基于GMR传感器阵列的救援井探测系统设计  

Design of relief well detection system based on GMR sensor array

作　　者：罗曦[1] 王港 杨玲[2] 刘长赞 李爱勇[1] 党博[2] LUO Xi;WANG Gang;YANG Ling;LIU Changzan;LI Aiyong;DANG Bo(China Oilfield Services Limited,Beijing 101149,China;Shaanxi Key Laboratory of Measurementand Control Technology for Oil and Gas Wells,Xi’an Shiyou University,Xi’an 710065,China)

机构地区：[1]中海油田服务股份有限公司,北京101149 [2]西安石油大学陕西省油气井测控技术重点实验室,陕西西安710065

出　　处：《传感器与微系统》2020年第9期84-86,93,共4页Transducer and Microsystem Technologies

基　　金：国家重大专项资助项目(2016ZX05028-001);国家自然科学基金资助项目(51974250);陕西省青年科技新星资助项目(2020KJXX-018)。

摘　　要：对于发生井喷事故的油气井,钻救援井使救援井与喷井在某个层位钻遇连通,将高密度钻井液或水泥通过救援井输入事故井是控制井喷的终极手段。为了提高两井的连通效率,提出了基于巨磁阻(GMR)传感器阵列的瞬变电磁(TEM)救援井探测系统。以瞬变电磁法救援井GMR传感器信号模型为基础,研究了救援井与事故井的磁场分布,设计了基于GMR传感器阵列的瞬变电磁救援井探测系统。模拟试验结果表明:该系统能有效提高瞬变电磁救援井探测系统的精度,为救援井与事故井的钻遇连通提供重要信息。Drilling relief well is the ultimate means to control blowout,which connects the relief well and blowout well in a certain layer to input high-density drilling fluid or cement into the accident well.In order to improve the connection efficiency of the two wells,a transient electromagnetic(TEM)relief well detecting system based on giant magneto resistance(GMR)sensor array is proposed.Based on the GMR sensor signal model,the magnetic field distribution of relief well and accident well is studied and the TEM detection system of relief well with GMR sensor array is designed.Simulation experiment results demonstrate that the proposed system can effectively improve the precision of TEM system,which can provide important information for the drilling procedure of relief well.

关 键 词：巨磁阻(GMR)传感器 阵列 瞬变电磁 救援井 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TE21[自动化与计算机技术—控制科学与工程]