流型对多相流管道泄漏声波信号的影响  

Influence of flow pattern on leakage acoustic signal of multiphase pipeline

作　　者：王毅[1] 李俊飞[1] 纪宝强 纪健 WANG Yi;LI Junfei;JI Baoqiang;JI Jian(Shixi Oilfield Operation Area,PetroChina Xinjiang Oilfield Company;School of Civil&Architecture Engineering,East China University of Technology)

机构地区：[1]中国石油新疆油田分公司石西油田作业区 [2]东华理工大学土木与建筑工程学院

出　　处：《油气储运》2021年第10期1138-1144,共7页Oil & Gas Storage and Transportation

摘　　要：为解决现有单相介质管道泄漏检测机理未考虑流型因素而难以适用于多相流管道的问题,开展了理论研究与试验分析。分析了不同流型对管道泄漏声波信号的影响机理,并结合多相流声波泄漏检测试验,采集了不同流型工况条件下管道泄漏前后的声波信号,利用功率谱密度(Power Spectral Density,PSD)分析、概率密度函数(Probability Density Function,PDF)分析、幅频谱分析等信号处理方法分析其特征。结果表明:流型对多相流管道泄漏特征影响极大,不同的流型工况下管道流动背景噪声特征及泄漏声源特性不同。该研究为多相流管道声波泄漏检测的基础研究,可为后续开展不同流型工况下管道泄漏声波产生及传播机理研究提供理论支持。(图8,表1,参23)In order to solve the problem that it is difficult to apply the existing leakage detection mechanism of singlephase pipelines with no consideration to the influence of flow patterns to the multiphase pipelines,the theoretical study and test analysis were conducted.Herein,the influence mechanism of flow patterns on the acoustic signal of pipeline leakage was studied,and in conjunction with the multiphase flow acoustic leakage detection test,the acoustic signals before and after pipeline leakage under different flow patterns were collected,of which the characteristics were also analyzed with the signal processing methods such as the Power Spectral Density(PSD)analysis,the Probability Density Function(PDF)analysis and the amplitude spectrum analysis.The results show that the flow pattern has a great influence on the leakage characteristics of multiphase pipelines,and the flow background noise and leakage sound source of pipelines have variable characteristics under different flow patterns.Generally,this study is a basic research on the acoustic leakage detection of multiphase pipelines,and it can provide theoretical support for the subsequent research on the generation and propagation mechanism of pipeline leakage acoustic waves under different flow patterns.(8 Figures,1 Table,23 References)

关 键 词：多相流管道 流型 声波 泄漏 检测 

分 类 号：TE832[石油与天然气工程—油气储运工程]