发明名称 PROCESS FOR PREPARING SULFONATED INTERNAL OLEFIN SURFACTANT FOR ENHANCED OIL RECOVERY
摘要 A process for preparing a sulfonated derivative comprising a metathesis of an unsaturated glyceride-containing composition in the presence of the metathesis catalyst obtaining one or more alpha-olefins, the metathesis of one or more alpha-olefins in the presence of the metathesis catalyst obtaining a composition containing one or more internal olefins of the formula RRC=CRRwherein R, R, Rand Rare the same or different and are hydrogen or straight- or branched-chain, saturated hydrocarbyl groups and the total number of carbon atoms of R, R, Rand Ris 6 to 44, with the proviso that at least about 96 mole percent of Rand Rare straight- or branched-chain, saturated hydrocarbyl groups and at least about 96 mole percent of Rand Rare hydrogen, and sulfonating a composition comprising one of more internal olefins obtaining the sulfonated derivative. Further provided is a process for recovering oil from an oil-bearing formation comprising introducing into said formation an aqueous composition comprising at least one surfactant containing said sulfonated derivative.
申请公布号 EA023415(B1) 申请公布日期 2016.06.30
申请号 EA20120091183 申请日期 2011.05.20
申请人 STEPAN COMPANY 发明人 HUTCHISON JOHN, C.;WOLFE PATRICK, SHANE
分类号 E21B43/16 主分类号 E21B43/16
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