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    • 8. 发明授权
    • Oil recovery process usable in high temperature formations containing
high salinity water which may include high concentrations of polyvalent
ions
    • 油回收方法可用于包含高盐度水的高温地层,其可包括高浓度的多价离子
    • US4094798A
    • 1978-06-13
    • US754788
    • 1976-12-27
    • Jack F. TateJim Maddox, Jr.
    • Jack F. TateJim Maddox, Jr.
    • C09K8/584E21B43/22
    • C09K8/584Y10S507/936
    • A fluid containing a dual surfactant system and a process using the fluid for recovering petroleum from petroleum formations containing high salinity water, e.g. from 50,000 to 225,000 parts per million which may include from about 200 to about 14,000 parts per million polyvalent ions such as calcium and/or magnesium dissolved therein and a method of using said fluid in a surfactant flooding oil recovery process. The surfactant system comprises a water-soluble salt of petroleum sulfonate or an alkyl or alkylaryl sulfonate wherein the alkyl chain may have from 5 to 25 carbon atoms, plus a phosphate ester surfactant with an average molecular weight not to exceed 1000. The surfactant combination is stable up to at least 225.degree. F and resistant to bacterial attack and inhibits scale formation.
    • 含有双重表面活性剂体系的流体和使用该流体从含有高盐度水的石油地层回收石油的方法,例如, 从50,000到225,000份/百万份,其可以包括从约200到约14,000份/百万的多价离子如钙和/或镁溶解在其中,以及在表面活性剂浸油回收过程中使用所述流体的方法。 表面活性剂体系包括石油磺酸盐的水溶性盐或烷基或烷基芳基磺酸盐,其中烷基链可以具有5至25个碳原子,加上平均分子量不超过1000的磷酸酯表面活性剂。表面活性剂组合是 稳定至少225°F,耐细菌侵袭并抑制结垢。
    • 9. 发明授权
    • Surfactant oil recovery process usable in high temperature formations
having high concentrations of polyvalent ions
    • 可用于具有高浓度多价离子的高温地层中的表面活性剂油回收方法
    • US4008165A
    • 1977-02-15
    • US593394
    • 1975-07-07
    • Jim Maddox, Jr.Jack F. Tate
    • Jim Maddox, Jr.Jack F. Tate
    • C09K8/584E21B43/22
    • C09K8/584Y10S507/92Y10S507/927Y10S507/936Y10S516/05
    • A three surfactant system usable in high temperature petroleum formations containing water having from about 200 to about 14,000 parts per million polyvalent ions such as calcium and/or magnesium dissolved therein and a pH of from 5 to 9, and a method of using said surfactant system for recovering petroleum from high temperature subterranean petroleum-containing formations. The three component surfactant system comprises (1) water-soluble salt of an alkyl or alkylaryl sulfonate wherein the alkyl chain may have from 5 to 25 carbon atoms, (2) a phosphate ester surfactant with an average molecular weight not to exceed 1000, and (3) a surfactant having the following betaine related structure: ##STR1## wherein R is an alkyl group having from 12 to 24 carbon atoms, and n is an integer from one to five. The surfactant combination is stable up to at least 225.degree. F and resistant to bacterial attack and inhibits scale formation.
    • 一种三元表面活性剂体系,其可用于含有约200至约14,000份/百万分之几的多价离子(例如溶解于其中的钙和/或镁)和5至9的pH的高温石油化合物,以及使用所述表面活性剂体系 用于从高温含地下石油的地层回收石油。 三组分表面活性剂体系包括(1)烷基或烷基芳基磺酸盐的水溶性盐,其中烷基链可以具有5至25个碳原子,(2)平均分子量不超过1000的磷酸酯表面活性剂,以及 (3)具有以下甜菜碱相关结构的表面活性剂:其中R为具有12至24个碳原子的烷基,n为1至5的整数。 表面活性剂组合稳定至少225°F,耐细菌侵袭并抑制结垢。