AAPG Methods in Exploration No. 13, Chapter 3:
Petrophysics-based Resolution Matching for Induction Logs, by J. Xiao, D. Beard, B.
Corley, and I. M. Geldmacher, Pages 27 - 38
AAPG Methods in Exploration No. 13: Geological Applications of Well Logs, Edited
by M. Lovell and N. Parkinson
Copyright © 2002 by The American Association of Petroleum Geologists. All rights
Petrophysics-based Resolution Matching for Induction Logs
I. M. Geldmacher
Houston, Texas, U.S.A.
The physics of induction well-logging measurements controls the fundamental vertical
resolution of a well log. Logs with great depth of investigation have coarser vertical
resolution than the logs of smaller depth of investigation where measured by the same
physical principles. For log-interpretation purposes, however, it is often convenient to
have all logs at the same vertical resolution. The resolution matching technique
essentially extracts high-resolution variations from a high-resolution curve and imposes
them onto the low-resolution curve, to enhance the lower-resolution curve to the same