广东化工2023年第6期·100·www.gdchem.com第50卷总第488期孔板流量计清洗期间流量补偿必要性分析冉莉1,胡守博2*,苏思睿3,蒋文斌3,周建禄1(1.中国石油西南油气田公司重庆气矿,重庆401331;2.重庆科技学院石油与天然气工程学院,重庆401331;3.中国石油西南油气田公司重庆凯源石油天然气有限责任公司,重庆401331)[摘要]现场使用的孔板流量计在孔板清洗时无法计量天然气流量,计量的公平、公正性无法得到保证。实际生产中常通过经验方法进行估算,未引入进行补偿,国家相关标准也未说明是否需要进行流量补偿以及补偿的方法。通过对孔板流量计的工作原理及清洗维护时天然气流态的分析,在现场采用孔板流量计并联和孔板流量计与超声波流量计串联两种方式,对孔板清洗期间的天然气流量进行比对。结果表明全年清洗48次,则估算流量与实际流量相差约3.4×106m3。结论如下:(1)管道内孔板的存在与否,对管道内天然气流动有较大影响;(2)孔板清洗期间实际流量和经验估算量有较大差值;(3)孔板流量计清洗期间进行流量补偿是必要的。[关键词]孔板流量计;清洗期间;天然气;流量补偿[中图分类号]TQ[文献标识码]A[文章编号]1007-1865(2023)06-0100-04NecessityExperimentofFlowCompensationforOrificeFlowmeterduringCleaningRanLi1,HuShoubo2*,SuSirui3,JiangWenbin3,ZhouJianlu1(1.ChongqingDivisionofPetrochinaSouthwestOil&GasFieldCompany,Chongqing401331;2.SchoolofPetroleumandNaturalGasEngineering,ChongqingUniversityofScienceandTechnology,Chongqing401331;3.PetroChinaSouthwestOilandGasFieldCompanyChongqingKaiyuanOilandGasCo.,Ltd.,Chongqing401331,China)Abstract:Theorificeflowmeterusedinthefieldcannotmeasurenaturalgasflowwhentheorificeiscleaned,andthefairnessandimpartialityofmeasurementcannotbeguaranteed.Inactualproduction,empiricalmethodsareoftenusedtoestimate,andnocompensationisintroduced.Therelevantnationalstandardsdonotspecifywhethertheflowcompensationandcompensationmethodsareneeded.Throughtheanalysisoftheworkingprincipleoftheorificeflowmeterandthenaturalgasflowpatternduringthecleaningandmaintenance,thenaturalgasflowduringthecleaningoftheorificeiscomparedbyusingtheorificeflowmeterinparallelandtheorificeflowmeterandtheultrasonicflowmeterinseries.Theresultsshowtha...