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1、分類號(hào)Category宓L上lNoTE319級(jí)SecurityLevel題目TITLEIIIIIIIIIIIIIIIIIIIIIY3426998學(xué)號(hào)StudentNo151160637Xi’anShiyouUniversity全日制學(xué)術(shù)型FULLTIMESTUDY碩士學(xué)位論文PoSTGRADUATETHESIS作者姓名AUTHoR’SNAME導(dǎo)師姓名、職稱SUPERVISOR’SNAME，TITLE學(xué)科(專業(yè))名稱MAJoR提交論文日期

2、DATEStudyonHuffandPuffProcessforEnhancedOilRecoveryusingC02，N2andH20STEPHENNUVAGAFORMASITProfessorMa，XianlinOilandGasFieldDevelopmentEngineering30May／2018ABSTRACTSubject：StudyonHuffandPuffProcessforEnhancedOilrecoveryUsi

3、ngC02，N2andH20ABSTRACTOverthelastcoupleofyearsthetrendsintheworldhydrocarbonreservesdiscoveryhavebeenindeclineSearchingfornewhydrocarbondepositshasshiftedtodifficultterrainsuchasdeepwater，environmentallysensitiveareas1ik

4、ethearctic，andrecentlytounconventionalresourceslikeshaleandtightsandoilandgaswhichrequirehigherinvestmentforfielddevelopmentInaddition，therecentdeclineinoilpricescoupledwiththeeverincreasingdemandforenergyaroundtheworldh

5、asbeenaconcernforbothgovernmentsandtheenergycompaniestosustaintheworld’SenergydemandsThemainobjectiveofthisthesisistoincreaseoilproductivityfromthosecomplexfaultedblackreservoirs，forwhichhuffand伽ffsimulationwillbeaviable

6、alternativetoprimaryproductionThesebegthequestionhowwecaneconomicallysustainhydrocarbonproductionfrommaKtrefields，especiallyforthosecomplexfaultedblockreservoirsTheareasofthesereservoirsareoftensmall，andinmostcasesarecom

7、pletedwithonlyasignalwellThesereservoirsareclosedbyfaultsandwithoutexternalenergysupplyThus，itleadstoaquickdeclineinreservoirpressureduringprimaryproduction，whichresultsinfastdeclinesofoilrateTosolvetheseproblems，thisthe

8、sisinvestigatesthehuffandpufftechnologytoenhanceoilrecoverybyinjectingwaterornitrogenorC02ReservoirsimulationisappliedtostudytheperformanceofthetechnologyandtheassociatedreservoirpressuredeclineinthecomplexreservoirThedi

9、fferentinjectionfluidsinhuffandpuffprocessarestudiedinthefaultedblockreservoirThesimulationmethodiSusedtoevaluatetheoilrecoveryusinggasandWaterastheinjectionfluidSensitivityanalysisiSconductedtorankthelmffandpuffparamete

10、rsthatcontributetooilrecoveryandthentheoptimizationiscarriedouttodeterminetheoptimuminjectingrateandtheoptimumsoakingperiodaswellasoptimumproductiontimeusingthevariousinjectionfluidsTheresultsofthesimulationshowthatthega

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