声波传感技术在多相流管道泄漏检测中的应用  

Application of acoustic sensing technology in the leakage detection of multiphase flow pipeline

作　　者：纪健[1] 李玉星[1] 纪杰[1] 敬华飞 JI Jian;LI Yuxing;JI Jie(JING Huafei（China University of Petroleum （East China）)

机构地区：[1]中国石油大学(华东)

出　　处：《油气储运》2018年第5期493-500,共8页Oil & Gas Storage and Transportation

基　　金：国家自然科学基金面上项目"气液混输管道泄漏声波产生机理与传播特性研究";51774313;国家自然科学基金青年科学基金项目"基于湍声耦合机理的输气管道泄漏声波传播规律研究";51704317;山东省自然科学基金联合专项"基于声波特征的输气管道泄漏监测技术及事故演化预测模型研究";ZR201702160359

摘　　要：海洋油气采集、运输主要是由多相流管道完成,多相流管道检测一直是管道安全管理的难点,基于声波传感技术的诸多优点,对其在多相流管道泄漏检测中的应用情况进行了研究。首先总结了基于声波传感技术的管道泄漏检测研究现状,然后通过气液两相流管道的声波法泄漏检测认知试验及对声波传感器采集的试验数据进行初步处理,验证声波传感技术在多相流管道泄漏检测的可行性。结果表明:在不同流型条件下,采集到的泄漏声波信号特征不同,但都具有第一峰值、第二峰值特征,因而可以利用求信号平均幅值、均方值及分段积分的方法来判断管道泄漏与否,并利用信号的互相关性实现泄漏定位。基于上述研究,探讨了声波传感技术在多相流管道检测中的研究和发展方向。Offshore oil and gas are mainly collected and transported through multiphase flow pipelines, and the detection of multiphase flow pipelines has always been the difficulty of pipeline safety management. For the acoustic sensing technology has many advantages, its application in the leakage detection of multiphase flow pipelines was investigated in this paper. First, the status of pipeline leakage detection by means of acoustic sensing technology was summarized. Then, the feasibility of acoustic sensing technology to detect the leakage of multiphase flow pipeline was verified by performing cognition experiments based on acoustic method for leakage detection of gas-liquid two-phase flow pipeline and processing preliminarily the experimental data acquired by acoustic sensor. It is shown that the characteristics of acquired leakage acoustic signals are different under different flow regimes, but they all have the characteristics of the first peak and the second peak. Whether a pipeline is leaked can be discriminated by calculating average amplitude, mean square value and sectional integral of signals. And the leakage can be located by the cross correlation of signals. Based on the above research, the research and development directions of acoustic sensing technology for multiphase flow pipeline detection were discussed. （7 Figures, 1 Table, 21 References）

关 键 词：声波传感技术 气液两相流 管道 泄漏 检测 

分 类 号：TE832[石油与天然气工程—油气储运工程]