CONNECTIVITY OF THE JURASSIC SKELETAL SAND BODIES IN THE WEST OF CHEPAIZI UPLIFT, JUNGGAR BASIN
WU Kong-you1, LI Jing1, TAN Xin-cheng2
1. School of Geosciences and Technologies, China University of Petroleum, Qingdao 266580, Shandong Province, China; 2. South America Company, China National Oil and Gas Exploration and Development Corporation, Beijing 100083, China
Abstract：As an important component of the oil and gas transporting system, skeletal sand body controls the lateral migration and distribution of oil and gas in space. The effective connection is usually affected by the development of faults in the sand bodies as well as the microscopic heterogeneity of the sand bodies. By single well analysis for the main wells in the western area of the Chepaizi uplift in Junggar Basin, on the basis of regional stratigraphic framework and sedimentary facies, the Jurassic skeletal sand bodies are identified. With drawing of connection-well sections and planar distribution contour maps of skeletal sand bodies, the macro connectivity of the skeletal sand bodies is analyzing. Based on the connectivity research of porosity and permeability, with systematic sampling from sand bodies of each layer, the microscopic connectivity is qualitatively described. With geological statistics, the microscopic connectivity is quantitatively evaluated. Therefore, the skeletal sand bodies of Jurassic Toutunhe Formation and Badaowan Formation are comprehensively evaluated from three aspects, i.e. profile, plane and microcosmic view. The results indicate that the connectivity of skeletal sand bodies in the strata of J2t3 and J1b3 is relatively well.
吴孔友, 李菁, 谭昕程. 准噶尔盆地车排子凸起西翼侏罗系骨架砂体连通性研究[J]. 地质与资源, 2017, 26(3): 281-289.
WU Kong-you, LI Jing, TAN Xin-cheng. CONNECTIVITY OF THE JURASSIC SKELETAL SAND BODIES IN THE WEST OF CHEPAIZI UPLIFT, JUNGGAR BASIN. GEOLOGY AND RESOURCES, 2017, 26(3): 281-289.
2017, Vol. 26 
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