Volume 45 Issue 5
Oct.  2017
Turn off MathJax
Article Contents
Abstract
References
Related Articles
CHEN Mingsheng, SHI Xianxin. Detecting depth of transient electromagnetic method from different points of view[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(5): 140-146. DOI: 10.3969/j.issn.1001-1986.2017.05.024
Citation: CHEN Mingsheng, SHI Xianxin. Detecting depth of transient electromagnetic method from different points of view[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(5): 140-146. DOI: 10.3969/j.issn.1001-1986.2017.05.024
shu

Detecting depth of transient electromagnetic method from different points of view

  • Xi'an Research Institute, China Coal Technology and Engineering Group Corp., Xi'an 710077, China

Funds: 

National Natural Science Foundation of China(41374150)

More Information
  • Received Date: August 05, 2016
  • Published Date: October 24, 2017
    Graphical Abstract
    • Abstract
  • In this paper, the detection depth of transient electromagnetic(TEM) field method is described in several aspects. The “smoke ring effect” of the equivalent electric current ring downward extension depth was cited. The diffusion depth of the maximum plane wave field was derived. And through the analysis of the time-frequency(T-F) the relation and distinction between the penetration depth of time domain and frequency domain was explained. Ground actual detection time needed for the same depth of information is at least twice as much as one-way diffusion depth, namely double travel time. According to several aspects of electromagnetic induction, reflection of electromagnetic waves, the frequency sounding curve of false phenomenon of extreme value and quasi seismic converted wave slowness, etc., this conclusion is discussed.
    • FullText(HTML)
    • References (16)
  • [1]
    NABIGHIAN M N. Quasi-static transient response of a conducting half-space—An approximate representation[J]. Geophysics,1979,44(10):1700-1705.
    [2]
    闫述,陈明生,傅君眉. 瞬变电磁场的直接时域数值分析[J]. 地球物理学报,2002,45(2):275-284.

    YAN Shu,CHEN Mingsheng,FU Junmei. Direct time-domain numerical analysis of transient electromagnetic field[J]. Chinese Journal of Geophysics,2002,45(2):275-284.
    [3]
    SPIES B R. Depth of investigation in electromagnetic sounding methods[J]. Geophysics,1989,54(7):872-888.
    [4]
    COLLIN R E,ZUCKER F J. Antenna Theopry, Vol Ⅱ[M]. Chater 24,New York:McGraw-Hill,1969.
    [5]
    彭仲秋. 瞬变电磁场[M]. 北京:高等教育出版社,1989.
    [6]
    白登海,MAXWELL M. 瞬变电磁法中两种关断电流对响应函数的影响及其应对策略[J]. 地震地质,2001,23(2):245-251.

    BAI Denghai,MAXWELL M. The effect of two types of turn off current on TEM response function and coping strategies[J]. Seismic Geology,2001,23(2):245-251.
    [7]
    杨云见,王绪本,何展翔. 瞬变电磁法中的斜阶跃波效应及常规的几种校正方法分析[J]. 物探化探计算技术,2006,28(2):129-132.

    YANG Yunjian,WANG Xuben,HE Zhanxiang. The discussion of ramp time effect and conventional several correction method of transient electromagnetic method[J]. Computing Techniques for Geophysical and Geochemical Exploration,2006,28(2):129-132.
    [8]
    闫述,傅君眉,李正斌. 瞬变电磁法探测地下洞体的有效性[J]. 煤田地质与勘探,1999,27(2):64-68.

    YAN Shu,FU Junmei,LI Zhengbin. The effectiveness of the transient electromagnetic method to detect the underground cave[J]. Coal Geology & Exploration,1999,27(2):64-68.
    [9]
    姚治龙,王庆乙,胡玉平,等. 利用TEM测深校正MT静态偏移的技术问题[J]. 地震地质,2001,23(2):257-263.

    YAO Zhilong,WANG Qingyi,HU Yuping,et al. The technical problems of using TEM sounding to correct MT static shift[J]. Seismic Geology,2001,23(2):257-263.
    [10]
    MAXWELL A M. Joint inversion of TEM and distorted MT soundings:Some effective practical considerations[J]. Geophysics,1996,61(1):56-65.
    [11]
    MAXWELL A M. A method of transient electromagnetic data analysis[J]. Geophysics,1998,63(2):405-410.
    [12]
    QIAN S,CHEN D. Joint Time-Frequency Analysis[M]. New York:Prentice-Hall,1996:109-132.
    [13]
    闫述,陈明生. 瞬变电磁场资料的联合时-频分析解释[J]. 地球物理学报,2005,48(1):203-208.

    YAN Shu,CHEN Mingsheng. Joint time-frequency analysis of transient electromagnetic field data[J]. Chinese Journal of Geophysics,2005,48(1):203-208.
    [14]
    陈明生,闫述. 论频率测深应用中的几个问题[M]. 北京:地质出版社,1995.
    [15]
    闫述,石显新,陈明生. 瞬变电磁法的探测深度问题[J]. 地球物理学报,2009,52(6):1583-1591.

    YAN Shu,SHI Xianxin,CHEN Mingsheng. The probing depth of transient eletromagnetic field method[J]. Chinese Journal of Geophysics,2009,52(6):1583-1591.
    [16]
    陈本池. 瞬变电磁场波场变换与偏移成像理论研究[D]. 北京:中国地质大学(北京),1998.
    • Related Articles

  • Related Articles

    [1]ZHOU Xianjun, LI Guofu, LI Chao, WANG Zheng, LI Jiangbiao. Ground development technology and engineering application of CBM in coal mine goafs： A case study of Jincheng mining area in Qinshui Basin[J]. COAL GEOLOGY & EXPLORATION, 2022, 50(5): 66-72. DOI: 10.12363/issn.1001-1986.21.09.0533
    [2]FANG Liangcai, LI Guihong, LI Dandan, LI Haozhe, LIU Jia. Analysis on the CBM extraction effect of the horizontal wells in the coal seam roof in Luling coal mine in Huaibei[J]. COAL GEOLOGY & EXPLORATION, 2020, 48(6): 155-160,169. DOI: 10.3969/j.issn.1001-1986.2020.06.021
    [3]XIN Kai, JI Changjiang, XIAO Chun. Characteristics and monitoring method of the trajectory of the radial CBM well[J]. COAL GEOLOGY & EXPLORATION, 2020, 48(6): 130-137. DOI: 10.3969/j.issn.1001-1986.2020.06.018
    [4]ZHOU Jiajia. Technology and application of indirect fracturing in CBM vertical well of broken and soft coal seam with low permeability[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(4): 6-11. DOI: 10.3969/j.issn.1001-1986.2019.04.002
    [5]BAI Gang, ZHOU Xihua, WEI Shiping, FAN Chaojun, LI Xueming. Simulation and test of enhancement of gas drainage through CO2 injection into coal seam of low permeability[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(3): 77-84. DOI: 10.3969/j.issn.1001-1986.2019.03.013
    [6]YIN Shangxian, ZHANG Xiangwei, XU Hui, LIU Ming, XU Bin. Optimization of permeability coefficient and aquifer thickness in large-well-method[J]. COAL GEOLOGY & EXPLORATION, 2015, 43(5): 53-56. DOI: 10.3969/j.issn.1001-1986.2015.05.013
    [7]ZHANG Fengdong. Injection/fall off test for comparative analysis of permeability of coal bed methane open and casing wells[J]. COAL GEOLOGY & EXPLORATION, 2010, 38(3): 20-23. DOI: 10.3969/j.issn.1001-1986.2010.03.005
    [8]YANG Xiu-chun, LI Ming-zhai. Dynamic parameters of CBM well drainage and relationship among them[J]. COAL GEOLOGY & EXPLORATION, 2008, 36(2): 19-23,27.
    [9]CHEN Zhi-sheng, LIAN You-xuan. Discussion on technical problems for injection/fall-off well test in the coalbed methane well[J]. COAL GEOLOGY & EXPLORATION, 2003, 31(4): 23-26.
    [10]Tang Shuheng. DESIGN OF COAL BED METHANE WELL TEST[J]. COAL GEOLOGY & EXPLORATION, 1999, 27(2): 29-31,28.

Catalog

    Get Citation
    PDF
    XML

    Article Metrics

    Article views (173) PDF downloads (40) Cited by()
    Related

    Copyright of website design © Editorial Office of Coal Geology & Exploration 陕ICP备05001372号-6 陕公网安备 61019002002193号

    Address: Editorial Office of Coal Geology & Exploration, No.82 Jinye 1st Rd, High-Tech Zone, Xi'an City, Shaanxi, China

    Tel: 029-81778075 E-mail: ccrimtdzykt@vip.163.com

    Supported by: Beijing Renhe Information Technology Co., Ltd.  Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return