多层压裂流量分配数值模拟方法研究

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摘要常规的水力压裂设计方法，一般都假设仅有一条裂缝，对低渗透、多油层油藏一次压裂施工，往往会同时产生多条裂缝，因此，需要研究多层压裂设计方法。多层压裂设计中，对裂缝几何参数影响最主要的因素是各层流量分配。基于三维水力裂缝几何参数模型，建立了一个多层流量分配数值模型，综合考虑了炮眼磨损、地应力差、地层特性等的影响；根据建立的流量分配模型，对多层压裂设计中影响各层流量分配的一些主要因素进行了分析。研究结果，对多油层限流法压裂具有一定的指导意义。

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关键词 ：多油层, 三维裂缝, 水力压裂

Abstract：In recent years，significant developments have taken place to solve the problem of hydraulic fracture of wells. But in most cases the simultaneous hydraulic fracturing of multiple productive intervals or layers within a single well may lead to the initiation and propagation of multiple fractures. In order to account for the effect of the properties of the lays，such as contrasts in layers thickness，Young’s Modulus，fluid loss properties and perforation erosion，a numerical model is used to calculate the fluid partitioning. A numerical model of fracture is also developed to simulate the fracture vertically through layered formation in the presence of stress variations. The parameter study is conducted with the model to evaluate the effect on fluid partitioning of the properties of the layers，such as in-situ stress，rock fracture toughness，fluid loss properties and so on.

Key words： multilayered formation 3D fracture hydraulic fracturing

引用本文:

张士诚申茂和. 多层压裂流量分配数值模拟方法研究[J]. 岩石力学与工程学报, 2002, 21(S): 2154-2158.
Zhang Shicheng， Shen Maohe. NUMERICAL SIMULATION STUDIES ON FLOW RATE DISTRIBUTION IN MULTIPLE FRACTURES. , 2002, 21(S): 2154-2158.

链接本文:

https://rockmech.whrsm.ac.cn/CN/Y2002/V21/IS/2154