Payment Terms | T/T |
Supply Ability | 5 sets per 3 months |
Delivery Time | 7 work days |
Packaging Details | Iron Case |
Name | Shaffer Annular Bop |
Application | Oilfield Drilling |
Rated Working Pressure | 5000psi |
Temperature Range for Metallic Materials | -59℃~+177℃ |
Temperature Range for Nonmetallic Sealing Materials | -26℃~+177℃ |
Performance Requirement | PR1、PR2 |
Brand Name | Shenkai |
Model Number | 11" |
Certification | API 16A |
Place of Origin | China |
View Detail Information
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Product Specification
Payment Terms | T/T | Supply Ability | 5 sets per 3 months |
Delivery Time | 7 work days | Packaging Details | Iron Case |
Name | Shaffer Annular Bop | Application | Oilfield Drilling |
Rated Working Pressure | 5000psi | Temperature Range for Metallic Materials | -59℃~+177℃ |
Temperature Range for Nonmetallic Sealing Materials | -26℃~+177℃ | Performance Requirement | PR1、PR2 |
Brand Name | Shenkai | Model Number | 11" |
Certification | API 16A | Place of Origin | China |
High Light | 11 Inch Annular Bop ,11 Inch Shaffer Annular ,Oilfield Drilling Shaffer Annular |
11 Inch 5000psi Shaffer Annular Bop Oilfield Drilling
What is annular bop
Used in conjunction with the hydraulic control system, the Annular Bop seals off the annulus of different sizes when pipes are in use in the hole. An Annular Bop can also seal off the annular space which is formed by Kelly, coring tool, cables, wire rope etc. and wellbore when no pipe is in it. When used in conjunction with the pressure-regulating valve and accumulator, the annular Blowout Preventer allows snubbing service.
High-grade ram rubber core and side flange sealing can meet extreme circumstances, such as high and low temperatures or acidic conditions.
How the annular BOP work
Close – When the hydraulic oil is pumped into the extended port, the element inside will be lifted and squeezed into the pipe/tubular.
Open – On the other hand, if the hydraulic fluid is pumped into the retract port, the element will be pushed down resulting in releasing the tubular.
Annular vs RAM BOP
The annular blowout preventer performs several functions in drilling operations. It seals the annular space between the tubing, casing, and drill pipes. It also helps maintain the seal when the casing, tubing, or drill pipes are out of the drill hole. Unlike RAM blowout preventers, annular BOPs can seal various pipes of different sizes.
shaffer bop specs
Item |
Specification for Annular BOP |
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Size and model |
7 1/16″ -3000psi |
7 1/16″ -5000psi |
9″ -3000psi |
9″ -5000psi |
11″ -3000psi |
11″ -5000psi |
13 5/8″ -3000psi |
13 5/8″ -5000psi |
20 3/4″ -3000psi |
21 1/4″ -5000psi |
mm/in Bore (mm/in.) |
179.4 7 1/16 |
179.4 7 1/16 |
228.6 9 |
228.6 9 |
279.4 11 |
279.4 11 |
346.1 13 5/8 |
346.1 13 5/8 |
527 20 3/4 |
539.8 21 1/4 |
Rated working pressure (MPa/psi) |
21 3,000 |
35 5,000 |
21 3,000 |
35 5,000 |
21 3,000 |
35 5,000 |
21 3,000 |
35 5,000 |
21 3,000 |
35 5,000 |
Hydrostatic pressure testing pressure (MPa/psi) |
42 6,000 |
70 10,000 |
42 6,000 |
70 10,000 |
42 6,000 |
70 10,000 |
42 6,000 |
70 10,000 |
31.5 4,500 |
70 10,000 |
Hydraulic-controlled rated working pressure (MPa/psi) |
21/3,000 |
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Recommended hydraulic working pressure seal pipe (MPa/psi) |
1,218~1,522psi |
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Max. working pressure seal well without a pipe in (MPa/psi) |
10.5 1,500 |
17.5 2,500 |
10.5 1,500 |
17.5 2,500 |
10.5 1,500 |
17.5 2,500 |
10.5 1,500 |
17.5 2,500 |
10.5 1,500 |
17.5 2,500 |
Recommended hydraulic working pressure seal well without a pipe in (MPa/psi) |
≤10 .5/1,500 |
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Open Max. oil volume (L) |
15 |
15 |
22.8 |
33 |
39 |
56 |
69 |
69 |
110 |
181 |
Close Max. oil volume (L) |
21 |
21 |
34 |
42 |
50 |
72 |
94 |
94 |
173 |
241 |
Lift weight by two lifting rings (t) |
16 |
16 |
16 |
25 |
25 |
25 |
32 |
32 |
32 |
64 |
The outlet of hydraulic oil |
NPT 1” |
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Temperature grade of metal |
T-20/250(-29℃~121℃) |
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Temperature grade of non-metal |
BAB (-18℃~66℃~93℃) |
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Medium material contact with well liquid |
Per to NACE MR-01-75, meet API 16A 4th Edition Standard |
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2018
Total Annual:
7000000-8000000
Employee Number:
80~100
Ecer Certification:
Verified Supplier
Hebei E-valves Petroleum Equipment Co., Ltd. is a comprehensive international company integrating manufacturer, sales and trading. Our headquarter(Factory) locates in Jiangsu Province, China. E-alves specilized in R&D and projects solutions as wel las manufacturing equipments for Pet... Hebei E-valves Petroleum Equipment Co., Ltd. is a comprehensive international company integrating manufacturer, sales and trading. Our headquarter(Factory) locates in Jiangsu Province, China. E-alves specilized in R&D and projects solutions as wel las manufacturing equipments for Pet...
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