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《Journal of Chengdu University of Technology(Science & Technology Edition)》 2017-01
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Application of streamline numerical simulation method to study of remaining oil distribution in high water-cut stage oilfield

TAN Heqing;FU Qiang;LI Linxiang;CUI Wenfu;HUANG Shaoxiong;GUAN Jingtao;LI Xiangtong;CHENG Shixing;Gudong Oil Production Plant Shengli Oilfield Company of SINOPEC;School of Ocean and Earth Science,Tongji University;Dongsheng Company Shengli Oilfield of SINOPEC;  
According to the geologic and developmental features of the Ng6~(3+4) of Neogene Guantao Formation in western No.7district in Gudong Oilfield,one experimental zone in Ng6~(3+4) unit is used to study the distribution of remaining oil in high water cut stage oilfield.The history matching of the reserves,pressure,moisture content and single drilling well water cut in the experimental zone produces a fine 3D geological model and parameters mode of less than 5% errors for 85% singledrilling wells. With the help of streamline numerical simulation technique,it obtains the characteristics of fluid migration under the condition of dense well pattern in high water-cut stage and divides remaining oil distribution patterns.It shows that large channel and high permeability zone are formed in the underground reservoir and the fluid migrates mostly along the high permeability zone.At the same time,oil displacement efficiency decreases obviously.The remaining oil distribution iscontrolled by sedimentary facies,sedimentary rhythm intraformational heterogeneity and drilling well network,the remaining oil occurs in the top of micro-structures,low permeable section in the plane and mainly concentrates on the top of the positive rhythm in the thick oil layer.
【Fund】: 国家科技重大专项(2011ZX05011-002)
【CateGory Index】: TE327
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【Citations】
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【Co-citations】
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1 CHEN Wenlin;Exploration and Development Research Institute of Daqing Oilfield Company Ltd., PetroChina;;Study of Distribution and Potentiality Exploiting of Microscosmic Residual Oil in Strong Water-washing Layer after Polymer Flooding[J];海洋石油;2017-04
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