利用正演模拟识别各类地震假象
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摘要
针对各类地震假象给地震解释人员带来的困扰,本文探讨了正演模拟方法研究假象问题优越性,并从理论方面简单介绍了不同正演模拟方法的优缺点。一般情况下,复杂的地质构造(包括起伏地层类、断层类、低速和高速充填体类、火山岩刺穿类及生物礁类的地质模型)往往在地震剖面上形成假构造,或出现偏离真实构造位置的情况,本文选取波动方程地震正演模拟方法模拟分析了起伏地层类和断层类地震假象的产生,指出了正确的解释方法和依据,对提高复杂研究区地震资料岩性解释的可靠性具有重大意义。
This paper discusses the superiority of using forward modeling method to study the seismic illusion,and introduces the advantages and disadvantages of different modeling methods based on the theory.The results show that the complex geological structure including the geological model of fluctuate strata,fracture structure,filling body structure,piercing structure,and reef structure may cause structure illusion.Therefore,this paper selects wave equation seismic forward modeling method to study the cause of undulating strata and fracture structure illusion,and points out the correct interpretation method,which will be important to improve the reliability of lithological interpretation in complex research areas.
This paper discusses the superiority of using forward modeling method to study the seismic illusion,and introduces the advantages and disadvantages of different modeling methods based on the theory.The results show that the complex geological structure including the geological model of fluctuate strata,fracture structure,filling body structure,piercing structure,and reef structure may cause structure illusion.Therefore,this paper selects wave equation seismic forward modeling method to study the cause of undulating strata and fracture structure illusion,and points out the correct interpretation method,which will be important to improve the reliability of lithological interpretation in complex research areas.
引文
[1]张永刚.地震波场数值模拟方法[J].石油物探,2003,42(2):3～5.
[2]Charis H Chapman.Fundamentals of Seismic WavePropagation[M].UK:Cambridge Univ Press,2004.1～6.
[3]肖开宇,胡祥云.正演模拟技术在地震解释中的应用[J].工程地球物理学报,2009,6(4):2～6.
[4]蒋先艺,刘贤功,宋葵.复杂构造模型正演模拟[M].北京:石油工业出版社,2004.124～138.
[5]裴正林,牟永光.地震波传播数值模拟[J].地球物理学进展,2004,19(4):1～9.
[6]朱多林,白超英.基于波动方程理论的地震波场数值模拟方法综述[J].地球物理学进展,2011,26(5):2～6.
[7]许辉群,桂志先,佘晓宇.模型正演技术在SZ地区砂体识别中的应用[J].工程地球物理学报,2010,7(4):1～4.
[8]但志伟,李三福,刘杰明.模型正演技术在深水地震采集设计中的应用[J].工程地球物理学报,2011,8(4):1～3.
[2]Charis H Chapman.Fundamentals of Seismic WavePropagation[M].UK:Cambridge Univ Press,2004.1～6.
[3]肖开宇,胡祥云.正演模拟技术在地震解释中的应用[J].工程地球物理学报,2009,6(4):2～6.
[4]蒋先艺,刘贤功,宋葵.复杂构造模型正演模拟[M].北京:石油工业出版社,2004.124～138.
[5]裴正林,牟永光.地震波传播数值模拟[J].地球物理学进展,2004,19(4):1～9.
[6]朱多林,白超英.基于波动方程理论的地震波场数值模拟方法综述[J].地球物理学进展,2011,26(5):2～6.
[7]许辉群,桂志先,佘晓宇.模型正演技术在SZ地区砂体识别中的应用[J].工程地球物理学报,2010,7(4):1～4.
[8]但志伟,李三福,刘杰明.模型正演技术在深水地震采集设计中的应用[J].工程地球物理学报,2011,8(4):1～3.
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