Results of numerical modeling of the effect of vertical fractures on electrical logging data
https://doi.org/10.18303/2619-1563-2023-4-53
Abstract
Based on the results of numerical modeling, the effect of vertical drilling-induced fractures on the data of galvanic electrical logging methods is considered. Geoelectric models represent a space with different resistivity values, a well and axisymmetric fractures filled with drilling fluid. The effect of fractures limited in radial depth on galvanic logging data leads to a change in signals similar to the change opposite the formation with a penetration zone located within the fracture interval. Based on the on gradient probes and focused logging data, a model of both a formation with an invaded zone and an impermeable formation with a vertical resistivity less than the horizontal one is selected. Thin vertical fractures do not affect the signals of induction probes, which may be a sign of their presence.
About the Authors
K. V. Sukhorukova
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS
Russian Federation
Russian Federation
Koptyug Ave., 3, Novosibirsk, 630090, Russia
I. V. Surodina
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS
Russian Federation
Russian Federation
Koptyug Ave., 3, Novosibirsk, 630090, Russia
O. V. Nechaev
Trofimuk Institute of Petroleum Geology and Geophysics SB RAS
Russian Federation
Russian Federation
Koptyug Ave., 3, Novosibirsk, 630090, Russia
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Review
For citations:
Sukhorukova K.V., Surodina I.V., Nechaev O.V. Results of numerical modeling of the effect of vertical fractures on electrical logging data. Russian Journal of Geophysical Technologies. 2023;(4):53-63. (In Russ.) https://doi.org/10.18303/2619-1563-2023-4-53
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