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根据裂缝发育段的材料学特征,以常规测井资料为基础,结合相关物理学、材料力学中弹性材料变形知识及虎克定理,根据裂缝发育会导致岩石强度降低的基本理论,利用井下目的层段岩石杨氏模量的变化对裂缝发育情况进行了定量描述,同时以常规裂缝识别方法进行了验证,证明了该方法在裂缝识别描述方面的可行性。并提出应根据杨氏模量的差异有针对性地对目的层段进行改造。
According to the material characteristics of the fracture development section, based on the conventional well logging data and the related physics, the deformation knowledge of elastic materials in material mechanics and Hooke’s theorem, according to the basic theory that the fracture development will lead to the decrease of rock strength, The change of Young’s modulus of the rock segment quantitatively describes the development of the fracture, and verifies with the conventional method of fracture identification. It proves the feasibility of this method in describing the fracture identification. It is suggested that the target layer should be modified according to the difference of Young’s modulus.