Drawworks and motor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20080202042A1
SERIAL NO

11709940

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A rig system with a drawworks motor and a drawworks motor useful in systems for wellbore operations, the system in certain aspects including a rig, a derrick on the rig, a drawworks, the drawworks motor for powering the drawworks, the motor including a motor shaft, a plurality of power cables for providing electrical power to the motor, a portion of each of the plurality of power cables passing through the shaft, and a plurality of channels passing through the shaft adjacent the power cables and spaced-apart therefrom, the channels for the passage therethrough of a heat exchange fluid for the exchange of heat with the power cables to maintain the power cables at a desired temperature.

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Patent Owner(s)

Patent OwnerAddress
VARCO I/P2838 HOLMES RD HOUSTON TX 77051

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cervbenka, Gregory Paul Houston, TX 1 3
Mesrobian, Azad St. Peter, MN 1 3
Yang, James Deshine Houston, TX 1 3

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