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    • 8. 发明授权
    • Dissolving filter cake
    • 溶解滤饼
    • US07066260B2
    • 2006-06-27
    • US10707022
    • 2003-11-14
    • Philip F. SullivanCurtis L. Boney
    • Philip F. SullivanCurtis L. Boney
    • E21B43/267
    • C09K8/74C09K8/52C09K8/68C09K8/703Y10S507/924
    • Methods are presented to induce a screenout during a subterranean formation fracturing or combined fracturing and gravel packing treatment having a viscoelastic surfactant-based carrier fluid by laying down a filter cake at least a portion of which is a base-soluble material, injecting proppant slurry, and causing hydrolysis and dissolution of the solid base-soluble material by adding base so that leak-off increases, the concentration of proppant in the fracture increases, and the proppant screens out. A method of gravel packing with a viscoelastic surfactant-based carrier fluid by laying down a filter cake at least a portion of which is a base-soluble material, injecting gravel, and causing hydrolysis and dissolution of the solid base-soluble material by adding base. Methods of slowing or accelerating the hydrolysis and dissolution are given, and addition of bridging-promoting materials is included.
    • 提出了一种方法,用于在地层压裂或组合压裂和砾石填充处理过程中诱导筛选,该处理具有基于粘弹性表面活性剂的载体流体,其中放置一个滤饼,其中至少一部分是碱溶性材料,注入支撑剂浆料, 并通过加入碱引起固体碱溶性物质的水解和溶解,使得泄漏增加,支撑剂在裂缝中的浓度增加,支撑剂屏蔽。 一种利用粘弹性表面活性剂的载体流体通过放置滤饼的方法,其中至少一部分为基础可溶性材料,注入砾石,并通过加入碱来引起水解和溶解固体碱溶性材料 。 给出了减缓或加速水解和溶解的方法,并且包括桥联促进材料的添加。