A / mark under a given shearing configuration indicates that shearing configuration is capable of shearing the corresponding pipe at some closing pressure equal to or~less than 2800 psi. A *'PL" mark sunder a given shearing configuration indicates~ that shearing is not possible due to the 2800 psi l~imit on remaining operating pressure available to shear. After a few stack functions, the average remaining operating system pressure is.2800 psi. Cameron's maximum recommended BOP operating pressure is 3000 A "GL" mark under a given shearing configuration psi. indicates that shearing is not possible since the width of the sheared pipe exceeds the width of the shear ,ram blade. For additional information on Cameron shear rams, refer E.B. 538 D,"Shearing Blind Rams - Operation, Care, and Maintenance" or E.B. 700 D "Cameron IDSI Shear Rams Operation,'Care, and Maintenance".

I COT-&%-H

to

e I

_. PROPERTY

DRAWN

OF

L.M.

CAMERON

BY

DATE

Womble

19 AUG 91

APPROVED

E.G.

DATE

CHILDS

19 AUG 91

SHEARING

CAPABILITIES:

/

of shearing at 2800 psi closing pressure

=

capable

REVISION

PL =

incapable

of shearing

due to operating

pressure

limitation

GL =

incapable

of shearing

due ro bore size/ram geomerry fimirarion

I

Bl

ENGINEERING BULLETIN NO.' 702 D PAGE 3 OF 7

PROPEKPTOF CAMERON

DRAWNBY L.M. Womble

DATE

APPROVED

E.G.

CHILDS

capable

of shearing

at 2&O

U

I na

incapable

of shearing

due to operating

CL

incapable

of shearing

due to bore size/ram

pressure

limitation

geometry

11” 1E.M u

I

11” 3-1OM ULIUM I

psi closing pressure

PL = =

ENGINEERING BULLETIN NO. 702 D PAGE 4 OF 7~

19 AUG 91

I

=

Bl

DATE

11” 3-70M

J

REVISION

19 AUG 91

limitation

“S

PROPERTY

L.M. CAMERON

Womble

=

capable of shearing

Bl

DATE

CHILDS

NO.

702

BULLETIN

D

PAGE 5 OF 7

19 AUG 91

c

.J

ENGINEERING

19AUG91

APPRO”ED

E.G.

RE”lSlON

DATE

DRAWN BY

OF

‘1%518- 3-10M I

U’

at 2800 psi closing pressure

PL =

incapable

of shearing

due ta operating

pressure

GL =

incapable

of shearing

due fo bore size/ram

limitation

geometry

limitation

13-S/8”

15M ” 1

PROPERTY

DATE

DRAWN BY

OF

L.M.

CAMERON

Womble

19 AUG 91 Bl

DATE

*PPRoVED E.G. CHILDS

_.

REVlSl~N

19 AUG 91

= G R * L-J

?lPE SIZE

E = 3-l/2”

13.3 #/FT

L t s =

3-112” 15.5 PIFI

I G S =

4-l/2”

16.6 am

E 7 4 S =

6” 18.5 XlFr ,-

E A .S =

5” 25.6 #lFr

25 s =

5-I/2”

24.7 #,”

2 S =

6-518” 25.2

#lFi

t S =

6-518” 27.6 Bin

3 =

S

J=

capable

PL =’

incapable

of shearing

due TO operating

GL =

incapable

of shearing

due to bore size/ram

of shearing

at 2800 psi closing pressure pressure

limitation

geometry

limitation

ENGINEERING BULLETIN 702 D NO. PAGE 6 OF 7

PROPERTY

L.M.

19 AUG 91 DATE

Womble

APPROVED

CAMERON

E.G.

18-314” G R A

L 3-l/2”

D

NO.

702

10M “II

‘18.314” 16M ” II 1

1

88R

SBR

18.3/4” l!SMT&TL

1

18.3,46,lOMTL

SBR

DVS

5 WITH LINER

8 WITHOUT LINER

5

8

E

,

J

,

J

J

G

J

d

J

J

J

G

,

,

J

4

/

S

,

J

J

J

J

G

J

J

,

.f

/

6

J

/

r’

.f

J

G

4

,

/

J

J

3-112” 15.5 #ET

4-112”

16.6 HPT

5” 16.5 #/‘/FT

5” 25.6 #/FT

5-l ,2” 24.7 #/FT

6-5,8”

J

=

25.2 #,F,

capable

of shearing

at 2800 psi closing pressure

PL =

incapable

of shearing

due ro operaring

GL =

incapable

of shearing

due to bore size/ram geometry

D

PAGE 7 OF 7

8

E

13.3 X/FT

ENGINEERING Bl.

19 AUG 91

CHILDS

PIPE SIZE

REVISION

DATE

DRAWN BY

OF

pressure limitation limiration

BULLETIN