Optimization of magnetic anomaly detection with single-axis sensor for pig locating in low latitude areas

作     者：Wei Xu Zhiyong Guo Zhongxiang Liu Peng Zhang Yanxi Zhou 

作者机构：School of Mechatronic EngineeringSouthwest Petroleum UniversityChengdu610500China 

出 版 物：《Petroleum》 (油气（英文）)

年 卷 期：2019年第5卷第4期

页      面：417-423页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 0808[工学-电气工程] 07[理学] 0820[工学-石油与天然气工程] 070801[理学-固体地球物理学] 0817[工学-化学工程与技术] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0816[工学-测绘科学与技术] 0827[工学-核科学与技术] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 

基　　金：This work is supported by the National Natural Science Foundation of China under Grant No.41374151 the Sichuan Province Applied Basic Research Project(No.2017JY0162) the Young Scholars Development Fund of SWPU(No.201599010079) 

主　　题：Pig blockage Pig locating Single-axis magnetic anomaly Magnetic anomaly detection Optimized installation of sensor 

摘      要：When a pig mounted with permanent magnets gets stuck in the pipeline,it can be located by detecting the magnetic anomalies on the ground using a single-axis magnetic *** order to collect the magnetic anomaly efficiently through single-axis magnetic sensor,a geometric detection model and calculation method for singleaxis magnetic anomaly detection is established in this *** distribution of magnetic inclination and declination of the measuring points is *** results indicate that the magnetic inclination of all measuring points vary within a small range of 2°,and this value is highly dependent on the magnetic sensor which is configured aboveground around the geomagnetic ***,the magnetic declination at different points of detection surface is subject to the geomagnetic components and the Y-axis component of the magnetic field of *** magnetic declinations distribute irregularly and vary in a wide ***,to achieve a high-efficiency detection with the single-axis sensor,the sensor shall be placed in such a manner that the magnetic inclination thereof coincides with the geomagnetic *** magnetic declination of the sensor can be calculated using s,the superposed Y-axis component induced by the permanent magnets,and the corresponding formula given in this *** article demonstrates the feasibility of locating a blocked pig in the pipeline based on the single-axis magnetic anomaly *** will have a practical significance in guiding the engineering detection.