Fluid-Swelling Clays Interaction Interaction entre fluide et argile gonflante
The structural changes which occur during the swelling of Wyoming Na montmorillonite have been investigated by adsorption and desorption of water, simulation of XRD powder patterns, immersion microcalorimetry, and small-angle X-ray scattering in 10 to the power of (-3) N NaCl solutions. The progress...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2006-11-01
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| Series: | Oil & Gas Science and Technology |
| Online Access: | http://dx.doi.org/10.2516/ogst:1992014 |
| _version_ | 1818886497384792064 |
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| author | Cases J. M. Berend I. François M. Ming J. H. Thomas F. |
| author_facet | Cases J. M. Berend I. François M. Ming J. H. Thomas F. |
| author_sort | Cases J. M. |
| collection | DOAJ |
| description | The structural changes which occur during the swelling of Wyoming Na montmorillonite have been investigated by adsorption and desorption of water, simulation of XRD powder patterns, immersion microcalorimetry, and small-angle X-ray scattering in 10 to the power of (-3) N NaCl solutions. The progressive changes of the water concentration in the interlamellar space, and the mechanisms of water adsorption were followed from dry state to relative pressures up to 0. 9. The microstructure of Na montmorillonite corresponding to high water contents appears to be a network of quasi-crystals containing pores of about 1 µm in size. The tactoids were found to consist of a few layers and the water was mainly located in the layers inside the tactoids. <br> Les changements de structure qui se produisent durant le gonflement de la montmorillonite Na du Wyoming ont été étudiés par différents procédés : adsorption et désorption d'eau, simulation de diagrammes de diffraction, microcalorimétrie d'immersion, et diffusion aux petits angles des rayons X dans des solutions de 10 puissance (-3) N NaCI. Les modifications progressives de la concentration d'eau dans l'espace interfoliaire, et les mécanismes de l'adsorption d'eau ont été suivis de l'état sec jusqu'à des pressions relatives atteignant 0,9. Pour de fortes teneurs en eau, la microstructure de la montmorillonite Na semble être un réseau de quasi-cristaux avec des pores d'environ 1 µm. On a constaté que les tactoïdes se composent de quelques feuillets, à l'intérieur desquels l'eau était principalement concentrée. |
| first_indexed | 2024-12-19T16:22:16Z |
| format | Article |
| id | doaj.art-866c495eae044cc792b1a4c8731fec6d |
| institution | Directory Open Access Journal |
| issn | 1294-4475 1953-8189 |
| language | English |
| last_indexed | 2024-12-19T16:22:16Z |
| publishDate | 2006-11-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Oil & Gas Science and Technology |
| spelling | doaj.art-866c495eae044cc792b1a4c8731fec6d2022-12-21T20:14:26ZengEDP SciencesOil & Gas Science and Technology1294-44751953-81892006-11-0147223223810.2516/ogst:1992014Fluid-Swelling Clays Interaction Interaction entre fluide et argile gonflanteCases J. M.Berend I.François M.Ming J. H.Thomas F.The structural changes which occur during the swelling of Wyoming Na montmorillonite have been investigated by adsorption and desorption of water, simulation of XRD powder patterns, immersion microcalorimetry, and small-angle X-ray scattering in 10 to the power of (-3) N NaCl solutions. The progressive changes of the water concentration in the interlamellar space, and the mechanisms of water adsorption were followed from dry state to relative pressures up to 0. 9. The microstructure of Na montmorillonite corresponding to high water contents appears to be a network of quasi-crystals containing pores of about 1 µm in size. The tactoids were found to consist of a few layers and the water was mainly located in the layers inside the tactoids. <br> Les changements de structure qui se produisent durant le gonflement de la montmorillonite Na du Wyoming ont été étudiés par différents procédés : adsorption et désorption d'eau, simulation de diagrammes de diffraction, microcalorimétrie d'immersion, et diffusion aux petits angles des rayons X dans des solutions de 10 puissance (-3) N NaCI. Les modifications progressives de la concentration d'eau dans l'espace interfoliaire, et les mécanismes de l'adsorption d'eau ont été suivis de l'état sec jusqu'à des pressions relatives atteignant 0,9. Pour de fortes teneurs en eau, la microstructure de la montmorillonite Na semble être un réseau de quasi-cristaux avec des pores d'environ 1 µm. On a constaté que les tactoïdes se composent de quelques feuillets, à l'intérieur desquels l'eau était principalement concentrée.http://dx.doi.org/10.2516/ogst:1992014 |
| spellingShingle | Cases J. M. Berend I. François M. Ming J. H. Thomas F. Fluid-Swelling Clays Interaction Interaction entre fluide et argile gonflante Oil & Gas Science and Technology |
| title | Fluid-Swelling Clays Interaction Interaction entre fluide et argile gonflante |
| title_full | Fluid-Swelling Clays Interaction Interaction entre fluide et argile gonflante |
| title_fullStr | Fluid-Swelling Clays Interaction Interaction entre fluide et argile gonflante |
| title_full_unstemmed | Fluid-Swelling Clays Interaction Interaction entre fluide et argile gonflante |
| title_short | Fluid-Swelling Clays Interaction Interaction entre fluide et argile gonflante |
| title_sort | fluid swelling clays interaction interaction entre fluide et argile gonflante |
| url | http://dx.doi.org/10.2516/ogst:1992014 |
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