Wells – Packers or plugs – Deformable portion engages conduit restriction
Patent
1991-03-20
1992-04-21
Britts, Ramon S.
Wells
Packers or plugs
Deformable portion engages conduit restriction
297 27, 297 65, 297235A, E21B 3300
Patent
active
051058790
ABSTRACT:
A seal is provided for containing fluid (either gaseous or liquid fluids) under variable pressure in a pressurized region to prevent leakage into a less pressurized region. First and second interfacing seal members are provided and adapted to slidably engage one another at an interface region during makeup of the seal apparatus. A seal region is carried by the first seal member at the interface region and composed of a deformable material. A seal bead is carried at the interface region by the second seal member and protrudes therefrom. The seal bead is composed of a material less malleable than the seal region for seating in the seal region. At least a portion of the second seal member adjacent the seal bead forms a containment barrier with the pressurized region on one side and the less-pressurized region on the opposite side. A pressure differential will develop between the pressurized region and the less-pressurized region which urges the seal bead into tighter engagement with the seal region in an amount corresponding to the pressure differential.
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Baker Hughes Incorporated
Britts Ramon S.
Hunn Melvin A.
Tsay Frank S.
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