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...
