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| 运用高斯曲率法预测煤层天然裂隙发育区 | |
| 引用本文： | 刘升贵,安里千,薛茹,张新亮. 运用高斯曲率法预测煤层天然裂隙发育区[J]. 中国矿业大学学报, 2004, 33(5): 573-577 |
| 作者姓名： | 刘升贵 安里千 薛茹 张新亮 |
| 作者单位： | 1. 中国矿业大学,力学与建筑工程学院,北京,100083 2. 焦作大学,建筑工程系,河南,焦作,454003 3. 中国地方煤矿总公司,北京,100011 |
| 基金项目： | 国家自然科学基金资助项目(50374069) |
| 摘 要： | 论述了高斯曲率法预测煤层天然裂隙发育区的基本原理和方法．计算了沁水盆地3号煤层的高斯曲率．在分析高斯曲率与试井渗透率、煤层宏观裂隙的对应关系的基础上，提出了高斯曲率法的裂隙发育区分类标准．依据该标准将3号煤层天然裂隙划分为4级发育区，进而预测出3号煤层渗透率的分布概况．分析表明，高斯曲率法可相对真实地反映煤层曲面形态变化，用该方法预测煤层天然裂隙发育区是切实可行的． |
| 关 键 词： | 高斯曲率法 裂隙 煤层气 主曲率 渗透率 |
| 文章编号： | 1000-1964(2004)05-0573-05 |
| 修稿时间： | 2003-12-10 |
Application of Gaussian Curvature Method in Forecasting Natural Fracture Zones in Coal Seam |
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| LIU Sheng-gui,AN Li-qian,XUE Ru,ZHANG Xin-liang. Application of Gaussian Curvature Method in Forecasting Natural Fracture Zones in Coal Seam[J]. Journal of China University of Mining & Technology, 2004, 33(5): 573-577 | |
| Authors: | LIU Sheng-gui AN Li-qian XUE Ru ZHANG Xin-liang |
| Abstract: | The way and principle of Gaussian curvature method for forecasting natural fracture zones in coal seam are discussed. The Gaussian curvature of No. 3 coal seam in Qinshui basin is calculated. Based on corresponding relationship of Gaussian curvature to macrofractures in coal seam and permeability, the classification criteria of Gaussian curvature method for forecasting natural fracture zones is put forward. According to the criteria, natural fracture zones of No. 3 coal seam are divided into four grades and then the permeability distribution of No. 3 coal seam is pre-estimated. It is concluded that the Gaussian curvature method can reflect the shape variation of coal seam curvature, and the method is effective to forecast natural fracture zones in coal seam. |
| Keywords: | Gaussian curvature fracture coal bed methane principal curvatures permeability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |