聚合物驱油藏井网优化与层系调整研究

聚合物驱油藏井网优化与层系调整研究

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时间:2018-10-14

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1、—————————————————————————————————————————一一ResearchonWellPatternOptimizationandLayerSeriesAdjustmentforPolymerFloodingReservoirPanGuangming(Oil&GasFieldDevelopmentEngineering)DirectedbyProf.HouJianAbstractPolymerfloodinghasgotlarge-scaleindustrialapplicationinChina,whichproducedgoodimplem

2、entationeffect.However,thereisstillalotofcrudeoilremainedinthereservoirafterpolymerflooding.Theremainingoilofreservoirsafterpolymerfloodingbecomesmoredispersed.Itisnecessarytocarryoutthestudyonwellpatternoptimization,strataseriessubdivisionandseparatedlayerinjectionforpolymerfloodingReser

3、voirofShenglioilfield.Anditisoneoftheeffectivewaystomeettheever-increasingdemandofnationaleconomyforlargeroilproduction.Baseontheregionalmodelofpolymerflooding,thispaperdiscussedtheinfluenceofwellpatterntype,wellspacingandperfectdegreeofwellpatternonrecoverypercentinpolymerfloodingreservo

4、irandpolymer-surfactantfloodingreservoirafterpolymerflooding.Baseontherecognitionoftheplane,interbedandtappingremainingoildistributionofpolymerfloodingreservoirs,weanalyzedtheeffectofwellpatternconsummationondevelopmenteffectandtheoverallinfillfeasibilityofwellarrayofpolymerfloodingreserv

5、oir.Thispaperestablishedthetechniqueandeconomiclimitsofreservoirparametersincludingsubdivisionnumberofstrataseries,reservesabundanceofremainingoil,andeffectivethicknessofthelayersafterpolymerfloodingaswellasafterbinarycompoundfloodingfollowingpolymerflooding.Accordingtoeconomicfactors,thi

6、sresearchworkanalyzedthefeasibilityofchemicalagentseparatemjectionforbinarycompoundfloodingafterpolymerflooding.ItalsoproposedamethodtofRrtherimprovethereservoirrecoveryforpolymerfloodingbycombiningtheadjustmentofstrataseriesandwellpatternandtheseparateinjectionofchemicalagent.Onthebasiso

7、fpresentstrataseriesandwellpatternintheeightregionofGudongoilfield,thisPaperdesigned4differentschemesforoptimizingthestrataseriesandwellpattern,whichincludedvacuatingoptimizationschemeofpresentwellpattern,separateinjectionschemeaftervacuatingoptimizationofpresentwel

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