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中文摘要：
通过研究砂岩储层压裂裂缝起裂、扩展规律以及期望的裂缝形态,提出了砂岩储层可压裂性具体含义.分析KGD模型中各因素对压裂裂缝的影响规律,借助成熟的有限元方法对上述规律进行验证及补充,建立了砂岩储层可压裂性与储层岩石弹性模量和最小水平地应力之间的关系,绘制了可压裂性指标的变化规律,即弹性模量越高,最小水平地应力越小,砂岩储层的可压裂性越高.根据地震资料可以绘制砂岩储层的三维可压裂性分布图,可以为压裂选井选层提供参考.
英文摘要：
The meaning of fracability for sandstone reservoir was proposed based on a study.The study focuses on fracturing fracturure initiation,extension and the desired fracture morphology.The paper analyzes the influence rule of various factors on fracturing fractures in KGD model.The rule is then verified and supplemented by sophisticated finite element method.The relationship between sandstone reservoir fracability and the reservoir rock elastic modulus and minimum horizontal stress is ensured while drawing the changing rules for fracability indexes.The larger the elastic modulus and the smaller the minimum horizontal stress is,the higher the fracability for sandstone reservoir.According to seismic data,it is able to draw the three-dimensional fracability distribution for sandstone reservoir.This provides references for well and formation selection when fracturing.
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