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致密油储层微观孔隙结构定量表征——以鄂尔多斯盆地新安边油田长7储层为例

张浩 陈刚 朱玉双 党永潮 陈娟 王恒力 斯扬 白超 李雪

张浩, 陈刚, 朱玉双, 党永潮, 陈娟, 王恒力, 斯扬, 白超, 李雪. 致密油储层微观孔隙结构定量表征——以鄂尔多斯盆地新安边油田长7储层为例[J]. 石油实验地质, 2017, 39(1): 112-119. doi: 10.11781/sysydz201701112
引用本文: 张浩, 陈刚, 朱玉双, 党永潮, 陈娟, 王恒力, 斯扬, 白超, 李雪. 致密油储层微观孔隙结构定量表征——以鄂尔多斯盆地新安边油田长7储层为例[J]. 石油实验地质, 2017, 39(1): 112-119. doi: 10.11781/sysydz201701112
Zhang Hao, Chen Gang, Zhu Yushuang, Dang Yongchao, Chen Juan, Wang Hengli, Si Yang, Bai Chao, Li Xue. Quantitative characterization of microscopic pore throat structure in tight sandstone oil reservoirs:A case study of Chang7 reservoir in Xin'anbian oil field, Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2017, 39(1): 112-119. doi: 10.11781/sysydz201701112
Citation: Zhang Hao, Chen Gang, Zhu Yushuang, Dang Yongchao, Chen Juan, Wang Hengli, Si Yang, Bai Chao, Li Xue. Quantitative characterization of microscopic pore throat structure in tight sandstone oil reservoirs:A case study of Chang7 reservoir in Xin'anbian oil field, Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2017, 39(1): 112-119. doi: 10.11781/sysydz201701112

致密油储层微观孔隙结构定量表征——以鄂尔多斯盆地新安边油田长7储层为例

doi: 10.11781/sysydz201701112
基金项目: 大陆动力学国家重点实验室科技部重点专项经费(BJ14252)资助。
详细信息
    作者简介:

    张浩(1986-),男,在读博士研究生,从事油气田地质与开发研究。E-mail:605180411@qq.com。

    通讯作者:

    陈刚(1965-),男,教授,博士生导师,从事盆地构造与油气地质学研究。E-mail:chenggang@nwu.edu.cn。

  • 中图分类号: TE122.23

Quantitative characterization of microscopic pore throat structure in tight sandstone oil reservoirs:A case study of Chang7 reservoir in Xin'anbian oil field, Ordos Basin

  • 摘要: 鄂尔多斯盆地新安边油田长7致密油储层具有较好的开发潜力,由于微观孔隙结构研究的薄弱制约了致密油勘探开发进程,对后期开采具有较大影响。该文采用扫描电镜、铸体薄片、高压压汞、微纳米CT扫描等技术,对新安边油田长7致密油储层的储集空间特征及微观孔隙结构参数进行定量表征。结果表明,长7致密油储层孔隙类型主要分为三类:粒间孔、溶孔、微裂缝。研究区发育大量纳米级孔喉,其对储层的储集及渗流能力具有较大贡献。依据不同样品的排驱压力划分:排驱压力小于1 MPa时,微米尺度孔隙丰富且连通性好,孔喉形态多为粗大管状、条带状,喉道半径主要集中在100~380 nm;排驱压力介于1~3 MPa之间,局部孔隙连通性好,纳米尺度孔喉多发育于粒内溶孔,孔喉形态表现为管束状、球状,喉道半径主要分布于75~250 nm;排驱压力大于3 MPa时,大量孤立的小球状孔喉聚集,垂向连通性差,仅局部微裂缝发育区提供储集空间,喉道半径主要集中为15~75 nm。

     

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出版历程
  • 收稿日期:  2016-07-11
  • 修回日期:  2016-11-28
  • 刊出日期:  2017-01-28

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