Radiographic observation of liquid filtration through an oil-bearing rock

A simple radiographic procedure was developed for observing the shape and position of liquid boundaries inside a low-porosity compact medium at the impregnation stage. Tests were performed using purified dried sample of sandstone taken from the Mortym'ya-Teterevskoe deposit. During impregnation...

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Bibliographic Details
Published in:Journal of applied mechanics and technical physics 1998-05, Vol.38 (6), p.963-970
Main Author: Pal'chikov, E I
Format: Article
Language:English
Subjects:
Capillarity
Computerized tomography
Crude petroleum
Filtration
Gravitational effects
Impregnation
Mathematical models
Mechanical permeability
Porosity
Sandstone
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Summary:A simple radiographic procedure was developed for observing the shape and position of liquid boundaries inside a low-porosity compact medium at the impregnation stage. Tests were performed using purified dried sample of sandstone taken from the Mortym'ya-Teterevskoe deposit. During impregnation of dry sample, the position of the liquid was determined by capillary effects. The correction due to gravity forces was 10-20%. The state of equilibrium was attained within about 24 h. After attainment of equilibrium, a gradual decrease in the average concentration of each of the components from 100% to 0 along the entire sample was observed. These results indicate that the radiographic procedure can be used for measurements and accurate diagnostics of fluid flows in models of an oil collector.
ISSN:0021-8944