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鄂西下寒武统牛蹄塘组页岩孔隙结构特征及影响因素

何庆 何生 董田 翟刚毅 王亿 万阔

何庆, 何生, 董田, 翟刚毅, 王亿, 万阔. 鄂西下寒武统牛蹄塘组页岩孔隙结构特征及影响因素[J]. 石油实验地质, 2019, 41(4): 530-539. doi: 10.11781/sysydz201904530
引用本文: 何庆, 何生, 董田, 翟刚毅, 王亿, 万阔. 鄂西下寒武统牛蹄塘组页岩孔隙结构特征及影响因素[J]. 石油实验地质, 2019, 41(4): 530-539. doi: 10.11781/sysydz201904530
HE Qing, HE Sheng, DONG Tian, ZHAI Gangyi, WANG Yi, WAN Kuo. Pore structure characteristics and controls of Lower Cambrian Niutitang Formation, western Hubei Province[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2019, 41(4): 530-539. doi: 10.11781/sysydz201904530
Citation: HE Qing, HE Sheng, DONG Tian, ZHAI Gangyi, WANG Yi, WAN Kuo. Pore structure characteristics and controls of Lower Cambrian Niutitang Formation, western Hubei Province[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2019, 41(4): 530-539. doi: 10.11781/sysydz201904530

鄂西下寒武统牛蹄塘组页岩孔隙结构特征及影响因素

doi: 10.11781/sysydz201904530
基金项目: 

国家"十三五"科技重大专项(2016ZX05034-002-003)、国家基础地质调查项目(12120114046901,DD20160185)和中国地质大学(武汉)构造与油气资源教育部重点实验室开放课题基金(TPR-2018-15)联合资助。

详细信息
    作者简介:

    何庆(1993-),男,硕士在读,从事非常规油气地质研究。E-mail:qinghe@cug.edu.cn。

    通讯作者:

    董田(1987-),男,博士生导师,教授,从事非常规油气、油气地球化学及成藏等领域的教学和研究。E-mail:dongtian@cug.edu.cn。

  • 中图分类号: TE122.23

Pore structure characteristics and controls of Lower Cambrian Niutitang Formation, western Hubei Province

  • 摘要: 利用低温CO2和N2吸附测试以及场发射-扫描电镜观察、有机碳(TOC)含量测定、X衍射矿物成分分析,对鄂西地区下寒武统牛蹄塘组页岩储层的孔隙结构特征及不同岩相页岩的孔隙发育影响因素进行了研究和探讨。鄂西地区牛蹄塘组页岩的有机碳含量较高,孔隙类型以有机孔和粒内孔为主,且孔隙形态较为复杂;页岩的矿物组分主要以石英和黏土矿物为主。CO2和N2吸附实验显示,页岩孔径分布呈多峰型,介孔多数分布在2~25 nm;页岩的孔隙体积和比表面积主要由微孔和介孔提供。页岩按岩相可分为硅质页岩、混合质页岩和泥质页岩。不同岩相页岩的孔隙发育受TOC和矿物组分的控制机制不同,硅质页岩的孔隙结构主要受TOC和生物硅质含量的影响;混合质页岩的孔隙结构主要受TOC和黏土矿物含量的影响。

     

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  • 收稿日期:  2018-11-26
  • 修回日期:  2019-06-12
  • 刊出日期:  2019-07-28

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