Petrel下裂缝建模的操作流程

更多Petrel资料及实战操作视频，请访问博客：HYPERLINK"http://iwith.me"http://iwith.meFractureModelinginPetrelPetrelisdesignedtobeflexible,givingyouthepowertouseanyavailabledata.Typically,togenerateagoodDFN,theIntensityin3Disrepresentedbyapropertygeneratedfromone/severalfracturedrivers.ManyofthesedriverscaneasilybegeneratedinPetrel:Lithological/Faciesdrivers-CanbegeneratedusingFaciesmodeling/Geobodies/PropertyCalculatororGeometricalmodeling.Seismicdrivers-CanbegeneratedfromtheextensiveseismicattributelibrarypresentinPetrel,thenresampledinasapropertyinthe3Dgrid.Mechanicaldrivers-CanbedefinedbySegment/ZonepropertiesorDistancetoobjectsinGeometricalmodeling.InadditiontherearecurvaturegenerationpossibilitiesfromtheOperationstabofsurfaces,seeCurvatureoperations.CurseSandParenttopiCracturemodelingFractureModelingWorkflowBelowisacommonworkflowsequence,whichprovidesthenoviceuserwithaneasyguidethroughthestepsofgeneratingausefulfracturemodel.Fortheexperienceduser,thePetrelfractureworkflowisopen,providingversatilityforspecializedandcustomizedworkflows.Howtosetupastandardfracturemodelworkflow(example)Step1:Import,QCanddisplayfractureinterpretationfromwells;couldbedipandazimuthinterpretationfromImagelogdata.Ausefulimportformatis'Pointwelldata(ASCII)';whereeachattributedescribesafracturetypeandquality.Createtadpolestoshowdip/azimuthdata.UseStereonettovisualizethefracturedata.■15330303006027090120225210■165ISOStep2:DataAnalysisCreatenewpointattributesusingCalculatorforrotationofdiprelativetostratigraphicsurfaceAssignfracturesetsusingselectiontoolsinStereonetGenerateFractureIntensitylogs口KMH1ITST1Step3:AIodeliDgFracfareDetTirorkproperdesUpscaleIntensitylogsandmodelIntensitypropertiesperfracturesetCreatefracturedriverproperties;canbeusedassecondarypropertiesinco-krigingoftheIntensitymodelStochasticgenerationbysetsusingIntensitypropertyasinputDeterministicgenerationoffracturesusingfaultpatchesfromant-tracking,faultsurfaces,pointsorpolygonsGeneratefractureattributes(apertureandpermeability)1.Upscalefracturenetworkproperties(useStatisticalorFlowbasedmethod)2.TheupscalingshouldbedoneontoaSimulationgrid(withlesscellsthantheGeogrid)ThiswillcreatepropertyoutputswhichcanbeusedinaSimulationrun民Scaleupfracturenetworkproperties[XScRunGrid:Discretefracturenetwork:(3FracGrid(Depth)$InitialFracturenetwork(w/Sets]憑FractureporosityEditexistingpropertiesUpscaledproperty:CreatenewpropertiesFracturePropertyprefix:Upscaling0UpscaleporositvFractureporosityFracturesigma0UpscalesigmafactorFractureKi0Upscalepermeability@OdamethodFractureKjFlowbasedFractureKkBoundaryconditions:0FulltensorFracture_KijFractureKikFractureKjkApplyOKKCancelStep6:Simuladou1.SetupaSimulationrun.2.UseMatrixproperties(standardproperties)andfractureproperties(fromupscalingprocess)inDualporositysimulationConsistencybetweenmatrixandfracturecellsindualporosity/permeabilitymodelsECLIPSE&FrontSimrequirethatcorrespondingmatrixandfracturecellsindualporosityordualpermeabilitymodelsarebotheitheractiveorinactive.Whenyouupscalepropertiesfromadiscretefracturenetwork(DFN)somefracturecellsarelikelytohaveveryloworzeroporosity,resultingininactivefracturecells,evenifthecorrespondingmatrixcellsareactive.Thiswillresultinwarningorerrormessagesfromthesimulator.Toremedythis,youcanusethe3DpropertycalculatortocreateanACTNUMproperty,forexample:ACTNUM=IF(PorosityFracture<0.01ORPorosityMatrix<0.01,0,1)Youcanvarytheporositythresholdusedasrequired.Assignthispropertytothe“Boolean”propertytemplate,includeitontheGridtabofthe'Definesimulationcase'process,andassignittotheACTNUMkeyword.更多Petrel资料及实战操作视频，请访问博客：HYPERLINK"http://iwith.me"http://iwith.me