Roller cone drill bits with optimized bearing structures

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9493990
APP PUB NO 20080087471A1
SERIAL NO

11950221

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A roller cone drill bit may include optimally designed bearing structures and cutting structures. The roller cone drill bit may include three cone assemblies rotatably mounted on respective spindles via respective bearing structures. Each cone assembly may have a respective cutting structure with a minimal moment center located along each respective axis of rotation. Each respective bearing structure has a center point located proximate each respective minimal moment center.

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Patent Owner(s)

  • HALLIBURTON ENERGY SERVICES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Shilin The Woodlands, US 144 1266
Sui, Ping C The Woodlands, US 12 147

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