Method and device with biasing force for sealing a well

Details Method and device with biasing force for sealing a well Method and device with biasing force for sealing a well

2011-07-12

2011-07-12

Thompson, Kenneth (Department: 3672)

Wells

Above ground apparatus

With assembly or disassembly means

C251S001300

Reexamination Certificate

active

07975761

ABSTRACT:
Methods and devices with biasing force for sealing a well. Such a device is a blowout preventer has a body including a cavity having first and second recesses, a ram block configured to move inside the cavity, a top seat provided in the first recess and configured to seal the well when the ram block is closed, a wear plate provided in the second recess and configured to contact the ram block when the ram block moves inside the cavity over the wear plate, and a biasing element provided inside the cavity and configured to apply a biasing force on at least one of the top seat, the ram block or the wear plate to increase the sealing of the well.

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Office Action issued in related U.S. Appl. No. 11/609,585, mailed on Jun. 1, 2009.

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