建新煤矿4^(-2)煤层瓦斯赋存规律及瓦斯富集区域判定  

Gas occurrence law and gas enrichment area determinationof 4^(-2) coal seam in Jianxin Coal Mine

作　　者：王贵余 WANG Guiyu(Shaanxi Jianxin Coal Chemical Co.,Ltd.,Yan’an 727300,China)

机构地区：[1]陕西建新煤化有限责任公司,陕西延安727300

出　　处：《陕西煤炭》2024年第1期79-82,共4页Shaanxi Coal

摘　　要：为了获得建新煤矿4^(-2)煤层的瓦斯赋存规律以及主控因素,从煤岩层特征以及煤层瓦斯含量入手,讨论地质构造、顶底板岩性、煤层厚度、煤层埋深及煤层底板标高各种因素对瓦斯含量的影响,明晰建新煤矿4^(-2)煤层瓦斯赋存的主控因素。研究结果显示,建新煤矿4^(-2)煤层的瓦斯含量与煤层厚度呈线性正相关,煤层的厚度直接影响着瓦斯含量的大小,煤层越厚,其瓦斯含量越大;煤层瓦斯含量与埋深呈正相关,随埋深的增加而逐渐增加;瓦斯含量与底板标高呈负相关关系。基于对建新煤矿4304工作面瓦斯含量的现场实测及分析,绘制瓦斯赋存规律等值线图,得到工作面瓦斯富集区。In order to obtain the gas occurrence law and main control factors of the 4^(-2) coal seam in Jianxin Coal Mine,starting from the characteristics and gas content of the coal seam,the influence of various factors such as geological structure,roof and floor lithology,coal seam thickness,coal seam burial depth,and coal seam floor elevation on the gas content was discussed,and the main control factors of gas occurrence in the 4^(-2) coal seam in the mine were clarified.The research results show that the gas content of the 4^(-2) coal seam is linearly positively correlated with the thickness of the coal seam.The thickness of the coal seam directly affects the value of the gas content,and the thicker the coal seam,the greater its gas content value;The gas content in the coal seam is positively correlated with burial depth,and gradually increases with the increase of burial depth;There is a negative correlation between gas content and floor elevation.Based on on-site measurement and analysis of gas content on the 4304 working face of the mine,an isoline map of gas occurrence law was drawn,and the gas enrichment area of the working face was obtained.

关 键 词：瓦斯赋存规律 主控因素 煤层埋深 瓦斯含量 

分 类 号：TD712[矿业工程—矿井通风与安全]