中高滲砂巖油藏水驅(qū)油效率及波及規(guī)律研究.pdf

1、中國(guó)石油大學(xué)（華東）碩士學(xué)位論文中高滲砂巖油藏水驅(qū)油效率及波及規(guī)律研究姓名：李?yuàn)^申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：石油與天然氣工程指導(dǎo)教師：李?lèi)?ài)芬王建20090601StudyonWaterDisplacementEfficiencyandSweepEfficiencyforSandstoneReservoirwithMediumorHighPermeabilityLiFen(Oil&GasEngineering)DirectedbyProfLi

2、AifenandSeniorEngineerWangJianAbstractWaterfloodingisnotonlyadominantproducingmethodintheworldoilindustrybutalsothemosteconomicalandefficientmethodtoenhanceoilrecoverySOfarWaterfloodingsweepfactoranddisplacementefficienc

3、yareindispensableparametersandfinaldeterminativefactorsinfielddevelopmentprocess，Inrecentyears，sealedcoringwelldatahasdemonstratedthattherearegreatdifferencesbetweenverticaldisplacementefficiencyandsweepfactorinthereserv

4、oirBecausesuchdifferencescan’tbedescribedbycurrentmethodcomputingdisplacementefficiencyitisnecessarytomakeindepthstudyBymeansofstatisticalandanalysismethodforextensivetestdatacompaniedwithdemonstrationtesting，usinglabora

5、toryexperimentasmainstudymeans，thecorrelationsbetweendifferentsinglefactorincludingpermeability，viscosityratioofoilandwaterrocksurfaceproperties，porestructure，totalinjectionvolumeanddisplacementefficiencyweredevelopedres

6、pectivelybasedonexperimentdataConsideringcomprehensivelytheeffectofsinglefactortheforecastingmodelfordisplacementefficiencywasdevelopedUsinglargescalephysicalmodel，dynamicconformancefactorWasalsostudiedThestudyingresults

7、showthatthepositivecorrelationexistsbetweenpermeabilityorporosityanddisplacementefficiencyforvariedoil／waterviscosityratio，thedisplacementefficiencyofintermediatelywetcoFeis163％higherthanofwaterwetcoreandthedisplacemente

8、fficiencyofwaterwetcoreis247％higherthanofoilwetcore，thepositivecorrelationpresentsbetweenporecharacterparametersanddisplacementefficiencythepositivecorrelationexistsbetweentotalinjectionvolumeanddisplacementefficiencyort

9、otalinjectionvolumeforvariedoil／waterviscosityratioTrialcalculationofdevelopedmathematicalmodelfordisplacementefficiencyindicatesthattheerrorvaluebetweencalculatedresultandtestedresultsis18％to51％andtherelativeerroris2％to