Oil recovery method for waxy crude oil using alkylaryl sulfonate surfactants derived from alpha-olefins and the alpha-olefin compositions

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United States of America Patent

PATENT NO 6269881
SERIAL NO

09466243

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Abstract

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An oil recovery process is disclosed which uses a particular class of alkylaryl sulfonate surfactants. The surfactants are derived from an alpha-olefin stream having a broad distribution of even carbon numbers ranging from 12 to 58. The olefin stream is reacted with aromatic feedstock, such as benzene, toluene, xylene, or a mixture thereof to form alkylates, and then reacted with SO3 to form sulfonic acids. The resulting surfactant has high solubilization and ultra-low interfacial tension with crude oils, especially waxy crude oil, having a broad distribution of carbon numbers.

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Patent Owner(s)

Patent OwnerAddress
CHEVRON U S A INC6001 BOLLINGER CANYON ROAD SAN RAMON CA 94583-2324
CHEVRON CHEMICAL COMPANY LLC555 MARKET STREET SAN FRANCISCO CA 94105

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Campbell, Curtis B Hercuies, CA 39 579
Chou, Shang Fullerton, CA 3 147

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