南海北部小型海陆过渡相断陷地震相分析及沉积充填演化史研究——以琼东南盆地崖南凹陷崖城组为例
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摘要
南海北部琼东南盆地众多凹陷存在有海陆过渡相沉积,选取浅水区井孔资料相对较多的小型断陷即崖南凹陷作为研究对象,在等时地层格架内,对该凹陷海陆过渡期崖城组地震相进行深入解剖;并综合利用经典沉积模式以及凹陷周缘浅水地区井孔资料来建立地震相与沉积相之间的关系,赋予地震相以地质意义,进而预测了凹陷无钻井资料地区各种沉积相的展布,再现了崖城组不同历史时期的沉积演化。同时,借鉴国内外断陷盆地经典模式,以崖南凹陷为原型建立了小型海陆过渡相断陷地震相模式和沉积充填模式,这对研究该凹陷与深水区类似凹陷具有重要意义,也为今后向深水勘探区纵深挺进提供了有力保障。
The Yanan Depression,a depression located in shallower water of the Qiongdongnan Basin,was selected as a case to study the seismic facies and the filling history of a depression contains transitional facies for relatively more logging data are available there.The seismic facies of the Yacheng Formation is carefully studied in an isochronous stratigraphic framework,and the relations between seismic facies and sedimentary facies were established upon the existing stratigraphic framework,classic depositional models and logging data in shallow water.The relations make it possible to predict the distribution of sedimentary facies in the areas without logging data.Referring to the classic model of a faulted basin and using Yanan Depression as the prototype,this paper established the seismic facies and depositional infilling model of a small faulted depression of transitional facies.The results are significant not only for this depression,but also for similar depressions in deep water.The model could be used as a powerful weapon for future exploration in deep water.
The Yanan Depression,a depression located in shallower water of the Qiongdongnan Basin,was selected as a case to study the seismic facies and the filling history of a depression contains transitional facies for relatively more logging data are available there.The seismic facies of the Yacheng Formation is carefully studied in an isochronous stratigraphic framework,and the relations between seismic facies and sedimentary facies were established upon the existing stratigraphic framework,classic depositional models and logging data in shallow water.The relations make it possible to predict the distribution of sedimentary facies in the areas without logging data.Referring to the classic model of a faulted basin and using Yanan Depression as the prototype,this paper established the seismic facies and depositional infilling model of a small faulted depression of transitional facies.The results are significant not only for this depression,but also for similar depressions in deep water.The model could be used as a powerful weapon for future exploration in deep water.
引文
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[14]Zeng H,Loucks R G,Brown L F,et al.Map-ping sedi-ment-dispersal patterns and associated systems tracts infourth-and fifth-order sequences using seismic sedi men-tology:example from Corpus Christi Bay,Texas[J].AAPG Bulletin,2007,91(7):981-1 003.
[15]Brown L F,Fisher WL.Seismic stratigraphic interpreta-tion and petroleum exploration[C].AAPG,ContinuingEducation Course Note Series,16,1980:18.
[16]Sheriff R E.Structural interpretation of seismic data[M]∥Education Course Note Series 23.Tulsa:AAPG,1982:73pp.
[17]徐怀大,王世凤,陈开远.地震地层学解释基础[M].武汉:中国地质大学出版社,1990.12-145.
[18]Vail P R.Seismic recognition of depositional facies onslopes and rises[J].AAPG Bulletin,1977,61(5):837.
[19]傅宁,于晓果.崖13-1气田油气混合特征研究[J].石油勘探与开发,2000,27(1):19-22.
[20]何家雄,陈伟煌,李明兴.莺—琼盆地天然气成因类型及气源剖析[J].中国海上油气(地质),2000,14(6):398-405.
[21]沈守文,彭大军,颜其彬,等.SB地区西山窑组上部地震相与沉积相分析[J].西南石油学院学报,1999,21(3):32-36.
[22]张建宁,于建国.地震属性应用中的不确定性分析[J].石油物探,2006,45(4):373-379.
[23]张万选,张厚福,曾洪流,等.陆相断陷盆地区域地震地层学研究[M].山东东营:石油大学出版社,1988:52-54.
[24]Sangree J B,Widmier J M,Recognition of continentalslope seismic faces,offshore Texas Louisiana[C]∥Bou-ma A H,Moore G T,Coleman J M.Beyond the ShelfBreak:AAPG Marine Geology Comm.Short Course.1976,2:10-54.
[2]张功成,米立军,吴时国,等.深水区—南海北部大陆边缘盆地油气勘探新领域[J].石油学报,2007,28(2):15-21.
[3]郭英海,李壮福,张德高,等.海南岛万宁小海的障壁海岸沉积[J].中国矿业大学学报,1999,28(5):461-464.
[4]赵霞飞,吕宗刚,张闻林,等.四川盆地安岳地区须家河组—近海潮汐沉积[J].天然气工业,2008,28(4):16-18.
[5]Terwindt J H.Paleo-tidal reconstructions of inshore tidaldepositional environments[M]∥Boer D E.Tide-influ-enced sedi mentary environments and facies.London,Eng-land:D.Reidel Publishing Company,1988:233-263.
[6]Rahmani R A.Estuarine tidal channel and nearshore sedi-mentation of late Cretaceous epicontinental sea,Drum-heller,Alberta,Canada[M]∥Boer D E.Tide-influencedsedi mentary environments and facies.London,England:D.Reidel Publishing Company,1988:433-471.
[7]邓宏文,郑文波.珠江口盆地惠州凹陷古近系珠海组近海潮汐沉积特征[J].现代地质,2009,23(5):767-776.
[8]朱筱敏,王贵文,谢庆宾.塔里木盆地东河塘石炭系障壁岛后冲溢扇研究[J].沉积学报,1997,15(1):43-47.
[9]Marmalyevskyy N,Roganov Y.Frequency depending AVOfor a gas-saturated periodical thin-layered stack[C].Ex-panded Abstracts of 76th Annual International SEG Meet-ing,2006:274-278.
[10]Gaiser J,Moldoveanu N.Multicomponent technology:the players,problems,applications,and trends[J].TheLeading Edge,2001,20(9):974-977.
[11]Anderson R N,Boulanger A,He W,et al.4-D seismic:The fourth di mension in reservoir management,Part 1:What is 4-D and how does it i mprove recovery efficiency[J].World Oil,1997,218(3):43-49.
[12]Zeng H,Ambrose W A,Villalta E.Seismic sedi mentolo-gy and regional depositional systemsinthe Miocene NorteArea,Lake Maracaibo,Venezuela[J].The LeadingEdge,2001,20:1 260-1 269.
[13]Zeng H,Hentz T F.High-frequency sequence stratigra-phy from seismic sedi mentology:Applied to Miocene,Vermilion Block 50,Tiger Shoal area,offshore Louisiana[J].AAPG Bulletin,2004,88(2):153-174.
[14]Zeng H,Loucks R G,Brown L F,et al.Map-ping sedi-ment-dispersal patterns and associated systems tracts infourth-and fifth-order sequences using seismic sedi men-tology:example from Corpus Christi Bay,Texas[J].AAPG Bulletin,2007,91(7):981-1 003.
[15]Brown L F,Fisher WL.Seismic stratigraphic interpreta-tion and petroleum exploration[C].AAPG,ContinuingEducation Course Note Series,16,1980:18.
[16]Sheriff R E.Structural interpretation of seismic data[M]∥Education Course Note Series 23.Tulsa:AAPG,1982:73pp.
[17]徐怀大,王世凤,陈开远.地震地层学解释基础[M].武汉:中国地质大学出版社,1990.12-145.
[18]Vail P R.Seismic recognition of depositional facies onslopes and rises[J].AAPG Bulletin,1977,61(5):837.
[19]傅宁,于晓果.崖13-1气田油气混合特征研究[J].石油勘探与开发,2000,27(1):19-22.
[20]何家雄,陈伟煌,李明兴.莺—琼盆地天然气成因类型及气源剖析[J].中国海上油气(地质),2000,14(6):398-405.
[21]沈守文,彭大军,颜其彬,等.SB地区西山窑组上部地震相与沉积相分析[J].西南石油学院学报,1999,21(3):32-36.
[22]张建宁,于建国.地震属性应用中的不确定性分析[J].石油物探,2006,45(4):373-379.
[23]张万选,张厚福,曾洪流,等.陆相断陷盆地区域地震地层学研究[M].山东东营:石油大学出版社,1988:52-54.
[24]Sangree J B,Widmier J M,Recognition of continentalslope seismic faces,offshore Texas Louisiana[C]∥Bou-ma A H,Moore G T,Coleman J M.Beyond the ShelfBreak:AAPG Marine Geology Comm.Short Course.1976,2:10-54.
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