Controlled centrifuge systems

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8172740
APP PUB NO 20090105059A1
SERIAL NO

12231293

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The present disclosure is generally directed to centrifuge systems and methods for controlling centrifuge systems, wherein the systems in certain aspects are adapted for processing material, e.g., but not limited to drilling fluids with solids therein. One illustrative method includes providing a centrifuge system that is made up of, among other things, a bowl, a bowl motor system, a bowl variable frequency drive, a conveyor, a conveyor motor, a conveyor variable frequency drive, a pump, a pump motor, and a pump variable frequency drive. Additionally, the centrifuge system includes a control system that is adapted to control the bowl variable frequency drive, the conveyor variable frequency drive, and the pump variable frequency drive. The method includes controlling the centrifuge system in the G-force differential control mode by controlling the G-force on the bowl as the bowl is rotated by the bowl motor system so that the G-force on the bowl does not exceed a pre-set maximum G-force.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
NATIONAL OILWELL VARCO L P7909 PARKWOOD CIRCLE DRIVE HOUSTON TX 77036

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
El, Dorry Khaled The Woodlands, US 2 16
Guggari, Mallappa Ishwarappa Cedar Park, US 1 77
Koederitz, William L Cedar Park, US 10 554
Smith, George Edward Missouri City, US 8 180

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