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海陆过渡相页岩气储层孔隙特征及主控因素分析——以鄂尔多斯盆地上古生界为例

赵可英 郭少斌

赵可英, 郭少斌. 海陆过渡相页岩气储层孔隙特征及主控因素分析——以鄂尔多斯盆地上古生界为例[J]. 石油实验地质, 2015, 37(2): 141-149. doi: 10.11781/sysydz201502141
引用本文: 赵可英, 郭少斌. 海陆过渡相页岩气储层孔隙特征及主控因素分析——以鄂尔多斯盆地上古生界为例[J]. 石油实验地质, 2015, 37(2): 141-149. doi: 10.11781/sysydz201502141
Zhao Keying, Guo Shaobin. Characteristics and main controlling factors of shale gas reservoirs in transitional facies: A case study of Upper Paleozoic in Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2015, 37(2): 141-149. doi: 10.11781/sysydz201502141
Citation: Zhao Keying, Guo Shaobin. Characteristics and main controlling factors of shale gas reservoirs in transitional facies: A case study of Upper Paleozoic in Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2015, 37(2): 141-149. doi: 10.11781/sysydz201502141

海陆过渡相页岩气储层孔隙特征及主控因素分析——以鄂尔多斯盆地上古生界为例

doi: 10.11781/sysydz201502141
基金项目: 国土资源部2012年度"鄂尔多斯盆地上古生界页岩气资源潜力调查评价与选区"专项(2009QYXQ15-07-05)资助。
详细信息
    作者简介:

    赵可英(1984—),女,博士研究生,助理工程师,研究方向为石油地质。E-mail:zhaokeyingdy@163.com。

    通讯作者:

    郭少斌(1962—),男,教授,博士生导师,从事层序地层学、储层评价和油气资源评价方面的教学和科研工作。E-mail:guosb58@126.com。

  • 中图分类号: TE122.2+3

Characteristics and main controlling factors of shale gas reservoirs in transitional facies: A case study of Upper Paleozoic in Ordos Basin

  • 摘要: 泥页岩中的微孔隙和微裂缝是页岩气的主要储集空间和渗流通道,孔隙和裂缝的发育程度关系到泥页岩中含气量的多少。为了更好地研究鄂尔多斯盆地上古生界泥页岩储层,将储集空间类型分为纳米级孔隙、微米级孔隙和微裂缝。运用扫描电镜、氩离子抛光与核磁共振测试技术,对纳米级孔隙、微米级孔隙和微裂缝发育特征分别进行定量表征,并结合有机碳含量、有机质显微组分及成熟度、X射线全岩衍射和黏土矿物等测试数据,对不同孔隙发育特征的主控因素进行分析。分析认为:(1)纳米级孔隙平均孔径分布在17.13~67.65 nm,平均面孔率分布于5.75%~9.37%;微米级孔隙孔径平均值分布范围3.17~5.61 μm,平均面孔率分布范围10.2%~19.32%;微裂缝百分数在0.36%~0.72%。(2)有机碳含量、有机质成熟度和伊蒙混层含量对有机质纳米级孔隙发育有促进作用,方解石含量对其则具有抑制作用;石英含量和伊利石含量对泥页岩微米级孔隙发育具促进作用,碳酸盐含量和埋藏深度对泥页岩微米级孔隙具有抑制作用;石英含量、有机质成熟度和总有机碳含量对微裂缝发育有促进作用,碳酸盐含量对其则具有抑制作用。

     

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出版历程
  • 收稿日期:  2014-08-07
  • 修回日期:  2015-01-10
  • 刊出日期:  2015-03-28

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