聚合物驱油藏井网优化与层系调整研究

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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