辽东湾蠕虫状地震反射的地质意义研究
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摘要
常规统计岩石物理学研究缺乏对地质成因的分析及对地震反射特征的物理机理分析,难以建立合理的岩石物理模板,指导地震属性的分析与解释。针对这些问题,基于地震岩石学研究与宏观沉积相相结合的原则,首先将辽东湾东营组蠕虫状反射按宏观沉积环境分为滑塌型、复合型和远岸型;然后结合沉积过程,将蠕虫状反射形态和沉积微相结合起来,分析蠕虫状反射形态与物源方向的关联性;最后总结出蠕虫状反射的地质意义及不同形态蠕虫状反射形成的物理机理。建立了富泥型和富砂型蠕虫状反射的识别模式,为蠕虫状反射的沉积研究、内幕刻画和储层预测打下了基础。
It is difficult to establish appropriate rock physics template to guide the analysis and interpretation of seismic attributes by conventional statistical petrophysics for the lack of analysis on geologic origin and physical mechanisms of seismic reflection.Aiming at the problems,we combine seismic petrology and macro sedimentary facies. Firstly,the vermicular reflection was divided into slumping type,compound type and far off-bank type according to the macro depositional environment.Then,based on the deposition process, the vermicular reflection shape was combined with its sedimentary micro-facies to analyze the association between the vermicular reflection shape and source direction.Finally,the geological significance of vermicular reflection and physical mechanism of different vermicular reflection were summarized,and the identification pattern of mud-enriched and sand-enriched vermicular reflection was established,which lays foundation for sedimentary research,inner depiction and reservoir prediction.
It is difficult to establish appropriate rock physics template to guide the analysis and interpretation of seismic attributes by conventional statistical petrophysics for the lack of analysis on geologic origin and physical mechanisms of seismic reflection.Aiming at the problems,we combine seismic petrology and macro sedimentary facies. Firstly,the vermicular reflection was divided into slumping type,compound type and far off-bank type according to the macro depositional environment.Then,based on the deposition process, the vermicular reflection shape was combined with its sedimentary micro-facies to analyze the association between the vermicular reflection shape and source direction.Finally,the geological significance of vermicular reflection and physical mechanism of different vermicular reflection were summarized,and the identification pattern of mud-enriched and sand-enriched vermicular reflection was established,which lays foundation for sedimentary research,inner depiction and reservoir prediction.
引文
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[2]邓洪文,王红亮,王居峰,等.层序地层构成与层序控砂、控藏的自相似特征——以三角洲-浊积扇体系为例[J].石油与天然气地质,2004,25(5):491-495
[3]董春梅,张宪国,林承焰,等.有关地震沉积学若干问题探讨[J].石油地球物理勘探,2006,41(4): 405-409
[4]林承焰,张宪国,董春梅.地震沉积学及其初步应用[J].石油学报,2007,28(2):69-73
[5]蒋韧,樊太亮,徐守礼.地震地貌学概念与分析技术[J].岩性油气藏,2008,20(1):33-38
[6]Avseth P,Mukerji T,Mavko G.定量地震解释[M].李来林,译.北京:石油工业出版社,2009:1-274
[7]Zeng H L,Hentz T F.High-frequency sequence stratigraphy from seismic sedimentology:applied to miocene,vermilion block 50,Tiger Shoal area,offshore louisiana[J].AAPG Bulletin,2004,88(2): 153-174
[8]Zeng H L,Henry S C,Riola J P.Stratal slicing,partⅡ:real 3-D seismic data[J].Geophysics,1998,63 (2):514-522
[9]Zeng H L,Kerans C.Seismic frequency control on carbonate seismic stratigraphy:a case study of the Kingdom Abo sequence,west Texas[J].AAPG Bulletin, 2003,87(2):273-293
[10]黄峰,李志荣,廖玲,等.利用地震资料进行沉积相分析[J].物探化探计算技术,2003,25(3):197 -200
[11]胡孝林,刘深艳,张金淼.VoxelGeo三维可视化技术在沉积学研究中的应用[J].石油物探,2002,41(增刊):261-264
[12]邓传伟,李莉华,金银姬,等.波形分类技术在储层沉积微相预测中的应用[J].石油物探,2008,47(3): 262-265
[13]张永华,杨道庆,孙耀华,等.高精度层序地层学在隐蔽油藏预测中的应用[J].石油物探,2007,46(4): 378-383
[14]陈守田,孟宪禄.薄互层储层预测方法[J].石油物探,2004,43(1):33-36
[15]朱剑兵,赵培坤.国外地震相划分技术研究新进展[J].勘探地球物理进展,2009,32(3):167-171
[16]王长江,刘书会,穆星.提高地震属性分析精度的方法及其应用[J].石油物探,2004,43(增刊):112-114
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