储层随机建模型.PPT

储层随机建模型,地球物理,石油地质,油藏工程,,,,,3D储层模型,,地质统计学分析,,建模的实质,根据样品信息，在未取样位置预测储层特性的表现。,困难的选择,,IsotropicVariogrampictureshowinglaghistogramyellowbars,datasemivariancereddots,modelvariogramredline,sillvaluebluedashedline.,ResGramInteractiveIsotropic/AnisotropicVariography,ControlPanelforResGram2.0.ControlofIsotropic/Anisotropicmodeling,NestedStructures,Specificationofvariogramtype,tooltiphelp,Save/RecallCapabilitiesalleasilycontrolledfromthispanel.,FigureshowsasnapshotofResGram2.0sanisotropicvariogrammodelingabilities.Redarrowsrepresentoneofeightspecifieddirections,EllipserepresentsEccentricityandAngleofrotationofmajorandminoraxes.,Figureshowsa3Dazimuthalhistogramplot.Tallerbarsrepresentmoredatapairsalongthatazimuth.Lagscanbechanged.,FigureshowsabilitytotakegraphicsandedittheminthePaletteEditorNoticethe“AddedText“label.,ResModReservoirCharacterizationTool,Faciesmodelingworkflowwherebythestochasticaccousticimpedancevolumebottomisrelatedtofacieswithproporationcurvesmiddletocreateafull3Dseismic-basedfaciesmodel.,WellandSurfaceControldatamodelusedasaframeworkforhigh-resolutionfaciesandpropertymodeling.,Porositymodelbottomcreatedbasedonstochasticseismicinversiontop-leftand3Dseismic-basedfaciesmodeltop-right.Porosity-Impedancerelationshipsbyfaciestypeareshowninthecrossplotsmiddle-leftandfacies-porosityrelationshipsareshowninthehistorgramsmiddle-right.,Porositymodelsshowingincreasedcontinuityfromusingtheporosity-impedancerelationship.,ResSeisDeterministicandStochasticSeismicInversion,,OriginalProcessedSeismicVolumetopandStochasticSeismicInversionbottom.TheStochasticInversionusesasitsconstraintstheoriginalseismicvolume,AIwelllogs,andthedeterministicinversion.Increasedverticalresolutionisobtainedfromthewelllogs.,ResSeisimageofsimultaneouswaveletestimation,depthtotimeconversionofwellslogsandqualitycontrolofseismicinterpretationshownhere.,