摘要
为了提高事故井定位精度,建立了瞬变电磁法的救援井探测模型,以事故井的空间几何定位方法为基础,利用Comsol Multiphysics仿真软件对救援井中瞬变电磁传感器探测性能的影响因素进行了仿真分析。仿真结果表明:发射电流和收发射线圈匝数均与接收线圈感应到的二次涡流场强度成正比;电磁探头距事故井套管越近,接收线圈接收到的感应电动势幅值越大,由其反演的事故井距离与方位信息越准确。研究结果对救援井中瞬变电磁传感器的优化改进具有一定的参考价值,有利于实现事故井的精确定位。
In order to improve localization precision of blowout well,the transient electromagnetic（TEM） method model for relief well detection is established.On the basis of the method of spatial geometric localization,the factors which influence the detection performance of TEM sensor in relief well are simulated and analyzed using Comsol Multiphysics simulation software. The results demonstrate that the emission current and the number of turns of receiving and transmitting coils are proportional to the secondary eddy-current field strength. The smaller the distance between the blowout well casing and electro-magneto probe is,the larger the amplitude of the induced electromotive force（EMF） received by the receiving coils will be; and thus the distance and location information inversed from the EMF can be more accurate. The research results can help to improve and optimize the TEM sensor,which is beneficial for accurate positioning of the blowout well.
作者
杨玲
党博
刘容
陈嘉辉
YANG Ling;DANG Bo;LIU Rong;CHEN Jia-hui(Key Laboratory of Ministry of Education for Photoelectric Logging and Detecting of Oil and Gas,School of Electronic Engineering,Xi＇an Shiyou University,Xi＇an 710065,China)
出处
《传感器与微系统》
CSCD
2018年第11期31-33,37,共4页
Transducer and Microsystem Technologies
基金
国家自然科学基金资助项目(51504194)
陕西省教育厅重点学科研究计划(重点实验室)项目(17JS106)
西安石油大学研究生创新与实践能力培养项目(YCS16211020)
