赵迪斐;郭英海;任呈瑶;李艳芳;

• 1:中国矿业大学资源与地球科学学院

• 2:中国矿业大学煤层气资源与成藏过程教育部重点实验室

• 3:南京大学地球科学与工程学院

• 4:中国石化石油勘探开发研究院无锡石油地质研究所

摘要(Abstract)：

基于古交地区山西组页岩储层样品,利用场发射扫描电镜、高压压汞、低温氮吸附、X线衍射等实验,探究过渡相页岩纳米级孔隙的发育特征及影响因素。结果表明:研究区储层孔隙主要包括有机孔隙、黏土矿物孔隙、骨架矿物孔隙、微裂隙四类,以中孔为主,发育多种形貌;四类孔隙所占储集空间比例分别为22.4%、44.0%、27.2%、6.4%。过渡相页岩非均质性显著,孔隙分形分维值平均近2.7,显示非均质程度较强、空间结构复杂。孔隙孔径与总孔体积减小,比表面积增大,纳米孔及吸附点位增多;有机碳与石英质量分数增多,黏土矿物质量分数减少,孔隙发育程度增强。水进体系域下形成的凝缩层及高位体系域中的泥炭沼泽—分流间洼地、泥炭沼泽—分流间湾沉积组合是优质页岩储层发育的有利层位。

关键词(KeyWords)：过渡相页岩;纳米孔特征;孔隙结构;孔隙分类;定量评价;山西组;古交地区

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(41772130);; 国家重点基础研究发展计划(973计划)项目(2012CB214702);; 山西省煤基重点科技攻关项目(MQ201402);; 教育部重点实验室开放基金项目(2015-007);; 中国矿业大学大学生科研创新项目(CSA2018-ZK05)

作者(Author):赵迪斐;郭英海;任呈瑶;李艳芳;

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