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[1]刘宝全,刘全桢,毕晓蕾,等.雷击石油钻机井架电磁脉冲危害研究[J].中国安全生产科学技术,2013,9(4):109-114.[doi:10.11731/j.issn.1673-193x.2013.04.020]
 LIU Bao quan,LIU Quan zhen,BI Xiao lei,et al.Research on lightning electromagnetic pulse harm of lightning stroke on oil derrick[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2013,9(4):109-114.[doi:10.11731/j.issn.1673-193x.2013.04.020]
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雷击石油钻机井架电磁脉冲危害研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
9
期数:
2013年4期
页码:
109-114
栏目:
职业安全卫生管理与技术
出版日期:
2013-04-30

文章信息/Info

Title:
Research on lightning electromagnetic pulse harm of lightning stroke on oil derrick
作者:
刘宝全12刘全桢12毕晓蕾12高鑫12姜辉12刘娟12
(1中国石油化工股份有限公司青岛安全工程研究院,山东青岛266071; 2化学品安全控制国家重点实验室,山东青岛266071)
Author(s):
LIU Baoquan 12 LIU Quanzhen 12 BI Xiaolei 12 GAO Xin 12 JIANG Hui 12LIU Juan 12
(1 SINOPEC Safety Engineering Institute, Shandong Qingdao 266071,China; 2 State Key Laboratory of Chemical Safety, Shandong Qingdao 266071, China)
关键词:
雷击钻机井架雷电电磁脉冲时域有限差分法
Keywords:
lightning stroke oil derrick LEMP FDTD
分类号:
X924.3
DOI:
10.11731/j.issn.1673-193x.2013.04.020
文献标志码:
A
摘要:
为了分析雷击井架产生的雷电电磁脉冲(LEMP)危害,基于MTLL雷电回击模型,采用时域有限差分法(FDTD)仿真计算了100kA强雷电雷击钻机井架产生的LEMP。结果表明,水平电场在地面以上受地面反射影响波形变化很大,而地面以下波形变化不大,主要是幅值的变化;垂直电场地面上下的幅值差别非常大,地上的波形随高度的增大差别不大,地下的波形第一个峰值随深度的增大而减小,由于反射的影响,第二个峰值随深度的增大反而有所增大;水平磁场的变化比较规则,地上的水平磁场受高度的影响较小,仅随距通道距离的增大而减小,地下的水平磁场随深度的增大,幅度有所衰减,波形趋向平滑;在地上10m,距离雷电通道10m处的水平电场峰值达到了150kV/m以上,垂直电场峰值达到了200kV/m以上,水平磁场峰值达到了2000A/m以上,如此强大的电磁脉冲对钻机的防雷设计是一种严峻考验。
Abstract:
In order to analyze lightning electromagnetic pulse (LEMP) caused by lightning stroke on derrick, based on the MTLL lightning return stroke model, the LEMP caused by lightning stroke derrick under 100kA lightning current was calculated using finitedifference timedomain (FDTD) method. The results indicated that the overground waveform of the horizontal electric field varies greatly because of the influence of ground reflection, while the underground waveform changes slightly, primarily a change in magnitude. The difference of the vertical electric field amplitude between above the ground and below the ground is very large, and the overground waveform changes slightly with height, and the first peak of the underground waveform reduces with increment of depth, but the second peak increases with increment of depth because of the influence of ground reflection. The horizontal magnetic field changes regularly, which below ground changes slightly with height and decreases with the increment of distance to the lightning channel, but the underground horizontal magnetic field decays with increment of depth and tends smooth. At the height of 10m above ground, the peak of the horizontal electric reaches more than 150kV/m at 10m away from the lightning channel, the vertical electric field reaches 200kV/m, the horizontal magnetic field reaches 2000A/m, and the powerful LEMP is a severe test to lightning protection design of drilling rig.

参考文献/References:

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备注/Memo

备注/Memo:
国家科技支撑计划项目(2012BAK03B03)
更新日期/Last Update: 2013-07-11