- 专利标题： METHOD OF TREATING A PORTION OF A SUBTERRANEAN FORMATION WITH IMPROVED WATER IN OIL EMULSION
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申请号： EP19187328.0申请日： 2019-07-19
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公开(公告)号： EP3604351A1公开(公告)日： 2020-02-05
- 发明人: FAVERO, Cédrick , TAVERNIER, Bruno
- 申请人： S.P.C.M. SA
- 申请人地址： ZAC de Milieux 42160 Andrézieux Bouthéon FR
- 专利权人： S.P.C.M. SA
- 当前专利权人： S.P.C.M. SA
- 当前专利权人地址： ZAC de Milieux 42160 Andrézieux Bouthéon FR
- 代理机构： Cabinet Laurent & Charras
- 优先权： PCT/IB2018/000990 20180803
- 主分类号： C08F2/32
- IPC分类号： C08F2/32 ; C08F220/56 ; C08F2/26 ; C08F2/28 ; C08F2/30 ; C09K8/58 ; C09K8/68 ; E21B43/25 ; C09K8/72
摘要：
Method of treating a portion of subterranean formation, comprising
- providing a water in oil emulsion of a water-soluble polymer, said emulsion comprising at least an inverting agent, and at least an emulsifying agent, wherein the mass ratio R of the total amount of inverting agent to the total amount of emulsifying agent is superior to 1.2, wherein the water in oil emulsion contains from 0.5% to 6% by weight of inverting agent;
- inverting the water in oil emulsion by adding it into an aqueous fluid to form an injection fluid;
- introducing the injection fluid into portion of the subterranean formation.
- providing a water in oil emulsion of a water-soluble polymer, said emulsion comprising at least an inverting agent, and at least an emulsifying agent, wherein the mass ratio R of the total amount of inverting agent to the total amount of emulsifying agent is superior to 1.2, wherein the water in oil emulsion contains from 0.5% to 6% by weight of inverting agent;
- inverting the water in oil emulsion by adding it into an aqueous fluid to form an injection fluid;
- introducing the injection fluid into portion of the subterranean formation.
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