Lithologic Reservoirs ›› 2017, Vol. 29 ›› Issue (1): 124-129.doi: 10.3969/j.issn.1673-8926.2017.01.016

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Application of integrated reservoir classification method to the quantitative characterization of heterogeneity reservoir

YANG Xipu, YANG Xiaoli, LIU Jun, FANG Lei, ZOU Jingyun   

  1. CNOOC Research Institute, Beijing 100028, China
  • Received:2016-08-20 Revised:2016-10-12 Online:2017-01-21 Published:2017-01-21

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Abstract: In order to carry out the fine classification and 3D quantitative characterization of strong heterogeneity reservoir in H oilfield which lies in Albert Basin,the East African Rift,the heterogeneity reservoir classification was studied based on 36.5 m cores and assay data of 399 samples,by analyzing physical properties,thin section, scanning electron microscope and capillary pressure. The result shows that reservoirs were divided into four types according to lithology,properties,pore structure and seepage capacity. The key parameters of shale content and density were selected from logging data based on the reservoir classification result and the relationship of lithology- electrical log. The reservoir rock types were classified on the wells with the parameters. Then the reservoir geologic model was established by the parameters of flow zone indicator and pore throat radius. And finally the quantitative reservoir characterization was carried out,which lays the foundation for development programs.

Key words: coalbed methane, development geological unit, coal body structure, desorption pressure, ground stress, Zhengzhuang block, qinshui Basin

CLC Number: 

  • TE344
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