华南地区海相页岩气差异富集构造模式
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摘要
华南海相页岩层系生烃后大多经历了多期复杂的构造叠加改造,形成了多类型的构造样式,且不同样式页岩气富集程度差异明显.通过对华南数十口页岩气探井及涪陵页岩气田300多口开发井的分析测试、测井及地震资料的详细解剖,并结合实钻效果分析,建立了一套直接与间接指标相结合适用于华南海相页岩含气性评价的指标体系;并针对华南典型的挤压构造背景,在重点考虑构造紧闭程度(宽缓、窄陡及破碎)和构造形态(正向、负向及斜向)差异性的基础上,提出了24种表征页岩气差异富集的构造模式.指出在区域构造背景相同的前提下,宽缓型构造模式是页岩气富集的最有利模式,窄陡型次之,破碎型最差.
Most of the marine shale strata in South China have undergone poly-cycle complex structural superimposition and reformation after hydrocarbon generation,forming many types of structural styles,and the enrichment degree of shale gas in different styles is obviously different.Based on the analysis,testing and the detailed anatomy of the logging and seismic data in dozens of shale gas exploration wells in South China,and more than 300 development wells in the Fuling shale gas fields,a set of direct and indirect indicators for shale gas bearing evaluation in South China are established combining with actual drilling results.Based on the typical background of extrusion structure in South China,focusing on the structural tightness(broad,narrow and steep,fractured)and structural forms(positive,negative and oblique),24 structural models representing the differential enrichment of shale gas are proposed.Under the premise of the same macroscopic structural background,the broad structural model is the most favorable mode for shale gas enrichment,followed by the narrow-steep type,and the fractured type is the worst.
Most of the marine shale strata in South China have undergone poly-cycle complex structural superimposition and reformation after hydrocarbon generation,forming many types of structural styles,and the enrichment degree of shale gas in different styles is obviously different.Based on the analysis,testing and the detailed anatomy of the logging and seismic data in dozens of shale gas exploration wells in South China,and more than 300 development wells in the Fuling shale gas fields,a set of direct and indirect indicators for shale gas bearing evaluation in South China are established combining with actual drilling results.Based on the typical background of extrusion structure in South China,focusing on the structural tightness(broad,narrow and steep,fractured)and structural forms(positive,negative and oblique),24 structural models representing the differential enrichment of shale gas are proposed.Under the premise of the same macroscopic structural background,the broad structural model is the most favorable mode for shale gas enrichment,followed by the narrow-steep type,and the fractured type is the worst.
引文
Bao,H.Y.,Zhang,B.Q.,Shu,Z.G.,et al.,2018.Application of Isotopic Thermochronology in Shale Gas Exploration and Development---Case from South China.Earth Science,43(6):1861-1871(in Chinese with English abstract).https://doi.org/10.3799/dqkx.2018.600
Bowker,K.A.,2007.Barnett Shale Gas Production,Fort Worth Basin:Issues and Discussion.AAPG Bulletin,91(4):523-533.https://doi.org/10.1306/06190606018
Curtis,J.B.,2002.Fractured Shale-Gas Systems.AAPG Bulletin,86(11):1921-1938.https://doi.org/10.1306/61eeddbe-173e-11d7-8645000102c1865d
Engelder,T.,Lash,G.G.,Uzcátegui,R.S.,2009.Joint Sets that Enhance Production from Middle and Upper Devonian Gas Shales of the Appalachian Basin.AAPG Bulletin,93(7):857-889.https://doi.org/10.1306/03230908032
Guo,T.L.,Zhang,H.R.,2014.Formation and Enrichment Mode of Jiaoshiba Shale Gas Field,Sichuan Basin.Petroleum Exploration and Development,41(1):28-36(in Chinese with English abstract).
Guo,W.,2018.Differentiation Analysis on Shale Gas Production of the Horizontal Wells in Sichuan Weiyuan Block.Science Technology and Engineering,18(1):228-233(in Chinese with English abstract).
Guo,X.S.,2014.Rules of Two-Factor Enrichment for Marine Shale Gas in Southern China---Understanding from the Longmaxi Formation Shale Gas in Sichuan Basin and Its Surrounding Area.Acta Geologica Sinica,88(7):1209-1218(in Chinese with English abstract).
Hu,D.F.,Zhang,H.R.,Ni,K.,et al,2014.Main Controlling Factors for Gas Preservation Conditions of Marine Shales in Southeastern Margins of the Sichuan Basin.Natural Gas Industry,34(6):17-23(in Chinese with English abstract).
Jin,Z.J.,Hu,Z.Q.,Gao,B.,et al,2016.Controlling Factors on the Enrichment and High Productivity of Shale Gas in the Wufeng-Longmaxi Formations,Southeastern Sichuan Basin.Earth Science Frontiers,23(1):1-10(in Chinese with English abstract).
Liu,H.L.,Wang,H.Y.,Fang,C.H.,et al,2016.The Formation Mechanism of Over-Pressure Reservoir and Target Screening Index of the Marine Shale in the South China.Earth Science Frontier,23(2):48-54(in Chinese with English abstract).
Liu,L.,Bao,H.Y.,Li,K.,et al.,2018.Evaluation of Gas Content in Shale Reservoirs and Analysis of Influencing Factors in Fuling Shale Gas Field.Pertoleum Geology and Experiment,40(1):58-63,70(in Chinese with English abstract).
Ma,X.H.,Xie,J.,2018.The Progress and Prospects of Shale Gas Exploration and Exploitation in Southern Sichuan Basin,NW China.Petroleum Exploration and Development,45(1):161-169(in Chinese with English abstract).
Pan,R.F.,Gong,Q.,Yan,J.,et al.,2016.Elements and Gas Enrichment Laws of Sweet Spots in Shale Gas Reservoir:A Case Study of the Longmaxi Fm in Changning Block,Sichuan Basin.Natural Gas Industry,36(3):7-13(in Chinese with English abstract).
Shu,L.S.,Faure,M.,Yu,J.H.,et al.,2011.Geochronological and Geochemical Features of the Cathaysia Block(South China):New Evidence for the Neoproterozoic Breakup of Rodinia.Precambrian Research,187(3-4):263-276.https://doi.org/10.1016/j.precamres.2011.03.003
Shu,Y.,Lu,Y.C.,Bao,H.Y.,et al,2018.Three Typical Types of Shale Gas Preservation in the Fuling Shale Gas Field,Sichuan Basin.Natural Gas Industry,38(3):31-40(in Chinese with English abstract).
Sun,J.,Bao,H.Y.,2018.Comprehensive Characterization of Shale Gas Reservoirs:A Case Study from Fuling Shale Gas Field.Perroleum Geology and Experiment,48(1):1-12(in Chinese with English abstract).
Zhai,G.Y.,Wang,Y.F.,Bao,S.J.,et al.,2017.Major Factors Controlling the Accumulation and High Productivity of Marine Shale Gas and Prospect Forecast in Southern China.EarthScience,42(7):1057-1068(in Chinese with English abstract).https://doi.org/10.3799/dqkx.2017.085
Zhao,W.Z.,Li,J.Z.,Yang,T.,et al,2016.Geological Difference and Its Significance of Marine Shale Gases in South China.Petroleum Exploration and Development,43(4):499-510(in Chinese with English abstract).
包汉勇,张柏桥,舒志国,等,2018.同位素热年代学在页岩气勘探开发中的应用:以华南地区为例.地球科学,43(6):1861-1871.https://doi.org/10.3799/dqkx.2018.600
郭彤楼,张汉荣,2014.四川盆地焦石坝页岩气田形成与富集高产模式.石油勘探与开发,41(1):28-36.
郭伟,2018.四川威远区块页岩气水平井产量差异分析.科学技术与工程,18(1):228-233.
郭旭升,2014.南方海相页岩气“二元富集”规律---四川盆地及周缘龙马溪组页岩气勘探实践认识.地质学报,88(7):1209-1218.
胡东风,张汉荣,倪楷,等,2014.四川盆地东南缘海相页岩气保存条件及其主控因素.天然气工业,34(6):17-23.
金之钧,胡宗全,高波,等,2016.川东南地区五峰组-龙马溪组页岩气富集与高产控制因素.地学前缘,23(1):1-10.
刘洪林,王红岩,方朝合,等,2016.中国南方海相页岩气超压机制及选区指标研究.地学前缘,23(2):48-54.
刘莉,包汉勇,李凯,等,2018.页岩储层含气性评价及影响因素分析---以涪陵页岩气田为例.石油实验地质,40(1):58-63,70.
马新华,谢军,2018.川南地区页岩气勘探开发进展及发展前景.石油勘探与开发,45(1):161-169.
潘仁芳,龚琴,鄢杰,等,2016.页岩气藏“甜点”构成要素及富气特征分析---以四川盆地长宁地区龙马溪组为例.天然气工业,36(3):7-13.
舒逸,陆永潮,包汉勇,等,2018.四川盆地涪陵页岩气田3种典型页岩气保存类型.天然气工业,38(3):31-40.
孙健,包汉勇,2018.岩气储层综合表征技术研究进展---以涪陵页岩气为例.石油试验地质,48(1):1-12.
翟刚毅,王玉芳,包书景,等,2017.我国南方海相页岩气富集高产主控因素及前景预测.地球科学,42(7):1057-1068.https://doi.org/10.3799/dqkx.2017.085
赵文智,李建忠,杨涛,等,2016.中国南方海相页岩气成藏差异性比较与意义.石油勘探与开发,43(4):499-510.
Bowker,K.A.,2007.Barnett Shale Gas Production,Fort Worth Basin:Issues and Discussion.AAPG Bulletin,91(4):523-533.https://doi.org/10.1306/06190606018
Curtis,J.B.,2002.Fractured Shale-Gas Systems.AAPG Bulletin,86(11):1921-1938.https://doi.org/10.1306/61eeddbe-173e-11d7-8645000102c1865d
Engelder,T.,Lash,G.G.,Uzcátegui,R.S.,2009.Joint Sets that Enhance Production from Middle and Upper Devonian Gas Shales of the Appalachian Basin.AAPG Bulletin,93(7):857-889.https://doi.org/10.1306/03230908032
Guo,T.L.,Zhang,H.R.,2014.Formation and Enrichment Mode of Jiaoshiba Shale Gas Field,Sichuan Basin.Petroleum Exploration and Development,41(1):28-36(in Chinese with English abstract).
Guo,W.,2018.Differentiation Analysis on Shale Gas Production of the Horizontal Wells in Sichuan Weiyuan Block.Science Technology and Engineering,18(1):228-233(in Chinese with English abstract).
Guo,X.S.,2014.Rules of Two-Factor Enrichment for Marine Shale Gas in Southern China---Understanding from the Longmaxi Formation Shale Gas in Sichuan Basin and Its Surrounding Area.Acta Geologica Sinica,88(7):1209-1218(in Chinese with English abstract).
Hu,D.F.,Zhang,H.R.,Ni,K.,et al,2014.Main Controlling Factors for Gas Preservation Conditions of Marine Shales in Southeastern Margins of the Sichuan Basin.Natural Gas Industry,34(6):17-23(in Chinese with English abstract).
Jin,Z.J.,Hu,Z.Q.,Gao,B.,et al,2016.Controlling Factors on the Enrichment and High Productivity of Shale Gas in the Wufeng-Longmaxi Formations,Southeastern Sichuan Basin.Earth Science Frontiers,23(1):1-10(in Chinese with English abstract).
Liu,H.L.,Wang,H.Y.,Fang,C.H.,et al,2016.The Formation Mechanism of Over-Pressure Reservoir and Target Screening Index of the Marine Shale in the South China.Earth Science Frontier,23(2):48-54(in Chinese with English abstract).
Liu,L.,Bao,H.Y.,Li,K.,et al.,2018.Evaluation of Gas Content in Shale Reservoirs and Analysis of Influencing Factors in Fuling Shale Gas Field.Pertoleum Geology and Experiment,40(1):58-63,70(in Chinese with English abstract).
Ma,X.H.,Xie,J.,2018.The Progress and Prospects of Shale Gas Exploration and Exploitation in Southern Sichuan Basin,NW China.Petroleum Exploration and Development,45(1):161-169(in Chinese with English abstract).
Pan,R.F.,Gong,Q.,Yan,J.,et al.,2016.Elements and Gas Enrichment Laws of Sweet Spots in Shale Gas Reservoir:A Case Study of the Longmaxi Fm in Changning Block,Sichuan Basin.Natural Gas Industry,36(3):7-13(in Chinese with English abstract).
Shu,L.S.,Faure,M.,Yu,J.H.,et al.,2011.Geochronological and Geochemical Features of the Cathaysia Block(South China):New Evidence for the Neoproterozoic Breakup of Rodinia.Precambrian Research,187(3-4):263-276.https://doi.org/10.1016/j.precamres.2011.03.003
Shu,Y.,Lu,Y.C.,Bao,H.Y.,et al,2018.Three Typical Types of Shale Gas Preservation in the Fuling Shale Gas Field,Sichuan Basin.Natural Gas Industry,38(3):31-40(in Chinese with English abstract).
Sun,J.,Bao,H.Y.,2018.Comprehensive Characterization of Shale Gas Reservoirs:A Case Study from Fuling Shale Gas Field.Perroleum Geology and Experiment,48(1):1-12(in Chinese with English abstract).
Zhai,G.Y.,Wang,Y.F.,Bao,S.J.,et al.,2017.Major Factors Controlling the Accumulation and High Productivity of Marine Shale Gas and Prospect Forecast in Southern China.EarthScience,42(7):1057-1068(in Chinese with English abstract).https://doi.org/10.3799/dqkx.2017.085
Zhao,W.Z.,Li,J.Z.,Yang,T.,et al,2016.Geological Difference and Its Significance of Marine Shale Gases in South China.Petroleum Exploration and Development,43(4):499-510(in Chinese with English abstract).
包汉勇,张柏桥,舒志国,等,2018.同位素热年代学在页岩气勘探开发中的应用:以华南地区为例.地球科学,43(6):1861-1871.https://doi.org/10.3799/dqkx.2018.600
郭彤楼,张汉荣,2014.四川盆地焦石坝页岩气田形成与富集高产模式.石油勘探与开发,41(1):28-36.
郭伟,2018.四川威远区块页岩气水平井产量差异分析.科学技术与工程,18(1):228-233.
郭旭升,2014.南方海相页岩气“二元富集”规律---四川盆地及周缘龙马溪组页岩气勘探实践认识.地质学报,88(7):1209-1218.
胡东风,张汉荣,倪楷,等,2014.四川盆地东南缘海相页岩气保存条件及其主控因素.天然气工业,34(6):17-23.
金之钧,胡宗全,高波,等,2016.川东南地区五峰组-龙马溪组页岩气富集与高产控制因素.地学前缘,23(1):1-10.
刘洪林,王红岩,方朝合,等,2016.中国南方海相页岩气超压机制及选区指标研究.地学前缘,23(2):48-54.
刘莉,包汉勇,李凯,等,2018.页岩储层含气性评价及影响因素分析---以涪陵页岩气田为例.石油实验地质,40(1):58-63,70.
马新华,谢军,2018.川南地区页岩气勘探开发进展及发展前景.石油勘探与开发,45(1):161-169.
潘仁芳,龚琴,鄢杰,等,2016.页岩气藏“甜点”构成要素及富气特征分析---以四川盆地长宁地区龙马溪组为例.天然气工业,36(3):7-13.
舒逸,陆永潮,包汉勇,等,2018.四川盆地涪陵页岩气田3种典型页岩气保存类型.天然气工业,38(3):31-40.
孙健,包汉勇,2018.岩气储层综合表征技术研究进展---以涪陵页岩气为例.石油试验地质,48(1):1-12.
翟刚毅,王玉芳,包书景,等,2017.我国南方海相页岩气富集高产主控因素及前景预测.地球科学,42(7):1057-1068.https://doi.org/10.3799/dqkx.2017.085
赵文智,李建忠,杨涛,等,2016.中国南方海相页岩气成藏差异性比较与意义.石油勘探与开发,43(4):499-510.