基于等间距网格法的瓦斯赋存主控因素分析
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摘要
为了采用更准确的数据来研究煤层瓦斯的赋存规律,提出基于等间距网格法的瓦斯赋存规律的方法,该方法适用于多元数据分析。以某煤矿为例,通过对煤矿地质勘探钻孔资料、井田地质条件以及对所收集的数据进行分析处理,使用等间距网格法划分瓦斯数据单元,应用瓦斯地质理论和线性回归的方法,对煤矿二2煤层瓦斯赋存规律及其主控地质因素进行了研究。研究表明:煤层顶底板岩性和煤层厚度是影响该煤矿煤层瓦斯赋存的主要控制因素,其次是煤层上覆基岩厚度。
In order to gain accurate data for studying the occurrence law of coal seam gas,a method has been proposed based on equidistant grid method,which is suitable for multivariate data analysis.The gas data unit is divided by the grid method of equal spacing after analyzing the borehole data of geological exploration,geological conditions of well field in a coal mine as example.Then,the gas occurrence regularities of No.2 seam and the main controlling geological factors are studied by applying gas geological theory and linear regression method.The research results show that the top floor rock and coal seam thickness are the main controlling factors of the gas occurrence in the coal seam,and the second is the thickness of bedrock overlying the coal seam.
In order to gain accurate data for studying the occurrence law of coal seam gas,a method has been proposed based on equidistant grid method,which is suitable for multivariate data analysis.The gas data unit is divided by the grid method of equal spacing after analyzing the borehole data of geological exploration,geological conditions of well field in a coal mine as example.Then,the gas occurrence regularities of No.2 seam and the main controlling geological factors are studied by applying gas geological theory and linear regression method.The research results show that the top floor rock and coal seam thickness are the main controlling factors of the gas occurrence in the coal seam,and the second is the thickness of bedrock overlying the coal seam.
引文
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[2]舒龙勇,程远平,王亮,等.地质因素对煤层瓦斯赋存影响的研究[J].中国安全科学学报,2011,21(2):121-125.SHU Longyong,CHENG Yuanping,WANG Liang,et al.Research on influence of geological factors on gas storage in coal seam[J].China Safety Science Journal,2011,21(2):121-125.
[3]解振,闫江伟,王蔚,等.平顶山矿区东、西分区特征关键影响因素研究[J].安全与环境学报,2015,15(2):102-107.XIE Zhen,YAN Jiangwei,WANG Wei,et al.Research on the different critical characteristic factors of the eastern and western areas of Pingdingshan coalmine[J].Journal of Safety and Environment,2015,15(2):102-107.
[4]闫江伟,张玉柱,王蔚.平顶山矿区瓦斯赋存的构造逐级控制特征[J].煤田地质与勘探,2015,43(2):18-23.YAN Jiangwei,ZHANG Yuzhu,WANG Wei.Characteristics of gas occurrence under stepwise tectonic control in Pingdingshan mining area[J].Coal Geology&Exploration,2015,43(2):18-23.
[5]刘杰,王恩元,撒占友,等.煤层赋存条件对煤与瓦斯突出危险性的影响研究[J].中国安全科学学报,2016,26(12):98-103.LIU Jie,WANG Enyuan,SA Zhanyou,et al.Effects of coalbed occurrence conditions on risk of coal and gas outburst[J].China Safety Science Journal,2016,26(12):98-103.
[6]王云刚,周辰,李辉,等.基于熵权灰色关联法的煤与瓦斯突出主控因素分析[J].安全与环境学报,2016,16(6):5-9.WANG Yungang,ZHOU Chen,LI Hui,et al.Analysis of the dominant controlling factors leading to the coal and gas outburst based on the entropy weight and grey correlation method[J].Journal of Safety and Environment,2016,16(6):5-9.
[7]周世宁,林柏泉.煤层瓦斯赋存与流动理论[M].北京:煤炭工业出版社,1998:8-9.
[8]李增学.矿并构造的构造---地层分析法及其应用[J].煤田地质与勘探,1994(1):25-30.LI Zengxue.Structure-stratum analysis method of mine structure and its application[J].Coal Geology&Exploration,1994(1):25-30.
[9]王恩营,刘明举.煤层断层形成的岩体综合强度分析[J].辽宁工程技术大学学报,2002,21(4):496-498.WANG Enying,LIU Mingju.Analysis of coal bed fault formation by comprehensive strength index method[J].Journal of Liaoning Technical University,2002,21(4):496-498.