To recognize clearly how is distributed regular of sand body of Gaotaizi reservoir in the West slope,and guide exploitation of reservoir,the study is that according to results of analysis of lots of core samples and logging data,and combine with logging facies,to study sedimentary facies of Gao Ⅲ reservoir group in Jiangqiao area、Alaxin area and Pingyang area (from Jiangqiao area to Pingyang area) of the west slope of Songliao Basin,we have found out features and condition of growth of sedimentary facies of Gao Ⅲ reservoir group from Jiangqiao area to Pingyang area,recognizing that there are two subphases included delta front and shore-shallow lacustrine and eight sedimentary facies:shore-shallow lacustrine sand dam microfacies;shore-shallow lacustrine mixing beach microfacies;shore-shallow lacustrine mud;subaqueous distributary channel microfacies;river mouth bar microfacies;distal bar microfacies;delta front sheet sand microfacies;subaqueous interdistributary channel microfacies.F容貌Jiangqiao area to Pingyang area are controlled by qiqihaer soure and west yingtai source,sand body of delta front is relatively development;there isn’t source supplied in Alaxin area,shore-shallow lacustrine relatively developed,thickness of sand body is rather thinner.Developing sand uplift piching traps and sand lens traps.
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衣晓东. 江桥至平洋地区高Ⅲ油层组沉积微相研究[J]. 科学技术与工程, 2011, (26): . yixiaodong. Study of Sedimentary Facies of Gao Ⅲ Reservoir Group from Jiangqiao to Pingyang eara[J]. Science Technology and Engineering,2011,(26).