各向異性介質(zhì)轉(zhuǎn)換波速度分析方法研究及應(yīng)用.pdf

1、中國石油大學(xué)碩士研究生學(xué)位論文華東(申請工學(xué)碩士學(xué)位)各向異性介質(zhì)轉(zhuǎn)換波速度分析方法研究及應(yīng)用學(xué)科專業(yè)：培養(yǎng)方向：碩士生：指導(dǎo)教師：地球探測與信息技術(shù)地球物理探測方法與技術(shù)韓世春杜啟振(教授)論文完成日期：2007年4月ConvertedwaveVelocityAnaly7sisinAnisotropicMedia：MethodandAppficationsHANShi。chun(GeophysicalProspectingandInf

2、ormationTec|11lolog)r)Di佗曲edbyProfessorDUQi—zhenAbstractVelocityanalysisplaysfluimportantroleintheprocessofseismicdataBccallseofthewidespreadexistenceofanisolropyandtheasymmetryofconvertedwaveraypath，mostofthetravelingti

3、mecm、，csofseismicwavesstillpresentascomplicatednonhyperboliccurvesSothevelocityanalysismethodsbasedonhyperbolictravelingtimecurves，assumedbyisotropy，alen’tsuitfortheconverted—wavevelocityanalysisinanisotropicmediaanymore

4、So，thetheoryofconvertedwavevelocityanalysisinanisotropicmediarequiresbeingstudiedfBrtherThispaperanalysestheinfluencethattheanisotropiceffectmakestothevelocityanalysisandtherelationshipamonganisotropicparameters，velocity

5、travelingtimecurves，andapplicationconditionsofanisotropicparameters，andcitesthehighorderTaylorseriesexpansionformulaandthedoublesquareroot(DSR)equationsuitableWhat’smore，accordingtofractionexpansionequationthenanisotropi

6、cparametersintroducedbyLi黜substitutedintotheequation，andderivesafractionexpansiontwo—ordertimedistanceequationsuitabletoanyanisotropicforceOnthebasisofappearedTanerspectra，thispaperintroducesthemodifiedvelocityanalysisru