摘要
运用地质构造控制理论,结合区域构造演化特征,通过对贺西煤矿瓦斯地质资料的统计,分析了构造、煤层埋深、上覆地层厚度、顶板泥岩厚度、煤层底板标高、地下水条件等地质因素对瓦斯赋存的影响,得出地质构造、煤层埋深和上覆地层厚度是影响贺西煤矿4号煤层瓦斯含量分布的主控因素,其它地质因素影响煤层瓦斯的局部变化。瓦斯在煤储层中的赋存和分布受地质条件控制,存在明显的瓦斯地质规律。因此,准确掌握贺西矿4号煤层瓦斯地质规律能够为合理进行矿井通风设计、煤层气资源开发利用和瓦斯综合治理提供科学依据,对指导矿井生产具有重要意义。
Based on control theory of geological structure, regional tectonic evolution characteristics, analyze the influence of structure, coal seam depth, overlying formation thickness, thickness of roof mudstone, coal floor elevation, groundwater conditions and other geological factors on gas occurrence in Hexi mine. Draw the conclusion that the main control factors of gas content distribution includes geological structure, coal seam depth and overlying formation thickness of coal seam No. 4 in Hexi Mine, and other geological factors affecting the local coal seam gas local variation. Gas occurrence and distribution in coal reservoir controlled by the geological conditions is an obvious geological law. Therefore, accurate knowledge of gas occurrence regularity of coal seam No. 4 in Hexi mine will reasonably provide a scientific basis for the design of mine ventilation, development and utilization of coal bed methane and gas resources, which has great significance for the mine production.
出处
《洁净煤技术》
CAS
2011年第4期101-103,共3页
Clean Coal Technology
基金
大型油气田及煤层气开发国家科技重大专项(2008ZX05034-001
2009ZX05062)
国家重点基础研究发展规划项目(973)(2009CB219604)
关键词
贺西矿
瓦斯地质规律
埋藏深度
Hexi mine
gas occurrence regularity
burial depth
