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《Henan Science》 2018-08
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Sedimentary Facies Characteristics and Its Effect on Single Well Production:An example of Baikouquan Formation,Ma18 Block in Mahu Sag

LU Zhiyuan;MA Shizhong;FEI Fanxu;ZHU Jian;ZHOU Heng;ZHANG Fang;School of Geosciences,Northeast Petroleum University;Research Institute of Exploration and Development,Xinjiang Oilfield Company,Petro China;  
The Triassic Baikouquan formation of Ma18 block is important layer for horizontal well exploration anddeployment. Using core,well logging and seismic data,on the basis of thorough understanding of sedimentarymicrofacies,the sedimentary facies evolution characteristics and the influence of different sedimentary microfacieson horizontal well productivity were analyzed. The results show that under the sedimentary environment of laketransgression,the sedimentary microfacies,such as subsea river channel,subsea bank sand body,far sand dam andmudstone mainly distributed in the study area. The subsea river channel is mainly reservoirs space in Ma18 block.River channel sandy has the sedimentary evolution of strong progradational-aggradation to weak progradation-aggradation and then to retrogradation. Sedimentary microfacies have the continuing and big influence on horizontalwell productivity. Subsea river channel reservoir is superior to other sedimentary microfacies,first class subsea banksandy reservoir followed. The research provides a reference for later horizontal well deployment and perforationdevelopment.
【Fund】: 国家自然科学基金(41272153)
【CateGory Index】: TE328
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