应用与开发第46卷第3期2023年3月Vol.46No.3Mar.2023HANGUAN焊管WELDEDPIPEANDTUBE管道泄漏检测及定位算法的改进和应用李明1,李慧娜2,郭辉2,杨帆3,高满仓4,梁昌晶1(1.中国石油华北油田分公司第五采油厂,河北辛集052360;2.中国石油华北油田分公司第一采油厂,河北任丘062552;3.河北华北石油工程建设有限公司炼化分公司,河北任丘062552;4.中国石油集团渤海钻探工程有限公司井下作业分公司,河北任丘062552)摘要:为了提高现有输油管道负压波检测系统的灵敏度和检测性能,在不增加硬件的基础上,采用分段差值的方法确定是否发生泄漏,基于相似性原理计算信号间的欧式距离,由此确定压力信号至上、下游的时差,并通过现场泄油试验进行验证。结果表明,原有算法只能检测到突发泄漏,但对于泄漏量小于1.1%的缓慢泄漏工况未能有效检测;改进算法后可检测微小缓慢泄漏,当采样点数移动步长为5时,定位的绝对误差为0.52~2.47km,标准差为0.95km,定位结果误差较小。该方法适合资源受限的嵌入式管道泄漏检测方法的改进。关键词:管道;泄漏;定位;相似性;欧式距离中图分类号:TE973.6文献标识码:BDOI:10.19291/j.cnki.1001-3938.2023.03.006ImprovementandApplicationofPipelineLeakDetectionandLocationAlgorithmLIMing1,LIHuina2,GUOHui2,YANGFan3,GAOMancang4,LIANGChangjing1(1.CNPCNo.5OilProductionPlantofHuabeiOilfieldCompany,Xinji052360,Hebei,China;2.CNPCNo.1OilProductionPlantofHuabeiOilfieldCompany,Renqiu062552,Hebei,China;3.Refining&ChemicalBranchHebeiHuabeiPetroleumEngineering&ConstructionCo.,Ltd.,Renqiu062552,Hebei,China;4.CNPCDownholeServicesCompanyofBohaiDrillingEngineeringCo.,Ltd.,Renqiu062552,Hebei,China)Abstract:Inordertoimprovetheexistingpipelinenegativepressurewavedetectingsensitivityanddetectionperformanceofthesystem,withoutanyincreaseinhardware,onthebasisofusingsegmenteddifferencemethodtodeterminewhethertheleaking,basedonthesimilaritytheorytocalculatetheEuclideandistancebetweensignals,determinesignalstouploadfirst,downstreamofthejetlag,andisverifiedbyfielddrainageexperiment.Theresultsshowthattheoriginalalgorithmcanonlydetecttheburstleakage,andcannotdetecttheslowleakageconditionwiththeleakagevolumelessthan1.1%.Theimprovedalgorithmcanmonitors...