发明名称 |
Oil recovery process using arkyl aryl polyalkoxyol sulfonate surfactants as mobility control agents |
摘要 |
A method for recovering oil from a subterranean formation is disclosed wherein an aqueous surfactant solution is injected into the formation to reduce the mobility of gas in a gas-flooding process. The gas may include hydrocarbon gas, inert gas, carbon dioxide, and steam, or mixtures thereof. The surfactant is represented by the general formula <IMAGE> where R is a linear or branched chain alkyl group with n carbon atoms wherein n ranges from about 6 to about 50, except that if the gas is steam n ranges from about 9 to about 50; Ar is a mononuclear or fused ring dinuclear aryl group; Z is an ionic group consisting of -SO3-M+ or -R'SO3-M+ wherein M+ is a cation and R' is a linear or branched chain alkyl group of from one to about six carbon atoms; x ranges from 0 to about 20; and y ranges from 3 to about 100.
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申请公布号 |
US5046560(A) |
申请公布日期 |
1991.09.10 |
申请号 |
US19880205715 |
申请日期 |
1988.06.10 |
申请人 |
EXXON PRODUCTION RESEARCH COMPANY |
发明人 |
TELETZKE, GARY F.;REED, RONALD L. |
分类号 |
C09K8/592;C09K8/594;E21B43/16;E21B43/24 |
主分类号 |
C09K8/592 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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