摘要
针对平顶山矿区首山一矿矿井瓦斯地质异常复杂的问题,运用地质构造控制理论研究了平顶山矿区、首山一矿矿井瓦斯赋存构造控制规律及井田构造煤分布规律;并探讨了构造煤对煤层增透方法的影响。研究发现,NW—NWW向构造与NNE、NE向构造相比受挤压作用时间长、活动剧烈,控制着矿区、矿井瓦斯高瓦斯突出区分布,井田己组煤层构造煤呈层状发育,白石山背斜北翼构造煤较其南翼发育,且背斜翼部构造煤较轴部发育,水力压裂构造煤时无法形成规模较大的相互连通的裂隙网络,透气性增加不明显。认为在目前技术条件下,首山一矿不宜采用地面或井下水力压裂以提高煤层透气性。
Based on the Gradual control theory of gas occurrence structure,this paper studied the tectonic control rules of gas occurrence and the regularities of tectonic coal distribution in the Shoushan No. 1 Mine of Pingdingshan mining area,and discussed the influences of the tectonic coal on the methods of increasing coal seam＇s permeability. The results show that compared with the NNE and NE trending structures,the NW-NWW trending structures get longer squeeze and move more tempestuously,so it controls the distribution of gas and high gas outburst areas; the tectonic coal of F-group coal seam developed in stratiform. The tectonic coal of Baishishan anticline in the north wing is more developed than it in the south wing,and it in the wings is more developed than it in the axis. Hydraulic fracturing in the coal structure is unable to form larger fracture network interconnection,and it makes little contribution to increase the permeability. As a result,under the conditions of current technology,Shoushan No. 1 Mine is not fit to adopt the way of ground or underground hydraulic fracturing to improve the coal seam permeability.
出处
《能源与环保》
2017年第4期7-11,共5页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
基金
国家十二五重大专项(2011ZX05040-005)
河南理工大学博士基金(B2016-03)
关键词
瓦斯地质
瓦斯赋存
地质构造
构造煤
煤与瓦斯突出
gas geology
gas occurrence
geological structure
tectonic coal
coal and gas outburst
