Variable diameter stator and rotor for progressing cavity motor

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United States of America Patent

PATENT NO 9869126
SERIAL NO

14821181

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A mud motor for use in a wellbore may include a stator and rotor. The tolerance between the stator and rotor may be varied along the length of the mud motor to, for example, reduce wear of the stator at predetermined locations. The tolerance may range from an interference fit to a clearance fit. The tolerance may vary multiple times across the length of the mud motor.

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Patent Owner(s)

Patent OwnerAddress
NABORS DRILLING TECHNOLOGIES USA INC515 WEST GREENS ROAD SUITE 1200 HOUSTON TEXAS 77067 77067

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Evans, Nigel Houston, US 48 737

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