Description
Blowout preventers
(BOP) are the most important well control devices and play an important role in
drilling, especially in underbalanced drilling. The purpose of designing a
blowout preventer is to close the wellbore under pressure, maintain continuous
control of the well, and circulate the formation fluid entering the well.
Hydraulic BOP
mainly come in two forms: RAM BOP and ANNULAR BOP.
The ram blowout
preventer mainly consists of a shell, side door, oil cylinder, cylinder head,
piston, piston rod, locking shaft, seal, ram, etc. The working process is to
use hydraulic pressure to push the piston, drive the ram to close or open,
thereby closing or opening the wellhead, achieving the purpose of sealing, and
opening the well.
The ram of a ram BOP can be divided into four types: fully sealed, semi sealed, variable diameter, and shear rams, which are used to achieve well sealing under different conditions. The semi sealed ram can seal the corresponding drill pipe, oil pipe, and other pipe tools. If necessary, the drilling tool can also be suspended. When there are no pipe tools in the well, the fully sealed ram can fully seal the wellhead. In special circumstances, the shear ram can cut off the drilling tool. In addition, the flange outlet on the side of the casing can be used for drilling fluid circulation and throttling and well killing operations.
Features & Benefits
1. Supporting
instruments are symmetrically located around sealing elements, for
strengthening rubber and controlling rubber extrusion movement, so as to
enhance the sealing elements operation stability and prolong the life of the
sealing elements by protection against wear.
2. There is no
metal abrasion between bonnet cone-shaped surface and sealing elements.
3. The inside
cavity of cylinder shall be tested in the maximum working pressure, ensure the
cylinder's strength and safety qualified.
4. Hydraulic pressure
operating cavity with small volume and little volume required can be switched
off swift.
5. The type BOP is
of compact configuration and convenient installation in field.
Technical Parameter
Double Ram BOP
Specification
Bore(in)
Working pressure
Overall Dimension
Weight(Kg)
L(mm)
W(mm)
H(mm)
7-1/16″-3000psi
7-1/16″
3000psi
1400
420
550
780
7-1/16″-5000psi
7-1/16″
5000psi
1400
435
642
865
7-1/16″-10000psi
7-1/16″
10000psi
2054
480
720
696
11"-5000psi
11"
5000psi
3122
833
1230
7050
11"-10000psi
11"
10000psi
3242
900
1044
8300
13-5/8"-5000psi
13-5/8"
5000psi
3588
1495
1285
9640
13-5/8"-10000psi
13-5/8"
10000psi
3092
1516
1415
10955
16-3/4"-5000psi
16-3/4"
5000psi
4142
1040
1390
14797
18-3/4"-10000psi
18-3/4"
10000psi
4226
1556
1890
24500
18-3/4"-15000psi
18-3/4"
15000psi
4340
1780
1976
34400
20-3/4"-3000psi
20-3/4"
3000psi
4494
1115
1370
13993
21-1/4"-5000psi
21-1/4"
5000psi
4548
1218
1603
18556
Annular
BOP
|
Model |
Bore size |
Working pressure |
Closing oil quantity |
Opening quantity |
overall dimensions |
Weight |
|||||
|
A |
B |
C |
D |
E |
F |
||||||
|
FH18-21 |
179.4 |
21/3000 |
21 |
15 |
745 |
769 |
141 |
309 |
37 |
225 |
1433 |
|
FH18-35 |
35/5000 |
21 |
15 |
745 |
797 |
169 |
309 |
31 |
231 |
1520 |
|
|
FH23-21 |
228.6 |
21/3000 |
34 |
22.8 |
902 |
838 |
128 |
494 |
48 |
260 |
2398 |
|
FH23-35 |
35/5000 |
42 |
33 |
1016 |
860 |
110 |
500 |
72 |
262 |
2986 |
|
|
FH28-21 |
279.4 |
21/3000 |
50 |
39 |
1014 |
870 |
152 |
529 |
52 |
290 |
2950 |
|
FH28-35 |
35/5000 |
6 |
72 |
1146 |
1110 |
242 |
676 |
74 |
313 |
4675 |
|
|
FH35-21 |
346.1 |
21/3000 |
94 |
69 |
1271 |
1105 |
170 |
470 |
80 |
345 |
5738 |
|
FH35-35 |
35/5000 |
94 |
69 |
1683 |
1558 |
296 |
1410 |
428 |
534 |
6415 |
|
|
FH48-35 |
425.3 |
35/5000 |
220 |
171 |
1375 |
1293 |
260 |
569 |
74 |
414 |
16000 |
|
FH53-21 |
527 |
21/3000 |
173 |
110 |
2240 |
1718 |
315 |
1201 |
140 |
564 |
6994 |
|
FH54-35 |
539.7 |
35/5000 |
241 |
181 |
|
|
|
|
|
|
20230 |
Mobile：+86 18710316881
Tel：+86 029 89240853
Email：sales@boban-oiltools.com
Add：No. 1511, Block C, Haibo Guangchang, Fengcheng 9th. Road, Weiyang District, Xi'an, China
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