洼38塊轉(zhuǎn)換開發(fā)方式三維比例模擬技術(shù)研究.pdf

1、大慶石油學院碩士學位論文洼38塊轉(zhuǎn)換開發(fā)方式三維比例模擬技術(shù)研究姓名：田利申請學位級別：碩士專業(yè)：油氣田開發(fā)工程指導教師：吳景春20060315ABSTRACTTheInvestigationofTransformingDevelopmentRegimeforWa一38BlockbyThreeDimensionalPhysicallyScaledSimulationABSTRACTSteam塒ectionphysicallyscaled

2、modelisalleffectivewaytoinvestigatethermalrecoveryperformanceonheavyoilreservoirsScaledcriteriaforsteamfloodingsealedmodelscanbedefivedbyinspeetionalanalysisordimensionalanalysisRecentyears，horizontalwellsaregainingincre

3、asedprominenceinthermalrecoverytechnologies，whereverthetheoriesandmethodsderivedfromthesituationsoftheconventionalverticalwellshavebeenusedindomesticphysicalsimulationexperiments。Duetotheneglectofthecomplexityoffluidflow

4、iasideahorizontalwellaswellastheinteractionbetweentheflowiaside，andinthevicinityofahorizontalwell，theexperimentalresultsoftenshowtoomuchmoreoptimisticthanthepracticalsituations’Thusonecompletesetofscalingcriteriaforsteam

5、injectionexperimentsthroughhighpressurescaledmodel，includinghorizontalwell，isgivenbyusinginspectionalanalysisinthispaperInaddition，boththemechanismforandoilproductiontheoryofthesteam，assistedgrayitydrainageprocess(SAGD)a

6、leinvestigated，thenthetypicaldimeusionlesssimilaritygroupforSAGDphysicalsimulationisintroducedFortheneedofinvestigationalargescalemultifunctionalhightemperatureandhigh—pressurethreedimensionalscaledphy’sicatsimulationgys

7、tem，hasbeendevisedandmanufactured，whichmainlyconsistedofwellpatternmodel，overlaypressuresysteminjectionequipment，productionfacilities，anddataacquisitionandprocessingsystem，ThecriticalindeXeSandparametersdesignedforeachfu

8、nctionalsystemhavebeengiveninthistextnemodelwasusedtocarryoutphysicallysimulatedexperimentssuchaseonventionalsteamcirculation，combinedsteamcirculation，steamfloodingandSAGDtransformedfromconventionalsteamcirculation，allon

9、thebasisofWa38blockinLiaoHeoilfieldExperimentalresultsshowonthecurrentconditionofthereservoir，theconventiorlalsteamcirculationcanstillremainforthenexttwoperiods，withtotaloilrecoverynearly207％andperiodicoil—tosteamratiosf

10、romandafterthethirdperiodmaybeobviouslylowerthantheeconomicallimitvalueBoththecombinedpatternsof“injectingandproducingsimultaneously”and“oneinjectingandothersproducing”comparedwimtheeffectsofconventionalsteamcirculation，

11、canimprovetheternperaturedistributionanderdargetheamountsofoilpossiblyforeedtomoveandproducedbetweenwellswithtotaoilrecoveryforthefourperiodsupto68l％and787％respectivelyInthecaseoftheinstantaneousoilto—steamratiossatisfie

12、dwiththereasonableeconomicallimitstheoilrecoveryofthesteamfloodingandSAGDtransformedfromtheconventionalsteamcirculationmayadduDto31_6％and464％respectivelyKeywords：reservoirphysicalsimulation；scaledmodel；scalingcriteria；SA