复杂异常体模型下的三维MT倾子正演模拟

doi:10.11720/wtyht.2021.1459

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摘要

倾子对地下构造的电性不均匀性反映较灵敏,在大地电磁资料解释中可作为复杂构造的表征。本文在三维大地电磁有限元正演模拟的基础上,根据倾子定义推导出三维倾子计算公式,构建复杂异常体模型进行三维倾子正演模拟。研究表明针对多个异常体模型,倾子的各个分量均能反映出异常体的空间位置,倾子不仅能准确地反映出单个异常体的边界,且对多个异常体的边界反映也较准确,其中对低阻异常体反映较高阻异常体敏感,由此进一步了解了三维倾子资料特征和规律,为倾子资料的应用提供了理论依据。

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	田郁
	乐彪

关键词 ：大地电磁测深法, 倾子, 三维正演模拟, 复杂异常体模型

Abstract：

Tipper is very sensitive to the lateral inhomogeneity of the geoelectric structure and can be used to characterize the complex structure. In this paper, based on the three-dimensional complex anomalous body model of magnetotelluric sounding, the formula for calculating the three-dimensional tipper is derived according to the definition of the dump, and three-dimensional anomalous volume models with different combinations are constructed for forward modeling. Forward modeling studies show that the tipper data better reflect the abnormal body boundary, and it is also more accurate to reflect the boundary of several abnormal bodies, whereas the low resistivity body sensitively reflects a high resistance abnormal body. The study of tipper data further explains the characteristics and laws of tipper data and provides a theoretical basis for the application of tipper data.

Key words： magnetotelluric tipper three-dimensional forward combined anomalous body model

收稿日期: 2020-09-25 修回日期: 2021-02-01 出版日期: 2021-08-20

ZTFLH:

P631

基金资助:贵州省地质矿产勘查开发局地质科研项目“大地电磁倾子特征研究及其在地球物理解释中的应用”(黔地矿科合[2020]28);贵州省地质物探开发应用工程技术研究中心项目(黔科合[2016]平台人才 5401)

通讯作者: 乐彪

作者简介: 田郁(1991-),女,硕士研究生,研究方向为电磁法勘探及资料处理。Email: 873885918@qq.com

引用本文:

田郁, 乐彪. 复杂异常体模型下的三维MT倾子正演模拟[J]. 物探与化探, 2021, 45(4): 1021-1029.
TIAN Yu, YUE Biao. Forward modeling of MT tipper based on 3D complex anomalous body model. Geophysical and Geochemical Exploration, 2021, 45(4): 1021-1029.

链接本文:

https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2021.1459 或 https://www.wutanyuhuatan.com/CN/Y2021/V45/I4/1021

Fig.1 三维低阻异常体模型在不同平面的示意

Fig.2 低阻异常体模型倾子响应在F=0.1 Hz的XY平面的切片

Fig.3 低阻异常体模型倾子响应在F=0.1 Hz的XZ平面的切片

Fig.4 低阻异常体模型倾子响应在F=0.1 Hz的YZ平面的切片

Fig.5 三维左右组合异常体模型在不同平面的示意

Fig.6 左右组合异常体模型倾子响应在F=0.1 Hz的XY平面的切片

Fig.7 左右组合异常体模型倾子响应在F=0.1 Hz的XZ平面的切片

Fig.8 左右组合异常体模型倾子响应在F=0.1 Hz的YZ平面的切片

Fig.9 三维上下组合异常体模型在不同平面的示意

Fig.10 上下组合异常体模型倾子响应在F=0.1 Hz的XY平面的切片

Fig.11 下组合异常体模型倾子响应在F=0.1 Hz的XZ平面的切片

Fig.12 上下组合异常体模型倾子响应在F=0.1 Hz的YZ平面的切片

[1]	王家映. 我国大地电磁测深研究新进展[J]. 地球物理学报, 1997,40(s):206-216.
[1]	Wang J Y. New development of magnetotelluric sounding in China[J]. Acta Geophysica Sinica, 1997,40(s):206-216.
[2]	刘光鼎. 论地球科学[J]. 地学前缘, 1998,5(1):1-8.
[2]	Liu G D. Discussion on earth sciences[J]. Earth Science Frontiers, 1998,5(1):1-8.
[3]	陈乐寿. 大地电磁测深资料处理与解释[M]. 北京: 石油工业出版社, 1989.
[3]	Chen L S. The processing and interpretation of the earth electromagnetic sounding data[M]. Beijing: Petroleum Industry Press, 1989.
[4]	陈乐寿, 王光锷. 大地电磁测深法[M]. 北京: 地质出版社, 1990.
[4]	Chen L S, Wang G E. Magnetotelluric sounding[M]. Beijing: Geology Press, 1990.
[5]	Vozoff K. The magnetotelluric method in the explortion of sedimentary basins[J]. Geophysics, 1972,37(1):98-141.
[6]	胡文宝, 苏朱刘, 陈清礼. 倾子资料的特征及应用[J]. 石油地球物理勘探, 1997,32(2):202-213.
[6]	Hu W B, Su Z L, Chen Q L. Character of tipper data and the application[J]. Oil Geophysical Prospecting, 1997,32(2):202-213.
[7]	Ledo J, Gabas A, Marcuello A. Static shift leveling using geomagnetic transfer functions[J]. Earth Planets Space, 2002,54(5):493-498.
[8]	徐凌华, 甘佳雄, 柳建新, 等. MT倾子响应的影响因素分析[J]. 物探化探计算技术, 2013,35(4):430-437 .
[8]	Xu L H, Gan J X, Liu J X, et al. The analysis of influence factors of MT tipper response[J]. Computing Techniques for Geophysical and Geochemical Exploration, 2013,35(4):430-437.
[9]	Berdichevsky M N, Dmitriev V I, Golubtsova N S, et al. Magnetovariational sounding: New possibilities, lzvestiya[J]. Physics of the Solid Earth, 2003,39(1):701-727.
[10]	陈清礼, 胡文宝, 李金铭, 等. 埋藏球体的倾子响应特征分析[J]. 石油天然气学报, 2007,29(3):75-78.
[10]	Chen Q L, Hu W B, Li J M, et al. Characteristics of tipper response of buried sphere[J]. Journal of Oil and Gas Technology, 2007,29(3):75-78.
[11]	于鹏, 吴健生, 王家林, 等. 利用长周期MT数据研究沪浙地区深部断裂结构[J]. 同济大学学报:自然科学版, 2008,36(4):127-132.
[11]	Yu P, Wu J S, Wang J L, et al. Long period magnetotelluric data baesd study on deep fault structure in Shanghai and Zhejiang Area[J]. Journal of Tongji University:Natural science, 2008,36(4):127-132.
[12]	柳建新, 甘佳雄, 童孝忠, 等. 板状体MT倾子响应的二维有限元模拟与定性分析[J]. 物探化探计算技术, 2012,34(5):541-547.
[12]	Liu J X, Gan J X, Tong X Z, et al. Finite element simulation and qualitative analysis two-dimensional MT tipper response of tabular body[J]. Computing Techniques for Geophysical and Geochemical Exploration, 2012,34(5):541-547.
[13]	余年, 王绪本, 阚瑷珂, 等. 倾子和视倾子的研究及在断裂解释中的应用[J]. 工程地球物理学报, 2007,4(4):275-281.
[13]	Yu N, Wang X B, Kan A K, et al. The study of tipper and apparent tipper and its application in fracture interpretation[J]. Journal of Engineering Geophysics, 2007,4(4):275-281.
[14]	吴頔, 严家斌, 贺文根. 倾子对异常体的分辨能力及影响因素研究[J]. 地球物理学进展, 2012,27(6):2656-2663.
[14]	Wu D, Yan J B, He W G. Study on distinguishing to anomalous bodies by tipper & influencing factor of tipper[J]. Progress in Geophysics, 2012,27(6):2656-2663.
[15]	田郁, 胡祥云, 乐彪. 倾子在地球物理断裂构造解释中的应用[J]. 物探与化探, 2018,42(6):1237-1244.
[15]	Tian Y, Hu X Y, Yue B. The application of tipper to geophysical fault interpretation[J]. Geophysical and Geochemical Exploration, 2018,42(6):1237-1244.
[16]	潘伟, 肖晓, 王永明. 倾子资料特征分析研究[J]. 地球物理学进展, 2015,30(6):2741-2748.
[16]	Pan W, Xiao X, Wang Y M. Research on the character of tipper data[J]. Progress in Geophysics, 2015,30(6):2741-2748.
[17]	邓居智, 蓝泽鸾, 陈辉, 等. 大地电磁倾子资料的三维正演研究[J]. 地球物理学进展, 2015,30(4):1666-1672.
[17]	Deng J Z, Lan Z L, Chen H, et al. Research on the 3D magnetotelluric tipper forward modeling[J]. Progress in Geophysics, 2015,30(4):1666-1672.
[18]	徐凤娇, 严良俊, 周磊. 可控源电磁法倾子响应的三维正演[J]. 科学技术与工程, 2019,19(20):143-150.
[18]	Xu F J, Yan L J, Zhou L. Three-dimensional forward for the tipper response of the controlled source electromagnetic method[J]. Technology and Engineering, 2019,19(20):143-150.
[19]	Zhdanov M S, Varentov I M. Methods for modeling electromagnetic fields: Results from COMMEMI—The international project on the comparison of modeling methods for electromagnetic induction[J]. Journal of Applied Geophysics, 1997,44:337-351.
[20]	黄临平, 戴世坤. 复杂条件下3D电磁场有限元计算方法[J]. 地球科学, 2002,27(6):120-124.
[20]	Huang L P, Dai S K. Finite element calculation method of 3D electromagnetic field under complex condition[J]. Earth Science, 2002,27(6):120-124.
[21]	童孝忠, 柳建新, 郭荣文. 复杂二维/三维大地电磁的有限单元法正演模拟策略[J]. CT理论与应用研究, 2009,18(1):47-54.
[21]	Tong X Z, Liu J X, Guo R W. Solution strategies for complex 2D/3D magnetotelluric forward modeling based on the finite element method[J]. CT Theory and Applications, 2009,18(1):47-54.
[22]	余年. 大地电磁二、三维倾子正演模拟与联合反演研究[D]. 成都:成都理工大学, 2012.
[22]	Yu N. 2D/3D Tipper forward modeling and joint inversion of magnetotelluric[D]. Chengdu:Chengdu University of Technology, 2012.

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