间歇式活性污泥法处理1-4丁二醇废水的研究

·60·Vol.16No.1ENVIRONMENTALPROTECTIONOFOIL&GASFIELDSABSTRACTABSTRACTsystem;riskcontrolFieldApplicationofCementingPlugCleanProductionTechnology（16）ShaoXuantao1,2(CollegeofEnvironmentalScienceandEngineering,ChinaUniversityofOcean;2.No.2CompanyofDownholeOperation,ShengliPetroleumAdministrationBureau)ABSTRACTDuringtheprocessofdownholeoperation,thelayerswithhighwatercutandabandonedwellsarealwaysblockedwithcementingplugusingcementingequipments.Thetubelesscementingplugtechnologyforusingwireropeputtingcementslurryintothepointedpositioninwellholeisproposed.Thenewtechnologydoesnotneedcementingtruckandcanreducedutycycle.Thecleanproductionprocesscanberealizedbyusingthenewtechnology.Theoperationissimple,andthehigheconomicbenefitscanbeobtained.Thistechnologycanbeextensivelyappliedintheworkovertreatmentofoilfield.KEYWORDSworkovertreatment;tubelesscementingplugtechnology;cleanproduction;economicbenefitDrillingSewageDisposalbyUsingTwo-stepEnhancedChemicalFlocculationTechnology（18）LiFanxiu1CuiShuhong2XueFasheng3(1.CollegeofChemistryandEnvironmentalEngineering,YangtzeUniversity;2.PetroleumIndustrialProcess;3.QianjianEnvironmentalMonitoringStation)ABSTRACTTheflocculatingsettingmethodisusefulfortreatingdrillingsewage.Thetwo-stepcoagulationandcentrifugemethodologywasadoptedtotreatdrillingsewageproducedinLiaoheOilfield.Thebestconditionsofcoagulationandtheoptimalcomplexcoagulatingagentweredetermined.Theresultsshowedthatthechemicaloxygendemandofchromiuminwastewatercouldbereducedtolessthan150mg/L.ThetreatedwatersamplesconformtotheGB8978-1996sewagedrainagestandard.Thismethodologyisfeasibleandeconomicandcanbeextensivelyapplied.KEYWORDSdrillingsewagetreatment;flocculatingsettlingmethod;two-stepcoagulationenhancedtechnology;chemicaloxygendemand;experimentalstudyDaGangOilfieldDisposedOilWastewaterwithBiologicalOxidationPondTechnique（21）HuQi(CNPCDagangOilfieldofSafety&EnvironmentalProtectionDepartment)ABSTRACTCNPCDagangOilfielddisposedoilextractionwastewaterwithoxidationpondtechnique.Byfiveyears,t