常规测井资料在老井页岩气储层识别中的应用Application of Traditional Well Logging Data on Old Well Shale Gas Reservoir Identification
马俯波,葛洪魁,王衍,申颍浩
摘要(Abstract)：
页岩中有机质含量的高低及富有机质页岩的厚度和规模,是制约页岩气勘探开发的重要因素。若能应用常规测井资料对已钻探老井进行页岩气潜力二次评价,对发现新的页岩气储层,进行老井挖潜意义重大。为此对常规测井资料,应用Δlg R法和多元回归拟合等多种方法,进行典型井有机质含量定量评价;同时,以电性参数及有机质含量为依据,进行目的层段含气性分析。结果表明:利用自然伽马变化量计算地层有机质含量是可行的,总趋势基本一致;应用模型计算的总含气量与实测含气量相关性好,模型精度较高。本方法可以解决页岩气勘探开发中的核心问题,对充分应用好常规测井资料,进行后续页岩气勘探开发起到积极作用。
关键词(KeyWords)： TOC;页岩气;含气量;测井解释
基金项目(Foundation):
作者(Author): 马俯波,葛洪魁,王衍,申颍浩
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