API 16A Annular Blowout Preventer(BOP) Manufacturer
Key Capabilities
Compact in design, this annular BOP offers versatile sealing for a full range of downhole tools: it effectively seals Kellys, drill pipes, tool joints, drill collars, casing, and wireline, regardless of size. Its spherical structure provides precise pressure control, enabling safe stripping of drill pipes into and out of the wellbore—a critical function for maintaining well integrity during tripping operations.
Engineering Advantages
Enhanced Reliability: Features a self - sealing lip seal design that minimizes leak risks, even under fluctuating pressures. A dedicated bore in the piston allows for stroke testing, enabling proactive monitoring of sealing element life—reducing unplanned downtime.
Durability: Friction surfaces are protected by replaceable abrasion - resistant plates, safeguarding the main housing and simplifying maintenance.
Long - Lasting Sealing: The packing element is engineered with high rubber storage capacity, reducing friction during pressure cycling and extending service life. It maintains positive sealing even after hundreds of full - pressure tests, ensuring consistent performance over time.
Simplified Maintenance: With only five major components, the design streamlines disassembly and repair. Hemispherical housing ends eliminate stress concentration under pressure, making inspection and part replacement faster and safer.
This annular BOP combines rugged construction with smart engineering, ensuring reliable pressure control, easy servicing, and long - term durability—critical for maximizing operational efficiency in both onshore and offshore drilling environments.
There are three models:
Model |
Bore (in) |
Working Pressure |
Operating Pressure |
Weight |
FH18-21 |
7 1/16" |
3000PSI |
1500PSI |
3157lb |
1432kg | ||||
FH18-35 |
7 1/16" |
5000PSI |
1500PSI |
3351lb |
1520kg | ||||
FH23-35 |
9" |
5000PSI |
1500PSI |
6724lb |
3050kg | ||||
FH28-21 |
11" |
3000PSI |
1500PSI |
7496lb |
3400kg | ||||
FH28-35 |
11" |
5000PSI |
1500PSI |
10236lb |
4643kg | ||||
FH28-70/105 |
11” |
10000PSI |
1500PSI |
15500lb |
7031kg | ||||
FH35-21 |
13 5/8" |
3000PSI |
1500PSI |
12566lb |
5700kg | ||||
FH35-35 |
13 5/8" |
5000PSI |
1500PSI |
14215lb |
6448kg | ||||
FH35-70/105 |
13 5/8” |
10000PSI |
1500PSI |
19800lb |
8981kg | ||||
FH48-35 |
18 3/4" |
5000PSI |
1500PSI |
35979lb |
16320kg | ||||
FH48-70/105 |
18 3/4” |
10000PSI |
1500PSI |
70955lb |
32185kg | ||||
FH53-21 |
20 3/4" |
3000PSI |
1500PSI |
15726lb |
7133kg | ||||
FH54-35 |
21 1/4" |
5000PSI |
1500PSI |
44577lb |
20220kg |