Walkaway VSP试射法正演方法研究
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摘要
介绍了Walkaway VSP观测系统及Walkaway VSP地震波类型。结合模型的理论基础,以及射线理论,阐述了任意倾角多界面情况下,Walkaway VSP射线追踪模型的制作方法,论述了试射法原理。结合Walkaway VSP模型,使用Fortran语言编写程序,实现了Walkaway VSP试射法正演模拟。利用Fortran编写的程序试算了3个模型,成功得到了任意倾角多界面情况下其射线追踪结果图和合成地震记录图,验证了程序算法的正确性和有效性。
As a more convenient way of observing,the forward modeling method of Walkaway VSP trial ray method has been widely applied in oilfield exploitation.This article firstly introduces the observing system and seismic wave type of Walkaway VSP.Combined with the model's theoretical basis and the ray theory,the article expounds the method of making the Walkaway VSP ray tracing model under any arbitrary angle and multi-interface.In the part of the theory,the article discusses the principle of the trial ray method.Combined with the Walkaway VSP model,the article uses the Fortran language to write the programs,which achieves the forward modeling of Walkaway VSP trial ray method.In this Article,three models have been trialed by the program written in Fortran language and the test has successfully got the results map of ray tracing and synthetic seismograms under any arbitrary angle and multi-interface,which verify the correctness and effectiveness of the program algorithm.
As a more convenient way of observing,the forward modeling method of Walkaway VSP trial ray method has been widely applied in oilfield exploitation.This article firstly introduces the observing system and seismic wave type of Walkaway VSP.Combined with the model's theoretical basis and the ray theory,the article expounds the method of making the Walkaway VSP ray tracing model under any arbitrary angle and multi-interface.In the part of the theory,the article discusses the principle of the trial ray method.Combined with the Walkaway VSP model,the article uses the Fortran language to write the programs,which achieves the forward modeling of Walkaway VSP trial ray method.In this Article,three models have been trialed by the program written in Fortran language and the test has successfully got the results map of ray tracing and synthetic seismograms under any arbitrary angle and multi-interface,which verify the correctness and effectiveness of the program algorithm.
引文
[1]郭建.VSP技术应用现状及发展趋势[J].勘探地球物理进展,2004,27(1):1~8.
[2]胡建平.变偏移距VSP射线追踪模型[N].西安工程学院学报,1998-9-20(20).
[3]王玉贵.WalkawayVSP技术在大庆油田的应用研究[D].北京:中国地质大学,2009.
[4]王成礼,焦湘恒.变偏移距VSP方法与效果-N35井实例的研究压[J].石油物探,1992,31(4):11~22.
[5]王德志,刘天佑,肖都建.三维井地联合Walkaway VSP技术及其在泌阳凹陷的应用[J].地质科技情报,2007(2).
[6]岳洪波,吴守华.VSP渐近射线二维追踪模型[J].能源技术管理,2006(2):54~57.
[7]陈信平.论非零偏移距VSP观测系统设计[J].石油地球物理勘探,24(1).
[8]朱光明.VSP法从苏联到欧美的发展[J].长安大学学报,1983,(2).
[9]高建华.MB2003井区3D一VSP技术攻关试验及效果[J].石油地球物理勘探,2002,37:67~78.
[10]严又生,许增魁,宜明理,等.非零井源距VSP资料在煤层气勘探中的应用研究[J].煤田地质与勘探,2002,30(2):54~57.
[11]何惺华.变检波点距VSP资料的抽道分组波场分离方法[J],石油地球物理勘探,1994,29(1):59~69.
[12]Brian E Hornby,Yu Jiahua.VSP:beyond time-to-depth[J].The Leading Edge,2006(11).
[13]John Brien,Ron Harris.Mult-i component VSP imagingof tight-gas sands[J].Geophysics,2006,71(6).
[2]胡建平.变偏移距VSP射线追踪模型[N].西安工程学院学报,1998-9-20(20).
[3]王玉贵.WalkawayVSP技术在大庆油田的应用研究[D].北京:中国地质大学,2009.
[4]王成礼,焦湘恒.变偏移距VSP方法与效果-N35井实例的研究压[J].石油物探,1992,31(4):11~22.
[5]王德志,刘天佑,肖都建.三维井地联合Walkaway VSP技术及其在泌阳凹陷的应用[J].地质科技情报,2007(2).
[6]岳洪波,吴守华.VSP渐近射线二维追踪模型[J].能源技术管理,2006(2):54~57.
[7]陈信平.论非零偏移距VSP观测系统设计[J].石油地球物理勘探,24(1).
[8]朱光明.VSP法从苏联到欧美的发展[J].长安大学学报,1983,(2).
[9]高建华.MB2003井区3D一VSP技术攻关试验及效果[J].石油地球物理勘探,2002,37:67~78.
[10]严又生,许增魁,宜明理,等.非零井源距VSP资料在煤层气勘探中的应用研究[J].煤田地质与勘探,2002,30(2):54~57.
[11]何惺华.变检波点距VSP资料的抽道分组波场分离方法[J],石油地球物理勘探,1994,29(1):59~69.
[12]Brian E Hornby,Yu Jiahua.VSP:beyond time-to-depth[J].The Leading Edge,2006(11).
[13]John Brien,Ron Harris.Mult-i component VSP imagingof tight-gas sands[J].Geophysics,2006,71(6).