饶阳凹陷古近系沙河街组层序地层分析及沉积体系研究
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摘要
利用地震、测井、岩心等资料,对该区进行层序地层学的分析和研究,在层序地层单元划分和对比的基础上,将饶阳凹陷古近系沙河街组划分出6个三级层序,并对每个层序的主控成因进行了详细的研究,总结出各层序的不同特点。同时对每个层序内部的沉积特点和沉积体系进行了分析,指出了层序发育对沉积体系的控制作用。研究过程中,还对层序不同体系域的油气藏类型和油气聚集规律进行了研究,并指出了各体系域可能发育的最有利的油气藏类型。
The sequence stratigraphy and sedimentary system of the Paleogene Shahejie Formation of the Raoyang subbasin have been studied by employing seismic, well log and drilling core data. On the basis of the identification and correlation of sequence stratigraphic units, the Shahejie Formation has been divided into six third-order sequences and 14 system tracts. The paper analyzes the main cause of formation of each sequence in detail and sums up different characteristics of various sequences. In addition, the sedimentary characteristics and sedimentary systems in each sequence are analyzed and the controlling effects of sequence development on the sedimentary systems are pointed out. During the study, the authors also studied the types of oil-gas reservoirs and characteristics of oil-gas accumulation in different system tracts of a sequence, and on that basis, they indicate the most favorable oil-gas reservoir types possibly developed in various system tracts.
The sequence stratigraphy and sedimentary system of the Paleogene Shahejie Formation of the Raoyang subbasin have been studied by employing seismic, well log and drilling core data. On the basis of the identification and correlation of sequence stratigraphic units, the Shahejie Formation has been divided into six third-order sequences and 14 system tracts. The paper analyzes the main cause of formation of each sequence in detail and sums up different characteristics of various sequences. In addition, the sedimentary characteristics and sedimentary systems in each sequence are analyzed and the controlling effects of sequence development on the sedimentary systems are pointed out. During the study, the authors also studied the types of oil-gas reservoirs and characteristics of oil-gas accumulation in different system tracts of a sequence, and on that basis, they indicate the most favorable oil-gas reservoir types possibly developed in various system tracts.
引文
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[2]蔡希源,李思田,陈开元,等.陆相盆地高精度层序地层学:隐蔽油气藏勘探基础、方法与实践.基础理论篇[M].北京:地质出版社,2003.45～87.Cai Xiyuan,Li Sitian,Chen Kaiyuan,et al.The Basic Principles,Volume,High-Resolution Sequence Stratigraphy of Continental Basins,Basic Ideas,Methology and Practice for Exploring for Subtle Oil Pools[M].Beijing:Geological Publishing House,2003.45～87(in Chinese with English abstract).
[3]纪友亮,张世奇.陆相断陷湖盆层序地层学[M].北京:石油工业出版社,1996.64～75.Ji Youliang,Zhang Shiqi.Sequence Stratigraphy of Lacustrine Basin in Continental Fault Depression[M].Beijing:Petroleum IndustryPress,1996.64～75(in Chinese with English abstract).
[4]操应长,姜在兴.陆相断陷湖盆层序地层单元的划分及界面识别标志[J].石油大学学报,1996,20(4):1～5.Cao Yingchang,Jiang Zaixing.Classification and indentification of sequence stratigraphic units in rift lake basin[J].Journal of the Uni-versity of Petroleum,China,1996,20(4):1～5(in Chinese with English abstract).
[5]屈红军,李文厚,苗建宇,等.东濮凹陷濮卫洼陷盐岩发育规律及成因探讨[J].中国地质,2003,30(3):309～314.Qu Hongjun,Li Wenhou,Miao Jianyu,et al.Development pattern of salt rock in the Puwei subdepression of the Dongpu depression and their genesis[J].Geology in China,2003,30(3):309～314(in Chinese with English abstract).
[6]杜金虎,邹伟宏,费宝生,等.冀中坳陷古潜山复式油气聚集区[M].北京:科学出版社,2002.181～184.Du Jinhu,Zou Weihong,Fei Baosheng,et al.The Multiple Hytro-carbon Accumulation Zone Oil Pool in Buried Hills of Jizhong De-pression[M].Beijing:Science Press,2002.181～184(in Chinese with English abstract).
[7]许淑梅,翟世奎,李三忠,等.歧口凹陷滩海区古近系层序地层分析及沉积体系研究[J].沉积学报,2001,19(3):363～367.Xu Shumei,Zhai Shikui,Li Sanzhong,et al.Qikou Sag faulted de-pression sequence stratigraphy sedimentary system[J].Acta Sedi-mentologic Asinica,2001,19(3):363～367(in Chinese with English abstract).
[8]邓宏文.美国层序地层研究中的新学派——高分辨率层序地层学[J].石油与天然气地质,1995,16(2):89～97.Deng Hongwen.A new shool of thought in sequence stratigraphic studies in U.S.:High-resolution sequence stratigraphy[J].Oil&Gas Geology,1995,16(2):89～97(in Chinese with English abstract).
[9]张世奇,纪友亮.东营凹陷古近系湖相密集段特征[J].石油大学学报(自然科学版),1997,21(2):4～7.Zhang Shiqi,Ji Youliang.Characteristics of paleogene lacustrine of condensed intervals in Dongying sag[J].Journal of the University of Petroleum,China,1997,21(2):4～7(in Chinese with English abstract).
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