樹膠雜多糖及其衍生物在鉆井液中的應用研究.pdf

1、西安石油大學碩士學位論文樹膠雜多糖及其衍生物在鉆井液中的應用研究姓名：馮文強申請學位級別：碩士專業(yè)：應用化學指導教師：張潔20040515Subject：AStudyontheApplicationDerivativesinDrillingFluidSpecialty：AppliedChemistryName：FengWenQiang(signature)Instructor：ZhangJie(signature)ofTreeGumHe

2、rteropolysaccharideandIts駐塑竺整型塑玉壘——：=7——————一ABSTRACTThetreegumismostlymadeupofnaturalheteropoiysaccharideglycosideIthadcausedgreatinterestofoilindustrybeauseitCallbeagoodoilfieldchemicalbychemicalprocessingComparingtheb

3、eangum，suchaSguargum，whichisthemostcommonmaterialinuseasafracturinggellantthetreegumhavenicerpropertytofermentationresistanceSoitisquitesuitabletOapplyinthecirculativedrillingfluidInthispaper，aseriesderivativesofPGtreegu

4、mweresynthesizedthroughchemicalmodificationsuchasoxidationgraftcopolymerization，crosslingking，etcTheinfluenceofreactionconditionssuchasmassratioofreactantsthetimeofreactionandthetemperatureofreactionOnthepropeRiesofderiv

5、ativesindrillingfluidhavebeendiscussedAndoptimumreactionconditionwerestudiedbyorthogonalanderroranalysisFinally，thepropertiesofthederivativesofPGgumindrillingfluid，suchasviscosityenhancing，filtrationreducing，lubricatingm

6、udcakeandinhibitinghydrationandswellingofclaywereevaluatedThemainresultsaresummarizedasfollows：AmongPGgumanditsderivatives。whichallhad出esamemassconcentration(O，5％)indrillingfluid，thederivativeofboraxcrosslinkingmodificat

7、ion(PO5)hadthebestpropertyofviscosityenhancingtheradioofviseosityenhancingis100％and909％respectivelyinthefreshmudandthe4％brinemud；thederivativeofformaldehydecrosslinkingmodification(PG4，havethebestpropertyoffiltrationredu

8、cing，theradiooffiltrationreducingis5t8％，638％and64％respectivelyinthefleshmud，brinemudandsaturatedbrinemud；thederivativeofglycosidicmodificationhavethebestpropertyoftubricatirtgmudcake，AmongPGgumanditsderivativeswhichallha

9、dthesamemassconcentration(O5％)infreshwater，thederivativeofalkyl(PG一6)hadthebestpropertyofinhibitinghydrationandswellingofclayAmongPGgumanditsderivatives，thederivativeofgraftcopolymerization(PG一2)andPG一4，PG一5havebetterpro