Three-Dimensional Sound Source Location Algorithm for Subsea Leakage Using Hydrophone  

作　　者：LI Hao-jie CAI Bao-ping YUAN Xiao-bing KONG Xiang-di LIU Yong-hong Javed Akbar KHAN CHU Zheng-de YANG Chao TANG An-bang 

机构地区：[1]College of Mechanical and Electronic Engineering,China University of Petroleum,Qingdao 266580,China [2]Shenzhen Urban Public Safety Technology Institute,Shenzhen 518000,China [3]Institute of Hydrocarbon Recovery,Universiti Teknologi PETRONAS,Bandar Seri Iskandar,Perak Darul Ridzuan 32610,Malaysia

出　　处：《China Ocean Engineering》2024年第2期326-337,共12页中国海洋工程（英文版）

基　　金：financially supported by the National Key Research and Development Program of China(Grant No.2022YFC2806102);the National Natural Science Foundation of China(Grant Nos.52171287,52325107);High Tech Ship Research Project of Ministry of Industry and Information Technology(Grant Nos.2023GXB01-05-004-03,GXBZH2022-293);the Science Foundation for Distinguished Young Scholars of Shandong Province(Grant No.ZR2022JQ25);the Taishan Scholars Project(Grant No.tsqn201909063)。

摘　　要：Leakages from subsea oil and gas equipment cause substantial economic losses and damage to marine ecosystem,so it is essential to locate the source of the leak.However,due to the complexity and variability of the marine environment,the signals collected by hydrophone contain a variety of noises,which makes it challenging to extract useful signals for localization.To solve this problem,a hydrophone denoising algorithm is proposed based on variational modal decomposition(VMD)with grey wolf optimization.First,the average envelope entropy is used as the fitness function of the grey wolf optimizer to find the optimal solution for the parameters K andα.Afterward,the VMD algorithm decomposes the original signal parameters to obtain the intrinsic mode functions(IMFs).Subsequently,the number of interrelationships between each IMF and the original signal was calculated,the threshold value was set,and the noise signal was removed to calculate the time difference using the valid signal obtained by reconstruction.Finally,the arrival time difference is used to locate the origin of the leak.The localization accuracy of the method in finding leaks is investigated experimentally by constructing a simulated leak test rig,and the effectiveness and feasibility of the method are verified.

关 键 词：grey wolf optimizer variational modal decomposition mean envelope entropy correlation coefficient time difference of arrival 

分 类 号：TE5[石油与天然气工程—油气田开发工程] TB565.1[交通运输工程—水声工程]