Spherical Annular BOP Packing Element For Oilfield
Working Principle:
When wells must be sealed in case of kicks high pressure (10.5Mpa) oil from control systems enters into close-cavity under the piston from the housing oil outlet, to promote plastic core moving upward along the ball surface, so that bearing tendons move closer to each other to move the rubber between them to the center of wellhead to seal drilling tools or fully seal wellhead. In the opening, hydraulic pressure oil enters into open cavity above the piston from the housing oul inlet, to push the piston moving downwards, so that the plastic will reset with its elasticity, wellhead will be open.
Annular BOP Packing Element Parameters
working pressure MPa(psi) | Bore mm(in) | ||||||
179(7 1/16") | 228(9") | 279(11") | 346(13 5/8") | 527(20 3/4") | 540(21 1/4") | 750(29 1/2") | |
70(10000) | √ | √ | √ | ||||
35(5000) | √ | √ | √ | √ | √ | ||
21(3000) | √ | √ | √ | ||||
14(2000) |
√ |
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4(500) | √ |
Annular BOP Packing Element Features
1. By API Spec.16A
2. All the parts are original or interchangeable
3. Spherical Annular BOP Packing Element with Reasonable structure, easy operation, long life of plastic core
4. Spherical Annular BOP Packing Element Adapt to a wide range, capable to seal pipe string with nominal paths from 0-DN in and shapes, better performance by combining with ran blowout preventer in the use.