水处理与注水工程仲婷等:某联合站采出水水质分析及阻垢技术研究油气田地面工程https://yqtd.cbpt.cnki.net某联合站采出水水质分析及阻垢技术研究仲婷1贺珊1薛雷2李鑫3权玲1王辉31玉门油田分公司生产服务保障中心装置运行部2玉门油田分公司老君庙采油厂青西联合站3玉门油田分公司老君庙采油厂老君庙作业区摘要:受地质条件和注水水质的要求,某联合站接收来自不同Y1和Y2层位的采出水,在采出水处理设备、管线和井筒中出现大量的结垢产物,影响了联合站水处理系统的正常运行。为避免这种情况,在采出水水质分析的基础上,通过Scalechem结垢趋势模拟软件,考察不同层位采出水的配伍性、结垢趋势、结垢量和结垢类型,结合室内实验验证了模拟结果的准确性,随后对不同类型的阻垢剂进行筛选,将化学阻垢法和工艺阻垢法结合,实现复合式清垢技术。结果表明:在Y1∶Y2=0.6∶0.4时,结垢量最大为366.46mg/L,结垢产物为CaCO3和BaSO4;随着温度上升,CaCO3和SrCO3的结垢量有所增加,BaSO4的结垢量有所减少;随着压力上升,CaCO3和BaSO4的结垢量有所下降;当DTPMPA∶PASP的复配比例为1∶1时,阻垢率为94.2%,该配方最大程度发挥了阈值、螯合增溶、晶体错位作用;距离油区出口20m后的管段是流速较低、容易结垢的区域,可安装械清管器,实现定期清除结垢产物的目的。关键词:采出水;阻垢;清垢;结垢量;结垢类型AnalysisofProducedWaterQualityandStudyonScaleInhibitionTechnologyofaMulti-purposeStationZHONGTing1,HEShan1,XUELei2,LIXin3,QUANLing1,WANGHui31DeviceOperationDepartmentofProductionServiceGuaranteeCenter,YumenOilfieldBranch2QingxiMulti-purposeStationofLaojunmiaoOilProductionPlant,YumenOilfieldBranch3LaojunmiaoOperationAreaofLaojunmiaoOilProductionPlant,YumenOilfieldBranchAbstract:Duetotherequirementsofgeologicalconditionsandinjectionwaterquality,amulti-pur-posestationreceivesproducedwaterfromdifferentY1andY2formations,andalargenumberofscaleproductsappearintheproducedwatertreatmentequipment,pipeline,andshaft,whichaffectsthenormaloperationofthemulti-purposestationwatertreatmentsystem.Inordertoavoidthisproblem,onthebasisoftheproducedwaterqualityanalysis,thecompatibility,scalingtrend,scaleamount,andscaletypeofproducedwateratdifferentlevelsareinvestigatedbyS...