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库车坳陷迪北地区致密砂岩孔喉形态特征及其对储层的影响

林潼 冉启贵 魏红兴 孙雄伟 王蓉

林潼, 冉启贵, 魏红兴, 孙雄伟, 王蓉. 库车坳陷迪北地区致密砂岩孔喉形态特征及其对储层的影响[J]. 石油实验地质, 2015, 37(6): 696-703. doi: 10.11781/sysydz201506696
引用本文: 林潼, 冉启贵, 魏红兴, 孙雄伟, 王蓉. 库车坳陷迪北地区致密砂岩孔喉形态特征及其对储层的影响[J]. 石油实验地质, 2015, 37(6): 696-703. doi: 10.11781/sysydz201506696
Lin Tong, Ran Qigui, Wei Hongxing, Sun Xiongwei, Wang Rong. Pore-throat characteristics of tight sandstones and its influence on reservoirs in Dibei area of the Kuqa Depression[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2015, 37(6): 696-703. doi: 10.11781/sysydz201506696
Citation: Lin Tong, Ran Qigui, Wei Hongxing, Sun Xiongwei, Wang Rong. Pore-throat characteristics of tight sandstones and its influence on reservoirs in Dibei area of the Kuqa Depression[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2015, 37(6): 696-703. doi: 10.11781/sysydz201506696

库车坳陷迪北地区致密砂岩孔喉形态特征及其对储层的影响

doi: 10.11781/sysydz201506696
基金项目: 国家重大科技专项"中国大型气田形成条件、富集规律及目标评价(二期)"项目(2011ZX05007)资助。
详细信息
    作者简介:

    林潼(1980—),男,工程师,从事储层分析与油气成藏研究。E-mail:lintong1980@163.com

  • 中图分类号: TE122.2

Pore-throat characteristics of tight sandstones and its influence on reservoirs in Dibei area of the Kuqa Depression

  • 摘要: 通过铸体薄片、扫描电镜、激光共聚焦显微镜、微纳米CT扫描等直观分析手段,对库车坳陷迪北地区致密砂岩气储层中的孔喉微观形态特征开展了系统研究。观测结果显示,该区致密砂岩储层中发育大量的狭长、扁平状孔喉,其中微纳米级的喉道、黏土矿物晶间孔是本区主要的储集空间。同时借助低温氮气吸附测试、恒速压汞试验、覆压条件下储层物性分析等定量研究手段,显示迪北致密砂岩储层中喉道大小分布在1~4μm,喉道体积占总孔隙体积的2/3。综合研究认为储层的渗流能力受喉道大小、孔喉比值影响,直观地反映了孔喉形态对渗流能力的影响;孔喉中黏土矿物对储层的渗流能力起到重要的影响。

     

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出版历程
  • 收稿日期:  2014-10-31
  • 修回日期:  2015-09-18
  • 刊出日期:  2015-11-28

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