Petrel官方地震解释培训M4-Well-Ties-Synth

SyntheticSeismogramObjectives,MakeWellSectionQualitycheckandeditlogsCreateanEstimatedlogImportCheckshotsCorrectsoniclogandestablishTime-DepthrelationMakeAcousticImpedancelogandReflectionCoefficientSeriesGenerateSyntheticandExtractedWaveletsProduceSyntheticSeismogramCompareseismogramwithrealwellseismicManualadjustmentandeventpickingDisplayofsynthetictracein3Dwindow,Makewellsection,SelectNewwellsectionwindowfromtheWindowmenu,ExpandtheWellsfolderandselecttheappropriatewells,1,2,ColorfilllogsbyusingtheCreate/editcurvefilltool,3,ExpandtheGlobalwelllogsfolderandselecttheavailablelogstouse,4,Processoverview,1.Selectwells,1,2.Soniccorrection,3.Time/Depthlookup,4.AIlogandRCseries,5.GenerateWavelet,6.SyntheticSeismogram,7.CorrelateSeismic,2,3,4,5,6,7,LoginputandQC,InputdatatoSynthetics;Logs:Sonics/ftDensitygr/cm3Checkshots(CS):CheckShotSurvey(or)VSPAdditionallogs(optional):GRAPICaliperHolediameterAnyother,1,2,BadlogsmustbeeditedEstimatelogsifmissingSplicelogintervalsManualediting,Logediting,FromGlobalwelllogsRightclickonDTandselectCalculator,1,2,GR,Sonic,5,MakeexpressionSonic_despiked=DTUsesonicastemplateSampleMDfromlogandselectDTasinputClickEnter,Logediting-Despike,1,2,3,4,5,ChangeAction#1toDespikeUsedefaultparametersRunandviewtheresultinwellsectionUndoandadjustparametersifnotsatisfied,FromGlobalwelllogsRightclickonSonic_despikedandselectLogeditor,LogestimationMakedensityfromsonic,1,2,3,4,5,ClickonUseexisting,selectGlobalWellLogfromthelistSetAction#1toDensityfromSonicSelectInputLogApplydefaultparameters,Rightclickonthewellwhereanestimatedlogshouldbegenerated,DoubleclickontheSyntheticsprocessunderStratigraphicmodeling,Processdiagram,2,Movethemouseovereachofthedifferenticonstoseehintsonhowtousethem,Selectwellstoworkwithandawellsectiontodisplayanyresultsin,3,SelectasinglewellortheWellsfoldertoworkwithfromthedropdownmenu,Wellselection,2,WorkingwithonewellonlydeactivatestheWellstabselection,ClickingNoneintheWellstab,activatestheseparatewellselectionlist,3,1,Loadcheckshots,1,2,3,4,MakesureFilesoftypeiscorrect,RightclickonWellsfolderanduseImport(onselection),Selectfile(s)toimport,AccessthefilesbyclickingOpen,Loadcheckshots,1,2,3,B,Rightclickoncheckshotstoopenthespreadsheet,Fitinputparameters(A)tofile(B),A,5,4,6,Connecttowelltrace,Correctdata(ifneeded),OK(onefile)orOKForAll(twoormorefilesifinsameformat),ChangedepthfromMDtoTVD.CompareTVDandTWTwithinputfile(s)andothertime/depthinformation,Soniccorrection,DotheSoniccorrectionbasedonoriginalsonicandcheckshots,CheckShotSurvey,SonicLog,T.D.R.,Usethegeneratedcorrectedsonicasinputintheprocess,1,2,Welltime/depthrelation,1,2,WellTDRisdefinedbygeneratingglobaltimelog(s),ClickonSharedcheckshots,selectanddropinasourcewellfromtheWellfilterofacheckshotsitem.Execute,3,5,4,OpenSettingsforGlobaltime.,Rearrangetheprioritylistusingtheblueup/downarrows.Mark(greentick)objectstoselectfrom,ClickonExecutetogeneratetheglobaltimelog,2,IntheSeismogramtab,clickonCreatesyntheticseismogram,AcousticimpedanceandReflectioncoefficientseries,6,SelectDensitytouse,ClickoncreatenewobjecticontogenerateanAcousticimpedancelog.Settingsopensforselection,Selectdensityandsoniclogonput,FromtheAcousticimpedancepulldownmenu,selectthenewlycreatedlog,ClickontheCreatenewobjecticonforReflectionCoefficients.SelectAIlogforinputandusethenewlogasinputforRC,1,2,3,5,4,SelectSynthetictypeofseismogram,Syntheticwavelet,2,Waveletshape,Phase,Amplitude,Ricker,Ormsby,Klauder,Butterworth,4,3,3,CreatenewobjectforWavelet.OpenSettingsforit,SelectwhichSyntheticwavelettouse,SetparametersdependentontheselectedSynthetic,1,Extractedwavelet,1,Waveletshape,Phase,Amplitude,3a,4,2,Bartlett,Papoulis,Hamming,Cosine,Hanning,4,Alternativetypeofseismogramisloadedfromfile,5,7,6,3b,SelectExtractedtypeofseismogram,a)SetNeighborhoodextentfor3Dseismicb)If2Dlinesareused,setnumberoftraces,FromInputpane,selectseismicdataandWell.Dropbothinothedialogboxusingthedropinarrows,SelectTaperwindowtype,ImportthefileintheInputpaneandopenitinthedialogbox,SetTimeunit,ClickontheSyntheticseismogrampulldownmenutoviewitscontent,Syntheticseismogram,2,1,Signal:S=R*Wavelet,*,=,ReflectioncoefficientsandwaveletisinputwhenApplyorOKisclicked,a)Selectwhichextractionmethodtouse,RadialorOrbital(3D)b)Setnumberoftracestousealongseismicline(2D),Wellseismicextraction,1,4,3a,3b,Fromtheinputpane,clickontheseismicdataobjectanddropitinusingthedropinarrow,IntheWellseismictab,checktheCreatewellseismicbox,Setappropiateparametersformethodchosen.,2,Aftergenerationofthesyntheticseismogram,openSettingsfromtheShyntheticsprocessdialogboxOpenSyntheticseismogramtabandsetNumberoftracesto3.SetPeakfrequencyActiontoSequenceandtypein202530.ApplyandviewtheresultinthewellsectionOpenthe2DStyletabandselectShowwiggles.Fillinthepreferredparameters,Syntheticseismogramsettings,1,3,2,FromtheInputpane,rightclickontheSyntheticsfolderandselectspreadsheetFilteronasinglewellandsettheDomaintoworkin(e.g.TWT)SpecifyStepandUselimitMin.andMax.tofilterthespreadsheet,Syntheticseismogramspreadsheet,1,3,2,Colorfillthespreadsheetforvisualaidtoidentifyfeaturesnoteasilyseen,4,UndertheSonicandtimetab,withOverideglobaltimelog(s)active,checktheManualadjustmentbox,Manualadjustment,1,3,2,4,OpentheWelltopsspreadsheet,UpdatedTWTPickedvaluescanbeentered.ClickApplyinthespreadsheettostorethemanuallyenteredvalues,ApplyingthemanualadjustmentintheSyntheticsprocesswillupdatetheTWTautovaluestofittheTWTpickedvalues,Manualadjustment,5,6,7,UndotheManualadjustment,Create/editwelltops,Showwelltoptime,Editwelltoptime,8,Toedi