第30卷第12期2023年12月仪器仪表用户INSTRUMENTATIONVol.302023No.12精细分注井下小方量流量计研究及调节阀改进孟培媛1,贾金瑞1,刘嘉豪1,刘宇光2(1.西京学院机械工程学院,西安710123;2.西安洛科电子科技股份有限公司,西安710065)摘要:随着油田精细化管理和第四代智能分注技术的普及,单层小方量注入的计量、调节技术显得尤为重要,同时还要满足低功耗长寿命的使用要求。目前,井下分注仪的孔板流量计及调节阀很难满足5m3/d的测调要求。根据井下测调原理,对影响小方量测调的技术难点进行了分析,针对性地设计了多级偏心孔板流量计,使过流面积增加69%,并满足5m3/d的起排要求;优化改进了调节阀结构和测调逻辑,使调节阀满足2.67m3/d~111.35m3/d的调节需求,且测调效率更高,防堵塞能力更好。通过理论计算、室内试验和现场验证,证明该技术方案效果良好,满足了小方量测调的工艺要求。关键词:小流量;孔板流量计;低渗;调节阀;智能配水器中图分类号:TH814文献标志码:AResearchonSmallFlowMeasurementandImprovementofRegulatingValveUsedontheDownholeIntelligentWaterDistributorMengPeiyuan1,JiaJinrui1,LiuJiahao1,LiuYuguang2(1.SchoolofMechanicalEngineering,XijingUniversity,Xi’an,710123,China;2.Xi’anLocoElectronicsTechnologyCo.,Ltd.,Xi’an,710065,China)Abstract:Withthepopularizationofthefourthgenerationintelligentwaterfloodingtechnologyintheoilexploitationindustry,theinjectingwater’smeasurementandadjusttechnologywithsmallflowisparticularlyimportant.Downholewaterdistributoralsoneedstomeettherequirementsoflowpowerconsumptionandlonglife.Atpresent,itisdifficultfortheorificeplateflowmeterandregulatingvalvetomeettherequirementsof5m³/d.Accordingtothetheoryofdownhole-flowmeasurementandadjustment,themulti-stageoffsetorificeplateflowmeterisdesigned,itcanincreasetheflowareaby69%andlowerthemeasuringrangeto5m³/d.Optimizedtheregulatingvalve’sstructureandadjustinglogic,sothattheregulatingvalvecanmeettheadjustmentrequirementsof2.67m³/dto111.35m³/d.Also,theimprovedregulatingvalvehasbetterefficiencyandnoteasytobeblocked.Throughtheoreticalcalculation,laboratorytestandfieldverification,thistechnicalschemehasbeenprovedworkingwellvirtual...