渤南洼陷沙三下亚段泥页岩储层宏观非均质性分析

Research on macro heterogeneity of mud stone and shale reservoir in lower section of Es3 in Bonan subsag

目前国内外对于泥页岩储层非均质性的研究才刚刚起步,相关理论还不成熟。在详细调研国内外泥页岩储层非均质性研究进展的基础上,结合渤南洼陷地质资料,从宏观方面分析沙三下亚段泥页岩储层非均质性。宏观非均质性包括平面(TOC、Ro)、垂向(裂缝),主要受区域性的构造演化、沉积环境、成岩作用和气候变化影响。综合研究认为,渤南洼陷沙三下亚段泥页岩储层宏观非均质性较强。

At present, the research on the heterogeneity of mud stone and shale reservoirs has just started, and the related theories are not mature. Based on the detailed investigation of research programs on mud stone and shale reservoir heterogeneity at home and abroad, combining with the geological data of Bonan subsag, the author studied the mud stone and shale reservoir heterogeneity of the lower sec- tion of Es3 ： macro heterogeneity. Macro heterogeneity includes plane （ TOC, Ro ）, vertical （ fracture ）, this is mainly affected by regional tectonic evolution, sedimentary environment, diagenesis and climate change. The comprehensive evaluation showed that mud stone and shale reservoir heterogeneity of the lower section of Es3 in Bonan subsag：maero heterogeneity is strong.