渤海湾盆地歧口凹陷扭动构造及其油气地质意义
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摘要
受东部边界郯庐断裂和西部边界太行山前大型走滑断裂的影响,渤海湾盆地中部歧口凹陷区处于伸展与走滑共同作用的地区,利用最新连片采集的超大面积地震资料开展构造研究,发现该区古近纪在发育伸展构造的同时也发育走滑扭动构造,该类构造与古近系内伸展构造共存.在剖面上依据基底和盖层中断裂组合的不同可以分为4类构造样式:走滑-复杂断裂褶皱型、走滑-简单花状构造型、逆冲-简单花状构造型和走滑-挠曲褶皱型.同时,扭动构造带不仅对盆地基底物性的改造有着有利影响,还控制了古物源的入口方式和有利砂体的展布.在前第三系、古近系和新近系构造层中形成了不同类型的有利油气藏,其中古近系挠曲背斜、大型断鼻和地层岩性油气藏以及新近系逆牵引背斜和断鼻翼部都是重要的勘探领域.近两年沿走滑扭动带及其两侧进行的油气勘探已获得成功,对该带研究具深远理论意义及现实意义.
The Qikou sag at the central of the Bohai bay basin lies in the superimposition of the extension and strike-slip,and is controlled by the eastern boundary Tanlu fault and the western boundary Taihang Mountain-front strike-slip fault.Through the detailed structural research of the latest large area 3Dhigh precision seismic data,the wrench structures were found as well as the extensional structures in the Paleogene cover of the Qikou sag.On the seismic profiles,the wrench structure can be divided into four types based on the different combination styles of the faults in the basement and the Tertiary cover.They are the slipcomplex faulted fold type,slip-simple flower structure type,thrust-simple flower structure type and the slip-deflecting fold type.Meanwhile,the wrench structure not only improved the physical property of the basement rock but also controlled the entrance of the ancient resource and the distribution of the sand.Different reservoirs formed in the pre-Tertiary,Paleogene and Neogene tectospheres.The Paleogene deflecting folds,huge faulted-noses and litho-stratigraphic reservoirs are important exploration fields and the same case with the Neogene reverse drag anticline and the flank of the faulted-noses.The research of the wrench belts is significant for the theory and practice because of the important petroleum exploration success beside the wrench structure belts in last two years.
The Qikou sag at the central of the Bohai bay basin lies in the superimposition of the extension and strike-slip,and is controlled by the eastern boundary Tanlu fault and the western boundary Taihang Mountain-front strike-slip fault.Through the detailed structural research of the latest large area 3Dhigh precision seismic data,the wrench structures were found as well as the extensional structures in the Paleogene cover of the Qikou sag.On the seismic profiles,the wrench structure can be divided into four types based on the different combination styles of the faults in the basement and the Tertiary cover.They are the slipcomplex faulted fold type,slip-simple flower structure type,thrust-simple flower structure type and the slip-deflecting fold type.Meanwhile,the wrench structure not only improved the physical property of the basement rock but also controlled the entrance of the ancient resource and the distribution of the sand.Different reservoirs formed in the pre-Tertiary,Paleogene and Neogene tectospheres.The Paleogene deflecting folds,huge faulted-noses and litho-stratigraphic reservoirs are important exploration fields and the same case with the Neogene reverse drag anticline and the flank of the faulted-noses.The research of the wrench belts is significant for the theory and practice because of the important petroleum exploration success beside the wrench structure belts in last two years.
引文
Editorial Committee of Petroleum Geology of China of Da-gang Oilfield,1991.Petroleum geology of China(Vol.4).Petroleum Industry Press,Beijing,75(in Chinese).
Fan,J.L.,Qi,J.F.,Gao,A.H.,et al.,2004.Genetic analy-sis of discontinuous of tectonic line on both sides ofcoastline in Huanghua basin.Journal of China Univer-sity of Mining &Technology,33(3):287-291(inChinese with English abstract).
Hao,Y.Q.,Pan,M.,Chang,Y.W.,et al.,2005.A discus-sion on the Pre-Tertiary structural system of Qikoucoastal zone in Dagang oilfield.Acta Geoscientica Sini-ca,26(3):223-228(in Chinese with English ab-stract).
He,S.,Yang,Q.,Qi,J.F.,et al.,2008.Cenozoic fault sys-tems and their genetic analysis in central area of theHuanghua depression.Chinese Journal of Geology,43(3):533-545(in Chinese with English abstract).
Hsiao,L.Y.,Graham,S.A.,Tilander,N.,2004.Seismic re-flection imaging of a major strike-slip fault zone in a riftsystem:Paleogene structure and evolution of the Tanlufault system,Liaodong bay,Bohai,offshore China.AAPG Bull.,88(1):71-97.doi:10.1306/09090302019
Qi,J.F.,Yu,F.S.,Lu,K.Z.,et al.,2003.Conspectus onMesozoic basins in Bohai bay Province.Earth ScienceFrontiers,10(Suppl.1):199-206(in Chinese withEnglish abstract).
Qi,P.,Ren,J.Y.,Lu,G.C.,et al.,2010a.Cenozoic episodicsubsidence in the middle and north part of Huanghuadepression,Bohai bay basin.Earth Science—Journal ofChina University of Geosciences,35(6):1041-1052(in Chinese with English abstract).
Qi,P.,Ren,J.Y.,Shi,S.S.,et al.,2010b.Features of theCenozoic structure of the coastal zone in Qikou sag andits formation mechanism.Acta Petrolei Sinica,31(6):900-905(in Chinese with English abstract).
Qu,F.,Chen,Q.H.,Lian C.B.,et al.,2006.Faulted struc-ture systems of Huanghua depression in Cenozoic era.Petroleum Geology and Recovery Efficiency,13(5):7-10(in Chinese with English abstract).
Ren,J.Y.,Liao,Q.J.,Lu,G.C.,et al.,2010.Deformationframework and evolution of the Huanghua depression,Bohai gulf.Geotectonica et Metallogenia,34(4):461-472(in Chinese with English abstract).
Wang,G.C.,1998.Relationship of Tanlu fault to the inver-sion and flower structures in Bohai bay.China Off-shore Oil and Gas(Geology),12(5):289-295(in Chi-nese with English abstract).
Wang,G.Q.,Qi,J.F.,Yue,Y.F.,2003.Formation and evo-lution of the Cenozoic tectonics within and surroundingthe Qikou sag.Chinese Journal of Geology,38(2):230-240(in Chinese with English abstract).
Wang,H.,Bai,Y.F.,Huang,C.Y.,et al.,2009.Recon-struction and application of the Paleogene provenancesystem of the Dongying Formation in Qikou depression.Earth Science—Journal of China University of Geo-sciences,34(3):448-456(in Chinese with English ab-stract).
Wu,Y.P.,Yang,C.Y.,Wang,H.,et al.,2010.Integratedstudy of tectonics-sequence stratrigraphy-sedimentologyin the Qikou sag and its applications.Geotectonicaet Metallogenia,34(4):451-460(in Chinese with Eng-lish abstract).
Zhang,C.K.,Zhang,X.K.,Zhao,J.R.,et al.,2002.Studyand review on crust-mantle velocity structure in Bohaibay and its adjacent areas.Acta Seismologica Sinica,24(4):428-435(in Chinese with English abstract).
Zhang,L.,Liu,J.S.,Hao,T.Y.,et al.,2007.Tomographicstudy on crust and up mantel in Bohai bay basin andsurrounding area.Science in China(Ser.D),37(11):1444-1455(in Chinese).
大港油田石油地质志编辑委员会,1991.中国石油地质志:卷四.北京:石油工业出版社,75.
樊敬亮,漆家福,高爱华,等,2004.黄骅盆地海岸线两侧构造线不连续之成因分析.中国矿业大学学报,33(3):287-291.
郝银全,潘懋,常毓文,等,2005.大港歧口沿岸带前第三系构造体系探讨.地球学报,26(3):223-228.
何书,杨桥,漆家福,等,2008.黄骅坳陷中区新生代断裂系统及其成因分析.地质科学,43(3):533-545.
漆家福,于福生,陆克政,等,2003.渤海湾地区的中生代盆地构造概论.地学前缘,10(增刊1):199-206.
祁鹏,任建业,卢刚臣,等,2010a.渤海湾盆地黄骅坳陷中北区新生代幕式沉降过程.地球科学——中国地质大学学报,35(6):1041-1052.
祁鹏,任建业,史双双,等,2010b.歧口凹陷沿岸带新生代构造特征及其形成机制.石油学报,31(6):900-905.
渠芳,陈清华,连承波,等,2006.黄骅坳陷新生代断裂构造系统研究.油气地质与采率,13(5):7-10.
任建业,廖前进,卢刚臣,等,2010.黄骅坳陷构造变形格局与演化过程分析.大地构造与成矿学,34(4):461-472.
王光奇,漆家福,岳云福,2003.歧口凹陷及周缘新生代构造的成因和演化地质科学,38(2):230-240.
王国纯,1998.郯庐断裂与渤海海域反转构造及花状构造.中国海上油气,12(5):289-295.
王华,白云风,黄传炎,等,2009.歧口凹陷古近纪东营期古物源体系重建与应用.地球科学——中国地质大学学报,34(3):448-456.
吴永平,杨池银,王华,等,2010.歧口凹陷构造-层序-沉积一体化研究及其应用.大地构造与成矿学,34(4):451-460.
张成科,张先康,赵金仁,等,2002.渤海湾及其邻区壳幔速度结构研究与综述.地震学报,24(4):428-435.
张岭,刘劲松,郝天珧,等,2007.渤海湾盆地及其邻域地区地壳与上地幔层析成像.中国科学(D辑),37(11):1444-1455.
Fan,J.L.,Qi,J.F.,Gao,A.H.,et al.,2004.Genetic analy-sis of discontinuous of tectonic line on both sides ofcoastline in Huanghua basin.Journal of China Univer-sity of Mining &Technology,33(3):287-291(inChinese with English abstract).
Hao,Y.Q.,Pan,M.,Chang,Y.W.,et al.,2005.A discus-sion on the Pre-Tertiary structural system of Qikoucoastal zone in Dagang oilfield.Acta Geoscientica Sini-ca,26(3):223-228(in Chinese with English ab-stract).
He,S.,Yang,Q.,Qi,J.F.,et al.,2008.Cenozoic fault sys-tems and their genetic analysis in central area of theHuanghua depression.Chinese Journal of Geology,43(3):533-545(in Chinese with English abstract).
Hsiao,L.Y.,Graham,S.A.,Tilander,N.,2004.Seismic re-flection imaging of a major strike-slip fault zone in a riftsystem:Paleogene structure and evolution of the Tanlufault system,Liaodong bay,Bohai,offshore China.AAPG Bull.,88(1):71-97.doi:10.1306/09090302019
Qi,J.F.,Yu,F.S.,Lu,K.Z.,et al.,2003.Conspectus onMesozoic basins in Bohai bay Province.Earth ScienceFrontiers,10(Suppl.1):199-206(in Chinese withEnglish abstract).
Qi,P.,Ren,J.Y.,Lu,G.C.,et al.,2010a.Cenozoic episodicsubsidence in the middle and north part of Huanghuadepression,Bohai bay basin.Earth Science—Journal ofChina University of Geosciences,35(6):1041-1052(in Chinese with English abstract).
Qi,P.,Ren,J.Y.,Shi,S.S.,et al.,2010b.Features of theCenozoic structure of the coastal zone in Qikou sag andits formation mechanism.Acta Petrolei Sinica,31(6):900-905(in Chinese with English abstract).
Qu,F.,Chen,Q.H.,Lian C.B.,et al.,2006.Faulted struc-ture systems of Huanghua depression in Cenozoic era.Petroleum Geology and Recovery Efficiency,13(5):7-10(in Chinese with English abstract).
Ren,J.Y.,Liao,Q.J.,Lu,G.C.,et al.,2010.Deformationframework and evolution of the Huanghua depression,Bohai gulf.Geotectonica et Metallogenia,34(4):461-472(in Chinese with English abstract).
Wang,G.C.,1998.Relationship of Tanlu fault to the inver-sion and flower structures in Bohai bay.China Off-shore Oil and Gas(Geology),12(5):289-295(in Chi-nese with English abstract).
Wang,G.Q.,Qi,J.F.,Yue,Y.F.,2003.Formation and evo-lution of the Cenozoic tectonics within and surroundingthe Qikou sag.Chinese Journal of Geology,38(2):230-240(in Chinese with English abstract).
Wang,H.,Bai,Y.F.,Huang,C.Y.,et al.,2009.Recon-struction and application of the Paleogene provenancesystem of the Dongying Formation in Qikou depression.Earth Science—Journal of China University of Geo-sciences,34(3):448-456(in Chinese with English ab-stract).
Wu,Y.P.,Yang,C.Y.,Wang,H.,et al.,2010.Integratedstudy of tectonics-sequence stratrigraphy-sedimentologyin the Qikou sag and its applications.Geotectonicaet Metallogenia,34(4):451-460(in Chinese with Eng-lish abstract).
Zhang,C.K.,Zhang,X.K.,Zhao,J.R.,et al.,2002.Studyand review on crust-mantle velocity structure in Bohaibay and its adjacent areas.Acta Seismologica Sinica,24(4):428-435(in Chinese with English abstract).
Zhang,L.,Liu,J.S.,Hao,T.Y.,et al.,2007.Tomographicstudy on crust and up mantel in Bohai bay basin andsurrounding area.Science in China(Ser.D),37(11):1444-1455(in Chinese).
大港油田石油地质志编辑委员会,1991.中国石油地质志:卷四.北京:石油工业出版社,75.
樊敬亮,漆家福,高爱华,等,2004.黄骅盆地海岸线两侧构造线不连续之成因分析.中国矿业大学学报,33(3):287-291.
郝银全,潘懋,常毓文,等,2005.大港歧口沿岸带前第三系构造体系探讨.地球学报,26(3):223-228.
何书,杨桥,漆家福,等,2008.黄骅坳陷中区新生代断裂系统及其成因分析.地质科学,43(3):533-545.
漆家福,于福生,陆克政,等,2003.渤海湾地区的中生代盆地构造概论.地学前缘,10(增刊1):199-206.
祁鹏,任建业,卢刚臣,等,2010a.渤海湾盆地黄骅坳陷中北区新生代幕式沉降过程.地球科学——中国地质大学学报,35(6):1041-1052.
祁鹏,任建业,史双双,等,2010b.歧口凹陷沿岸带新生代构造特征及其形成机制.石油学报,31(6):900-905.
渠芳,陈清华,连承波,等,2006.黄骅坳陷新生代断裂构造系统研究.油气地质与采率,13(5):7-10.
任建业,廖前进,卢刚臣,等,2010.黄骅坳陷构造变形格局与演化过程分析.大地构造与成矿学,34(4):461-472.
王光奇,漆家福,岳云福,2003.歧口凹陷及周缘新生代构造的成因和演化地质科学,38(2):230-240.
王国纯,1998.郯庐断裂与渤海海域反转构造及花状构造.中国海上油气,12(5):289-295.
王华,白云风,黄传炎,等,2009.歧口凹陷古近纪东营期古物源体系重建与应用.地球科学——中国地质大学学报,34(3):448-456.
吴永平,杨池银,王华,等,2010.歧口凹陷构造-层序-沉积一体化研究及其应用.大地构造与成矿学,34(4):451-460.
张成科,张先康,赵金仁,等,2002.渤海湾及其邻区壳幔速度结构研究与综述.地震学报,24(4):428-435.
张岭,刘劲松,郝天珧,等,2007.渤海湾盆地及其邻域地区地壳与上地幔层析成像.中国科学(D辑),37(11):1444-1455.
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