hp-HGS strategy for inverse 3D DC resistivity logging measurement simulations

Abstract
In this paper we present a twin adaptive strategy hp-HGS for solving inverse problems related to 3D DC borehole resistivity measurement simulations. The term “simulation of measurements” is widely used by the geophysical community. A quantity of interest, voltage, is measured at a receiver electrode located in the logging instrument. We use the self-adaptive goal-oriented hp-Finite Element Method (hp-FEM) computer simulations of the process of measurements in deviated wells (when the angle between the borehole and formation layers are < 90 deg). We also employ the hierarchical genetic search (HGS) algorithm to solve the inverse problem. Each individual in the population represents a single configuration of the formation layers. The evaluation of the individual is performed by solving the direct problem by means of the hp-FEM algorithm and by comparison with measured logging curve. We conclude the paper with some discussion on the parallelization of the algorithm.

Citation
hp-HGS strategy for inverse 3D DC resistivity logging measurement simulations 2012, 9:927 Procedia Computer Science

Publisher
Elsevier BV

Journal
Procedia Computer Science

Conference/Event Name
12th Annual International Conference on Computational Science, ICCS 2012

DOI
10.1016/j.procs.2012.04.099

Additional Links
http://linkinghub.elsevier.com/retrieve/pii/S1877050912002207

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