摘要：【中文】本发明涉及一种致密砂岩油气藏储层裂缝的识别方法，该识别方法包括：1)建立储层基块深感应电导率和孔隙度、泥质含量之间关系的综合表现形式；2)获取单井待识别井段砂岩储层段各深度采样点对应的的泥质含量、孔隙度和深度感应电导率，在同一套砂岩储层段中采用数据拟合的方法确定综合表现形式中的待定参数，确定出该套砂岩储层段各深度采样点对应的基块深感应电导率；3)比较同一套砂岩储层段各深度采样点对应的深感应电导率曲线的测井响应特征值和基块深感应电导率的大小，当其中某段深感应电导率大于基块深感应电导率时，则判断该段为裂缝发育段。本发明的识别方法能够准确、可靠的识别出致密砂岩油气藏储层裂缝发育层段。 【EN】The invention relates to a method for identifying reservoir fractures of a tight sandstone oil and gas reservoir, which comprises the following steps: 1) establishing a comprehensive expression form of the relationship between the deep induction conductivity of the reservoir foundation block and the porosity and the argillaceous content; 2) obtaining the shale content, the porosity and the depth induction conductivity corresponding to each depth sampling point of a sandstone storage interval to be identified in a single well, determining undetermined parameters in a comprehensive expression form in the same sandstone storage interval by adopting a data fitting method, and determining the foundation block deep induction conductivity corresponding to each depth sampling point of the sandstone storage interval; 3) and comparing the logging response characteristic value of the deep induction conductivity curve corresponding to each deep sampling point of the same sandstone storage layer section with the magnitude of the foundation block deep induction conductivity, and judging that a certain section is a crack development section when the deep induction conductivity of the section is greater than the foundation block deep induction conductivity. The identification method can accurately and reliably identify the reservoir fracture development interval of the tight sandstone oil and gas reservoir.