| 甘肃省陇东地区煤8储层特征及煤层气勘查前景分析 |
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| 引用本文： | 吴明俊,许霞,曹学明,王德祖.甘肃省陇东地区煤8储层特征及煤层气勘查前景分析[J].中国煤炭地质,2014(12):28-32. |
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| 作者姓名： | 吴明俊 许霞 曹学明 王德祖 |
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| 作者单位： | 甘肃煤田地质局;甘肃煤炭地质勘查院;中煤地质工程总公司; |
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| 摘 要： | 陇东地区位于鄂尔多斯盆地西南缘,地质勘查程度高,煤炭资源丰富。据近年来煤炭地质勘查及煤层气参数孔等资料,对主要可采煤层煤8储层从含气性、储层压力、渗透性及等温吸附解吸/吸附特征等方面进行了综合分析,认为煤储层裂隙较发育,总体渗透率为中等,属常压、欠饱和储层,煤层含气量最高可达11.51m^3/t,虽然整体含气量偏低,但存在煤层气局部富集的现象,据此提出和盛-荔堡、付家山等5个远景区。
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| 关 键 词： | 煤层气 储层特征 远景区 陇东地区 |
Coal No.8 Reservoir Characteristics and CBM Exploration Prospect Analysis in Longdong Area,Gansu Province |
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| Institution: | Wu Mingjun, Xu Xia, Cao Xueming,Wang Dezu (1. Gansu Bureau of Coal Geological Exploration, Lanzhou, Gansu 730000; 2. Gansu Coal Geological Exploration Institute, Lanzhou, Gansu 730000; 3. China Coal Geological Engineering Corporation, Beijing 100040) |
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| Abstract: | The Longdong area is situated at the southwest margin of the Ordos Basin with high degree of exploration and abundant coal resources. Based on coal geological exploration and CBM parameter well data in recent years have analyzed coal No.8 reservoir methane content, reservoir pressure, permeability and isothermal adsorption/desorption/adsorptive characteristics comprehensively, considered that fissures are well developed in coal reservoir, medium permeability as a whole, belongs to normal pressure, undersaturation reservoir, the CBM content can be 11.51m^3/t as high, although the overall methane content on the low side, but enriched locally, in view of the above, 5 prospects of Hesheng-Libu, Fujiashan etc. put forward. |
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| Keywords: | CBM reservoir characteristics prospect Longdong area |
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