发明名称 |
FREMGANGSMAATE FOR UTVINNING AV OLJE VED ANVENDELSE AV ALKYLARYLPOLYALKOKSYOLSULFONAT-OVERFLATEAKTIVE STOFFER SOM MOBILITETSREGULERENDE MIDLER. |
摘要 |
<p>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.</p> |
申请公布号 |
NO892379(A) |
申请公布日期 |
1989.12.11 |
申请号 |
NO19890002379 |
申请日期 |
1989.06.09 |
申请人 |
EXXON PRODUCTION RESEARCH CO |
发明人 |
TELETZKE GARY F;REED RONALD L |
分类号 |
C09K8/592;C09K8/594;E21B43/16;E21B43/24;(IPC1-7):E21B43/22 |
主分类号 |
C09K8/592 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|