南海北部神狐海域新近系以来沉积相及水合物成藏模式
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摘要
广州海洋地质调查局自2000年以来在南海北部陆坡区相继开展了多个航次的天然气水合物资源的调查及研究工作,取得了非常丰富的地震资料.在对这些地震资料精细解释的基础上,识别出了6种典型的地震相:透镜状前积相、丘状前积相、V字型充填相、席状平行相、底辟-气烟囱状杂乱相、丘状杂乱相;并由此分析出3种类型的沉积相:深水浊积相、滑塌相、峡谷水道相.结合似海底反射(BSR)在研究区范围内的分布,研究BSR与各沉积相之间的空间位置关系,由此分析出了3种水合物成藏模式:断层沟通浊积扇体成藏模式、断层沟通峡谷水道成藏模式、断层沟通峡谷水道及滑塌扇体成藏模式.
Guangzhou marine geological survey have carried out a number of voyages for gas hydrate investigation and research at the continental slope of northern South China Sea since 2000 and has acquired abundance of seismic data.On the basis of detailed interpretation of those seismic data,this paper recognizes six typical seismic facies,namely lenticular progradation facies,hummocky progradation facies,V-shaped filling facies,sheet parallel facies,diapir-gas chimney disorder facies and hummocky disorder facies.Thus developed three sedimentary facies including deep sea fan,slump and canyon channel facies.Combined with the distribution of the bottom simulating reflector(BSR) in the study area and the spatial relationship of the BSR with the variety of sedimentary facies,three gas hydrate accumulation models have been established as follows:fault communication with deep sea fan,fault communication with canyon channel and fault communication with canyon channel and slump fan.
Guangzhou marine geological survey have carried out a number of voyages for gas hydrate investigation and research at the continental slope of northern South China Sea since 2000 and has acquired abundance of seismic data.On the basis of detailed interpretation of those seismic data,this paper recognizes six typical seismic facies,namely lenticular progradation facies,hummocky progradation facies,V-shaped filling facies,sheet parallel facies,diapir-gas chimney disorder facies and hummocky disorder facies.Thus developed three sedimentary facies including deep sea fan,slump and canyon channel facies.Combined with the distribution of the bottom simulating reflector(BSR) in the study area and the spatial relationship of the BSR with the variety of sedimentary facies,three gas hydrate accumulation models have been established as follows:fault communication with deep sea fan,fault communication with canyon channel and fault communication with canyon channel and slump fan.
引文
Gong,Y.H.,Yang,S.X.,Wang,H.B.,et al.,2009.Gas hydrate reservoir characteristics of Shenhu area,northslope of the South China Sea.Geoscience,23(2):210216(in Chinese with English abstract).
He,J.X.,Liu,H.L.,Yao,Y.J.,et al.,2008.The oil-gas geologic and resource prospect of marginal basin,northernSouth China Sea.Petroleum Industry Press,Beijing,14(in Chinese).
Liu,T.S.,He,S.B.,2001.Deepwater hydrocarbon potentialalong the north continental margin,the South ChinaSea.China Offshore Oil and Gas(Geology),15(3):164-170(in Chinese with English abstract).
Lu,H.F.,Chen,F.,Liu,J.,et al.,2006.Characteristics ofauthigenic carbonate chimneys in Shenhu area,northernSouth China Sea:recorders of hydrocarbon-enriched fluid activity.Geological Review,52(3):352-357(inChinese with English abstract).
Shao,L.,Lei,Y.C.,Pang,X.,et al.,2005.Tectonic evolution and its controlling for sedimentary environment inPearl River Mouth basin.Journal of Tongji University(Nature Science),33(9):1177-1181(in Chinese withEnglish abstract).
Sun,Z.,Pang,X.,Zhong,Z.H.,et al.,2005.Dynamics oftertiary tectonic evolution of the Baiyun sag in the Pearl River Mouth basin.Earth Science Frontiers,12(4):489-498(in Chinese with English abstract).
Yao,B.C.,1993.Probing into Cenozoic tectonic movementsof the continental margin in northern South China Sea.Geological Research of South China Sea,5:1-12(inChinese with English abstract).
Yu,X.H.,2002.The clasolite of hydrocarbon reservoir sedimentology.Petroleum Industry Press,Beijing,333-334(in Chinese).
Yu,X.H.,Zhang,Z.J.,2005.Characteristics of Neogenedepositional systems on the northern continental slopeof the South China Sea and their relationships with gashydrate.Geology in China,32(3):470-476(in Chinese with English abstract).
Yuan,Y.S.,Ding,M.G.,2008.Characteristics and geodynamic setting of the basins in deepwater area of thenorthern South China Sea margin.Marine Sciences,32(12):102-110(in Chinese).
Zhang,S.L.,2007.Accumulation conditions and prospect fornatural gas hydrate resources in Baiyun sag,Pearl RiverMouth basin.Petroleum Geology,6:23-27(in Chinesewith English abstract).
龚跃华,杨胜雄,王宏斌,等,2009.南海北部神狐海域天然气水合物成藏特征.现代地质,23(2):210-216.
何家雄,刘海龄,姚永坚,等,2008.南海北部边缘盆地油气地质及资源前景.北京:石油工业出版社,1-4.
刘铁树,何仕斌,2001.南海北部陆缘盆地深水区油气勘探前景.中国海上油气(地质),15(3):164-170.
陆红锋,陈芳,刘坚,等,2006.南海北部神狐海区的自生碳酸盐岩烟囱——海底富烃流体活动的记录.地质评论,52(3):352-357.
邵磊,雷永昌,庞雄,等,2005.珠江口盆地构造演化及对沉积环境的控制作用.同济大学学报(自然科学版),33(9):1177-1181.
孙珍,庞雄,钟志洪,等,2005.珠江口盆地白云凹陷新生代构造演化动力学.地学前缘,12(4):489-498.
姚伯初,1993.南海北部陆缘新生代构造运动初探.南海地质研究,5:1-12.
于兴河,2002.碎屑岩系油气储层沉积学.北京:石油工业出版社,333-334.
于兴河,张志杰,2005.南海北部陆坡区新近系沉积体系特征与天然气水合物分布的关系.中国地质,32(3):470476.
袁玉松,丁玫瑰,2008.南海北部深水区盆地特征及其动力学背景.海洋科学,32(12):102-110.
张树林,2007.珠江口盆地白云凹陷天然气水合物成藏条件及资源量前景.石油地质,6:23-27.
He,J.X.,Liu,H.L.,Yao,Y.J.,et al.,2008.The oil-gas geologic and resource prospect of marginal basin,northernSouth China Sea.Petroleum Industry Press,Beijing,14(in Chinese).
Liu,T.S.,He,S.B.,2001.Deepwater hydrocarbon potentialalong the north continental margin,the South ChinaSea.China Offshore Oil and Gas(Geology),15(3):164-170(in Chinese with English abstract).
Lu,H.F.,Chen,F.,Liu,J.,et al.,2006.Characteristics ofauthigenic carbonate chimneys in Shenhu area,northernSouth China Sea:recorders of hydrocarbon-enriched fluid activity.Geological Review,52(3):352-357(inChinese with English abstract).
Shao,L.,Lei,Y.C.,Pang,X.,et al.,2005.Tectonic evolution and its controlling for sedimentary environment inPearl River Mouth basin.Journal of Tongji University(Nature Science),33(9):1177-1181(in Chinese withEnglish abstract).
Sun,Z.,Pang,X.,Zhong,Z.H.,et al.,2005.Dynamics oftertiary tectonic evolution of the Baiyun sag in the Pearl River Mouth basin.Earth Science Frontiers,12(4):489-498(in Chinese with English abstract).
Yao,B.C.,1993.Probing into Cenozoic tectonic movementsof the continental margin in northern South China Sea.Geological Research of South China Sea,5:1-12(inChinese with English abstract).
Yu,X.H.,2002.The clasolite of hydrocarbon reservoir sedimentology.Petroleum Industry Press,Beijing,333-334(in Chinese).
Yu,X.H.,Zhang,Z.J.,2005.Characteristics of Neogenedepositional systems on the northern continental slopeof the South China Sea and their relationships with gashydrate.Geology in China,32(3):470-476(in Chinese with English abstract).
Yuan,Y.S.,Ding,M.G.,2008.Characteristics and geodynamic setting of the basins in deepwater area of thenorthern South China Sea margin.Marine Sciences,32(12):102-110(in Chinese).
Zhang,S.L.,2007.Accumulation conditions and prospect fornatural gas hydrate resources in Baiyun sag,Pearl RiverMouth basin.Petroleum Geology,6:23-27(in Chinesewith English abstract).
龚跃华,杨胜雄,王宏斌,等,2009.南海北部神狐海域天然气水合物成藏特征.现代地质,23(2):210-216.
何家雄,刘海龄,姚永坚,等,2008.南海北部边缘盆地油气地质及资源前景.北京:石油工业出版社,1-4.
刘铁树,何仕斌,2001.南海北部陆缘盆地深水区油气勘探前景.中国海上油气(地质),15(3):164-170.
陆红锋,陈芳,刘坚,等,2006.南海北部神狐海区的自生碳酸盐岩烟囱——海底富烃流体活动的记录.地质评论,52(3):352-357.
邵磊,雷永昌,庞雄,等,2005.珠江口盆地构造演化及对沉积环境的控制作用.同济大学学报(自然科学版),33(9):1177-1181.
孙珍,庞雄,钟志洪,等,2005.珠江口盆地白云凹陷新生代构造演化动力学.地学前缘,12(4):489-498.
姚伯初,1993.南海北部陆缘新生代构造运动初探.南海地质研究,5:1-12.
于兴河,2002.碎屑岩系油气储层沉积学.北京:石油工业出版社,333-334.
于兴河,张志杰,2005.南海北部陆坡区新近系沉积体系特征与天然气水合物分布的关系.中国地质,32(3):470476.
袁玉松,丁玫瑰,2008.南海北部深水区盆地特征及其动力学背景.海洋科学,32(12):102-110.
张树林,2007.珠江口盆地白云凹陷天然气水合物成藏条件及资源量前景.石油地质,6:23-27.
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