CORRELATION OF WELL LOGS AS A MULTIDIMENSIONAL OPTIMIZATION PROBLEM
V.V. Lapkovsky1,2, A.V. Istomin1, V.A. Kontorovich1,2, V.A. Berdov1
1A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090, Russia
2Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090, Russia
Keywords: Automatic correlation, well log interpretation, optimal correlation, comparison of wells
Abstract
We consider the variant of automatic correlation between well sections based on construction of multidimensional functions of differences between fragments of logs. The solution is obtained either by successive correlation between the boundaries with regard to the projective model of Haites and definition of the boundary position at the minimum of the difference function or by construction of the lines of optimal trajectories on a 2D Zhekovskii’s plot. These algorithms are implemented as a program package for original interpretation of well data and as a plug-in for automatic correlation module of the Schlumberger Petrel software using the Ocean development tools.
DOI: http://dx.doi.org/10.1016/j.rgg.2015.02.009
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