The study of water saturation process of dolomite core under atmospheric pressure by MRI method
The distribution of the fluid content in the process of water saturation of fine-grained full-sized dolomite core has been measured by magnetic resonance imaging (MRI). Two stages have been allocated in the saturation process. A rapid growth (up to 5 min) of the fluid content in the near-surface cor...
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| Format: | Article |
| Language: | English |
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Kazan Federal University
2017-12-01
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| Series: | Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki |
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| Online Access: | https://kpfu.ru/the-study-of-water-saturation-process-of-dolomite_329265.html |
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| author | P.P. Kobchikova M.M. Doroginitskii A.V. Fattakhov V.E. Kosarev V.M. Murzakaev |
| author_facet | P.P. Kobchikova M.M. Doroginitskii A.V. Fattakhov V.E. Kosarev V.M. Murzakaev |
| author_sort | P.P. Kobchikova |
| collection | DOAJ |
| description | The distribution of the fluid content in the process of water saturation of fine-grained full-sized dolomite core has been measured by magnetic resonance imaging (MRI). Two stages have been allocated in the saturation process. A rapid growth (up to 5 min) of the fluid content in the near-surface core layer (~ 0.5 cm) to the maximum saturation has been observed at the first “hydrodynamic” stage of the process. The hydrodynamic stage of fluid saturation with a void rock space has been considered in the framework of the Darcy filtration model. The pressure gradient in this model has been determined by the difference between the pressure of the fluid formed from the hydrostatic and capillary pressure and the increasing pressure of the compressed gas (air) in the confined pore space. At the second, “diffusion”, stage (from 5 to 320 min), the slow growth of the water content profile has been observed in the central part of the core compared to the hydrodynamic stage. The diffusion stage of saturation has been considered within the model of equilibrium of fluid and gas pressures. The mass transfer of the fluid is carried out at the expense of the fluid content gradient. |
| first_indexed | 2024-04-09T21:46:29Z |
| format | Article |
| id | doaj.art-456101ec907740fc98c4342d71a963bb |
| institution | Directory Open Access Journal |
| issn | 2542-064X 2500-218X |
| language | English |
| last_indexed | 2024-04-09T21:46:29Z |
| publishDate | 2017-12-01 |
| publisher | Kazan Federal University |
| record_format | Article |
| series | Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki |
| spelling | doaj.art-456101ec907740fc98c4342d71a963bb2023-03-24T22:11:17ZengKazan Federal UniversityUčënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki2542-064X2500-218X2017-12-011594618628The study of water saturation process of dolomite core under atmospheric pressure by MRI methodP.P. Kobchikova0M.M. Doroginitskii1A.V. Fattakhov2V.E. Kosarev3V.M. Murzakaev4Kazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaKazan Federal University, Kazan, 420008 RussiaTNG-Group” Ltd, Bugulma, 423236 RussiaThe distribution of the fluid content in the process of water saturation of fine-grained full-sized dolomite core has been measured by magnetic resonance imaging (MRI). Two stages have been allocated in the saturation process. A rapid growth (up to 5 min) of the fluid content in the near-surface core layer (~ 0.5 cm) to the maximum saturation has been observed at the first “hydrodynamic” stage of the process. The hydrodynamic stage of fluid saturation with a void rock space has been considered in the framework of the Darcy filtration model. The pressure gradient in this model has been determined by the difference between the pressure of the fluid formed from the hydrostatic and capillary pressure and the increasing pressure of the compressed gas (air) in the confined pore space. At the second, “diffusion”, stage (from 5 to 320 min), the slow growth of the water content profile has been observed in the central part of the core compared to the hydrodynamic stage. The diffusion stage of saturation has been considered within the model of equilibrium of fluid and gas pressures. The mass transfer of the fluid is carried out at the expense of the fluid content gradient.https://kpfu.ru/the-study-of-water-saturation-process-of-dolomite_329265.htmlwater saturationporous spacedolomite coremagnetic resonance imagingdiffusion in porous space |
| spellingShingle | P.P. Kobchikova M.M. Doroginitskii A.V. Fattakhov V.E. Kosarev V.M. Murzakaev The study of water saturation process of dolomite core under atmospheric pressure by MRI method Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki water saturation porous space dolomite core magnetic resonance imaging diffusion in porous space |
| title | The study of water saturation process of dolomite core under atmospheric pressure by MRI method |
| title_full | The study of water saturation process of dolomite core under atmospheric pressure by MRI method |
| title_fullStr | The study of water saturation process of dolomite core under atmospheric pressure by MRI method |
| title_full_unstemmed | The study of water saturation process of dolomite core under atmospheric pressure by MRI method |
| title_short | The study of water saturation process of dolomite core under atmospheric pressure by MRI method |
| title_sort | study of water saturation process of dolomite core under atmospheric pressure by mri method |
| topic | water saturation porous space dolomite core magnetic resonance imaging diffusion in porous space |
| url | https://kpfu.ru/the-study-of-water-saturation-process-of-dolomite_329265.html |
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