USE OF LONG CHAIN INTERNAL OLEFIN SULFONATES
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United States of America Patent
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Dec 4, 2014
app pub date -
May 7, 2014
filing date -
May 13, 2013
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Abstract
The present invention provides a method for treating a formation containing crude oil hydrocarbons, comprising injecting an aqueous composition comprising an internal olefin sulfonate with a nominal carbon chain length between 24 to 44 into said formation and displacing said crude oil hydrocarbons toward one or more production wells. The invention further provides a method for treating a formation containing crude oil hydrocarbons, a method for improving the wettability of a subsurface surface in an subsurface formation containing crude oil hydrocarbons, and a method for separating crude oil hydrocarbons from crude oil hydrocarbons compositions.
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