Wear resistant downhole piston

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11692416
APP PUB NO 20210262290A1
SERIAL NO

17177859

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A piston for use in a rotary steerable system includes a body formed from a first material. A sealing surface extends around the circumferential wall of the body. The sealing surface is formed from a plurality of layers of a second material. The second material is harder than the first material. The piston can be within a downhole piston assembly that also includes a housing, and the piston being longitudinally movable in a bore in the housing. A method for producing a piston includes preparing a piston formed from a first material, with the piston including a first end. A sealing surface is applied to the piston using laser cladding, with the sealing surface including a second material harder than the first material. The sealing surface is finished to a sealing surface diameter.

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Patent Owner(s)

Patent OwnerAddress
SCHLUMBERGER TECHNOLOGY CORPORATION300 SCHLUMBERGER DRIVE SUGAR LAND TX 77478

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Noel, Anan Oklahoma City, US 2 0

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