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1. 发明申请

WO2010082113A3 PROVISION OF VISCOUS COMPOSITIONS BELOW GROUND 审中-公开
标题翻译：在地下提供粘性组合物
公开(公告)号：WO2010082113A3
公开(公告)日：2010-11-18
申请号：PCT/IB2010000045
申请日：2010-01-12
申请人： SCHLUMBERGER TECHNOLOGY BV , SCHLUMBERGER HOLDINGS , SCHLUMBERGER CA LTD , SCHLUMBERGER SERVICES PETROL , PRAD RES & DEV LTD , TURNER MARK , TUSTIN GARY , VATRY CHRISTELLE , SULLIVAN PHILIP
发明人： TURNER MARK , TUSTIN GARY , VATRY CHRISTELLE , SULLIVAN PHILIP
IPC分类号： E21B43/16 , E21B43/26 , E21B43/267
CPC分类号： C09K8/685 , C09K8/40 , C09K8/512 , C09K8/516 , C09K8/52 , C09K8/5756 , C09K8/602 , C09K8/70 , C09K8/887
摘要： A method of providing a viscous emulsion at a subterranean location accessible via a wellbore, begins by providing an aqueous/aqueous emulsion comprising two aqueous solutions which, at surface temperature and pressure, are able to co-exist as separate aqueous phases in contact with each other. The two phases contain respective solutes which are sufficiently incompatible that they cause phase separation. The dispersed phase is rich in one solute, which may be a thickening polymer, while continuous phase is rich in a second solute, which may comprise surfactant. A hydrophobic liquid is dispersed in this emulsion to become the dispersed phase of a viscous emulsion whose continuous phase is provided by the aqueous/aqueous emulsion. The hydrophobic liquid and the aqueous/aqueous emulsion may be pumped separately down the wellbore to the subterranean location, and allowed to mix there so as to form the viscous emulsion at the subterranean location. On mixing, surfactant from the aqueous/aqueous emulsion may migrate to the oil/water interface, allowing the aqueous phases to become one phase with the result that the emulsion is further thickened by any thickening polymer in its composition. Even more thickening can be achieved by crosslinking the thickening polymer.
摘要翻译：一种在地下位置提供经由井筒的粘性乳液的方法开始于提供包含两种水溶液的水性/水性乳液，所述水性溶液在表面温度和压力下能够以分离的水相共存并与其他。这两个阶段含有各自的溶质，这些溶质足够不相容，导致相分离。分散相富含一种溶质，其可以是增稠聚合物，而连续相富含第二溶质，其可以包含表面活性剂。将疏水性液体分散在该乳液中成为其连续相由水性/水性乳液提供的粘稠乳液的分散相。可以将疏水性液体和水性/水性乳液分别沿着井眼泵送到地下位置，并允许在那里混合，从而在地下位置形成粘性乳液。在混合时，来自水性/水性乳液的表面活性剂可迁移到油/水界面，使水相成为一相，结果乳液进一步被其组合物中的任何增稠聚合物增稠。通过交联增稠聚合物可以获得更多的增稠。

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