Open AccessCompact pseudoanalytic formulations of coaxial coil antennas in a cylindrically multilayered medium for well‐logging applications
Author(s) -
Hong Decheng,
Yu Yang,
Ren Yi,
Huang WeiFeng,
Liu Qing Huo
Publication year - 2018
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2017.0471
Subject(s) - computation , coaxial , electromagnetic coil , reflection (computer programming) , mandrel , acoustics , computer science , optics , electronic engineering , physics , engineering , mechanical engineering , algorithm , electrical engineering , telecommunications , programming language
In this study, the authors present a set of compact and no‐overflow formulations to calculate the response of logging tools with coaxial coil antennas in a concentric cylindrically multilayered formation. It can be applied to fast forward computation and the inverse problem for electromagnetic well‐logging. The tool mandrel can be cylindrically multilayered, and the electrical parameters of each layer are arbitrary. In contrast with previous formulations, they adopt the novel reflection and transmission coefficients in the authors’ formulations so that the notorious overflow problem for numerical computation can be obviated. Numerical results in comparison with those from other approaches have demonstrated the validity and stability of their new formulations.