沁水盆地石炭—二叠系煤系地层游离气多赋存类型依存关系定量分析
|
摘要
沁水盆地煤系地层丰富的天然气资源为其提供了形成大中型气藏的物质基础。该地区煤成气经历了复杂的生、运、聚、散等一系列复杂地质过程,导致其赋存状态多样,散失、聚集、溶解、扩散状况复杂。该专题的研究,不仅了丰富天然气成藏理论,而且在实践中直接与天然气评价和勘探目标选择密切相关,对沁水盆地天然气成藏研究有着重要的意义,为实现本区煤层气与游离气合理共采的目标奠定了理论基础。
本文总结出了沁水盆地煤系地层天然气吸附态、游离态、溶解态的赋存状态及其因压力、温度、构造运动等原因发生相互转化的规律,并以天然气运聚动平衡理论为指导,进一步完善和发展了天然气运聚和成藏的定量研究方法,推进了天然气成藏的定量化研究,并发现了天然气成藏过程中“供气”与“散失”消长关系和动态演化特征。通过分析和总结天然气运聚原理,恰当应用地层埋藏史模型、热史模型、生烃模型、排烃模型、吸附模型、水溶解气模型、聚集模型、断层散失模型和圈闭聚集模型等多种数学地质模型,并在此基础上进行更为精细的数值模拟,得到吸附气量、溶解气量、散失气量、可供聚集气量和圈闭资源量演化史等针对性和实用性较强的研究成果,并为动态聚集条件评价提供依据。
Coal Measure Strata in Qinshui Basin are rich in natural gas resources which provide material foundation for forming medium-large gas pools. Coal-formed gas in this region has experienced complex geological process such as generation, transportation, aggregation and losing which lead to the diversity of occurrence and the complexity of conditions of loss, accumulation, dissolution and diffusion. This project can not only enrich gas accumulation theory, but also establish the direct relationship between evaluation and selection of exploration target of natural gas, which are of great significance to the study of natural gas accumulation in Qinshui Basin. Besides, this project found theoretical principle for the achievement of reasonable co-mining of coalbed methane and free gas.
This paper summarizes the occurrence states of coal-formed natural gas in Qinshui basin such as absorption state, free state and dissolved state and the law of mutual transformation between those states owing to pressure, temperature and tectonic movements; and the quantitative methods for natural gas migration and accumulation have got further improvement and development together with the guide of the theory of the dynamic balance of natural gas migration and accumulation, the quantitative research of accumulation of natural gas has been promoted, what is more, this paper also describes the trade-off relationship and dynamic evolution characteristics between "Gas Supply" and "Dissipation" in the process of gas accumulation. Through analyzing and summarizing the principle of natural gas migration together with the proper application of many geomathematical geology models such as Burial History model, Thermal History model, Hydrocarbon-Generating model, Hydrocarbon-Expulsion model, Adsorption model, Water-Dissolved gas model, Accumulation model, Fault-Lost model and Trap-Aggregation model, furthermore, we took on more elaborate numerical simulation which leads to strong pointed and practical achievement such as adsorption quantity, dissolved gas, gas diffusing amount, gas available for accumulation and history of trap resource quantity, which provide foundation for dynamic accumulation condition assessment.
本文总结出了沁水盆地煤系地层天然气吸附态、游离态、溶解态的赋存状态及其因压力、温度、构造运动等原因发生相互转化的规律,并以天然气运聚动平衡理论为指导,进一步完善和发展了天然气运聚和成藏的定量研究方法,推进了天然气成藏的定量化研究,并发现了天然气成藏过程中“供气”与“散失”消长关系和动态演化特征。通过分析和总结天然气运聚原理,恰当应用地层埋藏史模型、热史模型、生烃模型、排烃模型、吸附模型、水溶解气模型、聚集模型、断层散失模型和圈闭聚集模型等多种数学地质模型,并在此基础上进行更为精细的数值模拟,得到吸附气量、溶解气量、散失气量、可供聚集气量和圈闭资源量演化史等针对性和实用性较强的研究成果,并为动态聚集条件评价提供依据。
Coal Measure Strata in Qinshui Basin are rich in natural gas resources which provide material foundation for forming medium-large gas pools. Coal-formed gas in this region has experienced complex geological process such as generation, transportation, aggregation and losing which lead to the diversity of occurrence and the complexity of conditions of loss, accumulation, dissolution and diffusion. This project can not only enrich gas accumulation theory, but also establish the direct relationship between evaluation and selection of exploration target of natural gas, which are of great significance to the study of natural gas accumulation in Qinshui Basin. Besides, this project found theoretical principle for the achievement of reasonable co-mining of coalbed methane and free gas.
This paper summarizes the occurrence states of coal-formed natural gas in Qinshui basin such as absorption state, free state and dissolved state and the law of mutual transformation between those states owing to pressure, temperature and tectonic movements; and the quantitative methods for natural gas migration and accumulation have got further improvement and development together with the guide of the theory of the dynamic balance of natural gas migration and accumulation, the quantitative research of accumulation of natural gas has been promoted, what is more, this paper also describes the trade-off relationship and dynamic evolution characteristics between "Gas Supply" and "Dissipation" in the process of gas accumulation. Through analyzing and summarizing the principle of natural gas migration together with the proper application of many geomathematical geology models such as Burial History model, Thermal History model, Hydrocarbon-Generating model, Hydrocarbon-Expulsion model, Adsorption model, Water-Dissolved gas model, Accumulation model, Fault-Lost model and Trap-Aggregation model, furthermore, we took on more elaborate numerical simulation which leads to strong pointed and practical achievement such as adsorption quantity, dissolved gas, gas diffusing amount, gas available for accumulation and history of trap resource quantity, which provide foundation for dynamic accumulation condition assessment.
引文
[1]刘焕杰.山西南部煤层气地质[M].徐州：中国矿业大学出版社,1998
[2]张建博,王红岩.山西沁水盆地煤层气有利区预测[M].徐州：中国矿业大学出版社,1999
[3]武晓春,庞雄奇.水溶气资源富集的主控因素及其评价方法探讨[J].天然气地球科学,2003,14(5)：416-421
[4]陈刚.沁水盆地向斜型水封气藏形成条件探讨[J].石油天然气地质,1998,19(4)：302-306
[5]魏书宏,韩少明.沁水煤田南部煤层气构造控气特征研究[J].煤田地质与勘探,2003,31(3)：30-31
[6]任战利,肖晖.沁水盆地中生代构造热事件发生时期的确定[J].石油勘探与开发,2005,32(1)：43-47
[7]任战利,肖晖.沁水盆地新生代抬升冷却事件的确定[J].石油与天然气地质,2005,26(1)：109-113
[8]李德.沁水煤田南部煤层气赋存及开发[J].山西煤炭,2003,23(3)：33-47
[9]崔思华,彭秀丽.沁水煤层气田煤层气成藏条件分析[J].天然气工业,2004,24(5)：14-16
[10]张建博,王红岩.沁水煤成气有利区预测[M].徐州：中国矿业大学出版社,2001
[11]李伟,张枝焕.沁水盆地石炭-二叠系煤层生排烃史分析[J].沉积学报,2005,23(2)：337-344
[12]承金,汪新文.山西沁水盆地热史演化特征[J].现代地质,2009,23(6)：1093-1099
[13]郝石生,黄志龙,高耀斌,轻烃扩散系数及天然气运聚动平衡原理,石油学报,1991.(3)
[14]郝石生,黄志龙,杨家琦,天然气运聚动平衡及其应用,北京：石油工业出版社,1994,：54-56
[15]吴中海,吴珍汉.鄂尔多斯、沁水盆地晚新生代隆升—剥蚀历史[J].地质科技情报.2001,20(3)：16-20.
[16]任战利,赵重远.鄂尔多斯盆地与沁水盆地中生代晚期地温场对比研究[J].沉积学报.1997,15(2)：134-137.
[17]孙占学,张文.沁水盆地大地热流与地温场特征[J].地球物理学报.2006,49(1)：130-14.
[18]陈刚,刘林玉.沁水盆地古生界天然气圈闭条件分析[J].西北地质.1998,19(4)：34-38.
[19]接铭训,李明宅.沁水盆地南部煤成气勘探前景[J].勘探家.2000,5(2)：39-42.
[20]陈刚.沁水盆地向斜型水封气藏形成条件探讨[J].石油与天然气地质.1998,19(4)：302-306.
[21]任战利,肖晖.沁水盆地新生代抬升冷却事件的确定[J].石油与天然气地质,2005,26(1)：109-113.
[22]赵庆波.煤成气地质与勘探技术[M].北京：石油工业出版社,1999.
[23]张建博,王红岩.沁水煤成气有利区预测[M].徐州：中国矿业大学出版社,2001.
[24]任战利,赵重远.沁水盆地中生代晚期构造热事件[J].石油与天然气地质.1999,20(1),46-48.
[25]承金,汪新文.山西沁水盆地热史演化特征[J].现代地质.2009,23(6),1093-1099.
[26]山西省地质矿产局.山西省区域地质志[M].北京：地质出版社,1989.
[27]Magoon L.B, Dow W.G主编.含油气系统—从烃源岩到圈闭[M].张刚,蔡希源,高永生译.北京：石油工业出版社.1998：3-25.
[28]白玉宝.山西沁水盆地南缘奥陶—石炭系油气远景评价[J].西安地质学院学报.1995,17(2)：39-43
[29]郝石生,黄志龙.天然气盖层实验研究及评价[J].沉积学报.1991,(4).
[30]郝石生,柳广弟.天然气资源评价的运聚动平衡模型[J].石油勘探与开发.1993,(3).
[31]秦建中,贾蓉芬.华北地区煤系烃源层油气生成、运移、评价[M].北京：科学出版社.2000.
[32]Lin Yuxiang and Ni Guangbao. Fuzzy Identification of Surface Geochemical Abnomality, System Science and Its Application.Tianjin People's Publishing House, 1998,7.
[33]Bradley, J.S. etal. Abnormal formation pressure[J]. AAPG Bulletin,1975,59: 957-973.
[34]Chapman, R.E.. Mechanical versus thermal cause of abnormally high pore pressure in shale[J]. AAPG Bulletin,1980,64:2079-2083.
[35]Hunt J. M.. Generation and Migration of petroleum from abnormally pressured fluid compartments[J]. AAPG Bulletin,1990,74 (1):1-12.
[36]Green P F, Duddy IR, Gleadow A JW, et al. Thermal annealing of fission tracks in apatite 4. quantative modeling techniques and extension to geological timescales [J]. Chemical Geology,1989,79:155-182.
[37]Pashin J C,Groshong Jr R H.Structural Control of Coalbed Methane Production in Alabama[J].International Journal of Coal Geology,1998,38(1):89-113.
[38]Duddy I R, Green P F,Laslett GM, et al.Thermal annealing of fission tracks in apatite 3. variable temperature behaviour[J]. Chemical Geology,1988,78:25-38.
[39]秦勇,张德民,傅雪海,等.沁水盆地中～南部现代构造应力场与煤储层物性关系之探讨[J].地质论评,1999,45(6)：5762583.
[40]陈金刚,张景飞.构造对高煤级煤储层渗透率的系统控制效应-以沁水盆地为例[J],天然气地球科学,2007年2月第18卷1期
[41]宋岩,王喜双.新构造运动对天然气晚期成藏的控制作用[J].天然气地球科学,2003,14(2)：1032106.
[42]邓攀,魏国齐,杨泳.储层构造裂缝定量预测中地质数学模型的建立与应用研究[J].天然气地球科学,2006,17(4)：480.
[43]刘焕杰,秦勇,桑树勋.山西南部煤层气地质[M].徐州：中国矿业大学出版社,1998：11235.
[44]Hobbs D W. The formation of tension joints in sedimentaryrocks:A n exp lanation[J]. Geo logical magazine,1967,104:5502556.
[45]任铁扣,刘建军,李崇焕.山西沁水盆地古生界天然气地质综合评价.
[46]武晓春,庞雄奇,于兴河.水溶气资源富集的主控因素及其评价方法探讨.天然气地球科学.2003.10
[47]徐思煌.水溶气非常规资源及其脱溶成藏.地质科技情报.2010.1
[48]单秀琴.沁水盆地煤层储集性能.石油与天然气地质.1998.12
[49]段毅,吴保祥,郑朝阳.山西沁水盆地煤生烃动力学研究.科学通报.2005.7
[50]李德.沁水煤田南部煤层气赋存及开发.山西煤炭.2003.9
[51]彭秀丽,鲜保安,崔思华.沁水煤层气田煤层气成藏条件分析.天然气工业.2004.5
[52]任冬梅,张烈辉,陈军.煤层气藏与常规天然气藏地质及开采特征比较.西南石油学院学报.2001.10
[53]田小川,孙以剑,刘建军.沁水盆地南部煤层气富集规律及有利区带井位研究.2008
[54]李伟,张枝焕,朱雷.山西沁水盆地石炭—二叠系煤层生排烃史分析.沉积学报.2005.6
[55]胡国艺,关辉,蒋登文.山西沁水煤层气田煤层气成藏条件分析.中国地质.2004.5
[56]肖晖,任战利,崔军平.Carboniferous-Permian coalbed methane-accumulating stages in the Qinshui basin Shanxi.中国地质.2007.3
[2]张建博,王红岩.山西沁水盆地煤层气有利区预测[M].徐州：中国矿业大学出版社,1999
[3]武晓春,庞雄奇.水溶气资源富集的主控因素及其评价方法探讨[J].天然气地球科学,2003,14(5)：416-421
[4]陈刚.沁水盆地向斜型水封气藏形成条件探讨[J].石油天然气地质,1998,19(4)：302-306
[5]魏书宏,韩少明.沁水煤田南部煤层气构造控气特征研究[J].煤田地质与勘探,2003,31(3)：30-31
[6]任战利,肖晖.沁水盆地中生代构造热事件发生时期的确定[J].石油勘探与开发,2005,32(1)：43-47
[7]任战利,肖晖.沁水盆地新生代抬升冷却事件的确定[J].石油与天然气地质,2005,26(1)：109-113
[8]李德.沁水煤田南部煤层气赋存及开发[J].山西煤炭,2003,23(3)：33-47
[9]崔思华,彭秀丽.沁水煤层气田煤层气成藏条件分析[J].天然气工业,2004,24(5)：14-16
[10]张建博,王红岩.沁水煤成气有利区预测[M].徐州：中国矿业大学出版社,2001
[11]李伟,张枝焕.沁水盆地石炭-二叠系煤层生排烃史分析[J].沉积学报,2005,23(2)：337-344
[12]承金,汪新文.山西沁水盆地热史演化特征[J].现代地质,2009,23(6)：1093-1099
[13]郝石生,黄志龙,高耀斌,轻烃扩散系数及天然气运聚动平衡原理,石油学报,1991.(3)
[14]郝石生,黄志龙,杨家琦,天然气运聚动平衡及其应用,北京：石油工业出版社,1994,：54-56
[15]吴中海,吴珍汉.鄂尔多斯、沁水盆地晚新生代隆升—剥蚀历史[J].地质科技情报.2001,20(3)：16-20.
[16]任战利,赵重远.鄂尔多斯盆地与沁水盆地中生代晚期地温场对比研究[J].沉积学报.1997,15(2)：134-137.
[17]孙占学,张文.沁水盆地大地热流与地温场特征[J].地球物理学报.2006,49(1)：130-14.
[18]陈刚,刘林玉.沁水盆地古生界天然气圈闭条件分析[J].西北地质.1998,19(4)：34-38.
[19]接铭训,李明宅.沁水盆地南部煤成气勘探前景[J].勘探家.2000,5(2)：39-42.
[20]陈刚.沁水盆地向斜型水封气藏形成条件探讨[J].石油与天然气地质.1998,19(4)：302-306.
[21]任战利,肖晖.沁水盆地新生代抬升冷却事件的确定[J].石油与天然气地质,2005,26(1)：109-113.
[22]赵庆波.煤成气地质与勘探技术[M].北京：石油工业出版社,1999.
[23]张建博,王红岩.沁水煤成气有利区预测[M].徐州：中国矿业大学出版社,2001.
[24]任战利,赵重远.沁水盆地中生代晚期构造热事件[J].石油与天然气地质.1999,20(1),46-48.
[25]承金,汪新文.山西沁水盆地热史演化特征[J].现代地质.2009,23(6),1093-1099.
[26]山西省地质矿产局.山西省区域地质志[M].北京：地质出版社,1989.
[27]Magoon L.B, Dow W.G主编.含油气系统—从烃源岩到圈闭[M].张刚,蔡希源,高永生译.北京：石油工业出版社.1998：3-25.
[28]白玉宝.山西沁水盆地南缘奥陶—石炭系油气远景评价[J].西安地质学院学报.1995,17(2)：39-43
[29]郝石生,黄志龙.天然气盖层实验研究及评价[J].沉积学报.1991,(4).
[30]郝石生,柳广弟.天然气资源评价的运聚动平衡模型[J].石油勘探与开发.1993,(3).
[31]秦建中,贾蓉芬.华北地区煤系烃源层油气生成、运移、评价[M].北京：科学出版社.2000.
[32]Lin Yuxiang and Ni Guangbao. Fuzzy Identification of Surface Geochemical Abnomality, System Science and Its Application.Tianjin People's Publishing House, 1998,7.
[33]Bradley, J.S. etal. Abnormal formation pressure[J]. AAPG Bulletin,1975,59: 957-973.
[34]Chapman, R.E.. Mechanical versus thermal cause of abnormally high pore pressure in shale[J]. AAPG Bulletin,1980,64:2079-2083.
[35]Hunt J. M.. Generation and Migration of petroleum from abnormally pressured fluid compartments[J]. AAPG Bulletin,1990,74 (1):1-12.
[36]Green P F, Duddy IR, Gleadow A JW, et al. Thermal annealing of fission tracks in apatite 4. quantative modeling techniques and extension to geological timescales [J]. Chemical Geology,1989,79:155-182.
[37]Pashin J C,Groshong Jr R H.Structural Control of Coalbed Methane Production in Alabama[J].International Journal of Coal Geology,1998,38(1):89-113.
[38]Duddy I R, Green P F,Laslett GM, et al.Thermal annealing of fission tracks in apatite 3. variable temperature behaviour[J]. Chemical Geology,1988,78:25-38.
[39]秦勇,张德民,傅雪海,等.沁水盆地中～南部现代构造应力场与煤储层物性关系之探讨[J].地质论评,1999,45(6)：5762583.
[40]陈金刚,张景飞.构造对高煤级煤储层渗透率的系统控制效应-以沁水盆地为例[J],天然气地球科学,2007年2月第18卷1期
[41]宋岩,王喜双.新构造运动对天然气晚期成藏的控制作用[J].天然气地球科学,2003,14(2)：1032106.
[42]邓攀,魏国齐,杨泳.储层构造裂缝定量预测中地质数学模型的建立与应用研究[J].天然气地球科学,2006,17(4)：480.
[43]刘焕杰,秦勇,桑树勋.山西南部煤层气地质[M].徐州：中国矿业大学出版社,1998：11235.
[44]Hobbs D W. The formation of tension joints in sedimentaryrocks:A n exp lanation[J]. Geo logical magazine,1967,104:5502556.
[45]任铁扣,刘建军,李崇焕.山西沁水盆地古生界天然气地质综合评价.
[46]武晓春,庞雄奇,于兴河.水溶气资源富集的主控因素及其评价方法探讨.天然气地球科学.2003.10
[47]徐思煌.水溶气非常规资源及其脱溶成藏.地质科技情报.2010.1
[48]单秀琴.沁水盆地煤层储集性能.石油与天然气地质.1998.12
[49]段毅,吴保祥,郑朝阳.山西沁水盆地煤生烃动力学研究.科学通报.2005.7
[50]李德.沁水煤田南部煤层气赋存及开发.山西煤炭.2003.9
[51]彭秀丽,鲜保安,崔思华.沁水煤层气田煤层气成藏条件分析.天然气工业.2004.5
[52]任冬梅,张烈辉,陈军.煤层气藏与常规天然气藏地质及开采特征比较.西南石油学院学报.2001.10
[53]田小川,孙以剑,刘建军.沁水盆地南部煤层气富集规律及有利区带井位研究.2008
[54]李伟,张枝焕,朱雷.山西沁水盆地石炭—二叠系煤层生排烃史分析.沉积学报.2005.6
[55]胡国艺,关辉,蒋登文.山西沁水煤层气田煤层气成藏条件分析.中国地质.2004.5
[56]肖晖,任战利,崔军平.Carboniferous-Permian coalbed methane-accumulating stages in the Qinshui basin Shanxi.中国地质.2007.3
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |