内蒙古二道岭矿区煤层含气量影响因素分析 .pdfVIP

学兔兔 第23卷1O期 中 国 煤 炭 地 质 V01．23 No．10 2011年 10月 C0AL GE0L0GY 0F CHINA 0ct． 2011 doi：10．3969~．issn．1674—1803．201 1．10．06 文章编号：1674—1803(2011)10—0025—04 内蒙古二道岭矿区煤层含气量影响因素分析 张凯，桑树勋，黄华州，桑浩田，时伟 (中国矿业大学资源与地球科学学院，江苏 徐州 221008) 摘 要：根据实测资料及前人研究成果，分析了二道岭矿区煤变质程度、区域构造、煤层埋深和顶底板岩性对煤层含 气量的影响作用。研究认为：高异常地热场是导致该区域含气量偏高的主要原因；构造和顶底板对煤层气控气作用 明显，二道岭向斜核部煤层的含气量高达24m3／t，矿区顶、底板多为泥岩及粉砂岩组成，利于煤层气的储存；煤层埋深 与含气量之间的相关性密切，根据两者关系建立的数学模型，可以预测研究区深部一定范围内的煤层含气量。 关键词：含气量；影响因素；二道岭矿区 中图分类号：P618．11 文献标识码：A Analysis of Influence Factors on Coalbed Gas Content in Erdaoling Mine Area，Inner Mongolia Zhang Kai，Sang Shuxun，Huang Huazhou，Sang Haotian and Shi Wei (The School of Resource and Each Science，CUMT，Xuzhou，Jiangsu 221008) Abstract：Based on the measured data in Erdaoling mine area，where the gas content is high，the paper analyzed the influence factors from the aspects of metamorphic degree，regional structure and burial depth，as well as the roof and floor lithologic characters．The authors have found that the main reason to cause high gas content is the high anomalous geothermal field，and the gas content is obviously controlled by regional structure and burial depth．Because the depth of coal seam is well correlated with the gas content，the established mathematic model depending on the relation between them is of realistic significance to the gas content prediction within certain range of deep regions． Keywords：gas content；influence factors；Erdaoling mine area 随着开采深度的加深，二道岭矿区面临高瓦斯 2煤层含气量的控制因素 的危险。本文根据煤样实测资料，将结合前人对煤层