Well drilling fluids and process for drilling wells

United States of America Patent

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Mar 14, 1989
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N/A
app pub date
Sep 24, 1987
filing date
Dec 13, 1985

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Expired

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Abstract

The rheological characteristics of aqueous well drilling fluids are improved by incorporating into the fluids small amounts of sulfonated styrene-maleimide copolymers and at least one water-soluble polymer prepared from acrylic acid or acrylate or their derivatives.

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Patent Owner(s)

Patent Owner	Address
ATLANTIC RICHFIELD COMPANY LOS ANGELES CA A CORP OF DE	DE

International Classification(s)

C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hale, Arthur H	Sand Springs, OK	54	2377
Lawson, Horace F	Downington, PA	2	19

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Well drilling fluids and process for drilling wells

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07100460

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PATENT NO	4812244
SERIAL NO	07100460
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07100460

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