松辽盆地南部拗陷期湖盆底形演化及充填序列
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摘要
根据地震、钻井、岩心及测井资料,将松辽盆地南部青山口组三段—嫩江组一段划分为青三层序、姚家层序和嫩一层序。基于地层等时格架,应用回剥法经去压实和古水深校正,对松辽盆地南部湖盆底形特征进行了恢复。研究结果表明,松辽盆地南部拗陷期湖盆坡折带的发育程度受控于盆地的差异沉降以及沉积物供给速率,随着大地热流值的逐渐降低,湖盆坡折越来越不明显;而坡折带的发育程度对盆地的充填序列和沉积格局有重要影响。其中,青三层序坡折带发育明显,湖盆表现为深水拗陷沉积;姚家层序坡折发育不明显,表现为宽浅氧化湖盆;嫩一层序湖盆底形平缓,受湖侵影响,表现为广阔深水湖盆。
Based on the seismic,drilling,core and logging data,the sequence stratigraphy framework from the Member 3 of Qingshankou Formation to the Member 1 of Nenjiang Formation was divided into three sequences of Qing-3,Yaojia and Neng-1.On the basis of the isochronous stratigraphy framework,the back-stripping inversion method was applied to paleoburial depth reconstruction and paleobathymetric correction.The paleogeomorphology at the bottom of the southern Songliao Basin was rebuilt.The bottom shape of the lake basin and the deposit supply controlled the development of the slope break belt.The bottom of the lake basin had no significantly change with the decline of the geothermal flux value.The development of slope break belt played very important role in the formation of filling sequences and facies tracts of the lake basin in the southern Songliao Basin.The Qing-3 Sequence was of obvious slope break resulting in deepwater deposition.The Yaojia Sequence was not obvious and showed the wide and shallow oxidized lake-basin.The Neng-1 Sequence was a broad deepwater lake-basin with a gentle bottom.
Based on the seismic,drilling,core and logging data,the sequence stratigraphy framework from the Member 3 of Qingshankou Formation to the Member 1 of Nenjiang Formation was divided into three sequences of Qing-3,Yaojia and Neng-1.On the basis of the isochronous stratigraphy framework,the back-stripping inversion method was applied to paleoburial depth reconstruction and paleobathymetric correction.The paleogeomorphology at the bottom of the southern Songliao Basin was rebuilt.The bottom shape of the lake basin and the deposit supply controlled the development of the slope break belt.The bottom of the lake basin had no significantly change with the decline of the geothermal flux value.The development of slope break belt played very important role in the formation of filling sequences and facies tracts of the lake basin in the southern Songliao Basin.The Qing-3 Sequence was of obvious slope break resulting in deepwater deposition.The Yaojia Sequence was not obvious and showed the wide and shallow oxidized lake-basin.The Neng-1 Sequence was a broad deepwater lake-basin with a gentle bottom.
引文
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[12]王颖,王英民,王晓洲,等.松辽盆地西部坡折带的成因演化及其对地层分布模式的控制作用[J].沉积学报,2005,23(3):498-505.Wang Ying,Wang Yingmin;Wang Xiaozhou,et al.The originand evolution of slope break belt and its effect on stratigraphydistribution in large down-warped lake Basin[J].Acta Sedimen-tologica Sinica,2005,23(3):498-505.
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[14]王颖,王英民,赵志魁,等.松辽盆地南部泉头组四段—姚家组西部坡折带的成因及演化[J].石油勘探与开发,2005,32(3):33-36.Wang Ying,Wang Yingmin,Zhao Zhikui,et al.Origin and evolu-tion of the west slope belt in Member4of Quantou Formation toYaojia Formation,South Songliao Basin[J].Petroleum Explora-tion and Development,2005,32(3):33-36.
[15]关振良.利用压实模拟计算地层古厚度及差异压实量的尝试[J].石油实验地质,1992,14(2):152-158.Guan Zhenliang.An attempt to calculate the primary thicknessand the amount of differential compaction in a formation with anapplication of compaction simulations[J].Experimental Petrole-um Geology,1992,14(2):152-158.
[16]郭少斌,孙绍寒.周家湾地区前侏罗纪古地貌恢复及油气富集规律[J].地球科学———中国地质大学学报,2006,31(3):372-377.Guo Shaobin,Sun Shaohan.Rebuilding paleogeomorphology ofpre-Jurassic and oil-gas accumulation regulation in Zhoujiawanarea[J].Earth Science:Journal of China University of Geosci-ences,2006,31(3):372-377.
[17]Ungerer P F,Bessis F,Chenet P Y,et al.Geological and geo-chemical models in oil exploration:Principle and practicle exam-ple[G].AAPG Menoir35,1984:53-77.
[18]毛小平,李绍虎,刘刚,等.复杂条件下的回剥反演方法———最大深度法[J].地球科学———中国地质大学学报,1998,23(3):277-280.Mao Xiaoping,Li Shaohu,Liu Gang,et al.A backstripping inver-sion method in a complex condition———maximum depth method[J].Earth Science:Journal of China University of Geosciences,1998,23(3):277-280.
[19]邵新军,刘震,崔文富.沉积盆地地层古埋深的恢复[J].石油勘探与开发,1999,26(3):33-35.Shao Xinjun,Liu Zhen,Cui Wenfu.Restoration of the paleoburialdepth of strata in deposition basin[J].Petroleum Exploration andDevelopment,1999,26(3):33-35.
[20]迟元林,云金表,蒙启安,等.松辽盆地深部结构及成盆动力学与油气聚集[M].北京:石油工业出版社,2002:113-221.Chi Yuanlin,Yun Jinbiao,Meng Qi’an,et al.Deeped structureand basin dynamics and hydrocarbon accumulation[M].Beijing:Petroleum Industry Press,2002:113-221.
[2]王英民,金武弟,刘书会,等.断陷湖盆多级坡折带的成因类型、展布及其勘探意义[J].石油与天然气地质,2003,24(3):199-203.Wang Yingmin,Jin Wudi,Liu Shuhui,et al.Genetic types,distri-bution and exploratiom significance of multistage slope breaks inrift lacustrine basin[J].Oil&Gas Geology,2003,24(3):199-203.
[3]林畅松,潘元林,肖建新,等.“构造坡折带”———断陷盆地层序分析和油气预测的重要概念[J].地球科学———中国地质大学学报,2000,25(3):260-265.Lin Changsong,Pan Yuanlin,Xiao Jianxin,et al.Structural slope-break zone:Key concept for stratigraphic sequence analysis andpetroleum forecasting in fault subsidence basins[J].Earth Sci-ence:Journal of China University of Geosciences,2000,25(3):260-265.
[4]刘豪,王英民,王媛,等.大型坳陷湖盆坡折带的研究及其意义———以准噶尔盆地西北缘侏罗纪坳陷湖盆为例[J].沉积学报,2004,22(1):95-102.Liu Hao,Wang Yingmin,Wang Yuan,et al.Study on slopebreaks in large down warped lake basins and its significance:Acase study from Jurassic lake in northwestern Junggar Basin[J].Acta Sedimentologica Sinica,2004,22(1):95-102.
[5]王英民,刘豪,李立诚,等.准噶尔大型坳陷湖盆坡折带的类型和分布特征[J].地球科学———中国地质大学学报,2002,27(6):683-688.Wang Yingmin,Liu Hao,Li Licheng,et al.Types and distribu-tion characteristics of slope breaks of large-type down-warpedlake basins[J].Earth Science:Journal of China University of Ge-osciences,2002,27(6):683-688.
[6]冯有良,徐秀生.同沉积构造坡折带对岩性油气藏富集带的控制作用———以渤海湾盆地古近系为例[J].石油勘探与开发,2006,33(1):22-31.Feng Youliang,Xu Xiusheng.Syndepositional structural slope-break zone controls on lithologic reservoirs:A case from Paleo-gene Bohai Bay Basin[J].Petroleum Expoloration and Develop-ment,2006,33(1):22-31.
[7]魏魁生,徐怀大,叶淑芬,等.松辽盆地白垩纪系高分辨率层序地层格架[J].石油与天然气地质,1997,18(1):8-14.Wei Kuisheng,Xu Huaida,Ye Shufen,et al.High resolution se-quence stratigraphic framework in Cretaceous,Songliao Basin[J].Oil&Gas Geology,1997,18(1):8-14.
[8]王多云,李树同,王彬,等.鄂尔多斯盆地三叠纪延长期湖盆底形形态和岩性油藏分布特征[J].低渗透油气田,2006,11(3):12-21.Wang Duoyun,Li Shutong,Wang Bin,et al.Shape of lake basinbottom and characteristics of lithologic reservoir distribution inYanchang Age,Triassic of Ordos Basin[J].Low PermeabilityOil-gas Field,2006,11(3):12-21.
[9]王永春.松辽盆地南部岩性油藏的形成和分布[M].北京:石油工业出版社,2001:3-6.Wang Yongchun.The formation and distribution of lithologicalreservoir in the south of Songliao Basin[M].Beijing:PetroleumIndustry Press,2001:3-6.
[10]王嗣敏,刘招君,董清水,等.陆相盆地层序地层形成机制分析———以松辽盆地为例[J].长春科技大学学报,2000,30(2):139-144.Wang Simin,Liu Zhaojun,Dong Qingshui,et al.The mechanismof formation analysis of continental sequence stratigraphy[J].Journal of Changchun University of Science and Technology,2000,30(2):139-144.
[11]王建功,卫平生,郑浚茂,等.挠曲坡折带特征与油气勘探———以松辽盆地南部为例[J].石油学报,2005,26(2):26-29.Wang Jiangong,Wei Pingsheng,Zheng Junmao,et al.Features offlexure slope break and oil-gas exploration in the south of Songli-ao Basin[J].Acta Petrolei Sinica,2005,26(2):26-29.
[12]王颖,王英民,王晓洲,等.松辽盆地西部坡折带的成因演化及其对地层分布模式的控制作用[J].沉积学报,2005,23(3):498-505.Wang Ying,Wang Yingmin;Wang Xiaozhou,et al.The originand evolution of slope break belt and its effect on stratigraphydistribution in large down-warped lake Basin[J].Acta Sedimen-tologica Sinica,2005,23(3):498-505.
[13]孙钰,钟建华,姜在兴,等.松辽盆地南部坳陷期层序地层研究[J].中国石油大学学报:自然科学版,2006,30(5):1-7.Sun Yu,Zhong Jianhua,Jiang Zaixing,et al.Study of sequencestratigraphy of depression period in southern Songliao Basin[J].Journal of China University of Petroleum:Edition of Natural Sci-ence,2006,30(5):1-7.
[14]王颖,王英民,赵志魁,等.松辽盆地南部泉头组四段—姚家组西部坡折带的成因及演化[J].石油勘探与开发,2005,32(3):33-36.Wang Ying,Wang Yingmin,Zhao Zhikui,et al.Origin and evolu-tion of the west slope belt in Member4of Quantou Formation toYaojia Formation,South Songliao Basin[J].Petroleum Explora-tion and Development,2005,32(3):33-36.
[15]关振良.利用压实模拟计算地层古厚度及差异压实量的尝试[J].石油实验地质,1992,14(2):152-158.Guan Zhenliang.An attempt to calculate the primary thicknessand the amount of differential compaction in a formation with anapplication of compaction simulations[J].Experimental Petrole-um Geology,1992,14(2):152-158.
[16]郭少斌,孙绍寒.周家湾地区前侏罗纪古地貌恢复及油气富集规律[J].地球科学———中国地质大学学报,2006,31(3):372-377.Guo Shaobin,Sun Shaohan.Rebuilding paleogeomorphology ofpre-Jurassic and oil-gas accumulation regulation in Zhoujiawanarea[J].Earth Science:Journal of China University of Geosci-ences,2006,31(3):372-377.
[17]Ungerer P F,Bessis F,Chenet P Y,et al.Geological and geo-chemical models in oil exploration:Principle and practicle exam-ple[G].AAPG Menoir35,1984:53-77.
[18]毛小平,李绍虎,刘刚,等.复杂条件下的回剥反演方法———最大深度法[J].地球科学———中国地质大学学报,1998,23(3):277-280.Mao Xiaoping,Li Shaohu,Liu Gang,et al.A backstripping inver-sion method in a complex condition———maximum depth method[J].Earth Science:Journal of China University of Geosciences,1998,23(3):277-280.
[19]邵新军,刘震,崔文富.沉积盆地地层古埋深的恢复[J].石油勘探与开发,1999,26(3):33-35.Shao Xinjun,Liu Zhen,Cui Wenfu.Restoration of the paleoburialdepth of strata in deposition basin[J].Petroleum Exploration andDevelopment,1999,26(3):33-35.
[20]迟元林,云金表,蒙启安,等.松辽盆地深部结构及成盆动力学与油气聚集[M].北京:石油工业出版社,2002:113-221.Chi Yuanlin,Yun Jinbiao,Meng Qi’an,et al.Deeped structureand basin dynamics and hydrocarbon accumulation[M].Beijing:Petroleum Industry Press,2002:113-221.
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