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地震、地质相结合,利用高精度三维地震储层反演技术和储层地质评价技术,对大民屯凹陷西侧中南段古近系沙四段低渗透储层特征进行了系统分析,确定了储层的产状、岩石学特征、物性特征及微观特征等。分析认为该套储层为中孔低渗透、低孔超低渗透储层,针对微裂缝的存在,并结合油层改造措施,使这套储层仍具有较大的勘探和开发价值。研究内容对指导该区的下一步勘探以及同类储层的含油气评价都具有一定的指导和借鉴作用。
Earthquakes and geology, the characteristics of low-permeability reservoirs in Es4 of Shahejie Formation of Paleogene in the middle-south section of Damintun Depression are systematically analyzed using high-resolution 3D seismic reservoir inversion technology and reservoir geological evaluation techniques. The occurrence of reservoirs, petrological characteristics, physical properties and microscopic features. It is considered that the reservoir is a medium-porosity, low-permeability and low-porosity ultra-low permeability reservoir. In view of the existence of micro-fractures, combining with the measures of reservoir modification, the reservoir is still of great exploration and development value. The content of the study has some guidance and reference for guiding the next exploration in this area and the evaluation of the hydrocarbon in the same reservoirs.