Study On Sedimentary And Reservoir Characteristics Of Bayanhushu Sag

Bayanhushu sag located in the southwest side of Hailar Basin, and is one of Hailar Basin found very promising exploration and development after the Wuerxun sag and Beier sag. After years of exploration and development, less the total number of exploratory wells. Development is also not comprehensive enough, and geological data are not comprehensive enough. This greatly restricts the deployment of oil and gas exploration work in the area. So improved the basic geological information of Bayanhushu sag is current urgent problem. This article is based on previous studies, petroleum geology, sedimentology and seismic exploration principle as the basis of theoretical guidance, combined with practical field geology investigation data, seismic logging data to make a systematic analysis and research on Sequence characteristics Bayanhushu sag, sedimentary characteristics and reservoir characteristics.Through a comprehensive analysis of sedimentary facies development in this area are:volcanic facies, fan delta, delta, shallow lake facies and semi-deep lake-deep lake facies. Through a comprehensive analysis of geological phase,logging phase and seismic facies, compilation of sedimentary facies main target segment, figure out the sedimentary evolution and flat sedimentary systems distribution of Bayanhushu sag. Based on the characteristics of clastic rocks, reservoir space type, pore structure characteristics analysis, the reservoir properties and reservoir properties of the factors that affect the region analyzed, combined with solid drilling petrophysical analysis, clear favorable reservoir sequence.