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《World Well Logging Technology》 2018-03
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Sedimentary facies of the Chang 6 sedimentary facies in Huaiziping oil region of Ansai Oilfield and its controlling effect

Li Peng;  
Huaziping area of Chang 6 reservoir is the main producing area of Ansai Erdos basin. to the next exploration and development deepening,breakthrough the reservoir heterogeneity constraints, it is necessary for the main oil layer sedimentary facies in fine description. Digital processing through observation and logging data in the study area of the core, based on the analysis of reservoir lithology, sedimentary structure and grain size distribution characteristics, It is concluded that the sand body of underwater channel sand body is deposited in the 6 phase of delta front. further subdivided into underwater distributary channel, mouth bar, underwater crevasse splay underwater distributary interchannel, underwater natural levee and front sheet sand, six kinds of sedimentary microfacies. On the basis of the analysis of sedimentary facies, the main controlling factors of reservoir formation are analyzed,which provide scientific basis for the prediction of favorable oil area and the direction of the next exploration.
【Fund】: 西北大学研究生自主创新资助项目(YZZ17198)
【CateGory Index】: P618.13
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