王斌,党博,陈龙,张生林,袁涛

• 1:西安石油大学光电油气测井与检测教育部重点实验室

摘要(Abstract)：

针对传统三分量瞬变电磁测井仪分辨率低的问题,研究基于阵列式瞬变电磁探伤仪的多通道采集系统。在瞬变电磁损伤检测理论模型的基础上,设计基于AD7656的多通道采集电路,可以对阵列分布探头的指数衰减信号进行同步采集。并对比分析了分时采集方式与同时采集方式的优缺点。最后,针对多层管柱及不同形状的套管损伤进行试验。结果表明,阵列式瞬变电磁探测系统可以实现多层管柱损伤检测,多通道采集系统有效地提高了损伤检测的解释精度。

关键词(KeyWords)： 瞬变电磁法;阵列式分布;损伤检测;多通道采集;多层管柱;解释精度

Abstract:

Keywords:

基金项目(Foundation): 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);; 陕西省高校科协青年人才托举计划项目(20160120)~~

作者(Author): 王斌,党博,陈龙,张生林,袁涛

DOI: 10.16652/j.issn.1004-373x.2018.22.015

参考文献(References)：

• [1]牛之琏.时间域电磁法原理[M].长沙:中南大学出版社,2007.NIU Zhilian. Principle of time domain electromagnetic method[M]. Changsha:Central South University Press,2007.
• [2]陈载林,黄临平,陈玉梁.我国瞬变电磁法应用综述[J].铀矿地质,2010,26(1):51-54.CHEN Zailin,HUANG Linping,CHEN Yuliang. A review on TEM application in China[J]. Uranium Geology,2010,26(1):51-54.
• [3]谭劭聪,王鹤,席振铢,等.瞬变电磁法三分量联合处理与解释[J].中国有色金属学报,2012,22(3):909-914.TAN Shaocong,WANG He,XI Zhenzhu,et al. Joint-processing and interpretations of three-components in transient electromagnetic method[J]. The Chinese journal of nonferrous metals,2012,22(3):909-914.
• [4]陈嘉辉,李志强,张文辉.多分量瞬变电磁法套损检测系统[J].电子测试,2015(19):4-5.CHEN Jiahui,LI Zhiqiang,ZHANG Wenhui. Multi-component transient electromagnetic method case-damage detection system[J]. Electronic test,2015(19):4-5.
• [5]徐建华.层状媒质中的电磁场与电磁波[M].北京:石油工业出版社,1997.XU Jianhua. Electromagnetic fields and electromagnetic waves in layered media[M]. Beijing:Petroleum Industry Press,1997.
• [6] NEWMAN G A,HOHMANN G W,ANDERSON W L. Transient electromagnetic response of a three-dimensional body in a layered earth[J]. Geophysics,1986,51(8):1608-1627.
• [7] TIJHUIS A G. Toward a stable marching-on-in-time method for two-dimensional transient electromagnetic scattering problems[J]. Radio science,2016,19(5):1311-1317.
• [8]党博,杨玲,刘长赞,等.瞬变电磁测井信号自适应相干积累检测方法[J].测井技术,2017,41(5):534-537.DANG Bo,YANG Ling,LIU Changzan,et al. Adaptive coherent integration based signal detection method for transient electromagnetic logging[J]. Well logging technology, 2017, 41(5):534-537.
• [9] FITTERMAN D V. Transient electromagnetic sounding for groundwater[J]. Geophysics,1986,51(4):995-1005.
• [10] NEWMAN G A,HOHMANN G W. Transient electromagnetic responses of high-contrast prisms in a layered earth[J]. Exploration geophysics,1988,19(5):691.
• [11] LEE T. Transient electromagnetic response of a polarizable ground[J]. Geophysics,2012,46(7):1037-1041.
• [12] DANG B,YANG L,DU N,et al. Auxiliary sensor-based borehole transient electromagnetic system for the nondestructive inspection of multipipe strings[J]. Sensors,2017,17(8):1-15.
• [13] DANG B,YANG L,DANG R,et al. Borehole electromagnetic induction system with noise cancelation for casing inspection[J]. IEICE electronics express,2016,13(17):1-9.
• [14]陈茹梅,郭建硕.AD7656型模/数转换器在信号采集系统中的应用[J].国外电子元器件,2006(2):67-71.CHEN Rumei,GUO Jianshuo. Application of ADC AD7656in signal collection system[J]. International electronic elements,2006(2):67-71.
• [15]常铁原,王欣,陈文军.多路数据采集系统的设计[J].电子技术应用,2008,34(11):76-78.CHANG Tieyuan, WANG Xin, CHEN Wenjun. Design of multi-channel data acquisition system[J]. Application of electronic technique,2008,34(11):76-78.