贵州省三大煤田煤层气地质及开发潜力对比分析
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摘要
为了对比评价六盘水煤田、织纳煤田、黔北煤田的煤层气开发潜力,以上述3个煤田为研究对象,分析了其构造特征、煤系地层及煤层发育特征、煤储层特征、煤及煤层气资源量,指出了物质基础和生气条件的差异性。研究结果表明:六盘水煤田煤层气资源量为13 895.26×10~8m~3,煤层气平均资源丰度为2.26×10~8m~3/km~2,煤层气勘探程度最高;织纳煤田煤层气资源量为7 002.80×10~8m~3,煤层气平均资源丰度为1.41×10~8m~3/km~2,煤层气勘探程度较高;黔北煤田煤层气资源量为7 392.15×10~8m~3,平均资源丰度为0.66×10~8m~3/km~2,但煤层气勘探程度较低。结论认为,六盘水煤田开发潜力最大,织纳煤田开发潜力较高,黔北煤田开发潜力最小。
In order to compare and evaluate the development potential of coalbed methane(CBM) in Liupanshui,Zhi'na, and Qianbei coalfields, Guizhou Province, this study took these three fields as examples, and analyzed their structural and development characteristics of coal-bearing strata and coal beds, reservoir characteristics, and coal and CBM resources, and pointed out the difference between their material base and gas-generating conditions. It is found that in Liupanshui Coalfield, there are CBM resources of 13 895.26 × 10~8 m~3, with average resource abundance of 2.26× 10~8 m~3/km~2, and its CBM exploration degree is the highest; in Zhi'na field, CBM resources of 7002.80 × 10~8 m~3, average resource abundance of 1.41 × 10~8 m~3/km~2, and higher CBM exploration degree; and in Qianbei field, CBM resources of 7392.15 × 10~8 m~3, average resource abundance of 0.66 × 10~8 m~3/km~2, and lower exploration degree. In conclusion,the development potential of Liupanshui field is the greatest, followed by Zhi'na field, and that of Qianbei field is the least.
In order to compare and evaluate the development potential of coalbed methane(CBM) in Liupanshui,Zhi'na, and Qianbei coalfields, Guizhou Province, this study took these three fields as examples, and analyzed their structural and development characteristics of coal-bearing strata and coal beds, reservoir characteristics, and coal and CBM resources, and pointed out the difference between their material base and gas-generating conditions. It is found that in Liupanshui Coalfield, there are CBM resources of 13 895.26 × 10~8 m~3, with average resource abundance of 2.26× 10~8 m~3/km~2, and its CBM exploration degree is the highest; in Zhi'na field, CBM resources of 7002.80 × 10~8 m~3, average resource abundance of 1.41 × 10~8 m~3/km~2, and higher CBM exploration degree; and in Qianbei field, CBM resources of 7392.15 × 10~8 m~3, average resource abundance of 0.66 × 10~8 m~3/km~2, and lower exploration degree. In conclusion,the development potential of Liupanshui field is the greatest, followed by Zhi'na field, and that of Qianbei field is the least.
引文
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[9]金军，徐宏杰，桑树勋，等.贵州省黔北煤田含煤地层特征分析[J].中国煤炭地质，2015,27(6):1-7.Jin Jun,Xu Hongjie,Sang Shuxun,et al.Coal-bearing Strata Characteristic Analysis in Qianbei Coalfield[J].Coal Geology of China,2015,27(6):1-7.
[10]郑长东，秦勇，杨兆彪，等.黔北煤田长岗向斜煤储层特征与压裂可改造性研究[J].煤炭科学技术，2018,46(9):208-216.6234Zheng Changdong,Qin Yong,Yang Zhaobiao,et al.Study on coal reservoir features and fracturing reconstruction in Changgang Syncline of Qianbei Coalfield[J].Coal Science and Technology,2018,46(9):208-216.
[11]易同生，高为，周培明.贵州省煤层气资源特征及开发技术[J].中国煤炭地质，2018,30(6):35-40.Yi Tongsheng,Gao Wei,Zhou Peiming.CBM Resource Features and Exploitation Technology in Guizhou Province[J].Coal Geology of China,2018,30(6):35-40.
[12]黄文，李军，黄华州.贵州保田-青山区块煤储层特征及煤层气开发条件研究[J].中国煤炭地质，2008,20(2):20-23.Huang Wen,Li Jun,Huang Huazhou.A Study on Coal Seam Reservoir Characteristics and CBM Exploitation Condition in Baotian-Qingshan Region,Guizhou[J].Coal Geology of China,2008,20(2):20-23.
[2]唐显贵.贵州省煤炭资源赋存规律[J].煤田地质与勘探，2012,40(5):1-5.Tang Xiangui.Occurrence regularities of coal resources in Guizhou Province[J].Coal Geology and Exploration,2012,40(5):1-5.
[3]杨瑞琴，唐显贵.贵州省六盘水煤田含煤地层特征分析[J].中国煤炭地质，2014,26(7):28-32.Yang Ruiqin,Tang Xiangui.Coal-bearing Strata Characteristic Analysis in Lupanshui Coalfield,Guizhou Province[J].Coal Geology of China,2014,26(7):28-32.
[4]李凯，易旺.贵州省盘县地区龙潭组沉积特征及展布规律研究[J].天然气技术与经济，2019,13(2):22-26.Li Kai,Yi Wang.Sedimentary characteristics and distribution laws of Longtan Formation in Panxian County of Guizhou Province,China[J].Natural Gas Technology and Economy,2019,13(2):22-26.
[5]易同生，李新民.贵州省六盘水煤田盘关向斜煤层气开发地质评价[J].中国煤炭地质，2006,18(2):30-32,39.Yi Tongsheng,Li Xinmin.Geological Review of CBM Exploitation in Panguan Syncline,Lupanshui Coalfield,Guizhou[J].Coal Geology of China,2006,18(2):30-32,39.
[6]徐宏杰，桑树勋，杨景芬，等.贵州省煤层气勘探开发现状与展望[J].煤炭科学技术，2016,44(2):1-7,196.Xu Hongjie,Sang Shuxun,Yang Jingfen,et al.Statusand expectation on coalbed methane exploration and developmen-tin Guizhou Province[J].Coal Science and Technology,2016,44(2):1-7,196.
[7]黄文，徐宏杰，张孟江，等.贵州省织纳煤田煤层特征及煤层气资源潜力[J].天然气工业，2013,33(8):25-30.Huang Wen,Xu Hongjie,Zhang Mengjiang,et al.Characteristics and CBM potentials of coal seams in the Zhina coalfield,Guizhou[J].Natural Gas Industry,2013,33(8):25-30.
[8]臧晓荣.贵州省织纳煤田煤炭资源潜力评价[J].中国煤炭地质，2014,26(3):6-11.Zang Xiaorong.Coal Resource Potential Evaluation in Zhijin-Nayong Coalfield,Guizhou Province[J].Coal Geology of China,2014,26(3):6-11.
[9]金军，徐宏杰，桑树勋，等.贵州省黔北煤田含煤地层特征分析[J].中国煤炭地质，2015,27(6):1-7.Jin Jun,Xu Hongjie,Sang Shuxun,et al.Coal-bearing Strata Characteristic Analysis in Qianbei Coalfield[J].Coal Geology of China,2015,27(6):1-7.
[10]郑长东，秦勇，杨兆彪，等.黔北煤田长岗向斜煤储层特征与压裂可改造性研究[J].煤炭科学技术，2018,46(9):208-216.6234Zheng Changdong,Qin Yong,Yang Zhaobiao,et al.Study on coal reservoir features and fracturing reconstruction in Changgang Syncline of Qianbei Coalfield[J].Coal Science and Technology,2018,46(9):208-216.
[11]易同生，高为，周培明.贵州省煤层气资源特征及开发技术[J].中国煤炭地质，2018,30(6):35-40.Yi Tongsheng,Gao Wei,Zhou Peiming.CBM Resource Features and Exploitation Technology in Guizhou Province[J].Coal Geology of China,2018,30(6):35-40.
[12]黄文，李军，黄华州.贵州保田-青山区块煤储层特征及煤层气开发条件研究[J].中国煤炭地质，2008,20(2):20-23.Huang Wen,Li Jun,Huang Huazhou.A Study on Coal Seam Reservoir Characteristics and CBM Exploitation Condition in Baotian-Qingshan Region,Guizhou[J].Coal Geology of China,2008,20(2):20-23.