| 煤层气选区评价的关键性地质条件——煤体结构 |
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| 引用本文： | 白鸽,张遂安,张帅,冀敏俊,张慧.煤层气选区评价的关键性地质条件——煤体结构[J].中国煤炭地质,2012(5):26-29. |
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| 作者姓名： | 白鸽 张遂安 张帅 冀敏俊 张慧 |
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| 作者单位： | [1]中国石油大学北京,北京102249 [2]山西高河能源有限公司．山西长治047100,北京102249 |
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| 摘 要： | 煤体结构是煤层气高渗高产的决定性因素。我国煤层气勘探开发过程中出现的一些误区．其原因之一就是对煤体结构在选区评价中的作用关注不够。在研究煤层气选区评价主控因素基础上，分析了煤体结构在选区评价中的作用。以山西潞安矿区两个井田为例，阐述了查明煤体结构的途径及根据煤体结构分布规律优选出煤层气地面开发区块。研究表明，潞安矿区主采煤层普遍遭受地质构造破坏，煤体结构在平面上和垂向上均有明显的分带特征，A井田北部、B井田南部地区煤体原生结构较发育，煤储层渗透性较好，可作为地面开发的优选区块。
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| 关 键 词： | 煤层气 选区评价 地质条件 煤体结构 |
A Crucial Geological Condition-Coal Mass Texture in CBM Exploration Target Optimization |
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| Bai Ge,Zhang Suian,Zhang Shuai,Ji Minjun Zhang Hui.A Crucial Geological Condition-Coal Mass Texture in CBM Exploration Target Optimization[J].Coal Geology of China,2012(5):26-29. |
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| Authors: | Bai Ge Zhang Suian Zhang Shuai Ji Minjun Zhang Hui |
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| Institution: | 1.China University of Petroleum (Beijing), Beijing, 102249; 2. Shanxi Gaohe Energy Co, Ltd., Changzhi, Shanxi 047100) |
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| Abstract: | Coal mass texture is a dominant factor influencing the permeability and production of CBM. Our CBM industry had some detours in the past, and one of the important reasons is that we overlooked the function of coal mass texture, which is one of the crucial geological conditions in evaluating CBM exploration target. Based on the analysis of main controlling factors of CBM exploration target optimization, the paper analyzed the effect of coal mass texture in evaluating exploration target, stated the basic methods for describing coal mass texture, and also summarized the distribution character of coal mass texture in Luan area by analyzing two selected minefields in the area. The study shows that the coal in Luan area had undergone tectonic movement, and its coal mass texture has obvious zonation in plan and vertical views. Seeking the zone where coal has primary or cataclastic structure is the efficient method to evaluate CBM exploitation area to gain more gas production. |
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| Keywords: | CBM exploration target optimization geological condition coal mass texture |
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