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川东南志留系龙马溪组页岩储层微孔隙结构及连通性研究

刘伟新 鲍芳 俞凌杰 张文涛 张庆珍 卢龙飞 范明

刘伟新, 鲍芳, 俞凌杰, 张文涛, 张庆珍, 卢龙飞, 范明. 川东南志留系龙马溪组页岩储层微孔隙结构及连通性研究[J]. 石油实验地质, 2016, 38(4): 453-459. doi: 10.11781/sysydz201604453
引用本文: 刘伟新, 鲍芳, 俞凌杰, 张文涛, 张庆珍, 卢龙飞, 范明. 川东南志留系龙马溪组页岩储层微孔隙结构及连通性研究[J]. 石油实验地质, 2016, 38(4): 453-459. doi: 10.11781/sysydz201604453
Liu Weixin, Bao Fang, Yu Lingjie, Zhang Wentao, Zhang Qingzheng, Lu Longfei, Fan Ming. Micro-pore structure and connectivity of the Silurian Longmaxi shales, southeastern Sichuan area[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2016, 38(4): 453-459. doi: 10.11781/sysydz201604453
Citation: Liu Weixin, Bao Fang, Yu Lingjie, Zhang Wentao, Zhang Qingzheng, Lu Longfei, Fan Ming. Micro-pore structure and connectivity of the Silurian Longmaxi shales, southeastern Sichuan area[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2016, 38(4): 453-459. doi: 10.11781/sysydz201604453

川东南志留系龙马溪组页岩储层微孔隙结构及连通性研究

doi: 10.11781/sysydz201604453
基金项目: 国家自然科学基金项目(41372130)和中国石化科技部项目(P13089)资助。
详细信息
    作者简介:

    刘伟新(1965—),男,博士,高级工程师,从事储盖实验测试与研究。E-mail:liuweixin.syky@sinopec.com。

  • 中图分类号: TE122.2

Micro-pore structure and connectivity of the Silurian Longmaxi shales, southeastern Sichuan area

  • 摘要: 采用CT扫描、聚焦离子束扫描电镜、氩离子抛光—场发射扫描电镜、透射电镜等技术,对川东南志留系龙马溪组页岩进行了微孔隙结构及连通性分析,提出了4种页岩孔隙结构类型:(1)粒间微孔,存在于矿物颗粒之间,数量较少;(2)粒内微孔,分布于粒间分散有机质中及与球状黄铁矿共生的有机质中,少量见于黏土片间的微孔隙;(3)粒缘隙,存在于分散有机质颗粒及矿物颗粒周缘;(4)层(页)理缝,基本平行于页岩沉积层理较大的微裂隙。有机质纳米孔隙呈蜂窝状,呈正态分布,互相连通,孔隙直径主要在30~90 nm之间;孔隙喉道呈单曲线形,喉道宽度主要在7~20 nm之间;层(页)理缝约占页岩孔隙体积的1%~2%,是页岩的优势渗滤通道。微孔隙主要分布于有机质中,是页岩气的主要储集空间,粒缘隙形成页岩连通网络,层(页)理缝为页岩的主要渗滤通道,提出"纳米孔储集、粒缘隙连通、页理缝渗滤"的页岩气连通与流动模式。

     

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出版历程
  • 收稿日期:  2016-02-17
  • 修回日期:  2016-06-01
  • 刊出日期:  2016-07-28

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