<p>The present invention provides an internal olefin sulfonate composition, comprising water and an internal olefin sulfonate mixture having an average carbon number of at least 20, wherein the internal olefin sulfonate mixture comprises hydroxy sulfonates and alkene sulfonates in a weight ratio of hydroxy sulfonates to alkene sulfonates of at least 3.25. The invention further provides a method of treating a crude oil containing formation.</p>
申请公布号
CA2903024(A1)
申请公布日期
2014.09.12
申请号
CA20142903024
申请日期
2014.03.04
申请人
SHELL INTERNATIONALE RESEARCH MAARSCHAPPIJ B.V.
发明人
BARNES, JULIAN RICHARD;BUECHELE, JAMES LAUREL;DIRKSZWAGER, HENDRIK;GENUIT, WILLEM JOHAN LOUIS;PURCELL, JEREMIAH MICHAEL;REZNIK, CARMEN;SEMIEN, CATHERINE