赵庄区块地下水特征对煤层气开发的影响分析
|
摘要
为查明赵庄区块地下水运移、补给特征及其对煤层气开发的影响,采用地质分析与试验测试相结合的手段,对该区块地下水运移规律和煤层气井3号煤排采水来源进行了深入分析与研究,同时,结合区块内煤层气井生产实际,进一步分析了地下水对煤层气井产能的影响。结果表明:赵庄区块存在一条显著的地下水分水岭,分水岭北部地下水由南西向北东方向径流,南侧地下水由北向南方向径流,煤层气井3号煤排采水补给源主要为其顶板山西组砂岩裂隙含水层,排采水主要类型为Na-HCO_3型。3号煤层顶板以上的基岩中,砂岩比例高的区域,煤层气井产水量大,排采难度高;泥岩比例高的区域,气井产水量低,产气潜力高。研究结果利于该区块煤层气井排采和开发方案的制定与调整。
In order to find out the characteristics of groundwater migration and recharging and the influence of groundwater to coalbed methane( CBM) development in Zhaozhuang Block,the migration law and recharging source of No.3 coal seam in the block were analyzed and studied by the means of geological analysis and experimental tests. Meanwhile,the influence of groundwater on the productions of CBM wells was further analyzed combining the actual productions in the block.The results showed that there was a significant groundwater divide in Zhaozhuang Block.In the northern side of the groundwater divide,water run from southern west to northern east.But in the southern side,the groundwater flowed from north to south.The main recharging source of No.3 coal seam was its roof sandstone fissure aquifer in Shanxi Formation.The main type of drainage water was Na-HCO_3.The higher sandstone proportion of No.3 coal roof bedrock was,the larger water production of CBM well was.Then,the drainage of CBM well was harder. On the other hand,the water production of CBM well was lower and the gas production potential was better in the area where the mudstone proportion of No.3 coal roof bedrock was higher. The findings were conducive to the formulation and adjustment of the CBM wells drainage and development plan in this block.
In order to find out the characteristics of groundwater migration and recharging and the influence of groundwater to coalbed methane( CBM) development in Zhaozhuang Block,the migration law and recharging source of No.3 coal seam in the block were analyzed and studied by the means of geological analysis and experimental tests. Meanwhile,the influence of groundwater on the productions of CBM wells was further analyzed combining the actual productions in the block.The results showed that there was a significant groundwater divide in Zhaozhuang Block.In the northern side of the groundwater divide,water run from southern west to northern east.But in the southern side,the groundwater flowed from north to south.The main recharging source of No.3 coal seam was its roof sandstone fissure aquifer in Shanxi Formation.The main type of drainage water was Na-HCO_3.The higher sandstone proportion of No.3 coal roof bedrock was,the larger water production of CBM well was.Then,the drainage of CBM well was harder. On the other hand,the water production of CBM well was lower and the gas production potential was better in the area where the mudstone proportion of No.3 coal roof bedrock was higher. The findings were conducive to the formulation and adjustment of the CBM wells drainage and development plan in this block.
引文
[1]王勃,李谨,张敏.煤层气成藏地层水化学特征研究[J].石油天然气学报,2007,29(5):66-68.WANG Bo,LI Jin,ZHANG Min.Formation water chemical characteristics of coalbed methane reservoir formation[J].Journal of Oil and Gas Technology,2007,29(5):66-68.
[2]叶建平,武强,王子和.水文地质条件对煤层气赋存的控制作用[J].煤炭学报,2001,26(5):459-462.YE Jianping,WU Qiang,WANG Zihe.Controlled characteristics of hydrogeological conditions on the coalbed methane migration and accumulation[J].Journal of China Coal Society,2001,26(5):459-462.
[3]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].髙校地质学报,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 Ordos Basin[J].Geological Journal of China Universities,2012,18(3):433-437.
[4]李忠城,唐书恒,王晓锋,等.沁水盆地煤层气井产出水化学特征与产能关系研究[J].中国矿业大学学报,2011,40(3):424-429.LI Zhongcheng,TANG Shuheng,WANG Xiaofeng,et al.Relationship between water chemical composition and production of coalbed methane wells,Qinshui basin[J].Journal of China University of Mining&Technology,2011,40(3):424-429.
[5]朱卫平,唐书恒,吕建伟,等.枣园区块煤层气井产出水化学特征及动态变化规律[J].煤田地质与勘探,2015,43(1):72-75.ZHU Weiping,TANG Shuheng,LYU Jianwei,et al.The characteristics and dynamic changes of produced water from coalbed methane wells in Zaoyuan Block[J].Coal Geology&Exploration,2015,43(1):72-75.
[6]张松航,唐书恒,李忠城,等.煤层气井产出水化学特征及变化规律:以沁水盆地柿庄南区块为例[J].中国矿业大学报,2015,44(2):292-299.ZHANG Songhang,TANG Shuheng,LI Zhongcheng,et al.The hydrochemical characteristics and ion changes of the coproduced water:taking Shizhuangnan Block of south Qinshui Basin as an example[J].Journal of China University of Mining&Technology,2015,44(2):292-299.
[7]郭广山,柳迎红,张苗,等.沁水盆地柿庄南区块排采水特征及其对煤层气富集的控制作用[J].天然气地球科学,2017,28(7):1115-1125.GUO Guangshan,LIU Yinghong,ZHANG Miao,et al.The characteristics of drainage water and its controlling effects on the favorable area of CBM in Shizhuangnan Block,Qinshui Basin[J].Natural Gas Geoscience,2017,28(7):1115-1125.
[8]刘会虎,桑树勋,李梦溪,等.煤层气群井排采地层水来源判识及其意义[J].水文地质工程地质,2015,42(1):29-34.LIU Huihu,SANG Shuxun,LI Mengxi,et al.Discrimination of source of formation water during CBM drainage with the multi-well pattern and its significance[J].Hydrogeology&Engineering Geology,2015,42(1):29-34.
[9]秦勇,张政,白建平,等.沁水盆地南部煤层气井产出水源解析及合层排采可行性判识[J].煤炭学报,2014,39(9):1892-1898.QIN Yong,ZHANG Zheng,BAI Jianping,et al.Source apportionment of produced-water and feasibility discrimination of commingling CBM production from wells in Southern Qinshui Basin[J].Journal of China Coal Society,2014,39(9):1892-1898.
[10]时伟,唐书恒,李忠城,等.沁水盆地南部山西组煤储层产出水氢氧同位素特征[J].煤田地质与勘探,2017,45(2):62-68.SHI Wei,TANG Shuheng,LI Zhongcheng,et al.Hydrogen-oxygen isotope characteristics of produced water from coal reservoir of Shanxi Formation in Qinshui basin[J].Coal Geology&Exploration,2017,45(2):62-68.
[11]ZHANG Songhang,TANG Shuheng,LI Zhongcheng,et al.Stable isotope characteristics of CBM co-produced water and implications for CBM development:the example of the Shizhuangnan Block in the southern Qinshui Basin,China[J].Journal of Natural Gas Science and Engineering,2015,27:1400-1411.
[12]王善博,唐书恒,万毅,等.山西沁水盆地南部太原组煤储层产出水氢氧同位素特征[J].煤炭学报,2013,38(3):448-454.WANG Shanbo,TANG Shuheng,WAN Yi,et al.The hydrogen and oxygen isotope characteristics of drainage water from Taiyuan coal reservoir[J].Journal of China Coal Society,2013,38(3):448-454.
[13]卫明明,琚宜文.沁水盆地南部煤层气田产出水地球化学特征及其来源[J].煤炭学报,2015,40(3):629-635.WEI Mingming,JU Yiwen.Chemical characteristics and origin of produced waters from coalbed gas field in the southern of Qinshui Basin[J].Journal of China Coal Society,2015,40(3):629-635.
[14]郭晨,秦勇,夏玉成,等.基于氢、氧同位素的煤层气合排井产出水源判识:以黔西地区比德—三塘盆地上二叠统为例[J].石油学报,2017,38(5):493-501.GUO Chen,QIN Yong,XIA Yucheng,et al.Source discrimination of produced water from CBM commingling wells based on the hydrogen and oxygen isotopes:a case study of the Upper Permian,Bide-Santang Basin,western Guizhou Area[J].Acta Petrolei Sinica,2017,38(5):493-501.
[15]Deutsch W J.Groundwater geochemistry:fundamentals and applications to contamination[M].Boca Raton:Lewis Publishers,1997:3-73.
[16]冯芳,冯起,刘贤德,等.天山乌鲁木齐河源1号冰川融水径流水化学特征研究[J].冰川冻土,2014,36(1):183-191.FENG Fang,FENG Qi,LIU Xiande,et al.A study of hydrochemical characteristics of meltwater runoff of therümqi Glacier No.1 Tianshan Mountains[J].Journal of Glaciology and Geocryology,2014,36(1):183-191.
[17]石文学,李立伟,张磊,等.天津市七里海洼应急供水水源地地下水水化学特征分析[J].水资源与水工程学报,2016,27(2):98-102,107.SHI Wenxue,LI Liwei,ZHANG Lei,et al.Analysis of groundwater chemistry characteristics of emergency water source in Qilihai of Tianjin[J].Journal of Water Resources&Water Engineering,2016,27(2):98-102,107.
[18]刘玉,刘德深,沈立成.云南维西花岗岩地区水文地球化学特征及形成机制研究[J].地球化学,2007,36(2):161-170.LIU Yu,LIU Deshen,SHEN Licheng.Hydrogeochemical characteristics and mechanisms of granite area in Weixi,Yunnan Province[J].Geochimica,2007,36(2):161-170.
[19]王瑞久.三线图解及其水文地质解释[J].工程勘察,1983,11(6):6-11.WANG Ruijiu.Three line diagram and its hydrological geological explanation[J].Geotechnical Investigation&Surveying,1983,11(6):6-11.
[20]赵峰华,任德贻,张旺.煤中氯的地球化学特征及逐级化学提取[J].中国矿业大学学报,1999,28(1):61-64.ZHAO Fenghua,REN Deyi,ZHANG Wang.Geochemical characteristics and step-by-step extraction of chlorine in coal[J].Journal of China University of Mining&Technology,1999,28(1):61-64.
[21]徐锐,汤达祯,陶树,等.沁水盆地安泽区块煤层气藏水文地质特征及其控气作用[J].天然气工业,2016,36(2):36-44.XU Rui,TANG Dazhen,TAO Shu,et al.Hydrogeological characteristics of CBM reservoirs and their controlling effects in Anze Block,Qinshui Basin[J].Natural Gas Industry,2016,36(2):36-44.
[2]叶建平,武强,王子和.水文地质条件对煤层气赋存的控制作用[J].煤炭学报,2001,26(5):459-462.YE Jianping,WU Qiang,WANG Zihe.Controlled characteristics of hydrogeological conditions on the coalbed methane migration and accumulation[J].Journal of China Coal Society,2001,26(5):459-462.
[3]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].髙校地质学报,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 Ordos Basin[J].Geological Journal of China Universities,2012,18(3):433-437.
[4]李忠城,唐书恒,王晓锋,等.沁水盆地煤层气井产出水化学特征与产能关系研究[J].中国矿业大学学报,2011,40(3):424-429.LI Zhongcheng,TANG Shuheng,WANG Xiaofeng,et al.Relationship between water chemical composition and production of coalbed methane wells,Qinshui basin[J].Journal of China University of Mining&Technology,2011,40(3):424-429.
[5]朱卫平,唐书恒,吕建伟,等.枣园区块煤层气井产出水化学特征及动态变化规律[J].煤田地质与勘探,2015,43(1):72-75.ZHU Weiping,TANG Shuheng,LYU Jianwei,et al.The characteristics and dynamic changes of produced water from coalbed methane wells in Zaoyuan Block[J].Coal Geology&Exploration,2015,43(1):72-75.
[6]张松航,唐书恒,李忠城,等.煤层气井产出水化学特征及变化规律:以沁水盆地柿庄南区块为例[J].中国矿业大学报,2015,44(2):292-299.ZHANG Songhang,TANG Shuheng,LI Zhongcheng,et al.The hydrochemical characteristics and ion changes of the coproduced water:taking Shizhuangnan Block of south Qinshui Basin as an example[J].Journal of China University of Mining&Technology,2015,44(2):292-299.
[7]郭广山,柳迎红,张苗,等.沁水盆地柿庄南区块排采水特征及其对煤层气富集的控制作用[J].天然气地球科学,2017,28(7):1115-1125.GUO Guangshan,LIU Yinghong,ZHANG Miao,et al.The characteristics of drainage water and its controlling effects on the favorable area of CBM in Shizhuangnan Block,Qinshui Basin[J].Natural Gas Geoscience,2017,28(7):1115-1125.
[8]刘会虎,桑树勋,李梦溪,等.煤层气群井排采地层水来源判识及其意义[J].水文地质工程地质,2015,42(1):29-34.LIU Huihu,SANG Shuxun,LI Mengxi,et al.Discrimination of source of formation water during CBM drainage with the multi-well pattern and its significance[J].Hydrogeology&Engineering Geology,2015,42(1):29-34.
[9]秦勇,张政,白建平,等.沁水盆地南部煤层气井产出水源解析及合层排采可行性判识[J].煤炭学报,2014,39(9):1892-1898.QIN Yong,ZHANG Zheng,BAI Jianping,et al.Source apportionment of produced-water and feasibility discrimination of commingling CBM production from wells in Southern Qinshui Basin[J].Journal of China Coal Society,2014,39(9):1892-1898.
[10]时伟,唐书恒,李忠城,等.沁水盆地南部山西组煤储层产出水氢氧同位素特征[J].煤田地质与勘探,2017,45(2):62-68.SHI Wei,TANG Shuheng,LI Zhongcheng,et al.Hydrogen-oxygen isotope characteristics of produced water from coal reservoir of Shanxi Formation in Qinshui basin[J].Coal Geology&Exploration,2017,45(2):62-68.
[11]ZHANG Songhang,TANG Shuheng,LI Zhongcheng,et al.Stable isotope characteristics of CBM co-produced water and implications for CBM development:the example of the Shizhuangnan Block in the southern Qinshui Basin,China[J].Journal of Natural Gas Science and Engineering,2015,27:1400-1411.
[12]王善博,唐书恒,万毅,等.山西沁水盆地南部太原组煤储层产出水氢氧同位素特征[J].煤炭学报,2013,38(3):448-454.WANG Shanbo,TANG Shuheng,WAN Yi,et al.The hydrogen and oxygen isotope characteristics of drainage water from Taiyuan coal reservoir[J].Journal of China Coal Society,2013,38(3):448-454.
[13]卫明明,琚宜文.沁水盆地南部煤层气田产出水地球化学特征及其来源[J].煤炭学报,2015,40(3):629-635.WEI Mingming,JU Yiwen.Chemical characteristics and origin of produced waters from coalbed gas field in the southern of Qinshui Basin[J].Journal of China Coal Society,2015,40(3):629-635.
[14]郭晨,秦勇,夏玉成,等.基于氢、氧同位素的煤层气合排井产出水源判识:以黔西地区比德—三塘盆地上二叠统为例[J].石油学报,2017,38(5):493-501.GUO Chen,QIN Yong,XIA Yucheng,et al.Source discrimination of produced water from CBM commingling wells based on the hydrogen and oxygen isotopes:a case study of the Upper Permian,Bide-Santang Basin,western Guizhou Area[J].Acta Petrolei Sinica,2017,38(5):493-501.
[15]Deutsch W J.Groundwater geochemistry:fundamentals and applications to contamination[M].Boca Raton:Lewis Publishers,1997:3-73.
[16]冯芳,冯起,刘贤德,等.天山乌鲁木齐河源1号冰川融水径流水化学特征研究[J].冰川冻土,2014,36(1):183-191.FENG Fang,FENG Qi,LIU Xiande,et al.A study of hydrochemical characteristics of meltwater runoff of therümqi Glacier No.1 Tianshan Mountains[J].Journal of Glaciology and Geocryology,2014,36(1):183-191.
[17]石文学,李立伟,张磊,等.天津市七里海洼应急供水水源地地下水水化学特征分析[J].水资源与水工程学报,2016,27(2):98-102,107.SHI Wenxue,LI Liwei,ZHANG Lei,et al.Analysis of groundwater chemistry characteristics of emergency water source in Qilihai of Tianjin[J].Journal of Water Resources&Water Engineering,2016,27(2):98-102,107.
[18]刘玉,刘德深,沈立成.云南维西花岗岩地区水文地球化学特征及形成机制研究[J].地球化学,2007,36(2):161-170.LIU Yu,LIU Deshen,SHEN Licheng.Hydrogeochemical characteristics and mechanisms of granite area in Weixi,Yunnan Province[J].Geochimica,2007,36(2):161-170.
[19]王瑞久.三线图解及其水文地质解释[J].工程勘察,1983,11(6):6-11.WANG Ruijiu.Three line diagram and its hydrological geological explanation[J].Geotechnical Investigation&Surveying,1983,11(6):6-11.
[20]赵峰华,任德贻,张旺.煤中氯的地球化学特征及逐级化学提取[J].中国矿业大学学报,1999,28(1):61-64.ZHAO Fenghua,REN Deyi,ZHANG Wang.Geochemical characteristics and step-by-step extraction of chlorine in coal[J].Journal of China University of Mining&Technology,1999,28(1):61-64.
[21]徐锐,汤达祯,陶树,等.沁水盆地安泽区块煤层气藏水文地质特征及其控气作用[J].天然气工业,2016,36(2):36-44.XU Rui,TANG Dazhen,TAO Shu,et al.Hydrogeological characteristics of CBM reservoirs and their controlling effects in Anze Block,Qinshui Basin[J].Natural Gas Industry,2016,36(2):36-44.