塔北隆起轮东斜坡带断层特征与油气关系
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摘要
古生界走滑断层及中新生界继承性正断层是轮东斜坡带最主要断裂构造类型。在新三维地震资料解释基础上,研究分析该区断层特征、成因及演化,探讨其石油地质意义。结果表明,该区古生界走滑断层切面上具形迹丰富、共轭、雁列构造特征,中新生界正断层密集发育。剖面上走滑断层具断面陡直,中新生界正断层呈花状构造特点,并具典型"海豚效应"和"丝带效应"。受区域剪切作用形成的挤压应力场影响,区内走滑断层形成于海西中晚期,并在中新生界长期继承性活动,形成花状构造。该断层对区内石油运聚及再分布具重要影响,它控制了轮东斜坡带寒武—奥陶系地层构造样式,改善了寒武—奥陶系碳酸盐岩地层储层储集性能,提高了岩溶发育程度,从而影响着区内油气成藏和油气分布特征。
Strike-slip faults are the most important faulted structural elements in LunDong slope zone.The characteristics,genesis and petroleum geological significance of strike-slip fault in the study area were studied base on the latest 3D seismic data.The result shows that strike-slip faults have the characteristics of abundant appearance,conjugate and en echelon structure in the horizontal sections,and there developed strike-slip faults with very steep section,flower structure,dolphin effect phenomena and ribbon effect phenomena in the vertical sections.The strike-slip faults were generated in the middle and late Hercynian,and its long-term successive active was influenced by the regional stress field,which was caused by the shear action.Additionally,the strike-skip faults have a very significant impact on hydrocarbon migration,accumulation,preservation and redistribution by determining the tectonic styles of Cambrian-Ordovician stratigraphy,enhancing the reservoir physical property of Cambrian-Ordovician stratigraphy,increasing the karstification of reservoirs,and the influencing the formation and distribution of oil and gas reservoirs.
Strike-slip faults are the most important faulted structural elements in LunDong slope zone.The characteristics,genesis and petroleum geological significance of strike-slip fault in the study area were studied base on the latest 3D seismic data.The result shows that strike-slip faults have the characteristics of abundant appearance,conjugate and en echelon structure in the horizontal sections,and there developed strike-slip faults with very steep section,flower structure,dolphin effect phenomena and ribbon effect phenomena in the vertical sections.The strike-slip faults were generated in the middle and late Hercynian,and its long-term successive active was influenced by the regional stress field,which was caused by the shear action.Additionally,the strike-skip faults have a very significant impact on hydrocarbon migration,accumulation,preservation and redistribution by determining the tectonic styles of Cambrian-Ordovician stratigraphy,enhancing the reservoir physical property of Cambrian-Ordovician stratigraphy,increasing the karstification of reservoirs,and the influencing the formation and distribution of oil and gas reservoirs.
引文
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[20]吕优良,汤达祯,吕玉民.轮古西地区奥陶系鹰山组储层地质特征及综合预测[J].新疆地质,2012,30(3):210-213.
[21]凌东明.轮古东地区地层岩性圈闭地震识别技术[D].中国石油大学,2008.
[22]漆家福,夏义平,杨桥.油区构造解析[M].北京:石油工业出版社,2006.
[23]杨海军,郝芳,韩剑发,等.塔里木盆地轮南低凸起断层系统与复式油气聚集[J].地质科学,2007,(4):795-811.
[24]王福焕,王振宇,张云峰,等.轮古东奥陶系断裂特征及其对油气成藏的控制[J].中国石油勘探,2011,1:15-21.
[2]Aydin A.2000.Fractures,faults,and hydrocarbon entrapment,migra-tion and flow[J].Marine and Petroleum Geology,17(7):797-814.
[3]Wibberley CA,Shimamoto T.Internal structure and permeability ofmajor strike-slip fault zones:The Median Tectonic Line in Mie Pre-fecture,southwest Japan[J].Journal of Structural Geology,2003,25(1):59-78.
[4]金之钧,张发强.油气运移研究现状及主要进展[J].石油与天然气地质,2005,26(3):263-270.
[5]Graham WB,Girbacea R,Mesonjesi A et al.Evolution of fractureand fault-controlled fluid pathways in carbonates of the Albanidesfold-thrust belt[J].AAPG Bulletin,2006,90(8):1227-1249.
[6]罗群,姜振学,庞雄奇.断裂控藏机理与模式[M].北京:石油工业出版社,2007,1-318.
[7]Faulkner DR,Jackson CAL,Lunn RJ et al.A review of recent devel-opments concerning the structure,mechanics and fluid flow proper-ties of fault zones[J].Journal of Structural Geology,2010,32:1557-1575.
[8]邬光辉,杨海军,屈泰来,等.塔里木盆地塔中隆起断裂系统特征及其对海相碳酸盐岩油气的控制作用[J].岩石学报,2012,28(3):793-805.
[9]Leighton MW,Kolata PR,Oltz DF et al.Interior cratonic basins[J].AAPG Memoirs,1990,51:1-819.
[10]Levorsen AI.Geology of Petroleum[M].2nd Edition.Tulsa:The AAPGFoundation,2001,1-700.
[11]汤良杰.塔里木盆地构造演化和构造样式[M].北京:地质出版社,1996,1-136.
[12]贾承造.中国塔里木盆地构造特征与油气[M].北京:石油工业出版社,1997,1-438.
[13]Jia D.Structural features of northern Tarim basin:Implications forregional tectonics and petroleum traps[J].AAPG Bulletin,1998,82(1):147-159.
[14]何登发,周新源,杨海军,等.塔里木盆地克拉通内古隆起的成因机制与构造类型[J].地学前缘,2008,15(2):207-221.
[15]刘学锋,时卫东,彭德堂,等.塔北隆起张性构造带形成机制与油气关系[J].新疆石油地质,1997,18(1):13-18.
[16]魏国齐,贾承造,施央申,等.塔北隆起北部中新生界张扭性断裂系统特征[J].石油学报,2001,22(1):19-25.
[17]崔泽宏,王志欣,汤良杰.塔北隆起北部叠加断裂构造特征与成因背景分析[J].中国地质,2005,32(3):378-385.
[18]计雄飞,赵溪奎,傅劲翔,等.塔北地区阿克库勒凸起断裂特征及其与油气成藏的关系[J].物探化探计算计算,2008,30(5):394-399.
[19]王延欣,侯贵廷,李江海,等.塔北隆起中西部新近纪末构造应力场数值模拟[J].北京大学学报(自然科学版),2008,3(1):53-59.
[20]吕优良,汤达祯,吕玉民.轮古西地区奥陶系鹰山组储层地质特征及综合预测[J].新疆地质,2012,30(3):210-213.
[21]凌东明.轮古东地区地层岩性圈闭地震识别技术[D].中国石油大学,2008.
[22]漆家福,夏义平,杨桥.油区构造解析[M].北京:石油工业出版社,2006.
[23]杨海军,郝芳,韩剑发,等.塔里木盆地轮南低凸起断层系统与复式油气聚集[J].地质科学,2007,(4):795-811.
[24]王福焕,王振宇,张云峰,等.轮古东奥陶系断裂特征及其对油气成藏的控制[J].中国石油勘探,2011,1:15-21.
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