Blowout preventer shearing and sealing rams

Details Blowout preventer shearing and sealing rams Blowout preventer shearing and sealing rams

E - Fixed Constructions

21

B

166/50

E21B 33/06 (2006.01)

Patent

CA 1142427

DIV. I ABSTRACT OF THE DISCLOSURE This invention relates to rams in a blowout preventer to shear the drill string and seal the well bore should the need arise. Two shearing rams have cutting blades which shear the drill pipe. A seal member is mounted behind one of the cutting blades and is adapted to move into sealing position after shearing has occurred. Elastomer flow into areas where there has been damage to the seal member is permitted by the design of the seal member.

404912

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