DOWNHOLE TOOL USING A LOCKING CLUTCH

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20150376950A1
SERIAL NO

14740395

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A downhole tool may be operated using a locking clutch. The downhole tool may include an upper downhole motor having a rotor. The downhole tool may also include a lower downhole motor having a shaft. Both the rotor and shaft may rotate relative to the housing. The locking clutch may be coupled to the rotor and the shaft, and may transmit a torque from the rotor to the shaft. The locking clutch may include at least one locking pawl configured to move from an engaged position to a disengaged position when the shaft rotates above a disengagement speed. In the engaged position, the upper downhole motor may provide a torque boost to limit sticking or stall of a drill bit coupled to the downhole tool.

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First Claim

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Su, Zhenbi Spring, US 7 39

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