SULFONATED INTERNAL OLEFIN SURFACTANT FOR ENHANCED OIL RECOVERY
    72.
    发明公开
    SULFONATED INTERNAL OLEFIN SURFACTANT FOR ENHANCED OIL RECOVERY 审中-公开
    用于增强油回收的磺化内烯烃表面活性剂

    公开(公告)号:EP2576975A1

    公开(公告)日:2013-04-10

    申请号:EP11787169.9

    申请日:2011-05-20

    申请人: Stepan Company

    IPC分类号: E21B43/16

    摘要: A process for recovering oil from an oil-bearing formation comprises introducing into said formation an aqueous composition comprising at least one sulfonated derivative of one or more internal olefins, said internal olefins being characterized by having low amounts of tri-substitution on the olefin bond, said sulfonated derivative being obtained by sulfonating a composition comprising internal olefins of the formula: R1R2C=CR3R4 wherein R1, R2, R3 and R4 are the same or different and are hydrogen or straight- or branched-chain, saturated hydrocarbyl groups and the total number of carbon atoms of R1, R2, R3 and R4 is 6 to 44 with the proviso that at least about 96 mole percent of R1 and R3 are straight- or branched-chain, saturated hydrocarbyl groups and at least about 96 mole percent of R2 and R4 are hydrogen. Further provided are compositions for use in recovering oil from an oil-bearing formation.

    摘要翻译: 一种从含油地层中采收油的方法,包括向所述地层中引入包含至少一种一种或多种内烯烃的磺化衍生物的含水组合物,所述内烯烃的特征在于在烯烃键上具有少量的三取代, 所述磺化衍生物通过将包含下式的内烯烃的组合物磺化获得:其中R 1,R 2,R 3和R 4相同或不同并且是氢或直链或支链饱和烃基,并且总数 的R 1,R 2,R 3和R 4的碳原子数为6至44,条件是至少约96摩尔%的R 1和R 3是直链或支链饱和烃基和至少约96摩尔%的R 2和 R4是氢。 进一步提供了用于从含油地层采收油的组合物。

    Potentiated biocidal compositions and methods of use
    73.
    发明公开
    Potentiated biocidal compositions and methods of use 审中-公开
    Potenzierte biozide Zusammensetzungen und Verwendungsverfahren

    公开(公告)号:EP2457442A1

    公开(公告)日:2012-05-30

    申请号:EP12000094.8

    申请日:2009-08-26

    申请人: STEPAN COMPANY

    摘要: The present technology relates to biocidal compositions and methods that contain and utilize at least one biocidal agent and at least one potentiator system wherein the resultant combination has an enhanced biocidal efficacy. The present technology also discloses a rapid screening assay for determining biocidal compositions with enhanced efficacy, e.g., a microbial contact kill time of 5 minutes or less. Further, the present technology provides a method of determining biocidally effective concentrations of biocidal compositions comprising at least one biocidal agent and at least one potentiator system.

    摘要翻译: 本技术涉及含有和利用至少一种杀生物剂和至少一种增效剂系统的杀生物剂组合物和方法,其中所得组合具有增强的杀生物效力。 本技术还公开了用于测定具有增强功效的杀生物组合物的快速筛选测定法,例如5分钟或更短时间的微生物接触杀灭时间。 此外,本技术提供了确定杀生物组合物的杀生物有效浓度的方法,其包含至少一种杀生物剂和至少一种增效剂系统。