唐军,魏刚,胡挺,田新,龚佳,何泽
TANG Jun,WEI Gang,HU Ting,TIAN Xin,GONG Jia,HE Ze

• 1:长江大学地球物理与石油资源学院
• 2:中国石化河南油田分公司油气勘探管理部
• 3:中国石化经纬有限公司华北测控公司

摘要(Abstract)：

陆相页岩非均质性强、岩性多变、储层表征参数多，构建融合储层品质和工程品质两类参数的页岩综合评估策略，是提高陆相页岩甜点预测准确度的有效途径。首先通过对比分析，明确泌阳凹陷湖相页岩与其他典型海相页岩的差异；然后建立考虑碳酸盐矿物导电性能的电阻率校正因子，根据岩心实验对系数K进行修正，改进总有机碳含量计算方法；接着利用有机质对密度与中子测井曲线的影响差异，建立饱和度非电法测井计算方法；最后引入层次分析法，优选反映页岩储层品质与工程品质两类甜点的7个参数，依据贡献程度、计算精确度和数据可靠性构建判断矩阵，形成页岩优势储层判别量化图版。依据该方法，能够将泌阳凹陷页岩优势储层准确识别，为后续勘探开发提供有利的岩石物理分析证据。
Continental shale has high heterogeneity, variable lithology and many reservoir characterization parameters. Constructing a comprehensive shale evaluation strategy that integrates reservoir quality and engineering quality parameters is an effective way to improve prediction accuracy of continental shale sweet spots. Firstly, through comparative analysis, differences between lacustrine shales in Biyang Sag and other typical marine shales are clarified.Then, resistivity correction factor considering electric conductivity of carbonate minerals is established and coefficient K is modified based on core experiment, improving w(TOC) calculation method. After that, non-electric logging method is established for saturation calculation based on different influence of organic matter on density and neutron. Finally, analytic hierarchy process(AHP) is introduced to select 7 parameters reflecting 2 types of sweet spots of shale reservoir quality and engineering quality, constructing a judgment matrix in aspects of contribution degree, calculation accuracy and data reliability and forming quantitative chart for identifying favorable shale reservoirs. This method supports accurately identification of dominant shale reservoirs in Biyang Sag, providing favorable petrophysical analysis evidence for subsequent exploration and development.

关键词(KeyWords)： 泌阳凹陷;页岩;甜点预测;总有机碳含量;饱和度;层次分析法
Biyang Sag;shale;sweet spot prediction;TOC;saturation;analytic hierarchy process

Abstract:

Keywords:

基金项目(Foundation): 中国高校产学研创新基金项目“岩石物理虚拟实验教学设计与实践”（2023YC0062）

作者(Author): 唐军,魏刚,胡挺,田新,龚佳,何泽
TANG Jun,WEI Gang,HU Ting,TIAN Xin,GONG Jia,HE Ze

DOI: 10.19597/J.ISSN.1000-3754.202402030

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