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SHEAR THICKENING WELL CONTROL FLUID

机译:剪切增稠油井控制液

摘要

shear thickening fluid consisting of a material which swells in water (e.g. clay)paste capable of forming rapidly with a resistance of at least 1000 pa in the aqueous solution is used, and present in a concentration sufficient to form a paste.a material comprising a hydrophobic hydrocarbon non-aqueous material and a surface active agent and a reinforcing agent.and an aqueous solution containing a water-soluble polymer and water to swell in water.the clay and the polymer solution and water are kept separated by an intermediate stage of a surface active agent is a hydrocarbon.according to a preferred mode of execution.the clay encapsulee phase of surfactant hydrocarbon (oil phase) is suspended in a continuous phase comprising a polymer in water phase; however,a suspension of clay and polymer water droplets in a separate discreet and continuous oil phase are also possible in the same way as the common composition called "emulsdouble ion, as well as systems that are semi continuous.the oil phase control can the interaction between the polymer phase and the water phase, and a clay composite material is stable, does not reagissant.who can be a pump until such time as the oil barrier is broken by the application of a sufficiently high shear force.as a result of this failure, the material is mixed and publication, providing a semi-rigid high strength paste.several problems on the control of wells such as oil or gas expulsion can be eliminated by using the composite material as described above.the material is pumped down the shaft.as a result of the application of a sufficiently high shear, such as the output of the composite through openings in the forest, shear required to rupture the envelope of oil.the clay and the polymer phase react in water, giving rise to the
机译:使用的剪切增稠液由在水中溶胀的材料(例如粘土)组成,该糊剂能够在水溶液中以至少1000 pa的电阻快速形成,并且其浓度足以形成糊剂。疏水性烃类非水材料,表面活性剂和增强剂以及含有水溶性聚合物和水的水溶液会在水中溶胀。根据优选的实施方式,表面活性剂是烃。表面活性剂烃的粘土包封相(油相)悬浮在包含聚合物的水相的连续相中。然而,粘土和聚合物水滴在分离的离散油相和连续油相中的悬浮也是可能的,其方式与称为“乳化双离子”的普通组合物以及半连续的系统相同。油相控制可以聚合物相和水相之间的相互作用以及稳定的粘土复合材料不会再粘稠,直到施加足够高的剪切力使油障破裂为止,才能成为泵。失败后,将材料混合并发布,提供半刚性的高强度糊剂。通过使用如上所述的复合材料,可以消除控制井的几个问题,例如驱油或驱气。施加足够高的剪切力的结果,例如通过森林中的开孔输出复合材料,破坏油层所需的剪切力,粘土和聚合物相反应在水中,引起

著录项

  • 公开/公告号EP0038817B1

    专利类型

  • 公开/公告日1985-05-15

    原文格式PDF

  • 申请/专利权人 EXXON RESEARCH AND ENGINEERING COMPANY;

    申请/专利号EP19800902010

  • 发明设计人 IRANI CYRUS A.;MINTZ DONALD J.;

    申请日1980-09-24

  • 分类号C08K5/01;C08K5/34;C08L23/00;E21B33/138;

  • 国家 EP

  • 入库时间 2022-08-22 08:03:32

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