瞬变电磁阵列救援井近距离探测方法  

Transient electromagnetic array system for relief welldrilling in short distance

作　　者：李国玉[1] 许林康 杨玲[2] 刘长赞 党博[2] LI Guoyu;XU Linkang;YANG Ling;LIU Changzan;DANG Bo(China Oilfield Services Limited,Beijing 101149,China;Shaanxi Key Laboratory of Measurement and 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5期34-36,40,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);陕西省自然科学基础研究计划资助项目(2018JQ5133)。

摘　　要：为了提高救援井与事故井之间的连通成功率,提出一种瞬变电磁阵列探头救援井近距离探测方法。以井下瞬变电磁探测系统的阵列信号处理为基础,结合Radon变换原理和瞬变电磁阵列探头的对称特性,对被测范围内的一段事故井套管与救援井的相对姿态进行判断。模拟试验结果表明:该方法可有效改善救援井近距离探测性能,识别事故井与救援井的相对姿态,为救援井的跟随钻井阶段提供关键信息。In order to improve the connection rate between relief well and accident well,a transient electromagnetic(TEM)array probe detecting method for relief well drilling in short distance is presented.Based on the array signal processing of the borehole TEM detecting system,combined with the symmetry of the proposed array probe Radon transform,where the relative attitudes between a relief well and a blowout well can be determined within the detection range.Simulation experiment results demonstrate the effectiveness of the proposed method for improving detection performance in short distance,identify relative attitude of accident well and relief well,offer significant information for the tracing phase of relief well.

关 键 词：瞬变电磁阵列 探头 救援井 事故井 井下探测 RADON变换 

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]