金属矿地震勘探技术方法研究综述——散射波地震勘探方法
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摘要
介绍了地震波散射的概念、散射波特征、散射波与反射波的区别等散射波地震方法的基础内容,分析了金属矿地震波场复杂的散射特征。对散射波地震方法研究和应用现状进行了评述,指出散射波资料采集和成像技术是目前散射波地震方法技术研究的主要内容,总结了散射波资料采集的要求和处理难点。特别强调了已有的较为成熟的反射波成像技术不能直接用于散射波地震资料处理,应开展有针对性的散射波成像技术研究。研究表明,基于等效偏移距的偏移方法(EOM)在速度分析和偏移成像方面具有独特的优势,为散射波成像方法研究提供了思路。
This paper reviewed the definitions of seismic wave scattering,and investigated the characteristics of scattered wave,its differences with reflected wave,and the complex scattering behaviors of metallic ore seismic wave field.Studies and applications of scattered wave method were summarized.Acquisition and imaging techniques are the key contents in research on scattered wave seismic.Requirements and difficulties in scattered wave data acquisition and processing were presented.The author pointed out that the mature reflection imaging techniques are not suitable for imaging scattered wave,and scattered wave imaging approaches are yet to be developed.Equivalent offset migration(EOM)method,which has particular advantages in velocity analysis and imaging,provides ideas for scattered wave imaging.
This paper reviewed the definitions of seismic wave scattering,and investigated the characteristics of scattered wave,its differences with reflected wave,and the complex scattering behaviors of metallic ore seismic wave field.Studies and applications of scattered wave method were summarized.Acquisition and imaging techniques are the key contents in research on scattered wave seismic.Requirements and difficulties in scattered wave data acquisition and processing were presented.The author pointed out that the mature reflection imaging techniques are not suitable for imaging scattered wave,and scattered wave imaging approaches are yet to be developed.Equivalent offset migration(EOM)method,which has particular advantages in velocity analysis and imaging,provides ideas for scattered wave imaging.
引文
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15Hobbs R W.3D modeling of seismic-wave propagation using complex elastic screens,with application to min-eral exploration[A].In:Eaton D W,Milkereit B,Salis-bury M H,eds.Hardrock Seismic Exploration[C].Tulsa:Society Exploration Geophysicists,2003.59～69
16Bohlen T,Muller C,Milkereit B.Elastic seismic-wave scattering from massive sulfide orebodies:On the role of composition and shape[A].In:Eaton D W,Milkere-it B,Salisbury M H,eds.Hardrock Seismic Explora-tion[C].Tulsa:Society Exploration Geophysicists,2003.70～89
17徐明才,高景华,柴铭涛等.金属矿地震勘查方法技术[J].有色金属矿产与勘查,1997,6(4):232～237
18徐明才,高景华,柴铭涛等.寻找隐伏金属矿的地震方法技术研究[J].物探与化探,2002,26(5):350～356
19徐明才,高景华,荣立新等.散射波地震方法在蔡家营多金属矿区的试验研究[J].物探与化探,2003,27(1):49～54
20徐明才,高景华,刘建勋.东秦岭地震剖面上莫霍面基本特征的研究[J].地质与勘探,2000,36(1):40～43
21Bancroft J C,Geiger H D.The Equivalent offset CRP gathers[J].Expanded Abstracts of64thAnnual Inter-national SEG Meeting,1994,672～675
22Bancroft J C,Geiger HD,Margrave G F.The equiva-lent offset method of prestack time migration[J].Geo-physics,1998,63(6):2042～2053
23王勇,朱亚平,杨慧珠.共散射点成像及其在低信噪比三维地震数据处理中的应用[J].石油地球物理勘探,2000,35(1):20～26
24王伟.基于等效偏移距方法叠前时间偏移的研究:[学位论文][D].北京:中国地质大学(北京),2005
2尹军杰,刘学伟,李文慧.地震波散射理论及其应用研究综述[J].地球物理学进展,2005,20(1):123～134
3尹军杰.地震散射波场特征的数值模拟研究:[学位论文][D].北京:中国地质大学(北京),2005
4刘光鼎,郝天姚.应用地球物理方法寻找隐伏矿床[J].地球物理学报,1995,38(6):850～854
5高景华.金属矿勘查中的地震理论模型研究[J].物探与化探,2002,26(5):350～356
6孙明,林君.金属矿地震散射波场的数值模拟研究[J].地质与勘探,2001,37(4):68～70
7Milkereit B,Eaton D,Berrer E.Towards3-Dseismic exploration technology for the crystalline crust[J].Expanded Abstracts of66thAnnual International SEG Meeting,1996,638～641
8尹军杰,刘学伟,黄雪继等.基于散射成像数值模拟的地震采集参数论证[J].石油物探,2005,44(1):58～64
9籍同冰,徐明才.俄罗斯金属矿地震勘探[J].物探化探译丛,1995,99(4):25～34
10王再锋,赵利华.俄罗斯应用散射地震波特征参数分析研究基岩结构及油气藏[J].勘探地球物理进展,2004,27(6):455～459
11勾丽敏,刘学伟,雷鹏等.金属矿地震勘探技术方法研究综述——金属矿地震勘探技术及其现状[J].勘探地球物理进展,2007,30(1):16～24
12Eaton D W.Weak elastic-wave scattering from mas-sive sulfide orebodies[J].Geophysics,1999,64(1):289～299
13Eaton D W,Clarke G.A Kirchhoff integral method to model3-D elastic-wave scattering[J].Expanded Ab-stracts of70thAnnual International SEG Meeting,2000,1～4
14Clarke G J,Eaton D W.Influence of morphology and surface roughness on the seismic response of massive sulfides,based on elastic-wave Kirchhoff modeling[A].In:Eaton D W,Milkereit B,Salisbury M H,eds.Hardrock Seismic Exploration[C].Tulsa:Society Ex-ploration Geophysicists,2003.45～58
15Hobbs R W.3D modeling of seismic-wave propagation using complex elastic screens,with application to min-eral exploration[A].In:Eaton D W,Milkereit B,Salis-bury M H,eds.Hardrock Seismic Exploration[C].Tulsa:Society Exploration Geophysicists,2003.59～69
16Bohlen T,Muller C,Milkereit B.Elastic seismic-wave scattering from massive sulfide orebodies:On the role of composition and shape[A].In:Eaton D W,Milkere-it B,Salisbury M H,eds.Hardrock Seismic Explora-tion[C].Tulsa:Society Exploration Geophysicists,2003.70～89
17徐明才,高景华,柴铭涛等.金属矿地震勘查方法技术[J].有色金属矿产与勘查,1997,6(4):232～237
18徐明才,高景华,柴铭涛等.寻找隐伏金属矿的地震方法技术研究[J].物探与化探,2002,26(5):350～356
19徐明才,高景华,荣立新等.散射波地震方法在蔡家营多金属矿区的试验研究[J].物探与化探,2003,27(1):49～54
20徐明才,高景华,刘建勋.东秦岭地震剖面上莫霍面基本特征的研究[J].地质与勘探,2000,36(1):40～43
21Bancroft J C,Geiger H D.The Equivalent offset CRP gathers[J].Expanded Abstracts of64thAnnual Inter-national SEG Meeting,1994,672～675
22Bancroft J C,Geiger HD,Margrave G F.The equiva-lent offset method of prestack time migration[J].Geo-physics,1998,63(6):2042～2053
23王勇,朱亚平,杨慧珠.共散射点成像及其在低信噪比三维地震数据处理中的应用[J].石油地球物理勘探,2000,35(1):20～26
24王伟.基于等效偏移距方法叠前时间偏移的研究:[学位论文][D].北京:中国地质大学(北京),2005
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