斯伦贝谢petrel教程3.ppt

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1、Isochoreprocessing-ExtraStructuregrid-to-welltie421351.CalculateERRORpoints(seeQCStructuregrid-to-welltieslide)3.Makeacopyofthestructuregridandrenameit(Forexample:TIEDSTRU)2.BuildERRORgrid(seeBuildisochoreslides)-Builddefaultgrid-Tunealgorithms-Consider

2、postprocessclipandsmooth-RetietoERRORpointsifsmoothingwasdone4.SubtractERRORgridfromTIEDSTRUgrid5.Re-checkstructuresgrid-to-welltie.Surfaceoperations(2Dgrids)SurfaceoperationsLectureandexercisepurposePurpose:Learnhowtoperformoperationsonsurfacesandbetwe

3、ensurfaces.Youwilllearnto:ManipulateasurfaceusingSurfaceOperationsCalculateazimuthanddipvaluesfromasurfaceUsethesurfacecalculatorBuildrockgrossthicknessgridsCalculatevolumebetweensurfacesArealcalculationsInsidepolygonFordefinednodesinagridSurfaceoperati

4、onsSurfaceOperationsContainstoolsformanipulatingonexistingsurfacesRotateandsmoothExtrapolateExpandandshrinkFlipvaluesShiftvaluesMergesurfacesRemember:OnlyONEundo!CSurfaceoperations2DVolumeprocessing;GeneralprocedureGiventopandbasestructuregridsIncorpora

5、tefluidcontactsintotopand/orbasegridsBuildgrossrockthicknessgridDiscountgrossrockthicknessbyN:G,Phi,and(1-Sw)CalculatevolumeforpositivethicknessCalculateareaforpositivethicknessBDAEFVolumeprocessing(2DGrids)TopandbasestructuregridsShoulddefinethezoneofi

6、nterestShouldnotcontainmissingnodevaluesoverareaofinterestNovolumesformissingnodesFaultgapsshouldbefilledwithnodesShouldbetiedtothetoppicksAWellCBVolumeprocessing(2DGrids)IncorporateFluidContacts13-A3-B23-C1.Usegridorconstant2.Mergewithastructuregrid3.M

7、ergingprocessA.CopystructuretobemergedB.Renamecopiedgrid“BASEHYDROCARBON”or“TOPHYDROCARBON”C.Incorporatefluidcontact“SetZ=Awhere:”Z>A(base)orZ

8、dselectcalculator)3+-+-242.Typein:GROSSROCK=TOPHYDROCARBON-BASEHYDROCARBON3.ThiswillproduceanewGROSSROCKgrid4.Clipnegativestoasmallnegativenumber(reducestotalZ-range)Volumeprocessing(2DGrids)PetrophysicalparametersCommonpetrophy