M4-1-3D-grid-Construction三维网格创建(Schlumberger-petre

Module43DGridConstructionPetrelWorkflowTools3DGridConstructionStructuralGriddingStratigraphicModelingPillarGriddingWellLogUpscaleFacies&PetrophysicalModelingMakecontacts&VolumeCalculationIntrotoPetrelInterfaceWorkflowEditorPropertyModelingMakeHorizonsZones&Layering3DGridConstruction:StructuralModelingStudio3DGridConstructionStructuralFrameworkFaultModelingIntroductionSurfacesandDataedit3DGridConstructionObjectivesUnderstandthemainmethodsusedtobuilda3Dgrid:MakesimplegridprocessStructuralmodelingStructuralframeworkStructuralgridding.3DGridConstruction:MethodsMakesimplegridCornerpointgriddingStructuralframeworkStructuralgriddingProcessesusedfor3DGridConstruction3DGridConstructionStructuralFrameworkCornerPointGriddingFaultFrameworkModelingFaultModelingStructuralGriddingPillarGriddingMakeHorizons/Zones/LayersFaultFrameworkModelingHorizonModelingMakeSimpleGridStructuralGriddingStructuralModelingMakeSimpleGridProcessSurfacesInputdataMakesimplegridMakeZonesLayeringGeneratesasimplifiedversionofa3Dgrid.Thesegridsareusedwhendoingsimulation,velocitymodeling,ormakinggridswithnofaults.Processesusedfor3DGridConstruction3DGridConstructionStructuralFrameworkCornerPointGriddingFaultFrameworkModelingFaultModelingStructuralGriddingPillarGriddingMakeHorizons/Zones/LayersFaultFrameworkModelingHorizonModelingMakeSimpleGridStructuralGriddingStructuralModelingCornerPointGridding:StructuralModelingMakeHorizonsMakeZonesLayeringPillarGriddingFaultModelingThisistheclassicalprocessformakingastructuralmodelinPetrel.Itissubdividedintothreeprocesses:FaultModeling,PillarGridding,andMakeHorizonsStructuralModeling:InputDataforFaultModelingProcessInterpretedSeismicFaultPolygonsDigitizeonFaultSurfacesDigitizeoncross-sectionsDigitizeonSurfacesFaultsticksStructuralModeling:FaultModelingProcess(1)1.DefineaFaultmodel.BeforeyoustartFaultmodeling,defineandnameamodelthatwillstorethefaultmodelandall3Dgridsrelatedtothatfaultmodel.2.ActivatethenewemptymodelandactivatetheFaultmodelingprocess.TheStructuralmodelingprocessesincludetheuseoftheFaultmodelingandthePillargriddingprocessestogethertocreateaskeletonframework.StructuralModeling:FaultModelingProcess(2)3.Right-clicktheinputdata(faultsticks)intheInputpaneandselectConverttofaultsinfaultmodel.4.Specifytobuildakeypillaronevery5thfaultstickandsetthemaxsearchdistancetothenearestneighborpillar.StructuralModeling:KeyPillarsTopshapepointMidshapepointBaseshapepointLinebetweenpillarsKeypillarThenewfaultsarestoredintheFaultsmodelfoldernamedaftertheirinput.Thefaultsconsistsofadjustablekeypillars.Manyshapepointsaredefinedbythegeometryselectedbeforeautomaticallyconvertingdatatofaultsinthefaultmodel(inthiscase,threepointlistricgeometry).VerticalListricLinearCurvedActivatetheFaultmodelingprocessandchoosethefaultgeometryfromthefunctionbar.StructuralModeling:AutomatedTrimmingofFaults2.ChooseAllorOnlyselectedpillars.CutandextendtothelimitsandclickOK.1.SelectProcessespaneFaultmodeling.OntheOperationstab,settheTopandBaselimits,givenby2Dgrids.TheKeypillarsgeneratedbyCornerpointgriddingmustrunthroughthecompletemodelarea.Cut/extendpillarsagainstasurfaceoragivenconstant.PillarsafterMakesimplegrid,vertical.PillarsafterCornerPointgridding,withprojectedpathofpillarsweretheydonotextendtothetop.StructuralModeling:AutomaticConnectionofFaultsRemovedistance:Removespillarslessthanthegivendistancefromtheconnection.Extenddistance:Searchesforpillarswithinthegivendistanceandconnectthem.Automaticfaultconnection:Faultsclosetoeachother,notcuttingthrough,andfaultsoverlappingeachothermustbeconnectedtobuildaproperlatticeforthePillargriddingprocess.Normallyusedwithcleanorthogonalfaultdata.Alsousedtofindproblemswithfaultintersections.Afterthosehavebeenlocatedandedited,autoconnectioncanberunagain.EXERCISE