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柴达木盆地北缘鱼卡煤田侏罗系煤层气特征及含气性评价

陈磊 田景春 文怀军 刘世明 杨颖

陈磊, 田景春, 文怀军, 刘世明, 杨颖. 柴达木盆地北缘鱼卡煤田侏罗系煤层气特征及含气性评价[J]. 石油实验地质, 2019, 41(2): 215-221. doi: 10.11781/sysydz201902215
引用本文: 陈磊, 田景春, 文怀军, 刘世明, 杨颖. 柴达木盆地北缘鱼卡煤田侏罗系煤层气特征及含气性评价[J]. 石油实验地质, 2019, 41(2): 215-221. doi: 10.11781/sysydz201902215
CHEN Lei, TIAN Jingchun, WEN Huaijun, LIU Shiming, YANG Ying. Jurassic coal bed methane characteristics and gas-bearing property evaluation in Iqe Coalfield, northern Qaidam Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2019, 41(2): 215-221. doi: 10.11781/sysydz201902215
Citation: CHEN Lei, TIAN Jingchun, WEN Huaijun, LIU Shiming, YANG Ying. Jurassic coal bed methane characteristics and gas-bearing property evaluation in Iqe Coalfield, northern Qaidam Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2019, 41(2): 215-221. doi: 10.11781/sysydz201902215

柴达木盆地北缘鱼卡煤田侏罗系煤层气特征及含气性评价

doi: 10.11781/sysydz201902215
基金项目: 

青海省地勘基金项目(2017042007ky007)资助。

详细信息
    作者简介:

    陈磊(1984-),男,博士研究生,高级工程师,从事地质勘查与研究。E-mail:231263495@qq.com。

  • 中图分类号: TE132.2

Jurassic coal bed methane characteristics and gas-bearing property evaluation in Iqe Coalfield, northern Qaidam Basin

  • 摘要: 柴达木盆地北缘蕴含丰富的煤炭资源及煤层气资源,鱼卡煤田便是一个富含煤层气的典型区域,含煤地层为中侏罗统石门沟组和大煤沟组。鱼卡凹陷地区受区域构造影响,含气量分布不均,其中石门沟组M5煤层和大煤沟组M7煤层煤层气资源前景较好。通过深度-含气性关系分析,发现二井田地区含气性梯度明显且深度-含气性关系的离散性较小,M7煤层含气性随埋深增加呈"先减小后增大"的趋势;而尕秀地区、羊水河和鱼卡东部地区M7煤层含气性随深度增加呈"先增大再减小"的趋势。鱼卡凹陷侏罗系M7煤层的含气性在不同构造单元差异较大,呈现明显的不均一性,整体来看,鱼卡凹陷西部煤层含气性显著高于东部,北部略优于南部,由南向北呈现先降低后升高的趋势;鱼卡煤田北部F2断层和F10断层所控制的区域,在一个小型背斜构造存在2个相对高含气量区,由南向北煤层含气量逐渐增高;而鱼卡煤田东部北山和二井田地区,其煤层含气量普遍较低。

     

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出版历程
  • 收稿日期:  2018-10-17
  • 修回日期:  2019-02-12
  • 刊出日期:  2019-03-28

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