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INCREASING FRACTURE COMPLEXITY IN ULTRA-LOW PERMEABLE SUBTERRANEAN FORMATION USING DEGRADABLE PARTICULATE.
INCREASING FRACTURE COMPLEXITY IN ULTRA-LOW PERMEABLE SUBTERRANEAN FORMATION USING DEGRADABLE PARTICULATE.
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机译:使用可分解微粒增加超低渗透次生地层的断裂复杂度。
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摘要
A method of increasing the fracture complexity in a treatment zone of a subterranean formation is provided. The subterranean formation is characterized by having a matrix permeability less than 1.0 microDarcy (9.869233 x 10-19 m2). The method includes the step of pumping one or more fracturing fluids into a far-field region of a treatment zone of the subterranean formation at a rate and pressure above the fracture pressure of the treatment zone. A first fracturing fluid of the one or more fracturing fluids includes a first solid particulate, wherein: (a) the first solid particulate includes a particle size distribution for bridging the pore throats of a proppant pack previously formed or to be formed in the treatment zone; and (b) the first solid particulate comprises a degradable material. In an embodiment, the first solid particulate is in an insufficient amount in the first fracturing fluid to increase the packed volume fraction of any region of the proppant pack to greater than 73%. Similar methods using stepwise fracturing fluids and remedial fracturing treatments are provided.
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机译:提供了一种增加地下地层的处理区域中的裂缝复杂度的方法。地下岩层的特征在于基质渗透率小于1.0 microDarcy(9.869233 x 10-19 m2)。该方法包括以下步骤:以高于处理区的断裂压力的速率和压力将一种或多种压裂液泵入地下地层的处理区的远场区域。一种或多种压裂液中的第一压裂液包括第一固体颗粒,其中:(a)第一固体颗粒包括用于桥接先前在处理区域中形成或将要形成的支撑剂充填物的孔喉的粒度分布。 ; (b)第一固体颗粒包括可降解材料。在一个实施方案中,第一压裂液中第一固体颗粒的量不足以将支撑剂充填的任何区域的填充体积分数增加至大于73%。提供了使用逐步压裂液和补救压裂处理的类似方法。
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