ENHANCED OIL RECOVERY USING CARBOXYLATE GROUP CONTAINING SURFACTANTS
    2.
    发明申请
    ENHANCED OIL RECOVERY USING CARBOXYLATE GROUP CONTAINING SURFACTANTS 审中-公开
    使用含有表面活性剂的羧酸酯基团的增强油回收

    公开(公告)号:US20160186043A1

    公开(公告)日:2016-06-30

    申请号:US15060642

    申请日:2016-03-04

    CPC classification number: C09K8/584

    Abstract: The invention relates to a method of treating a hydrocarbon containing formation, comprising the following steps: a) providing a composition comprising a surfactant to at least a portion of the hydrocarbon containing formation, wherein the surfactant is a compound of the formula (I) R—O—[R′—O]x—X wherein R is a hydrocarbyl group, R′—O is an alkylene oxide group, x is the number of alkylene oxide groups R′—O, and X is a group comprising a carboxylate moiety; b) allowing the surfactant from the composition to interact with the hydrocarbons in the hydrocarbon containing formation; c) recovering from the hydrocarbon containing formation an emulsion comprising hydrocarbons, water and the surfactant; and d) adding an acid to the emulsion thus recovered.

    Abstract translation: 本发明涉及一种处理含烃地层的方法,包括以下步骤:a)向至少部分含烃地层提供包含表面活性剂的组合物,其中表面活性剂是式(I)化合物R -O- [R'-O] x-X其中R是烃基,R'-O是烯化氧基团,x是氧化烯基团R'-O的数目,X是包含羧酸盐的基团 部分; b)允许来自组合物的表面活性剂与含烃地层中的烃相互作用; c)从含烃地层中回收包含烃,水和表面活性剂的乳液; 和d)向如此回收的乳液中加入酸。

    METHOD AND COMPOSITION FOR ENHANCED HYDROCARBONS RECOVERY
    3.
    发明申请
    METHOD AND COMPOSITION FOR ENHANCED HYDROCARBONS RECOVERY 审中-公开
    增强烃回收方法与组合

    公开(公告)号:US20130296201A1

    公开(公告)日:2013-11-07

    申请号:US13937317

    申请日:2013-07-09

    CPC classification number: C09K8/58 C09K8/584

    Abstract: An injectable fluid for treating a hydrocarbon containing formation is described. The injectable fluid includes ((i) when the salinity of the brine is from about 2 wt % to about 4 wt %, a composition that comprises a blend of a C20-24 internal olefin sulfonate and a C24-28 internal olefin sulfonate wherein the weight ratio of the C20-24 internal olefin sulfonate to the C24-28 internal olefin sulfonate is from about 90:10 to about 70:30 and (ii) when the salinity of the brine is greater than about 4 wt % up to about 13 wt %, a composition comprises a blend of a C20-24 internal olefin sulfonate and a C15-18 internal olefin sulfonate wherein the weight ratio of the C20-24 internal olefin sulfonate to the C15-18 internal olefin sulfonate is from about 90:10 to about 70:30.

    Abstract translation: 描述了用于处理含烃地层的可注射流体。 可注射流体包括((i)当盐水的盐度为约2重量%至约4重量%时,包含C20-24内烯烃磺酸盐和C24-28内烯烃磺酸盐的共混物的组合物,其中 C 20-24内烯烃磺酸盐与C 24-28内烯烃磺酸盐的重量比为约90:10至约70:30,和(ii)当盐水的盐度大于约4重量%至约13 wt%,组合物包含C20-24内烯烃磺酸盐和C15-18内烯烃磺酸盐的共混物,其中C20-24内烯烃磺酸盐与C15-18内烯烃磺酸盐的重量比为约90:10 至70:30左右。

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