松辽盆地大庆长垣地区嫩江组二段滑塌扇的发现及其石油地质意义
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摘要
应用三维地震及测井地质剖面,在松辽盆地大庆长垣地区嫩江组二段发现3套滑塌扇体,北部LMD扇体由5个单体组成,垂向呈前积式交叉叠置,总体呈前缘外凸的铲状,近东西走向,最大面积约为95 km~2,最大厚度为62 m;南部Mx扇体由7个单体组成,垂向交叉叠置,平面镶嵌连片,总体走向北北东,总覆盖面积约为61.5 km2,最大厚度为55 m;中部的SET为独立扇体,呈半圆形,近东西走向,面积约为24 km2,最大厚度为92 m;3套扇体均具有根部厚、前端薄的发育特征,而且前端以发育泥岩为主,中部及根部发育2～4层粉砂岩,厚度为0.8～7.0 m;3套扇体及其单体表面均具有弧形地震反射波纹,波纹密度分布在4～10条/km;推测3套扇体最小古坡度为5‰～12‰,最小古水深为30～70 m,滑移距离为2～10km;这一发现为在大型陆相坳陷湖盆中研究滑塌浊积扇体的沉积学特征提供了有利的证据,同时南部Mx扇体已经发现工业油流,因此,这一发现也为在坳陷盆地湖相泥岩中寻找油藏提供了新的思路。
Based on 3D seismic and log curves geological cross section,we have discovered three sets of slump turbidite fans in the second member of the Nenjiang Formation of Daqing Placanticline of the Songliao Basin.The northern fan-LMD fan is composed by five single fans,which are cross-superimposed and foreset in the vertical direction.LMD fan are a convex shovel shape in the front and nearly WE trend,and the maximum area is about 95 km,the maximum thickness is 62 m.The southern fan-MX fan comprises seven single fans,which are cross-superimposed in the vertical direction,and mosaic and contiguous from the plain view.MX fan is NNW strike, and its total affected area is around 61.5 km~2,and the maximum thickness is 55 m.The central SET fan is an independent fan,semi-circular shape,and nearly WE strike,with the area of 24 km~2 and the maximum thickness of 92 m.Three sets of fans are thick at its roots,and thin at its front.There are mainly mudstones in the frontal splay,2～4 layers of siltstones in the middle and at the root,with the thickness of 0.8～7.0 m.The surface of three sets of fans and single fans have arc-like seismic reflected ripple wave,and ripple density is 4～10 waves per kilometer;we have predicted that the palaeoslope of the three sets of fans is 5‰～12‰at least,the minimum depth of water is 30～70 m,and the sliding distance is 2～10 km.This discovery provides strong evidence for studying deposition characteristics of slump turbidite fans in the large-scale depression continental basin and provides a new way for searching reservoirs in the depression lacustrine mudstone basin since industrial oil current have been found in southern MX fan.
Based on 3D seismic and log curves geological cross section,we have discovered three sets of slump turbidite fans in the second member of the Nenjiang Formation of Daqing Placanticline of the Songliao Basin.The northern fan-LMD fan is composed by five single fans,which are cross-superimposed and foreset in the vertical direction.LMD fan are a convex shovel shape in the front and nearly WE trend,and the maximum area is about 95 km,the maximum thickness is 62 m.The southern fan-MX fan comprises seven single fans,which are cross-superimposed in the vertical direction,and mosaic and contiguous from the plain view.MX fan is NNW strike, and its total affected area is around 61.5 km~2,and the maximum thickness is 55 m.The central SET fan is an independent fan,semi-circular shape,and nearly WE strike,with the area of 24 km~2 and the maximum thickness of 92 m.Three sets of fans are thick at its roots,and thin at its front.There are mainly mudstones in the frontal splay,2～4 layers of siltstones in the middle and at the root,with the thickness of 0.8～7.0 m.The surface of three sets of fans and single fans have arc-like seismic reflected ripple wave,and ripple density is 4～10 waves per kilometer;we have predicted that the palaeoslope of the three sets of fans is 5‰～12‰at least,the minimum depth of water is 30～70 m,and the sliding distance is 2～10 km.This discovery provides strong evidence for studying deposition characteristics of slump turbidite fans in the large-scale depression continental basin and provides a new way for searching reservoirs in the depression lacustrine mudstone basin since industrial oil current have been found in southern MX fan.
引文
冯志强,张顺,解习农,安广柱,赵波,侯艳平.2006.松辽盆地嫩江组大型陆相坳陷湖盆湖底水道的发现及其石油地质意义.地质学报,80(8):1226-1232. Feng Zhiqiang,Zhang Shun,Xie Xinong,An Guangzhu,Zhao Bo and Hou Yanping.2006.Discovery of a large-scale lacustrine subaqueous channel in the Nenjiang Formation of the Songliao Basin and its implication on petroleum geology.Acta Geologica Sinica,80(8):1226-1232.
高瑞祺.1980.松辽盆地白垩纪陆相沉积特征.地质学报,(1):11-25. Gao Ruiqi.1980.Characteristics of the continental Cretaceous in the Songliao Basin.Acta Geologica Sinica,(1):11-25.
高瑞祺,蔡希源.1997.松辽盆地油气田形成条件与分布规律.北京:石油工业出版社.1-321. Gao Ruiqi and Cai Xiyuan.1997.Distribution and Formation Conditions of the Oil and Gas Fields in the Songliao Basin. Beijing:Petroleum Industry Press.1-321.
侯启军,冯志强,冯子辉.2009.松辽盆地陆相石油地质学.北京:石油工业出版社.86-101. Hou Qijun,Feng Zhiqiang and Feng Zihui.2009.Continental Petroleum Geology in the Songliao Basin.Beijing:Petroleum Industry Press.86-101.
雷怀玉,邹伟宏,王连军,郑宪,王权,刘珍花.1999.岔西地区浊积岩的发现及其油气勘探意义.沉积学报,17(1): 89-94. Lei Huaiyu,Zou Weihong,Wang Lianjun,Zheng Xian,Wang Quan and Liu Zhenhua.1999.The lurbidite found in Chaxi area and its importance for exploration petroleum.Acta Sedimentologica Sinica,17(1 ):89-94.
李培军,侯泉林,李继亮,孙枢.1997.闽西南地区三叠世西口组浊流沉积.沉积学报,15(4):51-57. Li Peijun,Hou Quanlin,Li Jiliang and Sun Shu.1997.Turbidites in the Lower Triassic Xikou Formation in southwestern Fujian,south China.Acta Sedimentologica Sinica,15(4):51-57.
李文厚,周立发,符俊辉,赵文智,薛良清,靳久强.1997.库车坳陷上三叠统的浊流沉积及其石油地质意义沉积学报, 15(1):21-25. Li Wenhou,Zhou Lifa,Fu Junhui,Zhao Wenzhi,Xue Liangqing and Jin Jiuqiang.1997.Turbidity current deposits and their significance for petroleum geology of Upper Triassic in the Kuqa depression.Acta Sedimentologica Sinica,15(1 ): 21-25.
刘善印,钟大赉,吴根耀.1998.滇西南景谷—镇沅地区第三纪重力流沉积及其地质意义.沉积学报,16(2):50-53. Liu Shanyin,Zhong Dalai and Wu Genyao.1998.Tertiary gravity flow deposits in Jinggu-Zhenyuan region,southwestern Yunnan,and their geological significance.Acta Sedimentologica Sinica,16(2):50-53.
刘忠保,龚文平,张春生,王新海,罗顺社.2006.沉积物重力流砂体形成及分布的沉积模拟试验研究.石油天然气学报,28(3):20-22. Liu Zhongbao,Gong Wenping,Zhang Chunsheng,Wang Xinhai and Luo Shunshe.2006.Experimental study on sedimentary modeling on the formation and distribution of gravity flow sandbody.Journal of Oil and Gas Technology,28(3 ):20- 22.
彭勇民,汪名杰,姚鹏.2000三江地区北部三叠纪深水沉积及其意义.岩石矿物学杂志,19(4):316-322. Peng Yongmin,Wang Mingjie and Yao Peng.2000.Triassic deep-water sediments in northern Three-River area and their implications.Acta Petrologica et Mineralogica,19(4):316-322.
孙连浦,刘招君,李本才,董清水,朱建伟,吴邦吴.2001.水下扇岩相特征及形成机制世界地质,20(3):249-256. Sun Lianpu,Liu Zhaojun,Li Bencai,Dong Qingshui,Zhu Jianwei and Wu Banghao.2001.Submarine fans:Characteristics of rock facies and mechanisms of deposition.Global Geology,20(3 ):249-256.
吴崇筠,李纯菊,刘国华.1988.断陷湖盆中的浊积岩.见:碎屑岩沉积相研究.北京:石油工业出版社.1-17. Wu Chongjun,Li Chunju and Liu Guohua.1988.Turbidite in the rift lake.In:The Study of Clastic Sedimentary Facies.Beijing: Petroleum Industry Press.1 - 17.
张春生,刘忠保,施冬,程启贵,张荣彬,高春宁,李建雄.2002.涌流型浊流形成及发展的实验模拟.沉积学报,20 (1):25-29. Zhang Chunsheng,Liu Zhongbao,Shi Dong,Cheng Qigui,Zhang Rongbin,Gao Chunning and Li Jianxiong.2002.The simulation experiment of surge-type turbidity current formation and development.Acta Sedimentologica Sinica,20(1 ): 25-29.
Bouma A H and Stone C G.2000.Fine-Grained Turbidite Systems.AAPG Memoir,72.1-342.
Elliott T.2000.Megaflute erosion surfaces and the initiation of turbidite channels.Geology,28(2):119 - 122.
Feng Z Q,Zhang S,Cross T A,Feng Z H,Xie X N,Zhao B,Fu X L and Wang C S.2009a.Lacustrine turbidite channels and fans in the Mesozoic Songliao Basin,China.Basin Research,22(1 ):96-107.
Feng Z Q,Jia C Z,Xie X N,Zhang S,Feng Z H and Cross T A.2009b.Tectonostratigraphic unils and stratigraphic sequences of the nonmarine Songliao Basin,northeast China.Basin Research,22(1):79-95.
Galloway W E.1998.Siliciclastic slope and base-of-slope depositional systems:component facies,stratigraphic architecture,and classification.AAPG Bulletin,82(4):569-595.
Mutti E,Tinterri R,Benevelli G,Biase D and Cavanna G.2003.Deltaic,mixed and turbidite sedimentation of ancient foreland basins.Marine and Petroleum Geology,20(6-8):733-755.
Shanmugam G.2000.50 years of the turbidite paradigm(1950s-1990s):Deep-water processes and facies models——A critical perspective.Marine and Petroleum Geology,17(2):285-342.
Weimer P and Link M H.1991.Seismic Facies and Sedimentary Processes of Submarine Fans and Turbidite systems.New York:Springer-Verlag.1-447.
Weimer P,Crows J R,Crow R S and Varnai P.1998.Atlas of petroleum fields and discoveries,northern Green Canyon, Ewing Banks,and southern Ship Shoal and South Timbalier areas(offshore Louisiana),northern Gulf of Mexico. AAPG Bulletin,82(5B):878-917.
高瑞祺.1980.松辽盆地白垩纪陆相沉积特征.地质学报,(1):11-25. Gao Ruiqi.1980.Characteristics of the continental Cretaceous in the Songliao Basin.Acta Geologica Sinica,(1):11-25.
高瑞祺,蔡希源.1997.松辽盆地油气田形成条件与分布规律.北京:石油工业出版社.1-321. Gao Ruiqi and Cai Xiyuan.1997.Distribution and Formation Conditions of the Oil and Gas Fields in the Songliao Basin. Beijing:Petroleum Industry Press.1-321.
侯启军,冯志强,冯子辉.2009.松辽盆地陆相石油地质学.北京:石油工业出版社.86-101. Hou Qijun,Feng Zhiqiang and Feng Zihui.2009.Continental Petroleum Geology in the Songliao Basin.Beijing:Petroleum Industry Press.86-101.
雷怀玉,邹伟宏,王连军,郑宪,王权,刘珍花.1999.岔西地区浊积岩的发现及其油气勘探意义.沉积学报,17(1): 89-94. Lei Huaiyu,Zou Weihong,Wang Lianjun,Zheng Xian,Wang Quan and Liu Zhenhua.1999.The lurbidite found in Chaxi area and its importance for exploration petroleum.Acta Sedimentologica Sinica,17(1 ):89-94.
李培军,侯泉林,李继亮,孙枢.1997.闽西南地区三叠世西口组浊流沉积.沉积学报,15(4):51-57. Li Peijun,Hou Quanlin,Li Jiliang and Sun Shu.1997.Turbidites in the Lower Triassic Xikou Formation in southwestern Fujian,south China.Acta Sedimentologica Sinica,15(4):51-57.
李文厚,周立发,符俊辉,赵文智,薛良清,靳久强.1997.库车坳陷上三叠统的浊流沉积及其石油地质意义沉积学报, 15(1):21-25. Li Wenhou,Zhou Lifa,Fu Junhui,Zhao Wenzhi,Xue Liangqing and Jin Jiuqiang.1997.Turbidity current deposits and their significance for petroleum geology of Upper Triassic in the Kuqa depression.Acta Sedimentologica Sinica,15(1 ): 21-25.
刘善印,钟大赉,吴根耀.1998.滇西南景谷—镇沅地区第三纪重力流沉积及其地质意义.沉积学报,16(2):50-53. Liu Shanyin,Zhong Dalai and Wu Genyao.1998.Tertiary gravity flow deposits in Jinggu-Zhenyuan region,southwestern Yunnan,and their geological significance.Acta Sedimentologica Sinica,16(2):50-53.
刘忠保,龚文平,张春生,王新海,罗顺社.2006.沉积物重力流砂体形成及分布的沉积模拟试验研究.石油天然气学报,28(3):20-22. Liu Zhongbao,Gong Wenping,Zhang Chunsheng,Wang Xinhai and Luo Shunshe.2006.Experimental study on sedimentary modeling on the formation and distribution of gravity flow sandbody.Journal of Oil and Gas Technology,28(3 ):20- 22.
彭勇民,汪名杰,姚鹏.2000三江地区北部三叠纪深水沉积及其意义.岩石矿物学杂志,19(4):316-322. Peng Yongmin,Wang Mingjie and Yao Peng.2000.Triassic deep-water sediments in northern Three-River area and their implications.Acta Petrologica et Mineralogica,19(4):316-322.
孙连浦,刘招君,李本才,董清水,朱建伟,吴邦吴.2001.水下扇岩相特征及形成机制世界地质,20(3):249-256. Sun Lianpu,Liu Zhaojun,Li Bencai,Dong Qingshui,Zhu Jianwei and Wu Banghao.2001.Submarine fans:Characteristics of rock facies and mechanisms of deposition.Global Geology,20(3 ):249-256.
吴崇筠,李纯菊,刘国华.1988.断陷湖盆中的浊积岩.见:碎屑岩沉积相研究.北京:石油工业出版社.1-17. Wu Chongjun,Li Chunju and Liu Guohua.1988.Turbidite in the rift lake.In:The Study of Clastic Sedimentary Facies.Beijing: Petroleum Industry Press.1 - 17.
张春生,刘忠保,施冬,程启贵,张荣彬,高春宁,李建雄.2002.涌流型浊流形成及发展的实验模拟.沉积学报,20 (1):25-29. Zhang Chunsheng,Liu Zhongbao,Shi Dong,Cheng Qigui,Zhang Rongbin,Gao Chunning and Li Jianxiong.2002.The simulation experiment of surge-type turbidity current formation and development.Acta Sedimentologica Sinica,20(1 ): 25-29.
Bouma A H and Stone C G.2000.Fine-Grained Turbidite Systems.AAPG Memoir,72.1-342.
Elliott T.2000.Megaflute erosion surfaces and the initiation of turbidite channels.Geology,28(2):119 - 122.
Feng Z Q,Zhang S,Cross T A,Feng Z H,Xie X N,Zhao B,Fu X L and Wang C S.2009a.Lacustrine turbidite channels and fans in the Mesozoic Songliao Basin,China.Basin Research,22(1 ):96-107.
Feng Z Q,Jia C Z,Xie X N,Zhang S,Feng Z H and Cross T A.2009b.Tectonostratigraphic unils and stratigraphic sequences of the nonmarine Songliao Basin,northeast China.Basin Research,22(1):79-95.
Galloway W E.1998.Siliciclastic slope and base-of-slope depositional systems:component facies,stratigraphic architecture,and classification.AAPG Bulletin,82(4):569-595.
Mutti E,Tinterri R,Benevelli G,Biase D and Cavanna G.2003.Deltaic,mixed and turbidite sedimentation of ancient foreland basins.Marine and Petroleum Geology,20(6-8):733-755.
Shanmugam G.2000.50 years of the turbidite paradigm(1950s-1990s):Deep-water processes and facies models——A critical perspective.Marine and Petroleum Geology,17(2):285-342.
Weimer P and Link M H.1991.Seismic Facies and Sedimentary Processes of Submarine Fans and Turbidite systems.New York:Springer-Verlag.1-447.
Weimer P,Crows J R,Crow R S and Varnai P.1998.Atlas of petroleum fields and discoveries,northern Green Canyon, Ewing Banks,and southern Ship Shoal and South Timbalier areas(offshore Louisiana),northern Gulf of Mexico. AAPG Bulletin,82(5B):878-917.
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