Urea as a cosurfactant in enhanced oil recovery processes

United States of America Patent

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Jan 15, 1985
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N/A
app pub date
Jan 27, 1983
filing date
Jan 27, 1983

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Expired

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Abstract

A surfactant system useful for oil recovery comprising salt water, a surfactant, such as a petroleum sulfonate, and urea. Optionally, a C.sub.3 to C.sub.8 alcohol is additionally present as a cosurfactant.

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Patent Owner(s)

Patent Owner	Address
PPG INDUSTRIES INC A CORP OF PA	PITTSBURGH PA

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E21B:EARTH OR ROCK DRILLING

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[Patents Count]

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Inventor Name	Address	# of filed Patents	Total Citations
Chaney, Mary B	Bartlesville, OK	2	11
Stapp, Paul R	Bartlesville, OK	45	289

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Urea as a cosurfactant in enhanced oil recovery processes

Number of patents in Portfolio can not be more than 2000

United States of America Patent

06461320

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PATENT NO	4493370
SERIAL NO	06461320
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