Main Factors Controlling Hydrocarbon Accumulation Conditions of the Xujiahe Formation in Middle Segment of Western Sichuan Basin
Journal of Chongqing University of Science and Technology(2014)
Abstract
Through analyzing the relations between petroleum discoveries and distributions of the favorable sedimentary facies zones,local structures,faults and fractures,this paper studies the main factors controlling hydrocarbon accumulation in combination with statistical analysis of the relationship between formation test data and reservoir thickness,reservoir property and logging data. The results show that favorable sedimentary facies zones,local structural setting,and faults fractures are the three major factors controlling hydrocarbon accumulation in western Sichuan basin. Based on the relationship of the source,reservoir and cap rock space distribution basic petroleum geological conditions,point out the favorable direction of the next step of the exploration,local structural nose structure and fracture development belt and platform margin energetic favorable phase the band are the most favorable targets for further exploration.
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Key words
western sichuan basin,sichuan basin,hydrocarbon accumulation conditions,xujiahe formation
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