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    • 6. 发明申请
    • FAR FIELD DIVERSION TECHNIQUE FOR TREATING SUBTERRANEAN FORMATION
    • 用于处理下层形成的现场分流技术
    • WO2011154712A1
    • 2011-12-15
    • PCT/GB2011/000885
    • 2011-06-13
    • HALLIBURTON ENERGY SERVICES, INC.TODD, Bradley, L.HEATH, Stanley J.FLEMING, T. JeffCURTIS, Philip Anthony
    • TODD, Bradley, L.HEATH, Stanley J.FLEMING, T. JeffCURTIS, Philip Anthony
    • C09K8/82C09K8/84C09K8/502C09K8/504C09K8/506
    • C09K8/68C09K8/502C09K8/5045C09K8/506C09K8/725C09K8/82C09K8/845
    • This invention relates to an aqueous-swellable and degradable diverting system and the use of the system in treating a subterranean formation penetrated by a wellbore. The diverting system comprises a carrier fluid and an aqueous-swellable particle that does not swell or does not swell substantially when placed in contact with the carrier fluid. The carrier fluid is capable of carrying and placing the aqueous-swellable particle into a stimulation network substantially distanced from a wellbore. The carrier fluid may be a non-aqueous fluid, or when the average size of the aqueous-swellable particle is sufficient large, the carrier fluid may also be an aqueous fluid. Exposure of the diverting composition to sufficient amount of aqueous fluid swells the particle, bridges a desired portion of the stimulation network and then dissolves at least a portion of the diverting composition. The diverting techniques of the invention allow for treatment in a subterranean formation to be diverted to a previously untreated portion of the formation, in particular a portion of the formation that is significantly distanced from the wellbore.
    • 本发明涉及一种水溶胀性和可降解的转移系统,以及该系统用于处理井眼渗透的地下地层的用途。 转移系统包括载体流体和水溶胀性颗粒,当与载体流体接触时,其不膨胀或不膨胀。 载体流体能够携带并将水溶胀性颗粒置于基本上远离井眼的刺激网络中。 载体流体可以是非水性流体,或者当水溶胀性颗粒的平均尺寸足够大时,载体流体也可以是含水流体。 转移组合物暴露于足够量的水性溶液使颗粒膨胀,桥接刺激网络的期望部分,然后溶解转移组合物的至少一部分。 本发明的转向技术允许在地下地层中的处理被转移到地层的先前未处理的部分,特别是地层的远离井筒的部分。