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A stable algorithm for simulation of array induction and measurement‐while‐drilling logging tools
Author(s) -
Tian Xiang,
Liu Ce,
Shen Liang C.
Publication year - 1998
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/98rs00976
Subject(s) - tracing , cascade , ray tracing (physics) , algorithm , computer science , stability (learning theory) , mode (computer interface) , computer simulation , acoustics , geology , optics , simulation , physics , engineering , chemical engineering , machine learning , operating system
A stable numerical method to simulate array induction and measurement‐while‐drilling (MWD) logs is presented. The algorithm is based on a horizontal eigenmode expansion method. Mode propagation in the vertical direction is described by three‐layer modules. Within each module, general transmission and reflection coefficients are obtained by tracing the propagation of the modes. The multilayer cases are treated as a cascade of such modules. Owing to the mode‐tracing algorithm, numerical stability and efficiency are superior to the other methods. This numerical algorithm is applied to the simulation of array induction and MWD logs in formations with both vertical and horizontal layers.