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Simulation of DC dual-laterolog measurements in complex formations: A Fourier-series approach with nonorthogonal coordinates and self-adapting finite elements
Nam, M.J.; Pardo, D.
; Torres-Verdin, C. (2009-12-31)
; Torres-Verdin, C. (2009-12-31)
Dual laterolog (DLL) makes use of a galvanic conduction principle to focus electrical currents into rock formations, thereby minimizing shoulder and borehole effects in the measurement of formation resistivity. The tool ...
Performance of a multi-frontal parallel direct solver for hp-finite element method
Paszynski, M.; Pardo, D.; Torres-Verdin, C. (2009-12-31)
; Torres-Verdin, C. (2009-12-31)
In this paper we present the performance of our parallel multi-frontal direct solver when applied to solve linear systems of equations resulting from discretizations of a hp Finite Element Method (hp-FEM). The hp-FEM ...
Sensitivity study of borehole-to-surface and crosswell electromagnetic measurements acquired with energized steel casing to water displacement in hydrocarbon-bearing layers
Pardo, D.; Torres-Verdin, C.; Zhang, Z. (2008-12-31)
; Torres-Verdin, C.; Zhang, Z. (2008-12-31)
We study the theoretical response of electromagnetically energized steel casing in the presence of subsurface variations of electrical resistivity. Casing is energized with a finite-size solenoid antenna located along the ...
Energy-norm-based and goal-oriented automatic hp adaptivity for electromagnetics: Application to waveguide Discontinuities
Garcia-Castillo, L.E.; Pardo, D.; Demkowicz, L. (2008-12-31)
; Demkowicz, L. (2008-12-31)
The finite-element method (FEM) enables the use of adapted meshes. The simultaneous combination of h (local variations in element size) and p (local variations in the polynomial order of approximation) refinements, i.e., ...