Schlumberger Technology Corporation

Walter Luckett

Kent David Harms

Karidja Louise-Olivia Djibo

Robert Kelly

A rotary check valve is disclosed having sealing surfaces between two sealing members that engage with a rotating shearing motion. The rotating shearing motion may shear debris between the sealing members and minimize or eliminate blockage of fluid passageways in the sealing members. In a closed position, the upper sealing member and lower sealing member are rotated such that fluid passageways in the upper sealing member and fluid passageways in the lower sealing member are not aligned and blocked by the sealing surfaces. The sealing members of the rotary check valve may be biased to a closed position via a spring.

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Sugar Land, TX, United States of America

Walter Luckett