PIER
 
Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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ANALYSIS AND CORRECTION OF BOREHOLE EFFECT ON THE RESPONSES OF MULTICOMPONENT INDUCTION LOGGING TOOLS

By X. Y. Sun, Z.-P. Nie, A. Li, and X. Luo

Full Article PDF (373 KB)

Abstract:
The analytical formulae based on the generalized reflection and transmission coefficient matrices for cylindrically stratified media are used to simulate the borehole effect on multicomponent induction logging responses in various ratios of mud conductivity and formation conductivity and to investigate the tool's eccentricity effect on the responses of coplanar coils and coaxial coils. The simulated data show that the borehole effect and the tool's eccentricity effect on the response of coplanar coils is greater than that on the response of coaxial coils in most cases. Then we give an algorithm for the correction of borehole effect on multicomponent induction logging responses, and the algorithm is based on the above-mentioned formulae to build forward model and regularized Newton method. Finally we correct borehole effect on the apparent conductivity responses of two different models with the algorithm, and the results demonstrate the effectiveness of the algorithm.

Citation:
X. Y. Sun, Z.-P. Nie, A. Li, and X. Luo, "Analysis and correction of borehole effect on the responses of multicomponent induction logging tools," Progress In Electromagnetics Research, Vol. 85, 211-226, 2008.
doi:10.2528/PIER08072206
http://www.jpier.org/PIER/pier.php?paper=08072206

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