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岩石可压裂性分形描述方法初探

DOI: 10.6052/1000-0879-14-025

Keywords: 可压裂性,多参数评价,分形维数,裂缝面密度,抗压强度

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Abstract:

岩石可压裂性的定量评价是非常规油气资源开采中一个重要且复杂的问题,利用已有岩心实验数据,考虑岩石的岩性及压裂裂隙的分形特征,建立了岩石压裂裂隙的分维数、岩石抗压强度和裂隙面密度之间的定量关系,并根据所采岩心,利用自行开发的软件计算出其压裂后分形维数,验证了裂隙越复杂,分形维数越大.提出采用压裂裂隙的分维数来表征岩石的可压裂性,为定量分析和评价岩石可压裂性与储层开采价值提供了一个新的思路.

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