松辽盆地北部青山口组四级层序划分及界面特征
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摘要
根据单井沉积旋回对比,结合地震反射特征分析,本文将青山口组划分为3个三级层序,8个四级层序。四级层序界面主要有:1)河道冲蚀底界,表现为砾石层或砂砾岩层、内碎屑泥砾、钙砾或生物成因的灰质河道滞留物,测井曲线多为钟形;2)地表暴露面,表现为根土岩、古土壤层、紫红色泥岩或杂色泥岩、岩相突变带以及钙质结核层,测井曲线多为漏斗形;3)沉积物卸载区和滨岸带,出现钙质砂岩层、介形虫层等特殊沉积,测井曲线多具指形特征。层序界面的地震响应特征有:1)近物源的上坡折区,地震波组表现为削截或冲刷充填;2)坡折带发育区,地震波组表现为上超,亦见下超和顶超;3)强振幅反射同相轴所示的上、下地层的截然差异;4)地震波阻抗反演剖面波组上、下的截然差异等。松辽盆地北部青山口组的四级层序的划分及界面识别,为进一步建立四级层序格架奠定了基础。
Based on sedimentary cycle correlation of single well and analysis of seismic reflection characters,Qingshankou Formation in the northern Songliao Basin was divided into three third- order sequences and eight fourth-order sequences.The main fourth-order sequence boundaries were as follow:1) channel erosion bottom,showing as gravel beds,glutinite beds,intraclast mud pebble,calcigravel or biogenesis limy channel lag deposit,with campaniform logging curve,2) surface exposure,showing as seat stone,ancient soil beds,mauve-varicoloured mudstone,litho- facies abrupt change and calcareous concretion beds,with logging curve being infundibuliform- shaped,and 3) sediments download area and lake-board,having particular sediments such as calcareous sandstone and ostracoda beds,with dactyline logging curve.The seismic response features of sequence boundary were as follow:1) near provenance and upper slope break,seis- mic train of waves showing as truncated or washing-filling reflectors,2) slope break area,seis- mic train of waves showing as onlap,sometimes downlap or toplap,3) sharp difference between upper and lower stratum shown by high amplitude reflection event,and 4) sharp difference be- tween upper and lower train of waves on seismic wave impedance section.The dividing and boundary recognizing of the fourth-order sequence laid the foundation to further establish the fourth-order sequence framework for Qingshankou Formation in the northern Songliao Basin.
Based on sedimentary cycle correlation of single well and analysis of seismic reflection characters,Qingshankou Formation in the northern Songliao Basin was divided into three third- order sequences and eight fourth-order sequences.The main fourth-order sequence boundaries were as follow:1) channel erosion bottom,showing as gravel beds,glutinite beds,intraclast mud pebble,calcigravel or biogenesis limy channel lag deposit,with campaniform logging curve,2) surface exposure,showing as seat stone,ancient soil beds,mauve-varicoloured mudstone,litho- facies abrupt change and calcareous concretion beds,with logging curve being infundibuliform- shaped,and 3) sediments download area and lake-board,having particular sediments such as calcareous sandstone and ostracoda beds,with dactyline logging curve.The seismic response features of sequence boundary were as follow:1) near provenance and upper slope break,seis- mic train of waves showing as truncated or washing-filling reflectors,2) slope break area,seis- mic train of waves showing as onlap,sometimes downlap or toplap,3) sharp difference between upper and lower stratum shown by high amplitude reflection event,and 4) sharp difference be- tween upper and lower train of waves on seismic wave impedance section.The dividing and boundary recognizing of the fourth-order sequence laid the foundation to further establish the fourth-order sequence framework for Qingshankou Formation in the northern Songliao Basin.
引文
蔡希源,李思田.2004． 陆相盆地高精度层序地层学(一).北京:地质出版社.107-132． Cai Xiyuan and Li Sitian.2004． High Resolution Sequence Stratigraphy in Lacustrine Basin (1) .Beijing:Geological Publ.House.107-132．
邓宏文,王红亮,王居峰,谢晓军,苏宗富,尚尔杰.2004． 层序地层构成与层序控砂、控藏的自相似性特征--以三角洲-浊积扇体系为例.石油与天然气地质,25(5) :491-495．Deng Hongwen,Wang Hongliang,Wang Jufeng,Xie Xiaojun,Su Zongfu and Shang Erjie.2004． Self-similarity of constitution of sequence stratigraphy and distribution of sandbodies and lithologic reservoirs:taking delta-turbidite fan system as an example.Oil & Gas Geology,25 (5) :491-495．
付晓飞,王朋岩,吕延防,付广,杨勉,孟庆芬2007． 松辽盆地西部斜坡构造特征及对油气成藏的控制.地质科学,42(2) :209-222．Fu Xiaofei,Wang Pengyan,Lü Yanfang,Fu Guang,Yang Mian and Meng Qingfen.2007． Tectonic features and control of oilgas accumulation in the West Slope of Songliao Basin.Chinese Jour.Geol.,42 (2) :209-222．
高瑞祺,蔡希源,徐宏,迟元林.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.1-78ao Ruiqi,Cai Xiyuan,Xu Hong and Chi Yuaulin.1997． The Forming Conditions and Distribution Rules of Oil-Gas Fields in
Songliao Basin.Beijing:Petroleum Industry Press.1-78．
郭秀蓉,刘晓峰,姜 涛.2007． 垦西油田东营组高分辨率层序地层与沉积微相研究徐家围子断陷天然气分布规律及其主控因素.大庆石油地质与开发,26(6) :1-5． Guo Xiurong,Liu Xiaofeng and Jiang Tao.2007． Study on high resolution sequence stratigraphy and sedimentary microfacies of Dongying Formation,Kenxi Oil Field.Petroleum Geology & Oilflield Development in Daqing,26 (6) :1-5．
李君文,陈洪德,田景春.2007． 鄂尔多斯盆石千峰组高分辨率层序地层学特征.大庆石油地质与开发,26(1) :45-49． Li Junwen,Chen Hongde and Tian Jingchun.2007． High resolution sequence stratigraphy characteristics of Shiqianfeng Formation in Ordos Basin.Petroleum Geology & Oilfield Development in Daqing.26(1) :45-49．
魏魁生.1996． 非海相层序地层学.北京:地质出版社.84-85．
Wei Kuisheng.1996． Non Marine Sequence Stratigraphy.Beijing:Geological Publ.House.84-85．
叶德燎2005松辽盆地东南隆起区下白垩统层序地层格架及油气成藏规律.地质科学,40(2) :227-236． Ye Deliao.2005． Lower Cretaceous sequence stratigraphic framework and hydrocarbon accumulation in the Southeast Rise, Songliao Basin.Chinese Jour.Geol.,40 (2) :227-236．
邹才能,陶士振,谷志东.2006． 陆相坳陷盆地层序地层格架下岩性地层圈闭/油藏类型与分布规律--以松辽盆地白垩系泉头组-嫩江组为例.地质科学,41(4) :711-719． Zou Caineug,Tao Shizhen and Gu Zhidong.2006． Types and distributions of litho-stratigraphic traps/reservoirs in sequence stratigraphic framework in continenlal depressional basin:An example from the Cretaceous in The Songliao Basin.Chinese Jour.Geol.,41(4) :711-719．
Aitken J F and Howell J A.1996． High-resolution sequence stratigraphy:innovation,application and future prospects.in:Howell J A and Aitken J F.eds.High Resolution Sequence Stratigraphy,Innovations and Application.London:Geology Society Special publication.104:1-9．
Brett C E,Goodman W M and Loduca S T.1990． Sequence,cycles,and basin dynamics in the Silurian of the Appalachian Foreland Basin.Sedimentary Geology,69:191-224．
Carroll A R and Bohacs K M.1999． Stratigraphic classification of ancient lakes:balancing teclonic and climatic controls.Geology,27(2) :99-102．
Cross T A and Lessenger M A.1998． Sediment volume partitioning:Rationale for stratigraphic model evaluation and high-resolution stratigraphic correlation.in:Gradstein F M,Sandvik K O and Milton N J.eds.Sequence Stratigraphy:Concepts and Applications.NPF Special Publication.8:171-195．
Mitchum R M Jr and Van Wagoner J C.1991． High frequency sequence and their stacking patter:Sequence stratigraphic evidence of high frequency eustatic cycles.Sedimentary Geology,70:131-160．
Posamentier H W,Allen G P and Jamses D P.1992． High resolution sequence stratigraphy--the East Coulee Delta,Alberta.Journal of Sedimentary Petrology,62 (2) :310-317．
邓宏文,王红亮,王居峰,谢晓军,苏宗富,尚尔杰.2004． 层序地层构成与层序控砂、控藏的自相似性特征--以三角洲-浊积扇体系为例.石油与天然气地质,25(5) :491-495．Deng Hongwen,Wang Hongliang,Wang Jufeng,Xie Xiaojun,Su Zongfu and Shang Erjie.2004． Self-similarity of constitution of sequence stratigraphy and distribution of sandbodies and lithologic reservoirs:taking delta-turbidite fan system as an example.Oil & Gas Geology,25 (5) :491-495．
付晓飞,王朋岩,吕延防,付广,杨勉,孟庆芬2007． 松辽盆地西部斜坡构造特征及对油气成藏的控制.地质科学,42(2) :209-222．Fu Xiaofei,Wang Pengyan,Lü Yanfang,Fu Guang,Yang Mian and Meng Qingfen.2007． Tectonic features and control of oilgas accumulation in the West Slope of Songliao Basin.Chinese Jour.Geol.,42 (2) :209-222．
高瑞祺,蔡希源,徐宏,迟元林.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.1-78ao Ruiqi,Cai Xiyuan,Xu Hong and Chi Yuaulin.1997． The Forming Conditions and Distribution Rules of Oil-Gas Fields in
Songliao Basin.Beijing:Petroleum Industry Press.1-78．
郭秀蓉,刘晓峰,姜 涛.2007． 垦西油田东营组高分辨率层序地层与沉积微相研究徐家围子断陷天然气分布规律及其主控因素.大庆石油地质与开发,26(6) :1-5． Guo Xiurong,Liu Xiaofeng and Jiang Tao.2007． Study on high resolution sequence stratigraphy and sedimentary microfacies of Dongying Formation,Kenxi Oil Field.Petroleum Geology & Oilflield Development in Daqing,26 (6) :1-5．
李君文,陈洪德,田景春.2007． 鄂尔多斯盆石千峰组高分辨率层序地层学特征.大庆石油地质与开发,26(1) :45-49． Li Junwen,Chen Hongde and Tian Jingchun.2007． High resolution sequence stratigraphy characteristics of Shiqianfeng Formation in Ordos Basin.Petroleum Geology & Oilfield Development in Daqing.26(1) :45-49．
魏魁生.1996． 非海相层序地层学.北京:地质出版社.84-85．
Wei Kuisheng.1996． Non Marine Sequence Stratigraphy.Beijing:Geological Publ.House.84-85．
叶德燎2005松辽盆地东南隆起区下白垩统层序地层格架及油气成藏规律.地质科学,40(2) :227-236． Ye Deliao.2005． Lower Cretaceous sequence stratigraphic framework and hydrocarbon accumulation in the Southeast Rise, Songliao Basin.Chinese Jour.Geol.,40 (2) :227-236．
邹才能,陶士振,谷志东.2006． 陆相坳陷盆地层序地层格架下岩性地层圈闭/油藏类型与分布规律--以松辽盆地白垩系泉头组-嫩江组为例.地质科学,41(4) :711-719． Zou Caineug,Tao Shizhen and Gu Zhidong.2006． Types and distributions of litho-stratigraphic traps/reservoirs in sequence stratigraphic framework in continenlal depressional basin:An example from the Cretaceous in The Songliao Basin.Chinese Jour.Geol.,41(4) :711-719．
Aitken J F and Howell J A.1996． High-resolution sequence stratigraphy:innovation,application and future prospects.in:Howell J A and Aitken J F.eds.High Resolution Sequence Stratigraphy,Innovations and Application.London:Geology Society Special publication.104:1-9．
Brett C E,Goodman W M and Loduca S T.1990． Sequence,cycles,and basin dynamics in the Silurian of the Appalachian Foreland Basin.Sedimentary Geology,69:191-224．
Carroll A R and Bohacs K M.1999． Stratigraphic classification of ancient lakes:balancing teclonic and climatic controls.Geology,27(2) :99-102．
Cross T A and Lessenger M A.1998． Sediment volume partitioning:Rationale for stratigraphic model evaluation and high-resolution stratigraphic correlation.in:Gradstein F M,Sandvik K O and Milton N J.eds.Sequence Stratigraphy:Concepts and Applications.NPF Special Publication.8:171-195．
Mitchum R M Jr and Van Wagoner J C.1991． High frequency sequence and their stacking patter:Sequence stratigraphic evidence of high frequency eustatic cycles.Sedimentary Geology,70:131-160．
Posamentier H W,Allen G P and Jamses D P.1992． High resolution sequence stratigraphy--the East Coulee Delta,Alberta.Journal of Sedimentary Petrology,62 (2) :310-317．
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