黄河北煤田赵官井田煤层瓦斯赋存规律及主控因素
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摘要
基于煤层瓦斯的生成、赋存、运移理论,结合地质勘探和矿井生产揭露的瓦斯地质资料,分析了山东黄河北煤田赵官井田煤层瓦斯赋存规律及其主控因素。从区域地质演化、煤的生储气能力、岩性组合特征、地质构造、埋藏深度、基岩厚度、水文地质条件和岩浆侵入等因素综合研究发现,影响赵官井田煤层瓦斯赋存的主控因素为地下水动力条件及岩浆侵入事件。地下水动力条件对煤层瓦斯的控气作用明显,浅部水动力条件对煤层瓦斯主要表现为水力运移逸散作用,不利于煤层瓦斯保存,向深部主要表现为封闭和封堵2种类型,有利于瓦斯的保存。岩浆侵入煤层的方式及其程度是造成下组煤(11号、13号煤)瓦斯含量普遍低于上组煤(7号、10号煤)的主控因素。
Storage rule and controlling factors of coalbed gas in Zhaoguan mine field were analyzed on the basis of the generation, storage and migration theory of coalbed gas in combination with the data of geological exploration and mine production. From research on the regional geological evolution, coal generating and storing capacity and lithologic characteristics, geological structure, burial depth, bedrock thickness, hydrogeological conditions and magmatic intrusion, it was found that underground hydrodynamic conditions and magmatic intrusion events are the controlling factors of coalbed gas storage in the mine. Underground hydrodynamic conditions had obvious effect,shallow hydrodynamic conditions were manifested mainly as migration and escape and were unfavorable to the conservation of coalbed gas. The deep hydrodynamic conditions were presented mainly as sealing and blockage,advantageous to the storage of gas. The manner and degree of magmatic intrusion of coal seams were the major controlling factors resulting in the lower gas content in seam 11 and 13 than that in seam 7 and 10.
Storage rule and controlling factors of coalbed gas in Zhaoguan mine field were analyzed on the basis of the generation, storage and migration theory of coalbed gas in combination with the data of geological exploration and mine production. From research on the regional geological evolution, coal generating and storing capacity and lithologic characteristics, geological structure, burial depth, bedrock thickness, hydrogeological conditions and magmatic intrusion, it was found that underground hydrodynamic conditions and magmatic intrusion events are the controlling factors of coalbed gas storage in the mine. Underground hydrodynamic conditions had obvious effect,shallow hydrodynamic conditions were manifested mainly as migration and escape and were unfavorable to the conservation of coalbed gas. The deep hydrodynamic conditions were presented mainly as sealing and blockage,advantageous to the storage of gas. The manner and degree of magmatic intrusion of coal seams were the major controlling factors resulting in the lower gas content in seam 11 and 13 than that in seam 7 and 10.
引文
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[2]姜波,许进鹏,朱奎,等.鄂尔多斯盆地东缘构造-水文地质控气特征[J].高校地质学报,2011,18(3):438-446.JIANG Bo,XU Jinpeng,ZHU Kui,et al.Structural and hydrogeological controls of coalbed methane preservation in the eastern Ordos basin[J].Geological Journal of China Universities,2011,18(3):438-446.
[3]李贵红,张泓,张培河,等.晋城煤层气分布和主导因素的再认识[J].煤炭学报,2010,35(10):1680-1684.LI Guihong,ZHANG Hong,ZHANG Peihe,et al.The renewed understanding for the distribution of coalbed methane and the controlling factor in Jincheng[J].Journal of China Coal Society,2010,35(10):1680-1684.
[4]秦胜飞,宋岩,唐修义,等.水动力条件对煤层气含量的影响[J].天然气地球科学,2005,16(2):149-152.QIN Shengfei,SONG Yan,TANG Xiuyi,et al.The influence on coalbed gas content by hydrodynamics[J].Natural Gas Geoscience,2005,16(2):149-152.
[5]王怀勐,朱炎铭,李伍,等.煤层气赋存的两大地质控制因素[J].煤炭学报,2011,36(7):1129-1134.WANG Huaimeng,ZHU Yanming,LI Wu,et al.Two major geological control factors of occurrence characteristics of CBM[J].Journal of China Coal Society,2011,36(7):1129-1134.
[6]田文广,汤达祯,孙斌,等.鄂尔多斯盆地东缘含煤地层水动力条件及其控气作用[J].高校地质学报,2012,18(3):433-437.TIAN Wenguang,TANG Dazhen,SUN Bin,et al.Hydrodynamic conditions and their controls of gas in coal-bearing strata in eastern edge of the Ordos basin[J].Geological Journal of China Universities,2012,18(3):433-437.
[7]郭德勇,张子敏,张子戌.瓦斯地质研究进展[M].徐州:中国矿业大学出版社,2013.
[8]范士彦.山东省煤层气资源评价[J].煤田地质与勘探,1999,27(6):20-22.FAN Shiyan.Resource evaluation on coalbed gas in Shandong[J].Coal Geology&Exploration,1999,27(6):20-22.
[9]张正修.山东省煤层气资源开发利用研究[J].山东煤炭科技,2010(4):159-160.ZHANG Zhengxiu.Research on exploitation and utilization of coalbed gas resources in Shandong[J].Shandong Coal Science and Technology,2010(4):159-160.
[10]范士彦,魏怀习,范庆武.黄河北、章丘、淄博煤田煤层气开发前景[J].中国煤田地质,2001,13(4):27-28.FAN Shiyan,WEI Huaixi,FAN Qingwu.Exploiting prospect of coalbed gas in north of the Huanghe River,Zhangqiu and Zibo coal fields[J].Coal Geology of China,2001,13(4):27-28.
[11]赵阳,马明永,曲泽良.山东省黄河北煤田煤层气主控因素分析及资源量估算[J].山东煤炭科技,2016(8):173-177.ZHAO Yang,MA Mingyong,QU Zeliang.Analysis of main control factors and estimation of resource of coalbed gas in the Yellow River coal field,Shandong Province[J].Shandong Coal Science and Technology,2016(8):173-177.
[12]中华人民共和国国土资源部.煤层气资源/储量规范:DZ/T0216-2010[S].北京:地质出版社,2011.
[13]张新民,张遂安,钟玲文,等.中国的煤层甲烷[M].西安:陕西科学技术出版社,1991.
[14]张新民,庄军,张遂安.中国煤层气地质与资源评价[M].北京:科学出版社,2002.
[15]秦胜飞,宋岩,唐修义,等.流动的地下水对煤层含气性的破坏机理[J].科学通报,2005,50(增刊1):99-104.QIN Shengfei,SONG Yan,TANG Xiuyi,et al.Damage mechanism of flowing groundwater on CBM-bearing property[J].Chinese Science Bulletin,2005,50(S1):99-104.
[16]刘松良,郭剑萍.山东黄河北煤田岩浆岩特征及其对煤层煤质的影响[J].中国煤田地质,2003,15(6):14-15.LIU Songliang,GUO Jianping.Igneous rock features and its influence on coal seam and coal quality of Huanghebei coalfield,Shandong Province[J].Coal Geology of China,2003,15(6):14-15.
[17]刁玉杰,魏久传,施龙青.赵官井田岩浆岩侵入特征及对煤层开采的影响[J].山东煤炭科技,2008(1):92-94.DIAO Yujie,WEI Jiuchuan,SHI Longqing.The characters of magmatic rocks and the influence to the mining for coal seams in Zhaoguan shaft area[J].Shandong Coal Science and Technology,2008(1):92-94.
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