25161.基于局部結(jié)構(gòu)的地震幾何屬性研究與應(yīng)用

1、西南交通大學(xué)碩士學(xué)位論文基于局部結(jié)構(gòu)的地震幾何屬性研究與應(yīng)用姓名：唐成勇申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：信號(hào)與信息處理指導(dǎo)教師：張家樹201206西南交通大學(xué)碩士研究生學(xué)位論文第1I頁AbstractInrecentyears，peopledemandmoreandmoreenergyespeciallypetroleumAccordingtotheexpelsestimatethatprovenoilresourceswillbefacing

2、depletioninthenext30to50yearsThus，oilandgasprospectingisaveryimportantgoalofpetroleumexplorationfieldTypicallyfaultsandfracturesCanbecomeacontainerofoilandgasresourcesTherefore，identifyingfaultsandfracturesisparticularly

3、importantforoilandgasexploration，andseismicgeometricattributesjustcanmeetthisrequirementThispaperaimsatimprovingtheresolutionof3Dseismicattributes，andhighlightingthefaultandfractureandothergeologicstructureThispapermainl

4、ystudiedanddiscussedonthestructuretensorofthreedimensionalsignalFirstlythispaperintroducestheconceptandclassificationoftheseismicgeometricattributes，anddetailsthelatestresearchprogressathomeandabroadSecondlywestudythedip

5、andazimuth，coherence，curvatureattributeandlateralchangesinamplitude，andmakeatheoreticalanalysistofixthewindowsizeofgeometricattributesextractionoftheseismicdataWeapplyittorealseismicdataandobtaingoodeffectsAgain，wemainly

6、studythecoherenceattributeoftheanisotropicgradientstructuretensorInordertoimprovethespatialresolutionofseismicattributes，inthispaperananisotropicgradientstructuretensorbasedonanisotropicwindowfunctionisproposedFinallyaim

7、ingattheproblemofthegradientstructuretensornotsensitivetoevensymmetries，anenergystructuretensorisintroducedThespatiallocalizationoftheenergystructuretensorismoreaccurate，andhighlightsthesubtlefracturesthatthegradientstru

8、cturetensorCannotdetectInordertoimprovetheresolutionofseismicattributes，weuseaGaussiansmoothingwindowfunctiontosmooththeResponseofthequadraturefilterMeanwhile，themultiscaleradialkemelfunctionsintheenergystructuretensorpr