高邮凹陷断裂调节带发育特征及其石油地质意义
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摘要
断裂调节带是构造变形区调节构造平衡的一类重要的地质构造。综合地质、地震等分析资料对高邮凹陷主要断裂系构造的分布特征及其各构造带的石油地质意义进行了研究。结果表明,高邮凹陷内存在真武-吴堡断层同向类叠置型、真②断层内同向类叠置型、吴①断层内同向类共线型、汉留-吴②断层间共轭反向类共线型4种断裂调节带类型。凹陷内同向类调节带易形成主水系通道,各种沉积扇体和鼻状圈闭发育,而且临近凹陷内生油中心,易于形成油气富集带,是油田的主要分布区;而共轭反向类调节带则位于凹陷内低幅凸起,其水系不发育,缺乏沉积砂体,远离生油中心,不利于成藏。
The fault accommodation zone is a significant geologic structure which regulates the kinematic equilibrium in tectonically deformed regions,so the geologic distribution characteristics of the main faults and significances of petroleum geology of various tectonic belts in Gaoyou depression were investigated on the basis of comprehensive analysis of geology and seismic.The results show that there are four big fault accommodation zones in Gaoyou depression,namely Zhenwu-Wubao fault synthetic-overlapping fault accommodation zone,Zhen ② inside fault synthetic-overlapping fault accommodation zone,Wu ① inside fault synthetic-collinear fault accommodation zone,and Hanliu-Wu ② fault antithetic-collinear fault accommodation zone.The synthetic fault accommodation zones are apt to form water systems.Various sedimentary fans and structural traps are developed,and are close to the oil-generating center,so they are places of main oilfields in Gaoyou depression.While antithetic fault accommodation zones,being uplifts of low amplitude,are not favorable to oil-gas pooling because of no development of water systems and the sand bodies,and long distance from oil-generating centers.
The fault accommodation zone is a significant geologic structure which regulates the kinematic equilibrium in tectonically deformed regions,so the geologic distribution characteristics of the main faults and significances of petroleum geology of various tectonic belts in Gaoyou depression were investigated on the basis of comprehensive analysis of geology and seismic.The results show that there are four big fault accommodation zones in Gaoyou depression,namely Zhenwu-Wubao fault synthetic-overlapping fault accommodation zone,Zhen ② inside fault synthetic-overlapping fault accommodation zone,Wu ① inside fault synthetic-collinear fault accommodation zone,and Hanliu-Wu ② fault antithetic-collinear fault accommodation zone.The synthetic fault accommodation zones are apt to form water systems.Various sedimentary fans and structural traps are developed,and are close to the oil-generating center,so they are places of main oilfields in Gaoyou depression.While antithetic fault accommodation zones,being uplifts of low amplitude,are not favorable to oil-gas pooling because of no development of water systems and the sand bodies,and long distance from oil-generating centers.
引文
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[19]PEACOCK D C P,SANDERSON D J.Displacement,segment linkage and relay ramps in normal fault zones[J].Journal of Structural Geology,1991,13:721-733.
[20]BURGESS C F,ROSENDAHL B R,SANDER S,et al.The structure and stratigraphic evolution of Lake Tangan-yika:a case study of continental rifting[C]//MANSPEI-ZER W.Triassic/Jurassic rifting:continental breakupand the origin of the Atlantic Ocean and passive mar-gins:Amsterdam,Elsevier Science,1988:859-881.
[21]冯有良.断陷湖盆沟谷及构造坡折对砂体的控制作用[J].石油学报,2006,27(1):13-16.FENG You-liang.Control of valley and tectonic slope-break zone on sand bodies in rift-subsidence basin[J].Acta Petrolei Sinica,2006,27(1):13-16.
[22]LARSEN P H.Relay structures in a lower Permian base-ment involved extension system,East Greenland[J].Journal of Structural Geology,1988,10:3-8.
[23]HARDING T P.Graben hydrocarbon occurrences andstructural style[J].AAPG Bulletin,1984,68(3):333-362.
[24]CROSSLEY R.Controls of sedimentation in the Malawirift valley,central Africa[J].Sedimentary Geology,2001,40:33-50.
[25]GAWTHORPE R L,HRUST J M.Transfer zones in ex-tensional basins:their structural style and influence ondrainage development and stratigraphy[J].Journal ofthe Geological Society of London,1993,150:1137-1152.
[26]JACKSON J,LEEDER M.Drainage systems and thedevelopment of normal faults:an example from PleasantValley,Nevada[J].Journal of Structural Geology,1994,16:1041-1059.
[27]GAWTHORPE R L,LEEDER M R.Tectono-sedimen-tary evolution of active extensional basins[J].BasinResearch,2000,12:195-218.
[28]周建生,杨池银,陈发景,等.黄骅坳陷横向变换带的构造特征及成因[J].现代地质,1997,11(4):425-433.ZHOU Jian-sheng,YANG Chi-yin,CHEN Fa-jing,etal.Structural characteristics and origin of transversetransfer zone in Huanghua Subbasin[J].Geoscience,1997,11(4):425-433.
[2]陈发景,贾庆素,张洪年.传递带及其在砂体发育中的作用[J].石油与天然气地质,2004,25(2):144-148.CHEN Fa-jing,JIA Qing-su,ZHANG Hong-nian.Trans-fer zone and its relation with distribution of sand bodies[J].Oil&Gas Geology,2004,25(2):144-148.
[3]孙向阳,任建业.东营凹陷北带转换带构造与储集体分布[J].石油勘探与开发,2004,31(1):21-23.SUN Xiang-yang,RENJian-ye.Transfer zone and its rel-ative reservoir distri-bution in northern zone of Dongyingsag[J].Petroleum Exploration and Development,2004,31(1):21-23.
[4]赵红格,刘池阳,杨明慧.调节带和转换带及其在伸展区的分段作用[J].世界地质,2000,19(2):105-111.ZHAO Hong-ge,LIU Chi-yang,YANG Ming-hui.Acco-modation zones and transfer zones and their roles in thesegmentation of the extended terranes[J].World Geolo-gy,2000,19(2):105-111.
[5]DAHLSTROM C D A.Structural geology in the easternmargin of the Canadian Rocky Mountains[J].Bulletin ofCanadian Petroleum Geology,1970,18:229-240.
[6]KING B C.Structural and volcanic evolution of the grego-ry rift valley[C]//BISHOP W W.Geological backgroundto fossil man.Geological Society of London,Scottish Ac-ademic Press,1978:29-54.
[7]MORLEY C K,NELSON R A,PATTON T L,et al.Transfer zones in the east African rift system and theirrelevance to hydrocarbon exploration in rifts[J].AAPGBulletin,1990,74(8):1234-1253.
[8]王纪祥,陈发景,李趁义.山东惠民凹陷伸展构造及调节带特征[J].现代地质,2003,17(2):203-209.WANG Ji-xiang,CHEN Fa-jing,LI Chen-yi.Character-istics of the extensional structures and accommodationzone in the Huimin depression,Shandong Province[J].Geoscience,2003,17(2):203-209.
[9]BOSWORTHW.Geometry of propagating continental rifts[J].Nature,1985,316:625-627.
[10]AMGAD I Younes,KEN Mcclay.Development of ac-commodation zones in the Gulf of Suez-Red Sea rift,E-gypt[J].AAPG Bulletin,2002,86(6):1003-1026.
[11]REYNOLDS D J,ROSENDAHL B R.Tectonic expres-sions of continental rifting[J].Transaction of AmericanGeophysical Union,1984,65:1116-1125.
[12]ROSENDAHL B R,REYNOLDS D J,LORDER P M,et al.Structural expressions in rifting:lesson from lakeTanganyika,Africa[C]//FROSLICK L E,RENAUT RW,REID I.Sedimentation in the African rifts,SpecialPublication 25,Geological Society of London,1986:29-43.
[13]FAULDS J E,VARGA R J.The role of accommodationzones and transfer zones in the regional segmentation ofextended terranes[C]//FAULDS J E,STEWART J H.Accommodation zones and transfer zones:the regionalsegmentation of the basin and range province.SpecialPublication 323,Geological Society of America,1998:1-45.
[14]ADEL R Moustafa.Controls on the geometry of transferzones in the Suez rift and northwest Red Sea:implica-tions for the structural geometry of rift systems[J].AAPG Bulletin,2002,86(6):979-1002.
[15]PEACOEK D C P,SANDERSON D J.Geometry anddevelopment of relay ramps in normal fault systems[J].AAPG Bulletin,1994,78(2):147-165.
[16]PEACOCK D C P.Scaling of transfer zones in the BritishIsles[J].Journal of Structural Geology,2003,25:1561-1567.
[17]刘剑平,汪新文,周章保.伸展地区变换构造研究进展[J].地质科技情报,2000,19(3):27-32.LIU Jian-ping,WANG Xin-wen,ZHOU Zhang-bao.Research advance in transition structure in extended re-gion[J].Geological science and technology informa-tion,2000,19(3):27-32.
[18]徐健,曹冰,罗龙玉.高邮凹陷深大断裂与油气的关系[J].江苏石油学院学报,2003,25(增刊下):27-29.XU Jian,CAO Bing,LUO Long-yu.Relationships ofdiscordogenic faults with hydrocarbon in Gaoyou depres-sion[J].Journal of Jianghan Petroleum Institute,2003,25(sup B):27-29.
[19]PEACOCK D C P,SANDERSON D J.Displacement,segment linkage and relay ramps in normal fault zones[J].Journal of Structural Geology,1991,13:721-733.
[20]BURGESS C F,ROSENDAHL B R,SANDER S,et al.The structure and stratigraphic evolution of Lake Tangan-yika:a case study of continental rifting[C]//MANSPEI-ZER W.Triassic/Jurassic rifting:continental breakupand the origin of the Atlantic Ocean and passive mar-gins:Amsterdam,Elsevier Science,1988:859-881.
[21]冯有良.断陷湖盆沟谷及构造坡折对砂体的控制作用[J].石油学报,2006,27(1):13-16.FENG You-liang.Control of valley and tectonic slope-break zone on sand bodies in rift-subsidence basin[J].Acta Petrolei Sinica,2006,27(1):13-16.
[22]LARSEN P H.Relay structures in a lower Permian base-ment involved extension system,East Greenland[J].Journal of Structural Geology,1988,10:3-8.
[23]HARDING T P.Graben hydrocarbon occurrences andstructural style[J].AAPG Bulletin,1984,68(3):333-362.
[24]CROSSLEY R.Controls of sedimentation in the Malawirift valley,central Africa[J].Sedimentary Geology,2001,40:33-50.
[25]GAWTHORPE R L,HRUST J M.Transfer zones in ex-tensional basins:their structural style and influence ondrainage development and stratigraphy[J].Journal ofthe Geological Society of London,1993,150:1137-1152.
[26]JACKSON J,LEEDER M.Drainage systems and thedevelopment of normal faults:an example from PleasantValley,Nevada[J].Journal of Structural Geology,1994,16:1041-1059.
[27]GAWTHORPE R L,LEEDER M R.Tectono-sedimen-tary evolution of active extensional basins[J].BasinResearch,2000,12:195-218.
[28]周建生,杨池银,陈发景,等.黄骅坳陷横向变换带的构造特征及成因[J].现代地质,1997,11(4):425-433.ZHOU Jian-sheng,YANG Chi-yin,CHEN Fa-jing,etal.Structural characteristics and origin of transversetransfer zone in Huanghua Subbasin[J].Geoscience,1997,11(4):425-433.
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