Smith International, Inc.

Weatherford Technology Holdings, LLC

Enventure Global Technology Inc.

Weatherford/lamb, Inc.

Sam Sun Lloyd

Lev Ring

Brock Wayne Watson

David Paul Brisco

Robert Lance Cook

Kevin Karl Waddell

Edwin Arnold Zwald, Jr

James A Simson

George James Melenyzer

Harold Otis Treece

Michael R Reaves

Don C Gramlich

Akin Olufowoshe

A valve having a sealing surface that is rotated 90 degrees on axial floating hinge assemblies is provided. A sleeve moves into position to protect the valve mechanism when the valve is in an open position. A sleeve locks the valve sealing element in place in either a closed or open position. The valve may be used during drilling of wells to prevent flow into the casing when the drill pipe and bit are raised above the valve.

Mechanical bi-directional isolation valve

An apparatus for radially expanding and plastically deforming a tubular member. In some embodiments, the apparatus includes a support member and an adjustable expansion device coupled thereto. The adjustable expansion device includes a tubular support member with a plurality of circumferentially spaced apart inclined surfaces, a plurality of circumferentially spaced apart expansion segments movably coupled to the tubular support member, and an actuator for displacing the expansion segments relative to the tubular support member to thereby displace each of the expansion segments onto corresponding inclined surfaces.

Apparatus for radially expanding and plastically deforming a tubular member

A sealing apparatus for sealing an annulus between a mandrel and an outer tubular. The apparatus comprises a top seal ring and a bottom seal ring separated by a double-ramped cylinder, all mounted on the mandrel and fit within the inner diameter of the outer tubular. The sealing apparatus is placed on the mandrel in running in position. The mandrel and sealing apparatus are then placed downhole in the outer tubular. Once at the desired location, a load is applied to the top seal ring. Once the load reaches a predetermined magnitude, the ramp slides under and expands the bottom seal ring to form a pressure-tight seal with the outer tubular. Additional load placed on the top seal ring causes the top seal ring to slide over the ramp and expand. As the top seal ring expands, the top seal ring forms a pressure-tight seal with the outer tubular.

High pressure sealing apparatus and method

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Houston, TX, United States of America

Sam Sun Lloyd