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豫东地区煤系烃源岩有机质特征与煤系气资源潜力

杨燕青 张小东 许亚坤 张鹏 王昆 朱春辉

杨燕青, 张小东, 许亚坤, 张鹏, 王昆, 朱春辉. 豫东地区煤系烃源岩有机质特征与煤系气资源潜力[J]. 煤田地质与勘探, 2019, 47(2): 111-120. doi: 10.3969/j.issn.1001-1986.2019.02.018
引用本文: 杨燕青, 张小东, 许亚坤, 张鹏, 王昆, 朱春辉. 豫东地区煤系烃源岩有机质特征与煤系气资源潜力[J]. 煤田地质与勘探, 2019, 47(2): 111-120. doi: 10.3969/j.issn.1001-1986.2019.02.018
YANG Yanqing, ZHANG Xiaodong, XU Yakun, ZHANG Peng, WANG Kun, ZHU Chunhui. The characteristics of organic matter in coal-measure source rocks and coal-measure gas resource potential in eastern Henan Province[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(2): 111-120. doi: 10.3969/j.issn.1001-1986.2019.02.018
Citation: YANG Yanqing, ZHANG Xiaodong, XU Yakun, ZHANG Peng, WANG Kun, ZHU Chunhui. The characteristics of organic matter in coal-measure source rocks and coal-measure gas resource potential in eastern Henan Province[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(2): 111-120. doi: 10.3969/j.issn.1001-1986.2019.02.018

豫东地区煤系烃源岩有机质特征与煤系气资源潜力

doi: 10.3969/j.issn.1001-1986.2019.02.018
基金项目: 

国家自然科学基金项目(41372162)

详细信息
    第一作者:

    杨燕青,1993年生,男,山西晋城人,硕士研究生,从事煤层气地质勘探及开发工作.E-mail:15235625207@163.com

  • 中图分类号: P618.12

The characteristics of organic matter in coal-measure source rocks and coal-measure gas resource potential in eastern Henan Province

Funds: 

National Natural Science Foundation of China(41372162)

  • 摘要: 为了评价豫东地区煤系烃源岩生烃潜力,基于有机碳含量(TOC)、镜质体反射率、干酪根类型及显微组成等测试分析结果,探讨了豫东地区不同区块煤系烃源岩的有机地球化学特征,对比分析了不同区块煤系气资源潜力,提出煤系气勘探有利区块。结果表明:区内煤系烃源岩的有机碳含量偏低(小于1.5%);干酪根类型以Ⅲ型为主,偶见Ⅱ2型干酪根,利于生气;煤系经历了中二叠-中晚三叠世和晚侏罗-早白垩世2个大量生烃阶段,烃源岩热演化程度较高,镜质体反射率(Rran)为1.44%~3.80%,平均2.83%,有机质进入高成熟-过高成熟阶段,生烃量较充足。总体上,区内烃源岩生烃潜力属于差-中级别,砂泥岩储集性能相对较好,含气量高。煤系盖层主要为封盖性好的细砂岩、煤层、泥质岩类,煤系烃源岩气体保存条件好。研究认为研究区的睢西区块烃源岩具有埋藏深度较浅、有效厚度大、孔隙度高、含气量和含气饱和度高、有机质成熟度高的特点,为豫东煤系气勘探的有利区块。

     

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出版历程
  • 收稿日期:  2018-05-31
  • 发布日期:  2019-04-25

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