Characteristics and classification and evaluation of lacustrine carbonate reservoir of the fourth member of Shahejie Formation of Shaojia Sag,Jiyang Depression,Bohai Bay Basin

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  • 1.School of Geosciences,China University of Petroleum(East China),Qingdao 266580,China;
    2.Hekou Production Plant,Shengli Oil Field Corporation,Dongying 257200,China;
    3.Research Institute of CNOOC Ltd.,Shenzhen 510240,China
    4.Junma Petroleum Equipment Manufacturing Group Co.Ltd.,Dongying 257000,China

Received date: 2015-05-31

  Revised date: 2015-07-22

  Online published: 2019-09-20

Abstract

Microscopic feature of lacustrine carbonate reservoir for the fourth member of Shahejie Formation ( Es4 ) of Shaojia Sag is studied based on the core,thin sections,logging data,measured property and producing test data.An integrated classification and evaluation criterion is built to predict the favorable reservoir distribution for lacustrine carbonate reservoir.Characteristics of carbonate rocks,such as rock types,facies,reservoir space and diagenesis,control lacustrine carbonate reservoir property directly.After analyzing and evaluating these factors on the reservoir property,“A”,“B”,“C”,are graded respectively according to their contribution to rock properties.Reservoir is later classified into different petrofacies according to their evaluation result.Combined with rock properties and producing test,a classification and evaluation standard of lacustrine carbonate reservoir is established.The favorable distribution of lacustrine carbonate reservoir in the Es4 of Shaojia Sag of Bohai Bay Basin is predicted through well log data.

Cite this article

Yang Sheng-chao, Qiu Long-wei, Liu Kui-yuan, Han Xiao, Jiang Jia-cheng, Shan Bao-jie, Liu Lian-qi . Characteristics and classification and evaluation of lacustrine carbonate reservoir of the fourth member of Shahejie Formation of Shaojia Sag,Jiyang Depression,Bohai Bay Basin[J]. Natural Gas Geoscience, 2016 , 27(4) : 628 -638 . DOI: 10.11764/j.issn.1672-1926.2016.04.0628

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