基于探采对比的煤层瓦斯含量分析及预测

发布时间：2018-03-08 20:04

本文选题：安全工程　切入点：探采对比　出处：《安全与环境学报》2015年03期 　论文类型：期刊论文

【摘要】：针对新建矿井地勘瓦斯含量测值偏低和井下实测瓦斯含量较少的特点,结合工程和科研实践,提出了利用大量的工作面瓦斯涌出量反演煤层原始瓦斯含量技术和基于探采对比的煤层瓦斯含量预测方法。以邹庄井田32煤层为研究对象,在考虑瓦斯抽采情况下计算3204工作面瓦斯涌出量,并反演该工作面煤层原始瓦斯含量。通过对比采掘过程中获得的瓦斯含量和地勘瓦斯含量,得到不同钻孔深度时的地勘瓦斯含量修正系数,并采用瓦斯地质研究方法对32煤层分3个单元进行瓦斯含量预测。结果表明:32煤层瓦斯含量整体呈现"东部大于西部,北部大于南部"的规律,与临近矿井具有相似的瓦斯赋存规律。这表明利用探采对比的方法预测煤层瓦斯含量是可靠的。
[Abstract]:In view of the characteristics that the gas content in the new mine is low and the measured gas content in the mine is low, combined with the practice of engineering and scientific research, This paper puts forward the technique of retrieving the original gas content of coal seam with a large amount of gas emission from working face and the method of predicting coal seam gas content based on exploration and contrast. The research object is 32 coal seam in Zouzhuang mine field. Considering the situation of gas drainage, the amount of gas emission from working face 3204 is calculated, and the original gas content in the coal seam of the working face is retrieved. By comparing the gas content obtained in the mining process and the gas content in geological exploration, The correction coefficient of gas content in geological prospecting with different drilling depth was obtained, and the gas content of 32 coal seam was predicted by using gas geology research method. The results show that the gas content of seam 32 is larger in the east than in the west. The law of "in the north is greater than in the south", which is similar to that in the adjacent mine, which indicates that it is reliable to predict the gas content in coal seam by using the method of exploration and mining contrast.
【作者单位】：河南理工大学安全科学与工程学院;河南省瓦斯地质与瓦斯治理重点实验室——省部共建国家重点实验室培育基地;
【基金】：国家科技重大专项(2011ZX05040-005) 河南省高校科技创新团队支持计划项目(14IRTSTHN002) 中原经济区煤层(页岩)气河南省协同创新中心资助项目
【分类号】：TD712.3

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