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Hydrodynamic Model for the Evolution of an Invaded Zone in Borehole Drilling |
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| Authors: | A. A. Kashevarov I. N. Yeltsov M. I. Épov |
| Affiliation: | (1) Lavrent'ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090;(2) Institute of Geophysics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090 |
| Abstract: | The evolution of an invaded zone during borehole drilling in water- and oil-saturated sand formations is studied by mathematical modeling of hydrodynamic processes in porous media filled with a two-component fluid. The use of hydrodynamic modeling to interpret high-frequency electromagnetic logs makes it possible to construct consistent geoelectric and hydrodynamic models for formations with different fluid saturations. The results obtained are in good agreement with geological and geophysical data. |
| Keywords: | mathematical modeling invaded zone formation oil saturation concentration resistivity borehole logging |
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