多辐射场源地空瞬变电磁一维反演方法研究

doi:10.11720/wtyht.2019.1279

摘要
图/表
参考文献
相关文章
Metrics

全文: PDF(3970 KB) HTML
输出: BibTeX | EndNote (RIS)

摘要

地空瞬变电磁法融合了地面与航空瞬变电磁的方法原理与观测模式,将发射源置于地表,并利用航空器在空中接收响应信号。因此,地空瞬变电磁法同时具有地面装置大测深、高信噪的优势以及航空装置中采集高效的优势。先有研究偏重于单一辐射源,忽略了多辐射场源在勘探深度与信噪比上的优势。因此需要研究适用于多辐射场源地空装置的数据解释方法。在解决多辐射场源地空瞬变电磁正演问题之后,以Occam反演理论为基础,对多辐射场源地空瞬变电磁一维反演进行研究。首先要构建目标函数,本文通过引入拉格朗日乘子,将数据拟合差及模型粗糙度组合起来进而构建目标函数;其次解决灵敏度矩阵的构建问题。模型计算结果表明本文多辐射场源地空瞬变电磁法一维反演算法的有效性,可为三维反演与精细解释提供良好的基础。通过对典型模型的反演计算,从其理论模型及反演结果的对比可以看出,Occam反演方法可以应用到多辐射场源地空瞬变电磁系统中,为多辐射场源地空瞬变电磁解释增加了新途径。

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	赵涵
	景旭
	李貅
	刘文韬

关键词 ：多辐射场源, 地空瞬变电磁法, Occam反演方法

Abstract：

The ground-airborne transient electromagnetic method combines the principle and observation mode of ground and air transient electromagnetic survey, places the emission source on the surface, and uses the aircraft to receive the response signal in the air. Therefore, the ground-airborne transient electromagnetic method has the advantages of large sounding depth of the ground device, high signal-to-noise ratio and high efficiency of aviation equipment acquisition. Previous studies have focused on a single source of radiation, ignoring the advantages of multi-radiation field sources in exploration depth and signal-to-noise ratio. Therefore, it is necessary to study the data interpretation method applicable to the ground device of the multi-radiation field source. After solving the problem of the ground-airborne transient electromagnetic forward modeling and on the basis of the principle of Occam inversion, the authors studied one-dimensional inversion of multi-source ground-airborne transient electromagnetic survey. First of all, the important problem is the construction of objective function, and the objective function is constituted by the misfit and model roughness by introducing the Lagrange multiplier. Secondly, the problem of the construction of the sensitivity matrix is solved. The model calculation results show 1D Inversion of Multi-source Ground-airborne Transient Electromagnetic Method is effective, which can provide a good foundation and fine interpretation for three-dimensional inversion and fine interpretation. Through the inversion calculation of the typical model, it can be seen from the comparative study of its theoretical model and inversion results that the Occam inversion method can be applied to the Multi-source Ground-airborne Transient Electromagnetic Method, and adds a new approach to the interpretation of the Multi-source Ground-airborne TEM.

Key words： multi-source ground-airborne transient electromagentic method Occam inversion method

收稿日期: 2018-07-18 出版日期: 2019-02-20

P631

基金资助:国家自然科学基金重点项目(41830101);国家自然科学基金项目(41704108)

通讯作者: 李貅

作者简介: 赵涵(1995-),女,长安大学硕士,研究方向为瞬变电磁探测。

引用本文:

赵涵, 景旭, 李貅, 刘文韬. 多辐射场源地空瞬变电磁一维反演方法研究[J]. 物探与化探, 2019, 43(1): 132-142.
Han ZHAO, Xu JING, Xiu LI, Wen-Tao LIU. A study of 1D inversion of multi-source ground-airborne transient electromagnetic method. Geophysical and Geochemical Exploration, 2019, 43(1): 132-142.

链接本文:

https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2019.1279 或 https://www.wutanyuhuatan.com/CN/Y2019/V43/I1/132

Fig.1 单辐射场源剖分俯视图

Fig.2 层状大地地表电偶极子坐标系示意

Fig.3 多辐射场源所在坐标系俯视图

Fig.4 场源及接收点的位置示意

Fig.5 A型模型示意图及反演结果对比

Fig.6 Q型模型示意图及反演结果对比

Fig.7 KH型模型示意及结果对比

Fig.8 HK型模型示意及结果对比

Fig.9 五层模型示意及结果对比

[1]	滕吉文 . 地球深部物质和能量交换的动力过程与矿产资源的形成[J]. 大地构造与成矿学, 2003,27(1):3-21. doi: 10.3969/j.issn.1001-1552.2003.01.002
[1]	Teng J W . The dynamic process of material and energy exchange and the formation of mineral resources in deep earth[J]. Geotectonics and Metallogenesis, 2003,27(1):3-21.
[2]	邓军, 杨立强, 葛良胜 , 等. 胶东矿集区形成的构造体制研究进展[J]. 自然科学进展, 2006,16(5):513-518. doi: 10.3321/j.issn:1002-008X.2006.05.001
[2]	Deng J, Yang L Q, Ge L S , et al. Research progress on the tectonic system formed in the Jiaodong ore concentration area[J]. Advances in Natural Science, 2006,16(5):513-518.
[3]	滕吉文, 杨立强, 刘洪臣 , 等. 岩石圈内部第二深度空间金属矿产资源形成与集聚的深层动力学响应[J]. 地球物理学报, 2009,52(7):1734-1756. doi: 10.3969/j.issn.0001-5733.2009.07.008
[3]	Teng J W, Yang L Q, Liu H C , et al. Deep dynamic response of metal mineral resources formation and accumulation in the second deep space of the lithosphere[J]. Chinese Journal of Geophysics, 2009,52(7):1734-1756.
[4]	刘光鼎, 郝天珧, 刘伊克 . 中国大地构造宏观格架及其与矿产资源的关系[J]. 科学通报, 1997,42(2):113-118.
[4]	Liu G D, Hao T Q, Liu Y K . The macroscopic framework of China's geotectonics and its relationship with mineral resources[J]. Chinese Science Bulletin, 1997,42(2):113-118.
[5]	Nabighian M N . Electromagnetic methods in applied geophysics-theory (Volume 1)[M]. Tulsa OK: Society of Exploration, 1988, 217-231.
[6]	Elliott P . New airborne electromagnetic method provides fast deep-target data turnaround[J].The Leading Edge,1996(4):309-310.
[7]	Smith R S, Annan P, McGowan P D . A comparison of data from airborne, semi-airborne, and ground electromagnetic systems[J]. Geophysics, 2001,66(5):1379-1385. doi: 10.1190/1.1487084
[8]	张莹莹, 李貅, 姚伟华 , 等. 多辐射场源地空瞬变电磁法多分量全域视电阻率定义[J]. 地球物理学报, 2015,58(8):2745-2758. doi: 10.6038/cjg20150811
[8]	Zhang Y Y, Li X, Yao W H , et al. Determination of apparent resistivity of multi-component global TEM in multi-radiation field[J]. Chinese Journal of Geophysics, 2015,58(8):2745-2758.
[9]	李貅, 张莹莹, 卢绪山 , 等. 电性源瞬变电磁地空逆合成孔径成像[J]. 地球物理学报, 2015,58(1):277-288. doi: 10.6038/cjg20150125
[9]	Li X, Zhang Y Y, Lu X S , et al. Simulation of transient aperture-inverse synthetic aperture imaging of electrical source transients[J]. Chinese Journal of Geophysics, 2015,58(1):277-288.
[10]	张莹莹, 李貅, 李佳 , 等. 多辐射场源地空瞬变电磁法快速成像方法研究[J]. 地球物理学进展, 2016,31(2):869-876.
[10]	Zhang Y Y, Li X, Li J , et al. Fast imaging method of ground-to-air transient electromagnetic method for multi-radiation field source[J]. Progress in Geophysics, 2016,31(2):869-876.
[11]	翁爱华 . Occam反演及其在瞬变电磁测深中的应用[J]. 地质与勘探, 2007,43(5):74-76. doi: 10.3969/j.issn.0495-5331.2007.05.014
[11]	Weng A H . Occam inversion and its application in transient electromagnetic sounding[J]. Geology and exploration, 2007,43(5):74-76.
[12]	杨文采 . 非线性地震道的混沌反演——Ⅱ.关于Lyapunov指数和吸引子[J]. 地球物理学报, 1993,36(3):376-387. doi:
[12]	Yang W C . Chaotic inversion of nonlinear seismic traces—II.on Lyapunov exponents and attractors[J]. Chinese Journal of Geophysics, 1993,36(3):376-387.
[13]	江玉乐, 雷宛 . 地球物理数据处理教程[M]. 北京: 地质出版社, 2006.
[13]	Jiang Y L, Lei W. Geophysical data processing course[M]. Beijing: Geological Publishing House, 2006.
[14]	朴化荣 . 电磁测深法原理[M]. 北京: 地质出版社, 1990:83- 101, 112-126.
[14]	Piao H R. Principles of electromagnetic sounding[M]. Beijing: Geological Publishing House, 1990:83- 101, 112-126.
[15]	Kaufman A A, Keller G V. 频率域和时间域电磁测深[M]. 王建谋, 译.北京:地质出版社, 1987:153- 194, 257-279.
[15]	Kaufman A A, Keller G V. Frequency and transient soundings(in Chinaese)[M].Translated by Wang J M. Beijing: Geological Publishing House, 1987:153- 194, 257-279.
[16]	李貅 . 瞬变电测深的理论与应用[M]. 西安: 陕西科学技术出版社, 2002:49- 51, 79-82.
[16]	Li X. Theory and application of transient electrical sounding[M]. Xi'an: Shaanxi Science and Technology Press, 2002:49- 51, 79-82.
[17]	方文藻, 李予国, 李貅 . 瞬变电磁测深法原理[M]. 西安: 西北大学工业出版社, 1993.
[17]	Fang W Z, Li Y G, Li X. Principle of transient electromagnetic sounding [M]. Xi'an: Northwestern University Industrial Press, 1993.
[18]	何继善 . 广域电磁法和伪随机信号电法[M]. 北京: 高等教育出版社, 2010: 77-88.
[18]	He J S. Wide-area electromagnetic method and pseudo-random signal electrical method[M]. Beijing: Higher Education Press, 2010: 77-88.
[19]	王华军 . 正余弦变换的数值滤波算法[J]. 工程地球物理学报, 2004,1(4):329-335. doi: 10.3969/j.issn.1672-7940.2004.04.008
[19]	Wang H J . Numerical screening algorithm for several cross-forming transformation[J]. Journal of engineering geophysics, 2004,1(4):329-335.
[20]	李永兴, 强健科, 汤井田 . 航空瞬变电磁一维正反演研究[J]. 地球地球物理学报, 2010,53(3):751-759. doi: 10.3969/j.issn.0001-5733.2010.03.031
[20]	Li Y X, Qian J K, Tang J T . Study on one-dimensional forward and inversion of aeronautical transient electromagnetic method[J]. Chinese Journal of Geophysics, 2010,53(3):751-759.
[21]	毛立峰, 王绪本, 陈斌 . 直升机航空瞬变电磁自适应正则化一维反演方法研究[J]. 地球物理学进展, 2011,26(1):300-305. doi: 10.3969/j.issn.1004-2903.2011.01.035
[21]	Mao L F, Wang X B, Chen B . Study on one-dimensional inversion method of helicopter aviation transient electromagnetic adaptive regularization[J]. Progress in Geophysics, 2011,26(1):300-305.
[22]	Constable B S C, Parker R L, Constable C G. Occam’s inversion: A practical algorithm for generating smooth model from electromagnetic sounding data [C]// Geophysics. 1987.
[23]	吴小平 . 大地电磁数据的Occam反演改进[J]. 地球物理学报, 1998,41(4):547-554. doi:
[23]	Wu X P . Improvement of Occam inversion of magnetotelluric data[J]. Chinese Journal of Geophysics, 1998,41(4):547-554.
[24]	周道卿, 谭捍东, 王卫平 . 频率域航空电磁资料Occam反演研究[J]. 物探与化探, 2006,30(2):162-165. doi: 10.3969/j.issn.1000-8918.2006.02.016
[24]	Zhou D Q, Tan H D, Wang W P . Occam inversion of aeronautical electromagnetic data in frequency domain[J]. Geophysical and Geochemical Exploration, 2006,30(2):162-165.
[25]	何梅兴, 胡祥云, 叶益信 , 等. 2.5维可控源音频大地电磁法Occam反演理论及应用[J]. 地球物理学进展, 2011,26(6):2163-2170. doi: 10.3969/j.issn.1004-2903.2011.06.033
[25]	He M X, Hu X Y, Ye Y X , et al. Occam inversion theory and application of 2.5D controllable source audio magnetotelluric method[J]. Progress in Geophysics, 2011,26(6):2163-2170.
[26]	刘方镝 . 海洋可控源电磁法一维正演与Occam反演研究[D]. 成都:成都理工大学, 2012.
[26]	Liu F D . 1D direct problem and Occam inversion of ocean controlled source electromagnetic method[D]. Chengdu: Chengdu University of Technology, 2012.
[27]	张君涛, 周军, 王绪本 , 等. 一维大地电磁Occam反演拉格朗日乘子的搜索[J]. 物探化探计算技术,2015(6):687-692. doi: 10.3969/j.issn.1001-1749.2015.06.03
[27]	Zhang J T, Zhou J, Wang X B , et al. Search of one-dimensional magnetotelluric Occam inversion of Lagrange multiplier[J]. Computing Techniques For Geophysical and Geochemical Exploration, 2015,37(6):687-692.
[28]	陈小斌, 赵国泽, 汤吉 , 等. 大地电磁自适应正则化反演算法[J]. 地球物理学报, 2005,48(4):937-946. doi: 10.3321/j.issn:0001-5733.2005.04.029
[28]	Chen X B, Zhao G Z, Tang J , et al. Magneto-electromagnetic adaptive regularization inversion algorithm[J]. Chinese Journal of Geophysics, 2005,48(4):937-946.

[1]	张莹莹. 多辐射场源半航空瞬变电磁法多分量响应特征分析[J]. 物探与化探, 2021, 45(1): 102-113.

Viewed

Full text

Abstract

Cited

Shared

Discussed