Mechanically activated bypass valve apparatus and method

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United States of America Patent

PATENT NO 9890601
SERIAL NO

14802772

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A mechanically activated bypass valve apparatus for allowing fluid being pumped through the pipe or coiled tubing string to be bypassed around a tool string and into the wellbore. Activation of the bypass valve is accomplished by applying weight-on-bit to the apparatus to shear a set of shear screws, allowing the mandrel to move axially relative to the tubular housing. Lowering the pipe string and setting down weigh on bit misaligns fluid bypass ports in the mandrel and housing, thus forcing fluid to continue to flow through the bore of the tool and to the toolstring below the bypass tool. Picking up on the pipe string aligns corresponding ports in the mandrel and housing and allows fluid to flow from the bore of the tool to the wellbore annulus, thus bypassing other tools downhole of the apparatus.

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Patent Owner(s)

Patent OwnerAddress
KLX ENERGY SERVICES LLC2700 POST OAK BLVD SUITE 1400 HOUSTON TX 77056

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baudoin, Toby Scott Rayne, US 27 178

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