A quasi-3D TEM inversion based on lateral constraints 横向约束瞬变电磁拟三维反演

Yang，Yunjian1,2; Wang，Xuben1; Liu，Xuejun2; He，Zhanxiang3; Mi，Xiaoli2; Tang，Biyan2

2021-02-15

10.13810/j.cnki.issn.1000-7210.2021.01.023

石油地球物理勘探   影响因子和分区

1000-7210

One-dimensional inversion is one of the main methods for processing of TEM data, but usually there is poor continuity on one-dimensional inversion profile. The principle of lateral constraint is introduced to construct quasi-3D transient electromagnetic method (TEM) inversion. Considering that the actual 3D measuring grid is often not strictly regular, the quasi-3D TEM data inversion is constructed with the distance-weighted adjacent stations lateral constraint, and the Gauss-Newton method is used to solve the inversion equation, which can not only effectively suppressed the irrational model mutation generated by single station 1D inversion, also has no the requirement on the regularity of the 3D measuring grid. The tests of the synthetic data and field data verified the effectiveness of this method.

Irregular measuring grid Lateral constraint Quasi-3D inversion TEM

EI

中文

其他

20210809938604

Newton-Raphson method

Data Processing and Image Processing:723.2 ; Numerical Methods:921.6

2-s2.0-85101377845

Scopus

1.College of Geophysics,Chengdu University of Technology,Chengdu,610059,China
2.GME & Geochemical Surveys,BGP,CNPC,Zhuozhou,072751,China
3.SUSTech Academy for Advanced Interdisciplinary Studies,Shenzhen,518055,China

Yang，Yunjian,Wang，Xuben,Liu，Xuejun,等. A quasi-3D TEM inversion based on lateral constraints 横向约束瞬变电磁拟三维反演[J]. 石油地球物理勘探,2021,56(1):201-208.

Yang，Yunjian,Wang，Xuben,Liu，Xuejun,He，Zhanxiang,Mi，Xiaoli,&Tang，Biyan.(2021).A quasi-3D TEM inversion based on lateral constraints 横向约束瞬变电磁拟三维反演.石油地球物理勘探,56(1),201-208.

Yang，Yunjian,et al."A quasi-3D TEM inversion based on lateral constraints 横向约束瞬变电磁拟三维反演".石油地球物理勘探 56.1(2021):201-208.