调速清管器新型电磁测速系统设计及仿真

Design and simulation of a new electromagnetic speed measuring system for variable speed pigs

王思凡¹;  黄婧媛²;  张仕民³

1. 川庆钻探工程有限公司钻采工程技术研究院长庆分院;
2. 中原油田油气储运管理处;
3. 中国石油大学(北京)机械与储运工程学院

WANG Sifan¹;  HUANG Jingyuan²;  ZHANG Shimin³

1. Changqing Branch, Drilling & Production Technology Research Institute, CNPC Chuanqing Drilling Engineering company Limited;
2. Oil & Gas Storage and Transportation Company, SINOPEC Zhongyuan Oilfield;
3. College of Mechanical and Transportation Engineering, China University of Petroleum (Beijing)

调速清管器; 电磁测速系统; 磁化单元; 速度检测单元

variable speed pig; electromagnetic speed measuring system; magnetization unit; speed detection unit

为提高调速清管器在高速运行及瞬时速度突然增大情况下的实时调速功能,克服以往里程轮式测速系统因里程轮滑动而导致速度严重失真的缺陷,结合调速清管器的工作原理,提出了基于电磁感应原理的一种新型电磁测速系统,主要包括磁化单元、速度检测单元、退磁单元、支撑轮架、安装筒等结构。通过电磁理论分析,重点对电磁测速系统的磁化单元和速度检测单元进行了仿真设计,详细论述了设计安装要点;同时对于电磁测速系统的设计,提出了基于速度比值的速度测量与计算方法,并通过仿真模拟论证了系列设计的可行性。该系统能够满足调速清管器在速度突变及高速运行情况下对于速度的实时测量要求。

In order to improve the real-time speed control capacity of variable speed pigs when they run at high speed or their speed rises suddenly, and to overcome serious speed distortion of odometer wheel speed measuring systems caused by the slippage of odometer wheels, a new electromagnetic (EM) speed measuring system is developed on the basis of EM induction principle, combined with the working principle of variable speed pigs. The new system is mainly composed of magnetization unit, speed detection unit, demagnetization unit, support wheel carrier and mounting cylinder. After analysis performed on electromagnetic theories, simulating design is conducted specially for magnetization units and speed detection units, and the design and installation essentials of the system are illustrated in detail. In the light of its design program, a speed measuring and calculating method based on speed ratio is proposed. Then, its feasibility is demonstrated by means of simulations. This system can meet the requirements for real-time speed measurement when variable speed pigs run at high speed or their speed rises suddenly.