珠江口盆地珠Ⅲ坳陷反转构造特征及有利反转构造区带评价
|
摘要
通过反转构造地震反射特征、分布特征及形成机理研究,分析了珠江口盆地珠Ⅲ坳陷反转构造形成期次,划分了该区反转构造样式,研究了反转构造对油气成藏条件的影响。研究认为该区发育古近纪末期断陷反转和新近纪晚期拗陷反转2期反转构造幕,早期反转构造发生在古近纪,是在断陷期—断拗转换期之上的叠加构造,晚期反转构造发生在新近纪,是盆地坳陷期之上的叠加构造。依据反转构造与先存断裂和构造的关系,珠Ⅲ坳陷反转构造样式可划分为断层限制型和褶皱挠曲型2个大类,细分为5类断层限制型和3类褶皱挠曲型反转构造样式。反转构造可以形成良好的油气聚集圈闭条件,但早期反转会使烃源岩埋藏变浅,难以达到生烃门限而导致生烃能力很小,晚期反转构造油气成藏条件良好,特别是坳陷西部较大反转构造是有利勘探区带。
This paper analyzes the formation period of the Zhu-3 Depression in Pearl River Mouth Basin,classifies the inversion tectonic styles and investigates their influence on hydrocarbon accumulation conditions based on the seismic reflection characteristics,distribution characteristics and formation mechanism of inversed tectonics.It is proposed that two inverted tectonic phases have developed in this area.One is the faulted-inversion which develops at the end of Paleogene,and it is the superimposed tectonic which developed over faulted period to fault-depression transform period;the other is the depression-inversion which occurred during the late period of Neogene,and it is the superimposed tectonic which developed over depression period.According to the relationship between inversion tectonics and pre-existing faults and tectonics,the inversion tectonic styles of the Zhu-3Depression of Pearl River Mouth Basin can be divided into two styles,identified as fault-limited which can also be subdivided into five fault-limited styles;and three fold-bending styles.Inversion tectonics could be served as excellent seals for oil and gas accumulation.However,since the hydrocarbon source rocks are shallowly buried during the early inversion stage,it is difficult to meet the threshold of hydrocarbon generation and adverse to the generation of oil.
This paper analyzes the formation period of the Zhu-3 Depression in Pearl River Mouth Basin,classifies the inversion tectonic styles and investigates their influence on hydrocarbon accumulation conditions based on the seismic reflection characteristics,distribution characteristics and formation mechanism of inversed tectonics.It is proposed that two inverted tectonic phases have developed in this area.One is the faulted-inversion which develops at the end of Paleogene,and it is the superimposed tectonic which developed over faulted period to fault-depression transform period;the other is the depression-inversion which occurred during the late period of Neogene,and it is the superimposed tectonic which developed over depression period.According to the relationship between inversion tectonics and pre-existing faults and tectonics,the inversion tectonic styles of the Zhu-3Depression of Pearl River Mouth Basin can be divided into two styles,identified as fault-limited which can also be subdivided into five fault-limited styles;and three fold-bending styles.Inversion tectonics could be served as excellent seals for oil and gas accumulation.However,since the hydrocarbon source rocks are shallowly buried during the early inversion stage,it is difficult to meet the threshold of hydrocarbon generation and adverse to the generation of oil.
引文
[1]Cai Xiyuan,Wang Tonghe,Chi Yuanlin,et al.Reverse Struc-ture in China Petroleum Provinces[M].Beijing:Petroleum In-dustry Press,2001:1-32.[蔡希源,王同和,迟元林,等.中国油气区反转构造[M].北京:石油工业出版社,2001:1-32.]
[2]Li Xiaobin,Tao Mingxin,Wang Zuodong,et al.Research ad-vance of inversion tectonics in oil and gas bearing basins,northwest China[J].Natural Gas Geoscience,2007,18(5):678-683.[李晓斌,陶明信,王作栋,等.我国西北地区含油气盆地构造反转特征研究进展[J].天然气地球科学,2007,18(5):678-683.]
[3]Zhang Gongcheng,Xu Hong,Wang Tonghe,et al.Tectonicsand Structural Style of Petroliferous Basins in China[M].Bei-jing:Petroleum Industry Press,1999:120-125.[张功成,徐宏,王同和,等.中国含油气盆地构造[M].北京:石油工业出版社,1999:120-125.]
[4]Xia Bin,Huang Xianxiong,Cai Zhourong,et al.Relationshipbetween tectonics and hydrocarbon reservoirs from Indo-Chi-nese Epoch to stage of Yanshan in Jiyang Depression[J].Nat-ural Gas Geoscience,2007,18(6):832-837.[夏斌,黄先雄,蔡周荣,等.济阳坳陷印支—燕山期构造运动特征与油气藏的关系[J].天然气地球科学,2007,18(6):832-837.]
[5]Zhu Weilin,Mi Lijun,Zhong Kai,et al.Developing simultane-ously oil and gas exploration and scaling new heights again:Areview of hydrocarbon exploration offshore China in 2010andoutlook for the 12th“Five-Year Plan”[J].China Offshore Oiland Gas,2011,23(1):1-6.[朱伟林,米立军,钟锴,等.油气并举再攀高峰——中国近海2010年勘探回顾及”十二五”勘探展望[J].中国海上油气,2011,23(1):1-6.]
[6]Guan Dayong,Zhou Xinhuai,Wei Gang,et al.Tectonic inver-sion phases and their controls over hydrocarbon accumulationin block LD22-27[J].China Offshore Oil and Gas,2007,19(2):85-89.[官大勇,周心怀,魏钢,等.旅大22-27区构造反转期次及其对油气成藏的控制作用[J].中国海上油气,2007,19(2):85-89.]
[7]Jiang Hua,Wang Hua,Xiao Jun,et al.Tectonic inversion andits relationship with hydrocarbon accumulation in Zhu-3De-pression of Pearl River Mouth Basin[J].Acta Petrolei Sinica,2008,29(3):372-377.[姜华,王华,肖军,等.珠江口盆地珠Ⅲ坳陷构造反转与油气聚集[J].石油学报,2008,29(3):372-377.]
[8]Wang Guochun.Positive inversion structures and their signifi-cance to petroleum geology in China offshore basins[J].ChinaOffshore Oil and Gas:Geology,1995,9(1):33-40.[王国纯.中国近海盆地的反转构造及其石油地质意义[J].中国海上油气:地质,1995,9(1):33-40.]
[9]Zhu Weilin,Zhang Gongcheng,Yang Shaokun,et al.NaturalGas Geology of Marginal Sea Basins in Northern South ChinaSea[M].Beijing:Petroleum Industry Press,2007:3-22.[朱伟林,张功成,杨少坤,等.南海北部大陆边缘盆地天然气地质[M].北京:石油工业出版社,2007:3-22.]
[10]Zhang Zhijie,Yu Xinghe,Hou Guowei,et al.Genetic evolu-tion and depositional filling model of tensional marginal seabasin:Take the River Mouth Basin as an example[J].Geosci-ence,2004,18(3):284-289.[张志杰,于兴河,侯国伟,等.张性边缘海的成因演化特征及沉积充填模式——以珠江口盆地为例[J].现代地质,2004,18(3):284-289.]
[11]Gong Zaisheng.The Major Oil and Gas Fields of China Off-shore[M].Beijing:Petroleum Industry Press,1997:7-63.[龚再升.中国近海大油气田[M].北京:石油工业出版社,1997:7-63.]
[12]Zhu Weilin,Li Mingbi,Wu Peikang.Petroleum system in ZhuⅢDepression of Pearl River Mouth Basin[J].Petroleum Ex-ploration and Development,1997,24(6):21-26.[朱伟林,黎明碧,吴培康.珠江口盆地珠Ⅲ坳陷石油体系[J].石油勘探与开发,1997,24(6):21-26.]
[13]Sun Longtao,Chen Changmin,Zhan Wenhuan,et al.Charac-teristics and influencing factors of fault sealing in Pearl RiverMouth Basin[J].Acta Petrolei Sinica,2007,28(4):36-40.[孙龙涛,陈长民,詹文欢,等.珠江口盆地断层封堵性特征及其影响因素[J].石油学报,2007,28(4):36-40.]
[14]Wang Chunxiu,Zhang Qunying.Typical oil and gas reservoirsand their forming conditions in ZhuⅢDepression[J].ChinaOffshore Oil and Gas:Geology,1999,13(4):248-254.[王春修,张群英.珠Ⅲ坳陷典型油气藏及成藏条件分析[J].中国海上油气:地质,1999,13(4):248-254.]
[15]Zhang Gongcheng,Zhu Defeng,Zhou Zhangbao.Extensionalstructures and inversion tectonic of Songliao Basin[J].Petro-leum Exploration and Development,1996,23(2):16-20.[张功成,朱德丰,周章保.松辽盆地伸展和反转构造样式[J].石油勘探与开发,1996,23(2):16-20.]
[16]Zhang Gongcheng,Xu Hong,Liu Hefu,et al.Inversion struc-tures in relation to oil and gas field distribution in SongliaoBasin[J].Acta Petrolei Sinica,1996,17(2):9-14.[张功成,徐宏,刘和甫,等.松辽盆地反转构造与油气田分布[J].石油学报,1996,17(2):9-14.]
[17]Zhou Jianxun.Formation mechanisms of fault systems:Somenew insights from physical modeling[J].Chinese Journal ofNature,2011,33(5):260-265.[周建勋.断裂系统形成机制:来自物理模拟实验的新启示[J].自然杂志,2011,33(5):260-265.]
[18]Deng Yunhua,Li Jianping.Shallow Reservoir Formation Mecha-nism:A Case in Bohai Oil Province[M].Beijing:Petroleum In-dustry Press,2008:154-159.[邓运华,李建平.浅层油气藏的形成机理——以渤海油区为例[M].北京:石油工业出版社,2008:154-159.]
[2]Li Xiaobin,Tao Mingxin,Wang Zuodong,et al.Research ad-vance of inversion tectonics in oil and gas bearing basins,northwest China[J].Natural Gas Geoscience,2007,18(5):678-683.[李晓斌,陶明信,王作栋,等.我国西北地区含油气盆地构造反转特征研究进展[J].天然气地球科学,2007,18(5):678-683.]
[3]Zhang Gongcheng,Xu Hong,Wang Tonghe,et al.Tectonicsand Structural Style of Petroliferous Basins in China[M].Bei-jing:Petroleum Industry Press,1999:120-125.[张功成,徐宏,王同和,等.中国含油气盆地构造[M].北京:石油工业出版社,1999:120-125.]
[4]Xia Bin,Huang Xianxiong,Cai Zhourong,et al.Relationshipbetween tectonics and hydrocarbon reservoirs from Indo-Chi-nese Epoch to stage of Yanshan in Jiyang Depression[J].Nat-ural Gas Geoscience,2007,18(6):832-837.[夏斌,黄先雄,蔡周荣,等.济阳坳陷印支—燕山期构造运动特征与油气藏的关系[J].天然气地球科学,2007,18(6):832-837.]
[5]Zhu Weilin,Mi Lijun,Zhong Kai,et al.Developing simultane-ously oil and gas exploration and scaling new heights again:Areview of hydrocarbon exploration offshore China in 2010andoutlook for the 12th“Five-Year Plan”[J].China Offshore Oiland Gas,2011,23(1):1-6.[朱伟林,米立军,钟锴,等.油气并举再攀高峰——中国近海2010年勘探回顾及”十二五”勘探展望[J].中国海上油气,2011,23(1):1-6.]
[6]Guan Dayong,Zhou Xinhuai,Wei Gang,et al.Tectonic inver-sion phases and their controls over hydrocarbon accumulationin block LD22-27[J].China Offshore Oil and Gas,2007,19(2):85-89.[官大勇,周心怀,魏钢,等.旅大22-27区构造反转期次及其对油气成藏的控制作用[J].中国海上油气,2007,19(2):85-89.]
[7]Jiang Hua,Wang Hua,Xiao Jun,et al.Tectonic inversion andits relationship with hydrocarbon accumulation in Zhu-3De-pression of Pearl River Mouth Basin[J].Acta Petrolei Sinica,2008,29(3):372-377.[姜华,王华,肖军,等.珠江口盆地珠Ⅲ坳陷构造反转与油气聚集[J].石油学报,2008,29(3):372-377.]
[8]Wang Guochun.Positive inversion structures and their signifi-cance to petroleum geology in China offshore basins[J].ChinaOffshore Oil and Gas:Geology,1995,9(1):33-40.[王国纯.中国近海盆地的反转构造及其石油地质意义[J].中国海上油气:地质,1995,9(1):33-40.]
[9]Zhu Weilin,Zhang Gongcheng,Yang Shaokun,et al.NaturalGas Geology of Marginal Sea Basins in Northern South ChinaSea[M].Beijing:Petroleum Industry Press,2007:3-22.[朱伟林,张功成,杨少坤,等.南海北部大陆边缘盆地天然气地质[M].北京:石油工业出版社,2007:3-22.]
[10]Zhang Zhijie,Yu Xinghe,Hou Guowei,et al.Genetic evolu-tion and depositional filling model of tensional marginal seabasin:Take the River Mouth Basin as an example[J].Geosci-ence,2004,18(3):284-289.[张志杰,于兴河,侯国伟,等.张性边缘海的成因演化特征及沉积充填模式——以珠江口盆地为例[J].现代地质,2004,18(3):284-289.]
[11]Gong Zaisheng.The Major Oil and Gas Fields of China Off-shore[M].Beijing:Petroleum Industry Press,1997:7-63.[龚再升.中国近海大油气田[M].北京:石油工业出版社,1997:7-63.]
[12]Zhu Weilin,Li Mingbi,Wu Peikang.Petroleum system in ZhuⅢDepression of Pearl River Mouth Basin[J].Petroleum Ex-ploration and Development,1997,24(6):21-26.[朱伟林,黎明碧,吴培康.珠江口盆地珠Ⅲ坳陷石油体系[J].石油勘探与开发,1997,24(6):21-26.]
[13]Sun Longtao,Chen Changmin,Zhan Wenhuan,et al.Charac-teristics and influencing factors of fault sealing in Pearl RiverMouth Basin[J].Acta Petrolei Sinica,2007,28(4):36-40.[孙龙涛,陈长民,詹文欢,等.珠江口盆地断层封堵性特征及其影响因素[J].石油学报,2007,28(4):36-40.]
[14]Wang Chunxiu,Zhang Qunying.Typical oil and gas reservoirsand their forming conditions in ZhuⅢDepression[J].ChinaOffshore Oil and Gas:Geology,1999,13(4):248-254.[王春修,张群英.珠Ⅲ坳陷典型油气藏及成藏条件分析[J].中国海上油气:地质,1999,13(4):248-254.]
[15]Zhang Gongcheng,Zhu Defeng,Zhou Zhangbao.Extensionalstructures and inversion tectonic of Songliao Basin[J].Petro-leum Exploration and Development,1996,23(2):16-20.[张功成,朱德丰,周章保.松辽盆地伸展和反转构造样式[J].石油勘探与开发,1996,23(2):16-20.]
[16]Zhang Gongcheng,Xu Hong,Liu Hefu,et al.Inversion struc-tures in relation to oil and gas field distribution in SongliaoBasin[J].Acta Petrolei Sinica,1996,17(2):9-14.[张功成,徐宏,刘和甫,等.松辽盆地反转构造与油气田分布[J].石油学报,1996,17(2):9-14.]
[17]Zhou Jianxun.Formation mechanisms of fault systems:Somenew insights from physical modeling[J].Chinese Journal ofNature,2011,33(5):260-265.[周建勋.断裂系统形成机制:来自物理模拟实验的新启示[J].自然杂志,2011,33(5):260-265.]
[18]Deng Yunhua,Li Jianping.Shallow Reservoir Formation Mecha-nism:A Case in Bohai Oil Province[M].Beijing:Petroleum In-dustry Press,2008:154-159.[邓运华,李建平.浅层油气藏的形成机理——以渤海油区为例[M].北京:石油工业出版社,2008:154-159.]
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心