復(fù)雜裂縫條件下的滲流機(jī)理研究_第1頁
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1、大慶石油學(xué)院碩士學(xué)位論文復(fù)雜裂縫條件下的滲流機(jī)理研究姓名：李文娟申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：油氣田開發(fā)工程指導(dǎo)教師：劉振宇20070223摘要StudiesofFlowMechanismforComplicatedFracturesIntheprocessoffracturingandstimulationinlowpermeablereservoirthefracturegeneratediscomplicatedandvariableH

2、owtoproperlydepicfibethefractureshapeandtosimulatetheproductionperformanceoffracturedwellisverysignificanttoguidethedevelopmentoflowpermeablereservoirInrecentyears，thereagotoomanystudiesoftheproductionperformanceoffractu

3、redwellHowevermostassumptionsarethatfracturestretcheslinearlywhichdcesn’treflecttherealsituationandcomplicatedfracturesimulalionsagen’tindepththeproperdes耐ptionoffracturemorei11conformitywiththereaiityisnotacquiredTheref

4、ore，itneedstomakeadeepstudyFiniteDifferenceMethodisthemainnumericalmethodofresearchingtheflowinreservoirsatthesametime，F(xiàn)initeElementMethodisavalidnumericalmethodandhaslotsofsuperioritythanFiniteDifferenceMethod，butitisno

5、tdeeplystudiedinsolvingreservoirproblemsBasingontheoryofFiniteelementmethodandthecharacteristicoflowpermeabilityreservoirs，theapplicationandtheoryofFiniteElementMethodinlowpcrmeabilltyreservoirarestudiedsystematicallyspe

6、ciallyproductionperformanceofcomplicated矗actlI∞wellaredeeplystudiedThesinglephaseflowFiniteelementseepageequationsareestablishedThesimulationoffractureusinganchormodelandtheoutputcomputationusingreactionalgorithmaredoneT

7、hoseequatiomarcdispersedinspacebyisoparameterelementmethodandintimebyusingbackwarddifferenceAnumericalsimulatorisestablishedbyFortran，theideasofhighpartmaketheofstructureprogramclearmaintaineasyalculationeffectiveTheline

8、arequationsagesolvedbyvariablebandGaussMethodwhichmakesfullUSeofthesymmetryandbandofstiffnessmatrixteducetheoccupationofcomputermemoriesStartedwiththebasicradialflowmodelitvalidatesthepracticabilityofsimulatorprovidesbas

9、isforcomplicatedfracturesimulationInthispaperitisdiscussedthattheeffectofmanyvariants011theproductionperformanceoffracturedwell。suchasfracturenumberlengthangle，shape，flowconductivityandSOonAssimUhatinglInearfractureitiss

10、tudiedthatthesemiIoagfracturemodeIbysimulatorandmakessignificantconclusionsOnthehasisofthestudiesmentionedaboveitmakesanexplomtoryresearchonfracturedwellwithcomplicatedCBlveandanomaiisticfracturedwell11他preliminarycomput

11、ingresultsshOWthatthecomputationisreasonableForcomplicatedfracturewithcomplicatedshapeitsimulatesundertheconditionofisotropichomogeneityandaeolotropismrespectivelyTheresultsanalyzedandcomparedagerationalTI∞seconclusionsa

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