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    • 1. 发明申请
    • METHOD FOR HYDRAULIC FRACTURING OF SUBTERRANEAN FORMATION
    • US20090044945A1
    • 2009-02-19
    • US12162462
    • 2006-01-27
    • Dean M. WillbergMatthew J. MillerMarc Jean ThiercelinIvan Vitalievich Kosarev
    • Dean M. WillbergMatthew J. MillerMarc Jean ThiercelinIvan Vitalievich Kosarev
    • E21B43/26
    • C09K8/706C09K8/80E21B43/267Y10S507/924
    • The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fracture conductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage that involves injection into a borehole of fracturing fluid containing thickeners to create a fracture in the formation; and a second stage that involves periodic introduction of proppant into the injected fracturing fluid to supply the proppant into a created fracture, to form proppant clusters within the fracture to prevent fracture closure and channels for flowing formation fluids between the clusters, wherein the second stage or its sub-stages involve additional introduction of either a reinforcing or consolidation material or both, thus increasing the strength of the proppant clusters formed into the fracture fluid. Another method comprises: a first stage that involves injection of said fracturing fluid into a borehole, and a second stage that involves introduction of proppant into the injected fracturing fluid and further, involving periodic introduction of an agent into the fracturing fluid to provide formation of proppant clusters in the created fracture and channels for flowing formation fluids. Still another method comprises: a first stage that involves injection of a fracturing fluid into a borehole; a second stage that involves continuous introduction of a proppant into the injected fracturing fluid, and a third stage that involves injection of a lower-viscosity, in comparison with fracturing, fluid into the fracturing fluid, the lower-viscosity fluid, owing to the difference in viscosity compared to the fracturing fluid, penetrating into the fracturing fluid in the form of intrusions that divide the proppant into discrete clusters to form channels between them through which formation fluids to pass.
    • 4. 发明授权
    • Method for hydraulic fracturing of subterranean formation
    • 地下水力压裂方法
    • US08061424B2
    • 2011-11-22
    • US12162462
    • 2006-01-27
    • Dean M. WillbergMatthew J. MillerMarc Jean ThiercelinIvan Vitalievich Kosarev
    • Dean M. WillbergMatthew J. MillerMarc Jean ThiercelinIvan Vitalievich Kosarev
    • E21B43/267
    • C09K8/706C09K8/80E21B43/267Y10S507/924
    • The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fracturcconductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage that involves injection into a borehole of fracturing fluid containing thickeners to create a fracture in the formation; and a second stage that involves periodic introduction of proppant into the injected fracturing fluid to supply the proppant into a created fracture, to form proppant clusters within the fracture to prevent fracture closure and channels for flowing formation fluids between the clusters, wherein the second stage or its sub-stages involve additional introduction of either a reinforcing or consolidation material or both, thus increasing the strength of the proppant clusters formed into the fracture fluid.
    • 本发明提供了经济有效的水力压裂地下地层的方法,其确保了水力分解导电性的改善,因为在其整个长度上形成均匀地放置在裂缝中的强支撑剂簇。 这些方法之一包括:第一阶段,其涉及向包含增稠剂的压裂流体的井眼中注入以在地层中产生断裂的第一阶段; 以及第二阶段,其涉及将支撑剂定期引入注入的压裂流体中,以将支撑剂供应到所产生的裂缝中,以在裂缝内形成支撑剂簇以防止断裂闭合,以及用于在地层之间流动地层流体的通道,其中第二阶段或 其子阶段包括另外引入增强或固结材料或两者,从而增加形成在断裂流体中的支撑剂团簇的强度。