三维三分量地震资料联合反演方法应用研究
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摘要
文中基于三维三分量地震资料联合反演的基本原理,通过测井资料分析、交会图分析、初始模型的建立,利用纵波、转换波联合反演得到了纵波阻抗、横波阻抗、纵横波速度比、泊松比、λρ、μρ等属性体(λ、μ为拉梅系数,ρ为密度)。其中纵横波速度比属性对于反映气层分布较为准确,并显示低异常;λρ属性对反映油层分布较为准确,并表现为低λρ值。实际资料处理结果表明,利用纵波、转换波联合反演得到的储层预测结果与井资料符合率达80%,因此这些属性可作为储层分布范围划分的重要依据。
In this paper,some attributes,including P-and S-wave impedances,P-and S-wave velocity ratio,Poisson's ratio,λρ and μρ,have been calculated using 3D3C seismic joint inversion with well logging data,cross-plot analysis and an initial model.The P-and S-wave velocity ratio is sensitive to gas reservoir distribution,and λρ is sensitive to oil reservoir distribution.Our application results show that reservoir prediction based on P and PS wave joint inversion has 80% coincidence with the drilled well data.So these attributes obtained by the joint inversion can be used in reservoir distribution prediction.
In this paper,some attributes,including P-and S-wave impedances,P-and S-wave velocity ratio,Poisson's ratio,λρ and μρ,have been calculated using 3D3C seismic joint inversion with well logging data,cross-plot analysis and an initial model.The P-and S-wave velocity ratio is sensitive to gas reservoir distribution,and λρ is sensitive to oil reservoir distribution.Our application results show that reservoir prediction based on P and PS wave joint inversion has 80% coincidence with the drilled well data.So these attributes obtained by the joint inversion can be used in reservoir distribution prediction.
引文
[1]董敏煜.多波多分量地震勘探.北京:石油工业出版社,2002
[2]徐丽萍,杨勤勇.多波多分量地震技术发展与展望.勘探地球物理进展,2002,25(3):47～52Xu Liping,Yang Qinyong.On the development andprospect of multiwave multicomponent seismology.Progress in Exploration Geophysics,2002,25(3):47～52
[3]王建民,付雷等.多分量地震勘探技术在大庆探区的应用.石油地球物理勘探,2006,41(4):426～430Wang Jianmin,Fu Lei et al.Application of multi-com-ponent seismic exploration in Daqing prospectingzone.OGP,2006,41(4):426～430
[4]王建民,付雷等.徐家围子断陷区二维三分量地震资料解释研究.石油物探,2008,47(1):61～66Wang Jianmin,Fu Lei et al.2-D three component seis-mic data interpretation in Xujiaweizi rift area.GPP,2008,47(1):61～66
[5]付雷,王建民,许红等.纵波和转换波联合反演技术在松辽盆地北部LMD地区的应用.石油物探,2009,48(6):563～567Fu Lei,Wang Jianmin,Xu Hong et al.Application ofP-wave and PS-wave jointed inversion in LMD area ofnorthern Songliao Basin.GPP,2009,48(6):563～567
[6]付雷,徐永梅,王璐等.多波层位标定技术在LMD油田的应用研究.石油地球物理勘探,2010,45(增1):110～113Fu Lei,Xu Yongmei,Wang Lu et al.Studies on theapplication of multi-wave horizon calibration tech-nique in LMD Oilfield.OGP,2010,45(Sup 1):110～113
[7]Stewart R R,Gaiser J E,Brown R J et al.Converted-wave seismic exploration:Methods.Geophysics,2002,67(5):1348～1363
[8]Smith G C,Gidlow P M.Weighted stacking for rockproperty estimation and detection of gas.GeophysicalProspecting,1987,35(9):993～1014
[9]Larsen J A,Margrave G F,Lu H X et al.Simultane-ous P-P and P-S inversion by weighted stacking ap-plied to the Blackfoot 3C-3Dsurvey.CREWES Re-search Report,1998,10(50):1～23
[10]于世焕,赵殿栋,李钰等.新场地区三维三分量地震勘探实践.石油物探,2010,49(4):390～400Yu Shihuan,Zhao Diandong,Li Yu et al.3C3Dseismicexploration in Xinchang area.GPP,2010,49(4):390～400
[11]Fatti J L,Vail P J,Smith G C et al.Detection of gas insandstone reservoirs using AVO analysis:A 3-D seis-mic case history using the geostack technique.Geo-physics,1994,59(9):1362～1376
[12]Aki K and Richards P G.Quantitative Seismology:Theory and Methods.W H Freeman and Co,1980
[2]徐丽萍,杨勤勇.多波多分量地震技术发展与展望.勘探地球物理进展,2002,25(3):47～52Xu Liping,Yang Qinyong.On the development andprospect of multiwave multicomponent seismology.Progress in Exploration Geophysics,2002,25(3):47～52
[3]王建民,付雷等.多分量地震勘探技术在大庆探区的应用.石油地球物理勘探,2006,41(4):426～430Wang Jianmin,Fu Lei et al.Application of multi-com-ponent seismic exploration in Daqing prospectingzone.OGP,2006,41(4):426～430
[4]王建民,付雷等.徐家围子断陷区二维三分量地震资料解释研究.石油物探,2008,47(1):61～66Wang Jianmin,Fu Lei et al.2-D three component seis-mic data interpretation in Xujiaweizi rift area.GPP,2008,47(1):61～66
[5]付雷,王建民,许红等.纵波和转换波联合反演技术在松辽盆地北部LMD地区的应用.石油物探,2009,48(6):563～567Fu Lei,Wang Jianmin,Xu Hong et al.Application ofP-wave and PS-wave jointed inversion in LMD area ofnorthern Songliao Basin.GPP,2009,48(6):563～567
[6]付雷,徐永梅,王璐等.多波层位标定技术在LMD油田的应用研究.石油地球物理勘探,2010,45(增1):110～113Fu Lei,Xu Yongmei,Wang Lu et al.Studies on theapplication of multi-wave horizon calibration tech-nique in LMD Oilfield.OGP,2010,45(Sup 1):110～113
[7]Stewart R R,Gaiser J E,Brown R J et al.Converted-wave seismic exploration:Methods.Geophysics,2002,67(5):1348～1363
[8]Smith G C,Gidlow P M.Weighted stacking for rockproperty estimation and detection of gas.GeophysicalProspecting,1987,35(9):993～1014
[9]Larsen J A,Margrave G F,Lu H X et al.Simultane-ous P-P and P-S inversion by weighted stacking ap-plied to the Blackfoot 3C-3Dsurvey.CREWES Re-search Report,1998,10(50):1～23
[10]于世焕,赵殿栋,李钰等.新场地区三维三分量地震勘探实践.石油物探,2010,49(4):390～400Yu Shihuan,Zhao Diandong,Li Yu et al.3C3Dseismicexploration in Xinchang area.GPP,2010,49(4):390～400
[11]Fatti J L,Vail P J,Smith G C et al.Detection of gas insandstone reservoirs using AVO analysis:A 3-D seis-mic case history using the geostack technique.Geo-physics,1994,59(9):1362～1376
[12]Aki K and Richards P G.Quantitative Seismology:Theory and Methods.W H Freeman and Co,1980
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