礼乐盆地深水区新生代生物礁的发育条件与地震特征
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摘要
礼乐盆地位于南沙海域东缘,为新生代大型含油气盆地,勘探前景可观。以礼乐-巴拉望地块区域构造事件及古地理演化为指导,结合钻井、拖网等资料,对礼乐盆地地震剖面T100、T70、T50三个关键界面进行了解释,分析了T70、T50两个界面的地震特征及地质意义。论证了在晚渐新世至早中新世南海扩张时期,礼乐-巴拉望地块为远离物源的浅水环境,适宜碳酸盐岩沉积,碳酸盐岩的发育范围较为广泛。通过与邻区巴拉望盆地已证实生物礁对比,分析了礼乐盆地深水区生物礁的地震识别特征及平面展布规律。解决了礼乐盆地深水区是否存在大型储集体的问题,提升了礼乐盆地深水区的勘探潜力,为礼乐盆地下一步的油气勘探提供了有利的依据。
The Liyue Basin is a large-scale petroliferous basin in the southern South China Sea.Based on the detailed analysis of seismic profiles,wells and trawling data from the deepwater area of the basin,with reference to the regional tectonic events and paleogeographic evolution,the key interfaces of T100,T70 and T50 were interpreted from among the seismic profiles of the basin,especially the seismic characteristics and geological significance of the T70 and T50 interfaces.It is found that during the spreading of the South China Sea from late Oligocene to early Miocene,the Liyue-Palawan Block was a shallow water environment far from the provenance.It is doubtlessly suitable for deposition of carbonate rocks.Comparing with the reefs in the Palawan Basin next to it,it is found that the seismic characteristics of reefs in the deepwater area of the Liyue Basin are typical and easy to be identified.This study clarified the development conditions of large-scale reservoirs in deepwater area of the Liyue Basin and summarized the seismic characteristics and distribution pattern of the reef deposits in the deepwater basin.Upon the basis,the exploration potential of the deep water area of Liyue basin is valuated and predicted.
The Liyue Basin is a large-scale petroliferous basin in the southern South China Sea.Based on the detailed analysis of seismic profiles,wells and trawling data from the deepwater area of the basin,with reference to the regional tectonic events and paleogeographic evolution,the key interfaces of T100,T70 and T50 were interpreted from among the seismic profiles of the basin,especially the seismic characteristics and geological significance of the T70 and T50 interfaces.It is found that during the spreading of the South China Sea from late Oligocene to early Miocene,the Liyue-Palawan Block was a shallow water environment far from the provenance.It is doubtlessly suitable for deposition of carbonate rocks.Comparing with the reefs in the Palawan Basin next to it,it is found that the seismic characteristics of reefs in the deepwater area of the Liyue Basin are typical and easy to be identified.This study clarified the development conditions of large-scale reservoirs in deepwater area of the Liyue Basin and summarized the seismic characteristics and distribution pattern of the reef deposits in the deepwater basin.Upon the basis,the exploration potential of the deep water area of Liyue basin is valuated and predicted.
引文
[1]姚伯初,万玲,吴能友.大南海地区新生代板块构造活动[J].中国地质,2004,31(2):113-122.[YAO Bochu,WAN Ling,WU Nengyou.Cenozoic plate tectonic in Great South China Sea area[J].Geology in China,2004,31(2):113-122.]
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[8]张功成,王璞珺,吴景富,等.边缘海构造旋回:南海演化的新模式[J].地学前缘,2015,22(3):27-37.[ZHANG Gongcheng,WANG Pujun,WU Jingfu,et a1.Tectonic cycle of marginal oceanic basin:a new evolution model of the South China Sea[J].Earth Science Frontiers,2015,22(3):27-37.]
[9]李鹏春,赵中贤,张翠梅,等.南沙海域礼乐盆地沉积过程和演化[J].地球科学——中国地质大学学报,2011,36(5):837-844.[LI Pengchun,ZHAO Zhongxian,ZHANG Cuimei,et a1.Depositional process and evolution of Liyue Basin in Southern South China Sea[J].Earth Science:Journal of China University of Geosciences,2011,36(5):837-844.]
[10]丁巍伟,李家彪,等.南海南部陆缘礼乐盆地新生代的构造-沉积特征及伸展机制:来自NH973-2多道地震测线的证据[J].地球科学,2011,36(5):895-904.[DING Weiwei,LI Jiabiao,LI Mingbi.Seismic structure and extension model across the Reed Bank basin in the South Margin of South China Sea:evidence from NH973-2 multichannel seismic profile[J].Earth Science—Journal of China University of Gensciences,2011,36(5):895-904.]
[11]李颂,杨树春,仝志刚,等.南海南部礼乐盆地深水区烃源岩生烃潜力研究[J].天然气地球科学,2012,23(6):1070-1076.[LI Song,YANG Shuchun,TONG Zhigang,et al.Study on the hydrocarbon generation potential of source rocks in Lile basin,southern South China Sea[J].Natural Gas Geoscience,2012,23(6):1070-1076.]
[12]张莉,李文成,李国英,等.南沙东北部海域礼乐盆地含油气组合静态地质要素分析[J].中国地质,2004,31(3):320-324.[ZHANG Li,LI Wencheng,LI Guoying,et al.Analysis of static geological elements of petroleum-bearing combinations in the Lile basin,northeastern Nansha[J].Geology in China,2004,31(3):320-324.]
[13]孙龙涛,孙珍,詹文欢,等.南沙海域礼乐盆地油气资源潜力[J].地球科学—中国地质大学学报,2010,35(1):137-145.[SUN Long tao,SUN Zhen,ZHAN Wen huan,et al.Petroleum Potential Prediction of the Lile Basin in Nansha[J].Earth Science Journal of China University of Geosciences,2010,35(1):137-145.]
[14] Yongjian Yao,Hailing Liu,Chupeng Yang,et al.Characteristics and evolution of Cenozoic sediments in the Liyue Basin,SE South China Sea[J].Journal of Asian Earth Sciences,2012,60(8):114-129.
[15]王一博,张功成,赵志刚,等.南海边缘海构造旋回对沉积充填的控制——以礼乐盆地新生代沉积为例[J].石油学报,2016,37(4):474-482.[WANG Yibo,ZHANG Gongcheng,ZHAO Zhigang,et al.The control for tectonic cycle of marginal sea on sedimentary fill in South China Sea:a case study of Cenozoic sediment in Lile Basin[J].Acta Petrolei Sinica,2016,37(4):474-482.]
[16] Fournier F,Borgomano J,Montaggioni L F.Development patterns and controlling factors of Tertiary carbonatebuildups:Insights from high-resolution 3Dseismic and well datain the Malampayagas field(Offshore Palawan,Philippines)[J].Sedimentary Geology,2005.175:189-215.
[17] Francois Fournier and Jean Borgomano.Geological significance of seismic reflections and imaging of the reservoir architecture in the Malampayagas field(Philippines)[J].AAPG Bulletin,2007,91:235-258.
[18] Stephan Steuer,et al.Oligocene-Miocene carbonates and their role for constraining the rifting and collision history of the Dangerous Grounds,South China Sea[J].Marine and Petroleum Geology,2013,58:1-14.
[19] Stephan Steuer,et al.Time constraints on the evolution of southern Palawan Island,Philippines from onshore and offshore correlation of Miocene limestones[J].Journal of Asian Earth Sciences,2013,76:412-427.
[20] Biswas B.Frontier seismic geologic techniques and the exploration of the Miocene reefs in offshore Palawan,Philippines[J].Journal of Southeast Asian Earth Sciences,1986,1:191-204.
[21] Kudrass H R,Wiedicke M,Cepeck P,et al.Mesozoic and Cainozoic rocks dredged from the South China Sea(Reed Bank Area)and Sulu Sea and their significance for plate-tectonic reconstructions[J].Marine and Petroleum Geology,1986,3(1):19-30.
[22] Dieter Franke,Dimitri Savva,et al.The final rifting evolution in the South China Sea[J].Marine and Petroleum Geology,2013,58:704-720.
[23]姚永坚,杨楚鹏,李学杰,等.南海南部海域中中新世(T3界面)构造变革界面地震反射特征及构造含义[J].地球物理学报,2013,56(4):1274-1286.[YAO Yongjian,Yang Chupeng,Li Xuejie,et a1.The seismic reflection characteristics and tectonic significance of the tectonic revolutionary surface of mid—Miocene(T3seismic interface)in the southern South China Sea[J].Chinese Journal of Geophysics,2013,56(4):1274-1286.]
[24] Harold H.Williams.Play concepts-northwest Palawan,Philippines[J].Journal of Asian Earth Sciences,1997,15(2):251-273.
[25]米立军,曾清波,杨海长.东沙隆起珠江组生物礁类型及勘探方向[J].石油学报,2013,34(S2):24-31.[MI Lijun,ZENG Qingbo,YANG Haichang.Types of organic reef and exploration direction in Zhujiang Formation of dongsha uplift[J].Acta Petrolei Sinica,2012,34(S2):24-31.]
[26]吕彩丽.南沙海区新生代碳酸盐岩台地形成演化及油气意义[D].中国科学院研究生院(海洋研究所),2012.[LV Caili.Geological evolution and hydrocarbon potential of Cenozoic carbonate platforms,southern South China Sea[D].Graduate University of Chinese Academy of Sciences(Institute of Marine Research),2012.]
[27]魏喜,邓晋福,谢文彦,等.南海盆地演化对生物礁的控制及礁油气藏勘探潜力分析[J].地学前缘,2005,12(3):245-252.[WEI Xi,DENG Jinfu,XIE Wenyan,et al.Constraints on biogenetic reef formation during evolution of the South China Sea and exploration potential analysis[J].Earth Science Frontiers,2005,12(3):245-252.]
[2] Hall R.Cainozoic plate tectonic reconstruction of SE Asia[C]∥Fraser A J,Matthews S J,Murphy R W(Eds.).Petroleum Geology of Southeast Asia.Geological Society of London Special Publication,1997,126:11-23.
[3] Hutchison C S.Marginal basin evolution:the southern South China Sea[J].Marine and Petroleum Geology,2004(21):1129-1148.
[4] Taylor B,Hayes D E.Origin and history of the South China Sea Basin[C]∥In:Hayes D E(Ed.).The Tectonic and Geologic Evolution of Southeast Asian seas and Islands.Part 2,Geophysical Monograph,AGU,Washington,DC,1983:23-56.
[5] Briais A,Patriat P,Tapponnier P.Updated interpretation of magnetic anomalies and seafloor spreading stages in the South China Sea:implications for the Tertiary tectonics of Southeast Asia[J].Journal of Geophysical Research,1993,98(134):6299-6328.
[6] Schlfiter H U,Hinz K,Block M.Tectono-stratigraphic terranes and detachment faulting of the South China Sea and Sulu Sea[J].Marine Geology,1996,130(1/2):39-51,58-78.
[7]姚伯初,万玲,刘振湖.南海海域新生代沉积盆地构造演化的动力学特征及其油气资源[J].地球科学——中国地质大学学报,2004,29(5):543-549.[YAO Bochu,WAN Ling,LIU Zhenhu.Tectonic dynamics of Cenozoic sedimentary basins and hydrocarbon resources in the South China Sea[J].Earth Science:Journal of China University of Geosciences,2004,29(5):543-549.]
[8]张功成,王璞珺,吴景富,等.边缘海构造旋回:南海演化的新模式[J].地学前缘,2015,22(3):27-37.[ZHANG Gongcheng,WANG Pujun,WU Jingfu,et a1.Tectonic cycle of marginal oceanic basin:a new evolution model of the South China Sea[J].Earth Science Frontiers,2015,22(3):27-37.]
[9]李鹏春,赵中贤,张翠梅,等.南沙海域礼乐盆地沉积过程和演化[J].地球科学——中国地质大学学报,2011,36(5):837-844.[LI Pengchun,ZHAO Zhongxian,ZHANG Cuimei,et a1.Depositional process and evolution of Liyue Basin in Southern South China Sea[J].Earth Science:Journal of China University of Geosciences,2011,36(5):837-844.]
[10]丁巍伟,李家彪,等.南海南部陆缘礼乐盆地新生代的构造-沉积特征及伸展机制:来自NH973-2多道地震测线的证据[J].地球科学,2011,36(5):895-904.[DING Weiwei,LI Jiabiao,LI Mingbi.Seismic structure and extension model across the Reed Bank basin in the South Margin of South China Sea:evidence from NH973-2 multichannel seismic profile[J].Earth Science—Journal of China University of Gensciences,2011,36(5):895-904.]
[11]李颂,杨树春,仝志刚,等.南海南部礼乐盆地深水区烃源岩生烃潜力研究[J].天然气地球科学,2012,23(6):1070-1076.[LI Song,YANG Shuchun,TONG Zhigang,et al.Study on the hydrocarbon generation potential of source rocks in Lile basin,southern South China Sea[J].Natural Gas Geoscience,2012,23(6):1070-1076.]
[12]张莉,李文成,李国英,等.南沙东北部海域礼乐盆地含油气组合静态地质要素分析[J].中国地质,2004,31(3):320-324.[ZHANG Li,LI Wencheng,LI Guoying,et al.Analysis of static geological elements of petroleum-bearing combinations in the Lile basin,northeastern Nansha[J].Geology in China,2004,31(3):320-324.]
[13]孙龙涛,孙珍,詹文欢,等.南沙海域礼乐盆地油气资源潜力[J].地球科学—中国地质大学学报,2010,35(1):137-145.[SUN Long tao,SUN Zhen,ZHAN Wen huan,et al.Petroleum Potential Prediction of the Lile Basin in Nansha[J].Earth Science Journal of China University of Geosciences,2010,35(1):137-145.]
[14] Yongjian Yao,Hailing Liu,Chupeng Yang,et al.Characteristics and evolution of Cenozoic sediments in the Liyue Basin,SE South China Sea[J].Journal of Asian Earth Sciences,2012,60(8):114-129.
[15]王一博,张功成,赵志刚,等.南海边缘海构造旋回对沉积充填的控制——以礼乐盆地新生代沉积为例[J].石油学报,2016,37(4):474-482.[WANG Yibo,ZHANG Gongcheng,ZHAO Zhigang,et al.The control for tectonic cycle of marginal sea on sedimentary fill in South China Sea:a case study of Cenozoic sediment in Lile Basin[J].Acta Petrolei Sinica,2016,37(4):474-482.]
[16] Fournier F,Borgomano J,Montaggioni L F.Development patterns and controlling factors of Tertiary carbonatebuildups:Insights from high-resolution 3Dseismic and well datain the Malampayagas field(Offshore Palawan,Philippines)[J].Sedimentary Geology,2005.175:189-215.
[17] Francois Fournier and Jean Borgomano.Geological significance of seismic reflections and imaging of the reservoir architecture in the Malampayagas field(Philippines)[J].AAPG Bulletin,2007,91:235-258.
[18] Stephan Steuer,et al.Oligocene-Miocene carbonates and their role for constraining the rifting and collision history of the Dangerous Grounds,South China Sea[J].Marine and Petroleum Geology,2013,58:1-14.
[19] Stephan Steuer,et al.Time constraints on the evolution of southern Palawan Island,Philippines from onshore and offshore correlation of Miocene limestones[J].Journal of Asian Earth Sciences,2013,76:412-427.
[20] Biswas B.Frontier seismic geologic techniques and the exploration of the Miocene reefs in offshore Palawan,Philippines[J].Journal of Southeast Asian Earth Sciences,1986,1:191-204.
[21] Kudrass H R,Wiedicke M,Cepeck P,et al.Mesozoic and Cainozoic rocks dredged from the South China Sea(Reed Bank Area)and Sulu Sea and their significance for plate-tectonic reconstructions[J].Marine and Petroleum Geology,1986,3(1):19-30.
[22] Dieter Franke,Dimitri Savva,et al.The final rifting evolution in the South China Sea[J].Marine and Petroleum Geology,2013,58:704-720.
[23]姚永坚,杨楚鹏,李学杰,等.南海南部海域中中新世(T3界面)构造变革界面地震反射特征及构造含义[J].地球物理学报,2013,56(4):1274-1286.[YAO Yongjian,Yang Chupeng,Li Xuejie,et a1.The seismic reflection characteristics and tectonic significance of the tectonic revolutionary surface of mid—Miocene(T3seismic interface)in the southern South China Sea[J].Chinese Journal of Geophysics,2013,56(4):1274-1286.]
[24] Harold H.Williams.Play concepts-northwest Palawan,Philippines[J].Journal of Asian Earth Sciences,1997,15(2):251-273.
[25]米立军,曾清波,杨海长.东沙隆起珠江组生物礁类型及勘探方向[J].石油学报,2013,34(S2):24-31.[MI Lijun,ZENG Qingbo,YANG Haichang.Types of organic reef and exploration direction in Zhujiang Formation of dongsha uplift[J].Acta Petrolei Sinica,2012,34(S2):24-31.]
[26]吕彩丽.南沙海区新生代碳酸盐岩台地形成演化及油气意义[D].中国科学院研究生院(海洋研究所),2012.[LV Caili.Geological evolution and hydrocarbon potential of Cenozoic carbonate platforms,southern South China Sea[D].Graduate University of Chinese Academy of Sciences(Institute of Marine Research),2012.]
[27]魏喜,邓晋福,谢文彦,等.南海盆地演化对生物礁的控制及礁油气藏勘探潜力分析[J].地学前缘,2005,12(3):245-252.[WEI Xi,DENG Jinfu,XIE Wenyan,et al.Constraints on biogenetic reef formation during evolution of the South China Sea and exploration potential analysis[J].Earth Science Frontiers,2005,12(3):245-252.]