斯伦贝谢petrel教程3

Surfaceoperations(2Dgrids)SurfaceoperationsLectureandexercisepurposePurpose:Learnhowtoperformoperationsonsurfacesandbetweensurfaces.Youwilllearnto:ManipulateasurfaceusingSurfaceOperationsCalculateazimuthanddipvaluesfromasurfaceUsethesurfacecalculator–BuildrockgrossthicknessgridsCalculatevolumebetweensurfacesArealcalculations–Insidepolygon–FordefinednodesinagridSurfaceoperationsSurfaceOperationsContainstoolsformanipulatingonexistingsurfacesRotateandsmoothExtrapolateExpandandshrinkFlipvaluesShiftvaluesMergesurfacesRemember:OnlyONEundo!CSurfaceoperations2DVolumeprocessing;GeneralprocedureA.GiventopandbasestructuregridsB.Incorporatefluidcontactsintotopand/orbasegridsC.BuildgrossrockthicknessgridD.DiscountgrossrockthicknessbyN:G,Phi,and(1-Sw)E.CalculatevolumeforpositivethicknessF.CalculateareaforpositivethicknessBDAEFVolumeprocessing(2DGrids)TopandbasestructuregridsA.ShoulddefinethezoneofinterestB.ShouldnotcontainmissingnodevaluesoverareaofinterestNovolumesformissingnodesFaultgapsshouldbefilledwithnodesC.ShouldbetiedtothetoppicksAWellCBVolumeprocessing(2DGrids)IncorporateFluidContacts13-A3-B23-C1.Usegridorconstant2.Mergewithastructuregrid3.MergingprocessA.CopystructuretobemergedB.Renamecopiedgrid“BASEHYDROCARBON”or“TOPHYDROCARBON”C.Incorporatefluidcontact“SetZ=Awhere:”ZA(base)orZA(top)AVolumeprocessing(2DGrids)Buildgrossrockthicknessgrid1.OpentheSurfacecalculator(rightclickonasurfaceandselectcalculator)3+-+-242.Typein:GROSSROCK=TOPHYDROCARBON-BASEHYDROCARBON3.ThiswillproduceanewGROSSROCKgrid4.Clipnegativestoasmallnegativenumber(reducestotalZ-range)Volumeprocessing(2DGrids)PetrophysicalparametersCommonpetrophysicalparametersare:–Net-to-gross–Porosity–Watersaturation(usedas1-Sw)ParametersrepresentaveragevalueforzoneMaybeeitherconstantorgridZ-rangebetween0.0and1.0(ratio)–Ifpercentthendivideby100–Ifoutside0-1rangethenclipVolumeprocessing(2DGrids)BuildhydrocarbonporethicknessA.Grossthickness*Net-to-gross=netthicknessB.Netthickness*Porosity=porethicknessC.Porethickness*(1–Watersaturation)=hydrocarbonporethicknessNote:Foreachstep,copytheinputthicknessgrid,renameittotheoutputthickness,andthenperformthecalculation.NetAPoreBHydrocarbonCGrossVolumeprocessing(2DGrids)CalculatevolumesTherearethreemethodsforcalculatingvolumesBetweentwosurfacesBetweenasurfaceandaplaneVolume/areaversusdepthVolumeprocessing(2DGrids)Calculatevolumes-betweentwosurfacesA.Double-clickonthetophorizonB.GotoOperationstab,Calculationsfolder,andselectVolumebelowsurface(surface).C.SelectthebasesurfacefortheSurfaceaboveparameter.D.ExecuteandinspecttheresultinthePetrelMessagelogBetweentwosurfacesVolumeprocessing(2DGrids)CalculateVolumes-betweensurfaceandaplaneA.Double-clickonthetophorizonB.GotoOperationstab,Calculationsfolder,andselectVolumebelowsurface(constant)C.SpecifybaselevelD.ExecuteandinspecttheresultinthePetrelMessagelogBetweenasurfaceandaplaneVolumeprocessing(2DGrids)CalculateVolumes–Volume/areaversusdepthA.Double-clickonthetophorizonB.GotoOperationstab,Calculationsfolder,andselectVolume/areaversusdepthC.SpecifyminandmaxZvalues(thedepthintervaltocalculatevolumes)andtheincrementtoreporttheresultsD.ExecuteandinspecttheresultinthePetrelMessagelog.Theresultisalsogivenasvolume/areavsdepthfunctionsintheinputtab.Volume/areaversusdepthVolumeprocessing(2DGrids)CalculateareasTherearetwomethodsforcalculatingareasforanisochoregrid.ApproximateareaUn-blankedgridcellsPrecisearea(requiresclosedpolygons)InsideapolygonVolumeprocessing(2DGrids)Calculateareas–un-blankedgridcellsA.GotoCalculatortab.Blankthethicknessgridbelowaconstant(iflowestthickness=0.0thenuse.01or.1)B.GotoOperationsTab,Calculationsfolder,andselect2Dand3Dareaofsurface.C.(Multiplytheresultingunitssquarednumberbythedesiredconversionfactor).Un-blankedgridcellsAVolumeprocessing(2DGrids)Calculateareas–insideapolygonA.GotoOperationsTab-ConvertPoints/Polygons/Surfacesfolder,andselectCreateIntersectionwithplane.B.Displaythepolygonsina2Dor3DwindowMakesuretheycloseMakesuretheyencompassthecorrectareaC.IntheSelect/pickmode(arrow)touchapolygontoseeitsarea,orExecuteforAreaandLengthinCalculationsforthePolygon.InsideapolygonCVolumeprocessing(2DGrids)ChangingprojectunitsOftenPetrel’sdefaultunitsaremeterswhentheprojectunitsarefeet.Tochangeunits:A.ClickonprojectsintheMenubarandselectSettingsB.GototheUnitsTabandmakeappropriateadjustments.Volumeprocessing(2DGrids)ExercisesBuildahydrocarbonthicknessgridandcalculateareaandvolumeforthatgrid.IntersectionsLectureandexercisepurposePurpose:TounderstandhowtouseintersectionstoQC,displayandplotdataYouwilllearnto:CreateageneralintersectionManipulateintersectionsCreateapolygonintersectionCreateaWellintersectionAdjustthesettingsforintersectionsGeneralIntersectionandanIntersectionWindowIntersectionsIntroductionTherearethreemethodsforgeneratingcrosssections.Thechosenmethoddependsontheneedsoftheuser.ABCA.GeneralIntersection:CutsacrossentiremodelCanbemovedandrotatedCanbevisualizedintheIntersectionwindowB.PolygonIntersection:UserdefineslocationandshapeofintersectionC.WellPathIntersecti