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根据水力压裂法对新集矿区山西组的S5、S9测孔的原地应力进行测试,研究煤储层的地应力分布规律,建立煤储层地应力与煤层埋藏深度的关系模型;通过对煤岩体内裂隙随正应力的变形研究,建立三维渗透率-地应力关系模型。为煤层气勘探与开发提供理论指导。
According to the hydraulic fracturing method, the in-situ stress of S5 and S9 boreholes in Shanxi Formation of Xinji Mine Area is tested to study the distribution rules of ground stress in coal reservoirs and establish the relationship model between the stress of coal reservoir and the depth of coal seam burial. Study on the deformation of coal and rock fracture with normal stress, and establish the relationship model between three-dimensional permeability and geostress. Provide theoretical guidance for CBM exploration and development.