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In the structure, it is divided into annular blowout preventer with spherical plastic core, annular blowout preventer with cone-shaped plastic core, and blowout preventer with tube-shaped plastic core. Annular BOP top cap and housing are connected by bolts or claw blocks.
Blowout preventer with spherical plastic core and dust-proof ring.
Performance characteristics: reasonable structure, easy operation, long life of plastic core, adapt to a wide range, capable to seal pipe string with nominal paths from 0-DN in ans shapes, better performance by combining with ran blowout preventer in the use.
Working Principle:
When wells must be sealed in case of kicks high pressure (10.5Mpa) oil from control systems enters into close-cavity under piston from housing oil outlet, to promote plastic core moving upward along ball surface, so that bearing tendons move closer to each other to moce the rubber between them to the center of wellhead so as to seal drilling tools or fully seal wellhead. In opening , hydraulic pressure oul enters into open-cavity above piston from housing oul inlet, to push piston moving downwards , so that plastic will reset with its own elasticity, wellhead will be open.
When you have any demands on BOP, BOP ram, Ram Packers and packing element, freely contact me for best quotation. We can provide you various brand and type product.
Annular BOP packing element specification
Physics performance of rubber
| Iitem | Inspection item | Technical specification ≤35MPa | Technical specification ≥70MPa |
| 1 | toughness A | 75±5 | 85±5 |
| 2 | 300% tensile toughness Mpa | ≥10 | ≥10 |
| 3 | tensile toughness Mpa | ≥19.6 | ≥19.6 |
| 4 | elongation rate % | ≥250 | ≥200 |
| 5 | permanent distortion % | ≤25 | ≤20 |
| 6 | aging rate120ºC×24h | ≥0.6 | ≥0.6 |
| 7 | brittleness temperatureºC | ≤-18 | ≤-18 |
| 8 | brittleness temperature KN/m | ≥40 | ≥40 |
| 9 | brittleness temperature Mpa | ≥4 | ≥4 |
High performance rubber physics specification(HNBR material, Cameron refer to Cameron type material specification)
| Iitem | Inspection item | Technical specification |
| 1 | toughness A | 75±5 |
| 2 | 300% tensile toughness Mpa | ≥10 |
| 3 | tensile toughness Mpa | ≥18 |
| 4 | elongation rate % | ≥400 |
| 5 | permanent distortion % | ≤30 |
| 6 | aging rate120ºC×24h | ≥0.6 |
| 7 | brittleness temperatureºC | ≤-18 |
| 8 | brittleness temperature KN/m | ≥40 |
| 9 | brittleness temperature Mpa | ≥4 |
Lake Petro company
is a professional supplier of various oilfield equipment, including oil drilling and service equipment,oil production equipment,OCTG ,wellhead & downhole tools and spare parts with API certification. our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). Lake Petro company has become VIP (assigned) supplier and built strategic partnership with some coutries' national petroleum companies.
How to order?
Please send us your inquiry with detail item description or with Model number.
If there is no packing demand we take it as our regular exported standard packing.
We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.
You send ud your detail requirement, we provide quotation to you.
Can I expect a quality products?
All the production and processing are strictly according to ISO 9001:2008 and API standard. At the same time, mature production technology ensuring the quality satisfy international request. We also welcome the third party inspection, such as BV, SGS and TUV.
The information you may like to know before Payment:
1. Methods of Payment:
T/T (Telegraphic Transfer) or L/C at sight
2. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
3. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
Contact information
Attn: Melody Wang
