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    • 4. 发明授权
    • Oil recovery process using arkyl aryl polyalkoxyol sulfonate surfactants
as mobility control agents
    • 使用烷基芳基聚烷氧基磺酸盐表面活性剂作为迁移控制剂的油回收方法
    • US5046560A
    • 1991-09-10
    • US205715
    • 1988-06-10
    • Gary F. TeletzkeRonald L. Reed
    • Gary F. TeletzkeRonald L. Reed
    • C09K8/592C09K8/594E21B43/16E21B43/24
    • C09K8/592C09K8/594E21B43/164E21B43/24Y02P90/70Y10S507/936
    • 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 ##STR1## 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 --SO.sub.3.sup.- M.sup.+ or --R'SO.sub.3.sup.- M.sup.+ wherein M.sup.+ 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; andy ranges from 3 to about 100.
    • 公开了一种从地层中回收油的方法,其中将表面活性剂水溶液注入地层以降低气驱过程中气体的迁移率。 气体可以包括烃气体,惰性气体,二氧化碳和蒸汽,或其混合物。 表面活性剂由通式“IMAGE”表示,其中R是具有n个碳原子的直链或支链烷基,其中n为约6至约50,不同之处在于如果气体为蒸汽n的范围为约9至约50 ; Ar是单核或稠环双核芳基; Z是由-SO 3 -M +或-R'SO 3 -M +组成的离子基团,其中M +是阳离子,R'是1至约6个碳原子的直链或支链烷基; x的范围为0至约20; y范围为3至约100。