西部典型侏罗系富煤区含水介质条件与水动力学特征
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摘要
以位于吐哈盆地的大南湖矿区为例,结合该区侏罗系含煤地层渗透性好、富水性强、静储量大等典型特征,采用现场取样、压汞实验、扫描电镜等手段,系统研究了侏罗系西山窑组含水层的沉积环境、宏观地层结构、细观孔隙结构等含水介质特征;通过现场抽水试验及室内数据处理分析,研究了该含水层的循环条件及水动力特征。结果表明:研究区侏罗系含水层具有典型的隐伏古湖床沉积环境及高孔隙度、强渗透性、"孔隙-裂隙"双重含水介质共存的特殊水文地质结构特征;区域上,侏罗系含水层补给水源充沛,结合侏罗系含水层的双重介质特征,表现出具有明显滞后效应的水动力学特征,通过Boulton模型对水文地质参数进行校正,经现场试验,更符合该区地下水运动的实际规律。研究成果初步揭示了吐哈盆地富煤区由于地质沉积环境及岩性差异所导致的侏罗系含水介质结构及地下水动力场的特殊性。
Taking the Dananhu mining area located in Turpan-Hami basin as an example,combining with the typical characteristics of Jurassic coal bearing strata,such as good permeability,strong water content,and large reserves,using the methods such as field sampling,pressure mercury test,scanning electron microscope,the authors systematically studied the characteristics of water bearing medium in the aquifer of Jurassic System Xishanyao Formation including sedimentary environment,macro-formation structure and meso-pore structure. Based on the field pumping test and the analysis of data processing,this paper studied the circulation conditions and hydrodynamic characteristics of the aquifer. The results of this study show that the study area of Jurassic aquifer has a typical sedimentary environment of buried ancient lake bed and a special hydro-geological structure characteristics of high porosity,strong permeability,the double aqueous medium of "porosity and fracture". In regional area,due to the Jurassic aquifer recharge water source is abundant and its double aqueous medium quality,the water dynamic characteristics of obvious lag effect are shown.The hydro-geological parameters were corrected by the Boulton model,which was more close to the actual law of groundwater movement in the area through the field test. The research results in this paper are preliminarily revealedthat in the coal rich zone of Turpan-Hami Basin,the particularity of Jurassic aquifer structure and groundwater dynamic field were caused by the differences of sedimentary environment and geological lithologies.
Taking the Dananhu mining area located in Turpan-Hami basin as an example,combining with the typical characteristics of Jurassic coal bearing strata,such as good permeability,strong water content,and large reserves,using the methods such as field sampling,pressure mercury test,scanning electron microscope,the authors systematically studied the characteristics of water bearing medium in the aquifer of Jurassic System Xishanyao Formation including sedimentary environment,macro-formation structure and meso-pore structure. Based on the field pumping test and the analysis of data processing,this paper studied the circulation conditions and hydrodynamic characteristics of the aquifer. The results of this study show that the study area of Jurassic aquifer has a typical sedimentary environment of buried ancient lake bed and a special hydro-geological structure characteristics of high porosity,strong permeability,the double aqueous medium of "porosity and fracture". In regional area,due to the Jurassic aquifer recharge water source is abundant and its double aqueous medium quality,the water dynamic characteristics of obvious lag effect are shown.The hydro-geological parameters were corrected by the Boulton model,which was more close to the actual law of groundwater movement in the area through the field test. The research results in this paper are preliminarily revealedthat in the coal rich zone of Turpan-Hami Basin,the particularity of Jurassic aquifer structure and groundwater dynamic field were caused by the differences of sedimentary environment and geological lithologies.
引文
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[12]武强,赵苏启,孙文洁,等.中国煤矿水文地质类型划分与特征分析[J].煤炭学报,2013,38(6):901-905.Wu Qiang,Zhao Suqi,Sun Wenjie,et al.Classification of the hydrogeological type of coal mine and analysis of its characteristics in China[J].Journal of China Coal Society,2013,38(6):901-905.
[13]杨峰,宁正福,胡昌蓬,等.页岩储层微观孔隙结构特征[J].石油学报,2013,34(2):301-311.Yang Feng,Ning Zhengfu,Hu Changpeng,et al.Characterization of microscopic pore structures in shale reservoirs[J].Acta Petrol EI Sinica,2013,34(2):301-311.
[14]陈义林,秦勇,田华,等.基于压汞法无烟煤孔隙结构的粒度效应[J].天然气地球科学,2015,26(9):1629-1639.Chen Yilin,Qin Yong,Tian Hua,et al.Particle size effect of pore structure of anthracite by mercury porosimetry[J].Natural Gas Geoscience,2015,26(9):1629-1639.
[15]朱永贤,孙卫,于锋.应用常规压汞和恒速压汞实验方法研究储层微观孔隙结构——以三塘湖油田牛圈湖区头屯河组为例[J].天然气地球科学,2008,19(4):553-556.Zhu Yongxian,Sun Wei,Yu Feng.Application of conventional mercury injection and constant speed mercury injection experiment study of reservoir microscopic pore structure,with three cattle pond lake oilfield lake district tuen head circle group,for example[J].Natural Gas Geoscience,2008,19(4):553-556.
[16]杨峰,宁正福,孔德涛,等.高压压汞法和氮气吸附法分析页岩孔隙结构[J].天然气地球科学,2013,24(3):450-455.Yang Feng,Ning Zhengfu,Kong Detao,et al.High pressure mercury intrusion method and the nitrogen adsorption method analysis of shale pore structure[J].Natural Gas Geoscience,2013,24(3):450-455.
[17]张冲,郭聪,宋秋强,等.利用压汞资料预测储层地层因素F的改进方法[J].中国矿业大学学报,2016,45(4):747-753.Zhang Chong,Guo Cong,Song Qiuqiang,et al.improving methods of using mercury injection data to predict reservoir formation factor F[J].Journal of China University of Mining and Technology,2016,45(4):747-753.
[18]谢尔盖耶夫.工程岩土学[M].孔德坊,朱春润,译.北京:地质出版社,1990.
[19]张兆民,鲁孟胜,孙德全.群孔抽水试验在新疆哈密大南湖矿区烧变岩层中的应用研究[J].山东国土资源,2014(8):58-62.Zhang Zhaomin,Lu Mengsheng,Sun Dequan.Application of group drilling pumping test in dananhu burnt rock of mining areas in Xinjiang[J].Land and Resources in Shandong,2014(8):58-62.
[20]杜欣,曾亚武,唐冬云.基于水下抽水试验的岩体渗透系数研究及应用[J].岩石力学与工程学报,2010,29(S2):3542-3548.Du Xin,Zeng Yawu,Tang Dongyun.Based on the underwater rock mass permeability coefficient of pumping test research and application[J].Journal of Rock Mechanics and Engineering,2010,29(S2):3542-3548.
[21]翟晓荣,吴基文,韩东亚.补给边界群孔放水试验的含水层参数计算[J].中国矿业大学学报,2014,43(5):837-840.Zhai Xiaorong,Wu Jiwen,Han Dongya.Recharge boundary of pore water test of aquifer parameter calculation[J].Journal of China University of Mining,2014,43(5):837-840.
[2]孙景龙.新疆煤田地质勘查报告中的水文地质问题涉定[J].科技信息,2013(4):426-427.Sun Jinglong.Hydrogeological problems related to the geological survey report of Xinjiang coalfield[J].Science and Technology Information,2013(4):426-427.
[3]许松,苏远大,陈雪莲,等.含孔隙、裂隙地层随钻多极子声波测井理论[J].地球物理学报,2014,57(6):1999-2012.Xu Song,Su Yuanda,Chen Xuelian,et al.The theory of the multipole sub sonic logging in the drilling of the fractured strata[J].Chinese Journal of Geophysics,2014,57(6):1999-2012.
[4]柴肇云,张亚涛,张学尧.泥岩耐崩解性与矿物组成相关性的试验研究[J].煤炭学报,2015,40(5):1188-1193.Chai Zhaoyun,Zhang Yatao,Zhang Xueyao.Experimental study on the correlation between the disintegration resistance and mineral composition of mudstone[J].Journal of China Coal Society,2015,40(5):1188-1193.
[5]赵永川,杨天鸿,肖福坤,等.西部弱胶结砂岩循环载荷作用下塑性应变能变化规律[J].煤炭学报,2015,40(8):1813-1819.Zhao Yongchuan,Yang Tianhong,Xiao Fukun,et al.Variation of plastic strain energy under cyclic loading of weakly consolidated sandstone in the west of China[J].Journal of China Coal Society,2015,40(8):1813-1819.
[6]任怀强,刘金华,杨少春,等.吐哈盆地红台地区辫状河三角洲砂岩储层微观特征[J].中国石油大学学报(自然科学版),2008,32(5):12-17.Ren Huaiqiang,Liu Jinhua,Yang Shaochun,et al.Sandstone reservoir microscopic characteristics of braid delta of Hongtai area in Tuha Basin[J].Journal of China University of Petroleum(Edition of Natural Science),2008,32(5):12-17.
[7]晋香兰,张泓.鄂尔多斯盆地侏罗系成煤系统[J].煤炭学报,2014,39(1):191-197.Jin Xianglan,Zhang Hong.Jurassic coal system in the Ordos Basin[J].Journal of China Coal Society,2014,39(1):191-197.
[8]桑树勋,秦勇,范炳恒,等.陆相盆地低煤级煤储层特征研究——以准噶尔、吐哈盆地为例[J].中国矿业大学学报,2001,30(4):341-345.Sang Shuxun,Qin Yong,Fan Bingheng,et al.Features of low rank coal reservoir in limnic basins[J].Journal of China University of Mining&Technology,2001,30(4):341-345.
[9]王浩,陈敏建,秦大庸.西北地区水资源合理配置及承载能力研究[M].郑州:黄河水利出版社,2003.Wang Hao,Chen Minjian,Qin Dayong.Reasonable allocation of water resources&carrying capacity research in Northwest Territories[M].Zhengzhou:Yellow Water Conservancy Publishing House,2003.
[10]谭鸿赞.吐哈盆地水文地质条件研究[J].铀矿地质,2002,18(2):97-103.Tan Hongzan.Study of hydrogeological conditions in Turpan-Hami basin[J].Uranium Geology,2002,18(2):97-103.
[11]姚春玲,蔡煜琦,赵永安,等.基于GIS的吐哈盆地大南湖地区中侏罗统西山窑组沉积相恢复[J].铀矿地质,2014,30(1):30-37.Yao Chunling,Cai Yuqi,Zhao Yongan,et al.Gis based reservation of sedimentary faces for Xishanyao formation of middle Jurassic in Dananhu area,Tuha Basin[J].Uranium Geology,2014,30(1):30
[12]武强,赵苏启,孙文洁,等.中国煤矿水文地质类型划分与特征分析[J].煤炭学报,2013,38(6):901-905.Wu Qiang,Zhao Suqi,Sun Wenjie,et al.Classification of the hydrogeological type of coal mine and analysis of its characteristics in China[J].Journal of China Coal Society,2013,38(6):901-905.
[13]杨峰,宁正福,胡昌蓬,等.页岩储层微观孔隙结构特征[J].石油学报,2013,34(2):301-311.Yang Feng,Ning Zhengfu,Hu Changpeng,et al.Characterization of microscopic pore structures in shale reservoirs[J].Acta Petrol EI Sinica,2013,34(2):301-311.
[14]陈义林,秦勇,田华,等.基于压汞法无烟煤孔隙结构的粒度效应[J].天然气地球科学,2015,26(9):1629-1639.Chen Yilin,Qin Yong,Tian Hua,et al.Particle size effect of pore structure of anthracite by mercury porosimetry[J].Natural Gas Geoscience,2015,26(9):1629-1639.
[15]朱永贤,孙卫,于锋.应用常规压汞和恒速压汞实验方法研究储层微观孔隙结构——以三塘湖油田牛圈湖区头屯河组为例[J].天然气地球科学,2008,19(4):553-556.Zhu Yongxian,Sun Wei,Yu Feng.Application of conventional mercury injection and constant speed mercury injection experiment study of reservoir microscopic pore structure,with three cattle pond lake oilfield lake district tuen head circle group,for example[J].Natural Gas Geoscience,2008,19(4):553-556.
[16]杨峰,宁正福,孔德涛,等.高压压汞法和氮气吸附法分析页岩孔隙结构[J].天然气地球科学,2013,24(3):450-455.Yang Feng,Ning Zhengfu,Kong Detao,et al.High pressure mercury intrusion method and the nitrogen adsorption method analysis of shale pore structure[J].Natural Gas Geoscience,2013,24(3):450-455.
[17]张冲,郭聪,宋秋强,等.利用压汞资料预测储层地层因素F的改进方法[J].中国矿业大学学报,2016,45(4):747-753.Zhang Chong,Guo Cong,Song Qiuqiang,et al.improving methods of using mercury injection data to predict reservoir formation factor F[J].Journal of China University of Mining and Technology,2016,45(4):747-753.
[18]谢尔盖耶夫.工程岩土学[M].孔德坊,朱春润,译.北京:地质出版社,1990.
[19]张兆民,鲁孟胜,孙德全.群孔抽水试验在新疆哈密大南湖矿区烧变岩层中的应用研究[J].山东国土资源,2014(8):58-62.Zhang Zhaomin,Lu Mengsheng,Sun Dequan.Application of group drilling pumping test in dananhu burnt rock of mining areas in Xinjiang[J].Land and Resources in Shandong,2014(8):58-62.
[20]杜欣,曾亚武,唐冬云.基于水下抽水试验的岩体渗透系数研究及应用[J].岩石力学与工程学报,2010,29(S2):3542-3548.Du Xin,Zeng Yawu,Tang Dongyun.Based on the underwater rock mass permeability coefficient of pumping test research and application[J].Journal of Rock Mechanics and Engineering,2010,29(S2):3542-3548.
[21]翟晓荣,吴基文,韩东亚.补给边界群孔放水试验的含水层参数计算[J].中国矿业大学学报,2014,43(5):837-840.Zhai Xiaorong,Wu Jiwen,Han Dongya.Recharge boundary of pore water test of aquifer parameter calculation[J].Journal of China University of Mining,2014,43(5):837-840.