Journal of Jilin University(Earth Science Edition) ›› 2015, Vol. 45 ›› Issue (6): 1839-1845.doi: 10.13278/j.cnki.jjuese.201506301

Previous Articles     Next Articles

Conductivity-Depth Imaging of Fixed-Wing Airborne Electromagnetic Data

Zhu Kaiguang, Li Bingbing, Wang Lingqun, Xie Bin, Wang Qi, Cheng Yuqi   

  1. College of Instrumentation and Electrical Engineering, Jilin University, Changchun 130026, China
  • Received:2015-02-08 Published:2015-11-26

Abstract:

The traditional fixed-wing airborne electromagnetic survey lost multi-component measurement information for the reason of using the total field as the data base for the conductivity depth imaging. The imaging precision is decreased due to the non-uniqueness of the dB/dt. A joint conductivity depth imaging approach based on the lookup method of two-component B field response is proposed. Based on the fixed-wing electromagnetic forward calculation, this paper establishes a table of Bx-Bz-conductivity-altitude, uses B field to avoid the uncertainty of conductivity due to the binary value of electromagnetic data, uses the joint lookup method of two-component B field and interpolation algorithm to determine the conductivity, and then takes the advantage of the diffusion depth formula to obtain the depth, and finally to process the joint conductivity depth imaging. Compared to the total field and simple component lookup method applied in the one-dimensional and quasi-two-dimensional forward simulation, the CDI of two-component B field gets more ideal fitting effects; and the imaging precision is improved by 7%.

Key words: fixed-wing airborne electromagnetic, lookup method of two-component magnetic field, joint conductivity-depth imaging, diffusion depth

CLC Number: 

  • P631.3

[1] Fountain D. Airborne Electromagnetic Systems:50 Years of Development[J]. Exploration Geophysics, 1998, 29(2): 1-11.

[2] Annan A P.Effect of Differential Transmitter/Receiver Motion on Airborne Transient EM Interpretation[J]. Geophysics, 1999, 49(1): 670-670.

[3] 胡平, 李文杰, 李军峰, 等.固定翼时间域航空电磁勘查系统研发进展[J]. 地球学报,2012, 33(1): 7-12. Hu Ping, Li Wenjie, Li Junfeng, et al. The Advances in the Development of Fixed-Wing Airborne Time-Domain Electromagnetic System[J]. Acta Geoscientica Sinica, 2012, 33(1): 7-12.

[4] Macnae J C, Smith R, Polzer B D, et al. Conductivity-Depth Imaging of Airborne Electromagnetic Step-Response Data[J]. Geophysics, 1991, 56(1): 102-114.

[5] 嵇艳鞠, 冯雪, 于明媚, 等.基于多元线性回归的HTEM三维异常体电导率-深度识别[J]. 吉林大学学报:地球科学版,2014, 44(5), 1687-1694. Ji Yanju, Feng Xue, Yu Mingmei, et al. Conductivity-Depth Identification of HTEM 3D Anomalies Based on Multiple Linear Regression[J]. Journal of Jilin University: Earth Science Edition, 2014, 44(5), 1687-1694.

[6] Liu G, Asten M. Conductance-Depth Imaging of Airborne TEM data[J]. Exploration Geophysics,1994, 24(4): 655-662.

[7] Wolfgram P, Karlik G. Conductivity-Depth Transform of GEOTEM Data[J]. Exploration Geophysics, 1995, 26(2/3): 179-185.

[8] Huang H, Rudd J. Conductivity-Depth Imaging of Helicopter-Borne TEM Data Based on a Pseudolayer Half-Space Model[J]. Geophysics, 2008,73(3): 115-120.

[9] 朱凯光, 林君, 韩悦慧, 等.基于神经网络的时间域直升机电磁数据电导率深度成像[J]. 地球物理学报,2010, 53(3): 743-750. Zhu Kaiguang, Lin Jun, Han Yuehui, et al. Research on Conductivity Depth Imaging of Time Domain Helicopter-Borne Electromagnetic Data Based on Neural Network[J]. Chinese Journal of Geophysics, 2010, 53(3): 743-750.

[10] 陈小红, 段奶军.时间域航空电磁快速成像研究[J]. 地球物理学进展, 2012,27(5): 2123-2127. Chen Xiaohong, Duan Naijun. Study on Fast Imaging of Airborne Time-Domain Electromagnetic Data[J]. Progress in Geophys., 2012, 27(5): 2123-2127.

[11] 毛立峰.中心回线式直升机TEM资料的电导率-深度成像方法[J]. CT 理论与应用研究, 2013,22(3): 429-437. Mao Lifeng. Conductivity-Depth Imaging Algorithm for Central-Loop Helicopter TEM[J]. CT Theory and Applications, 2013, 22(3): 429-437.

[12] Smith R S, Keating P B. The Usefulness of Multicomponent, Time-Domain Airborne Electromagnetic Measurements[J]. Geophysics, 1996, 61(1): 74-81.

[13] 席振铢, 刘剑, 龙霞, 等.瞬变电磁法三分量测量方法研究[J]. 中南大学学报:自然科学版,2010,41(1):272-276. Xi Zhenzhu, Liu Jian, Long Xia, et al.Three-Component Measurement in Transient Electromagnetic Method[J]. Journal of Central South University: Science and Technology, 2010, 41(1): 272-276.

[14] 张莹莹.水平电偶源地空系统瞬变电磁法多分量解释技术及全域视电阻率定义研究[D]. 西安: 长安大学,2013. Zhang Yingying. Study on Multi-Component Interpretation and Full Field Apparat Resistivity Definition of Semi-Airborne Transient Electromagnetic Method with Electric Dipole on the Surface[D]. Xi'an: Chang'an University, 2013.

[15] 王琦, 林君, 于生宝, 等. 固定翼航空电磁系统的线圈姿态及吊舱摆动影响研究与校正[J]. 地球物理学报,2013,56(11):3741-3750. Wang Qi, Lin Jun, Yu Shengbao, et al. Study on Influence and Correction of Coil Attitude and Bird Swing for Fixed-Wing Time-Domain Electromagnetic System[J]. Chinese Journal of Geophysics, 2013, 56(11):3741-3750.

[16] Huang H. Locating Good Conductors by Using the B-Field Integrated From Partial dB/dt Waveforms of Time-Domain EM Systems[C]. SEG/San Antonio Annual Meeting. San Antonio: SEG, 2007: 688-692.

[17] Wait J R. Geo-Electromagnetism[M]. [S.l.]: Academic Press Inc,1982.

[18] Guptasarma D, Singh B. New Digital Linear Filters for Hankel J0 and J1 Transforms[J]. Geophysical Prospecting, 1997, 45(5): 745-762.

[19] Guptasarma D, Singh B. Computation of the Time-Domain Response of a Polarizable Ground[J]. Geophysics, 1982, 47(11): 953-963.

[20] Wolfgram P, Karlik G. Conductivity-Depth Transform of GEOTEM Data[J].Exploration Geophysics, 1995, 26(3): 179-185.

[21] Vrbancich J, Fullagar P K, Macnae J. Bathymetry and Seafloor Mapping via One Dimensional Inversion and Conductivity Depth Imaging of AEM[J]. Exploration Geophysics, 2000,31(4): 603-610.

[22] 马铭遥.时间域航空电磁数据全波成像与处理技术研究[D]. 长春: 吉林大学,2013. Ma Mingyao. Study on Full-Waveform Imaging and Processing of Time-Domain Airborne Electromagnetic Data[D]. Changchun: Jilin University, 2013.

[1] Zhu Kaiguang, Wang Hao, Peng Cong, Zhang Qiong, Fan Tianjiao, Jing Chunyang. Attitude Correction of Fixed-Wing Airborne Electromagnetic Coil Based on BP Neural Network [J]. Journal of Jilin University(Earth Science Edition), 2020, 50(1): 252-260.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] You Minxin,Liu Jianmin. Application Status and Progress of Isotopic Geochemistry in Research of Emeishan Large Igneous Province (ELIP)[J]. Journal of Jilin University(Earth Science Edition), 2014, 44(4): 1231 -1243 .
[2] YANG Chun-mei, LI Hong-qi,LU Da-wei,ZHANG Fang-li,GAO Yuan,SHAO Ying-chao. The Relationship Between Rock Resistivity and Water Saturation in WaterDriveOil and OilDriveWater Process[J]. J4, 2005, 35(05): 667 -671 .
[3] ZHU Hong-chen,ZHANG Jiong-fei,QUAN Heng. Two Stages of Mesozoic Lithogenesis and Mineralization in Daxing’anling Mountains[J]. J4, 2005, 35(04): 436 -0442 .
[4] ZHU Jian-wei, ZHAO Gang, LIU Bo, GUO Wei, CHENG Jun. Identification Technology and It’s Application of Well-Logging About Oil Shale[J]. J4, 2012, 42(2): 289 -295 .
[5] CHEN Li, LIANG Hai-an,ZHANG Wen-juan,RONG Fan. Application of Fuzzy Mathematics in Division of Engineering Geo-Environment of Cities-An Example of Fushun City[J]. J4, 2008, 38(5): 837 -0840 .
[6] GAO Gui-mei,SU Ke,WANG Wen-ying,GAN Shu-cai,LIU Zhao-jun. Study on Rare Earth and Trace Elements in Oil Shale Samples, Huadian, Jilin Province[J]. J4, 2006, 36(6): 974 -0979 .
[7] WU Kong-yun,JIANG Zhong-cheng,YE Ye. Influence of Different Plant Communities On Erosion Rates of Limestone Rock Blocks[J]. J4, 2007, 37(5): 967 -0971 .
[8] ZHOU Yan-zhang, CHI Bao-ming, LIU Zhong-pei. Mode of Structural Control about Groundwater Pour-in Mechanism in Xiadian Gold Deposits in Shandong Province[J]. J4, 2008, 38(2): 255 -0260 .
[9] ZHANG Yuan, LIU Lian-deng,SUN Jing-gui,CHEN Guo-hua,ZHANG Hong-xi,YAN Fu-chuan, YANG Kai-chun. Two Phase Overprinting Mineralization in Huangbuling Gold Deposit in Northwestern Jiaodong Peninsula[J]. J4, 2008, 38(1): 21 -0026 .
[10] LU Cheng-peng, SHU Long-cang, YUAN Li-bo, ZHANG Rong-rong, HUANG Bi-juan, WANG Bin-bin. Determination of Hydrogeologic Parameters of Karst Aquifer Based on Tracer Test[J]. J4, 2009, 39(4): 717 -721 .