26121.稀疏三維生產(chǎn)資料的預(yù)處理方法研究

1、西安石油大學(xué)碩士學(xué)位論文稀疏三維生產(chǎn)資料的預(yù)處理方法研究姓名：王建新申請學(xué)位級別：碩士專業(yè)：石油與天然氣工程指導(dǎo)教師：李輝峰李寶泉20111125壘豎塑墾!!!!Subject：Thepreprocessingresearchofseismicdatainsparse3DproductionSpeciality：PetroleumandNaturaIGasName：(signature)Instructor：(signature)Eng

2、ineeringABS’I’RA【jI。TheapplicationofSparse3DgeometryinJi—YuanareaistofindthemethodtoimprovetheseismicdataS／NratioandbroadenthefrequencyofeffectivereflectedwaveIntheprocessingofseismicdatainsparse3D，thecross—linedataandth

3、ein—linedataneedtobeseparatedandtheirCMPterritoriesaredifferentThespacingofcross—lineisVcrywideIfsomechannelsarediscardedinproductiontherecordercanuseun—stackingFDUmethoditmeansthatthereceivingchannelsaretherealchannelsi

4、nspread，everyshotdatachannelsaredifferentandeverysinglegeometryaredifferent，whichbringalotoftroubletodataprocessingHowtoquicklyandeffectivelyseparatethecrosslineandinlinedataandmakestaticscorrectionismysubjectOnsettingof

5、complexsurfacegeologicconditionandlaterallysharpvariationonlow—velocitylayersofvaryingheight，conventionalheightandresidualstaticcan‘treachsatisfactoryresultsRefractionstaticisintroducedtothispaperwhichmakesusesofthefirst

6、arrivalsofrefractiontoobtaindelaytimeandrefractionvelocityThusnearsurfacedepthmodelcanberestoredandtheinfluenceoflow—velocityzonesonreflectioncanbeeliminatedThepapersummedupsystematicallythemajortechniques，suchasthebuild

7、—upofinitialvelocitymodel，andinterpretationofthefinalnearsurfacemodeletc，andpresentedanewideaaboutinterpretationofmodelThecomparisonbetweenheightstaticandrefractionstaticshowsthatthismethodwassuccessfullyappliedinmanymou

8、ntain—frontseismicexplorationprojectsinrecentyears，andwellsolvedtheproblemoflong—wavelengthstaticcorrectionsexistedintheseareasandimprovedstackeffects，thestructuralaccuracyandimagingqualityofseismicdatainmountainareaaswe