Wellbore top drive systems

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7320374
APP PUB NO 20050274508A1
SERIAL NO

11140462

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system for wellbore operations, the system, in at least certain aspects, including a derrick, a guide beam connected to the derrick, a top drive movable on the guide beam, torque reaction structure connected to the guide beam and to the derrick, skid apparatus held by the torque reaction structure, the skid apparatus movable vertically with respect to the torque reaction structure to prevent a vertical load from passing from the skid apparatus to the torque reaction structure.

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Patent Owner(s)

  • VARCO I/P, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Folk, Robert Alden Calgary, CA 13 383
Folk, Steven Lorne Sherwood Park, CA 13 383

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