T油田F油层属于干旱气候条件下浅水湖盆中一套特殊类型的河流-三角洲沉积,天然裂缝发育,储层物性较差,为特低渗透裂缝性储层。由于储层非均质性和裂缝影响,目前含水上升快,产量递减快,裂缝反向水淹,层间差异大,层间和平面矛盾突出。通过开展常规测井曲线识别储层裂缝方法的研究,搞清了储层的裂缝发育状况,裂缝发育程度向定量化方向迈进了一步,为搞清储层动用状况和剩余油分布提供技术支撑。 T oilfield F reservoir belongs to a special type of stream-delta deposition in shallow water lake basin under arid climatic conditions. Its natural fractures are developed with poor reservoir physical properties and are ultra-low permeability fractured reservoirs. Owing to the heterogeneity of reservoir and the influence of cracks, the water content increases rapidly at present, and the output decreases rapidly, the water inrush of the fractures is reversed, the difference between layers is large, and the contradiction between layers and planes is outstanding. Through the study of conventional logging curves to identify reservoir fractures, the development status of fractures in reservoirs has been clarified. The degree of fracture development has taken one step in the direction of quantification, providing technical support for clarifying reservoir utilization status and remaining oil distribution.