2008•Inner Mongolia Petrochemical IndustryRequires access
Sedimentary Facies of the Qingshankou Formation And the Yaojia Formation,Taikang Area,Songliao Basin
Haibo Wu
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Abstract
The types of sedimentary facies and sedimentary characteristics in the Qingshankou Formation and Yaojia Formation in the Taikang area are systematically analyzed.Theresults show thatQingshankou Formation ismainly composed of lacustrine and delta facies.Our data show that the Yaojia For-mation is characterized mainly by deltaic facies.There are mainly 3 types of sandstonebodies reservoirs inQingshankou Formation.They are mouth bar sandstone-body,distal bar sandstone-body and lacustrine sandstone-body in turn.There are mainly three types of sandstone reservoirs in the Yaojia Formation.They are branchriver sandstone-body,subaqueous branch river sandstone-body and mouth bar sandstone-body.Analysis of the hydrocarbon significance of the different sandstone types shows that the lacustrine subfacies area,subaqueous branch river and mouth bar microfacies are the hydrocarbon accumulation facies.Thus,they should be the targets of future oil exploration.