熱虹吸管在采油中的應(yīng)用研究.pdf

1、中國(guó)石油大學(xué)（華東）碩士學(xué)位論文熱虹吸管在采油中的應(yīng)用研究姓名：王永勝申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：化工過(guò)程機(jī)械指導(dǎo)教師：仇性啟20090501AppliedResearchoftheThermosiphoninProductionWangYongSheng(ChemicaIMechanics)DirectedbyProfQiu)(ing—qiAbstractHeatpipeisahighheattransferunitwithhighthe

2、rmalconductivityandgoodhomoisothermalqualityithasbeenwideusedinheattransferandenergysavingIntheexploitationofcrudepetroleumandhighviscosityoil，raisingthetemperatureoftheoiltodecreaseitsviscosityisveryimportantlyinlifting

3、processBymeansofanalyzingtheheattransfercharacterofthermosiphon，relationshipbetweentemperatureandviscosityaffectionofwellborehomoisothermalqualityt0itsthermalloss，weplantesearchtheusingofthermosiphoninoilliftingprocessBy

4、infinitesimalmethod，cycliciterativemethod，andVisualBasicprogram，wefindoutthedistributionofthecrudepetroleumstemperaturewhenthermosiphonisusedinwellbore。Theanalyseistestedtoberightinexperiment，thenweconsidertheactualcondi

5、tionsandprogrammingit，wecangetconclusionsasbelow：thesmallertheinfmitesimalis，theclosertothetruevalue；thecoefficientofheattransferbetweencrudepetroleumandlayerisrelatedtothethermallossofwellbore，thebiggerthecoefficientis，

6、themorethethermallossis；whenthecoefficientofheattransferbetweencrudepetroleumandthermosiphonisnotverybig，enhancethecoefficientcanbeobviousinimprovingthedistributeofthecrudepetroleum’Stemperature，butifthecoefficientreacha

7、quitehighvalue，theaffectisnotveryobvious；thethermosiphonmayreachtheentrainmentultimatewhenitistoolongandthedensityofheatflowrateinradialdirectionissmall。Keyword：thermosiphon；viscositybreakofhighviscosityoil；coefficientof