公开(公告)号：US20160186043A1

公开(公告)日：2016-06-30

申请号：US15060642

申请日：2016-03-04

Applicant: SHELL OIL COMPANY

Inventor： Kirk Herbert RANEY ,  Jasper Roelf SMIT ,  Julian Richard BARNES

IPC: C09K8/584 ,  E21B43/16

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。