发明名称 |
USE OF ALKOXYLATED ALCOHOL ANIONIC SURFACTANT IN ENHANCED OIL RECOVERY |
摘要 |
The invention relates to a method of treating a hydrocarbon containing formation, comprising the following steps: a) providing a composition, which comprises a surfactant which is a compound of the formula (I) R—O—[R′—O]x—X, wherein R is a hydrocarbyl group having a weight average carbon number of from 13 to 30, R′—O is an alkylene oxide group, x is the number of alkylene oxide groups R′—O, and X is selected from the group consisting of: (i) a group comprising a sulfate moiety; (ii) a group comprising a carboxylate moiety; and (iii) a group comprising a sulfonate moiety, to at least a portion of the hydrocarbon containing formation, wherein the hydrocarbon containing formation comprises a crude oil which has a weight ratio of saturates to aromatics of from 0.6 to 5.0; and b) allowing the surfactant from the composition to interact with the hydrocarbons in the hydrocarbon containing formation. |
申请公布号 |
US2016177172(A1) |
申请公布日期 |
2016.06.23 |
申请号 |
US201615058651 |
申请日期 |
2016.03.02 |
申请人 |
SHELL OIL COMPANY |
发明人 |
BARNES Julian Richard;KROM Cornelia Alida;ON Quoc An;DUBEY Sheila Teresa;GROEN Khrystyna |
分类号 |
C09K8/584 |
主分类号 |
C09K8/584 |
代理机构 |
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代理人 |
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主权项 |
1. A method of treating a hydrocarbon containing formation, comprising the following steps:
a) providing a composition, which comprises a surfactant which is a compound of the formula (I)
R—O—[R′—O]x—X Formula (I) wherein R is a hydrocarbyl group having a weight average carbon number of from 13 to 30, R′—O is an alkylene oxide group, x is the number of alkylene oxide groups R′—O, and X is selected from the group consisting of: (i) a group comprising a sulfate moiety; (ii) a group comprising a carboxylate moiety; and (iii) a group comprising a sulfonate moiety, to at least a portion of the hydrocarbon containing formation, wherein the hydrocarbon containing formation comprises a crude oil which has a weight ratio of saturates to aromatics of from 0.6 to 5.0; and b) allowing the surfactant from the composition to interact with the hydrocarbons in the hydrocarbon containing formation. |
地址 |
Houston TX US |