多相流油井生产技术

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1、TransientWellFlowSimulationsBinHuMilanMay25th,2010TransientWellFlowSimulationsbhu@sptgroup.comContents•OLGA’scapabilitiesindynamicmultiphasewellflowmodeling•Whyistransientwellflowsimulationimportant?•Applicationexamples2OLGA’smodelingcapabilitiesAccuratelyrepresentingthewelltr

2、ajectoryVerticalSlantedHorizontalUndulating3OLGA’smodelingcapabilitiesAccuratelyrepresentingthewellcompletionsMulti-stringMulti-zoneMulti-lateralSmart4OLGA’smodelingcapabilitiesAccuratelymodelingtheperformancesoftheflowcontrolequipment/devices•Axialflowcontrol–Choke–Checkvalve

3、–ESPandPDP–Gravitationalseparator–ESD–SCSSV•Radialflowcontrol–Gas-liftvalves–ICVandICD–DIACS–Slidingsleeves–Slottedliner–Sandscreen•Controllers5OLGA’smodelingcapabilitiesInflowperformancerelationship•Linearandnon-linearmass-basedIPR•ConstantProductivityIndex•Vogelequation–Satu

4、ratedoilreservoir•NormalizedBackpressure–Saturatedreservoir(oil/gas)•SaturatedoilwellsBottomholeflowingpressure•Backpressureequation–GaswellsQ•Forcheimermodel–Lowpressuregaswells•SingleForcheimermodelPR–Highpressuregaswellsvariables•UsertabulatedIPRsPI•Quasi-dynamicinflowperfo

5、rmanceReservoir–PR,TR,PI,k-h,S,D,n-C,GOR,WC…etcareavailableastimeseriesforinputSTime6OLGA’smodelingcapabilitiesAccuratelycalculating…•Transientmultiphaseflowinbothtubingandannulus•Heattransferthroughtubing-casingannulustoandfromformation•Joule-Thomsoneffectofinflowfromreservoi

6、rtowellbore•Compositionaleffectandlocalconcentrationsoftrackedchemicals•Co-flowofreservoirfluidandcomplexnon-Newtonianfluide.g.thedrilling/completionmud•Transientdrillingandcoiledtubinghydraulicsusingthemovinggridscheme7OLGA’smodelingcapabilitiesWell/pipelineinteractionsandres

7、ervoir/wellboreinteractions•Capableofcombiningsurfacegatheringandtransportationnetworkwithwellsinonemodel•PossibletobeintegratedwithreservoirmodelthroughOLGALink(server)8TheOLGA-ROCXdevelopment•Near-wellbore•WellborereservoirmodeledinmodeledinOLGAROCXOilSaturation00.10.20.30.4

8、0.50.60.70.80.91XYZOLGA-ROCXintegrationRocx=plug-intoOLGAIm