API standard Annular Blowout Preventer(BOP) Drilling Equipment
- 1000 per Month
- T/T Credit Card
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Product Description
BOP is used for formation testing,drilling workover operations and well completion operations etc to prevent well blowout,make the two functions of fully closed and semi-closed together,and it has features of simple stucture,easy operation and high pressure resistance etc,it's a safety sealing device commonly used to prevent blowouts in oilfield.
1. Application
Used in conjunction with hydraulic control system,the annular BOP seals off the annulus of different sizes when drilling tool is set in the hole,when there is no drilling tool in the hole,it can also seal off the wellhead.If well blowout happens during the coring and measuring operation,it can seal off the annular spaces between the well barrel and kelly,coring tool,cable and steel rope etc.matched with pressure-relief valve and buffer tank,it can force-execute the running/retrieving drill operation through butt-weld drilling-rod at 18 degree without fine thread.
2. Working Principles
A hydraulic control system is used to close or open the annular preventer.When it is closed,high pressure oil is directed to the closing chamber positioned in the lower side of the piston,causing the piston to move upward.The rubber core is compressed by the moving piston.Because the annular BOP has a cap,the packing unit can not move upward and only can move toward the center of the well to pack off a string or seal off the well.
3. Operating Requirements
(1) The annular BOP can be used to seal off a well where the drill pipe is in use if the well blowout.However,the annular BOP cannot be closed for along time,because the packing unit is easy to be damaged and the BOP itself has no locing mechanism.
(2) It is necessary to use a drilling tool with 18° bevel when running/retrieving drill of operation with BOP,running/retrieving drill should be slow pass through the nippple and all the rubber protecting collar on the drilling tool should be discharged off.
(3) With the annular BOP in the closed position and shut in pressure kept below 5Mpa,the string can be moved either up or down,but mustn't be rotated.
(4) It is forbidden to open the annular BOP to relieve the pressure out of the well to avoid rubber core damage.
(5) Be suer to check whether the annular BOP is in the full open position or not every time after opened in order to prevent damage to the packing unit.
(6) Clean the inside of the BOP after well cementing operation is completed in order to keep its closings and openings flesxble.
(7) More attention shall be paid to ring gasskets and gasket grooves during installation of the BOP or its removal from the service.
(8) After entering the destination layer,running/retrieving drill once should be accompanied with test of well-enclosed with drilling tool once,and inspect the effect of well enclosed with rubber core,is beyound the requirement,it should be replaced.
(9) Peridically perform pressure test on the annular BOP in accordance with applicable standards.
- Packaging Details:
- plywood and steel frame,the size is depended on the casing head size.
- Delivery Detail:
- 45days after receive payment
Who We Are?
a professional company which composited with designing, manufacturing, and Exporting of oil equipments, and we are aiming to provide one-stop purchasing service for all customers.
What We Do?
providing drilling and extracting equipments and tools; well control equipments, wellhead and valves. Besides these, we are also providing mud pump and its spare parts. All products are designed, and manufactured strictly conformed with API or ISO, and we are authority of API Monogram.
Why Us?
Our products have been ISO9001 certified and attained API 6A, 6D, API 7, 7K, and API 16A & 16C approvals of American Petroleum Institute.
We have a lot of experts with many years' experience in the petroleum machinery field. They have accumulated plentiful knowledge and experience in the design, manufacture, inspection, testing, marketing and service of oil exploring and extracting equipment. We have all kinds of equipment for the cold-working and heat-working. We also have a complete set of facilities for inspection and testing. All products, such as the Christmas trees, casing heads, choke and kill manifolds, drilling mud manifolds, high-and-middle pressure valves and other components for oil drilling and extracting, are fully designed and manufactured in accordance with API, ANSI, GB (national standards) and SY (industry standards) standards.
Contact Us
- Sunshinepower(wuxi)co.,ltd
- Contact nameTom
- Phone86-159-95218408
- Addresschangjiang rod 280 Wuxi,Jiangsu
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