新型驅油體系對中低滲透油層適應性研究

1、大慶石油學院碩士學位論文新型驅油體系對中低滲透油層適應性研究姓名：劉金山申請學位級別：碩士專業(yè)：油氣田開發(fā)工程指導教師：陳濤平20070224大慶石油學院碩士研究生學位論文Feasibilityresearchofnewoil—displacingsurfaetantsysteminmid—lowpermeabilityoillayersAbstraetNowadays，thewaterdriverecoveryefficiencyfa

2、ctorinlowpermeabilityreservoirsislowinordertosolvethispuzzle，thispaperdidsomeexperimentalresearches，whichusedtheultralowinteffacialtensionoildisplacingsystemformedbyBSl3betalnesurfactantsandlowmolecularweightpolymerThose

3、experimentalresearchesofphysicalsimulateoildisplacementjncludeartificiaIcoresoildisplacementexperiment，microcosmicsimulationmodeloildisplacementexperimentandcrudecoresoildisplacementexperimentArtificialcoresoildisplaceme

4、ntexperimentincludesisotropicandanisotropicartificiaIcoresexperimentTheresultofartificialcoresexperimentindicated：Theeffectofgeneralactivatedwaterdrivejsnotwell，thegeneralactivatedwaterdriverecoveryefficiencyfactorinisot

5、ropicartificialcoresis242％andinanisotropicartificiaIcoresis341％1nfuseactivatedwaterreducedinjectionpressureinacertainextent，anddifferenttimeofinfusingactivatedwatersegmentintoisotropicCoreshasbigeffecttototaloilrecoverye

6、fficiencyfactorComparedwithgenerNactivatedwaterdisplacement，theoilrecoveryefficiencyfactorofinfuseactivatedwatersegmentearlierishigherandcumulativeinfuseporevolumemultipleisless，butjtmakenodiffeFenceforanisotropiccoresUn

7、derthesameinjectingconditions，theenhancedrecoveryefficiencyfactorofinjectingcompoundsegment(BSl30】％polymer400m∥L)is352％higherthanthatofonlyinjectingpureBSl3(01％)activatedwatersegmentForisotropicCOreStheerdaanc酣recoveryef

8、ficiencyfactorofinjectingtwosegmentsofpolymer(400mg幾)andBSl3(O1％)activatedwateris244％hig1erthanthatonlyinjectingcompoundsegment(BSl3，01％polymer400mg／L)，butforanisotropiccores。theenhancedrecoveryefficiencyfactorisveryclos

9、edThesizeofcompoundsegmenthassomeinfluencetooilrecoverytheenhancedrecoveryof03injectingporevolumemultipleishi曲erthanthatof02injectingporevolumemultipleTheresultofmicrocosmicsimulationmodeloildisplacementexperimentindicat

10、ed：ThesingleBSl3activatedwaterhasstrongwashefficiencybutmacroaffectscopecan’textendininjectprocess，theeffectisnotwellInfuseactivatedwaterandpolymercompoundsegmentcanimprovewateroilfluidityratio，startupremainedo訂thatwater

11、drivecan’taffectedandt1eeffectofreplacementisbetterthansingleactivatedwaterdriveTheresultofcrudecoresexperimentindicated：InthesameexperimentschemeofartificiaJCoresandcrudecoresthedisplacementeffectandrulearethesameConsid

12、eringtheinfluenceofinfuserateinlowpermeabilityoillayers，injectfluidandfluidityratioofcrudeoil，Ihadamendedsulfacapillarynumeralandfinallyconfirmedthesutracapillarynumeralamendformulaof10winterfacialtensionsystemdriveoilin