Micropore size analysis in oil-well cement by proton nuclear relaxation

The durability of cement depends mainly on cement microstructure parameters such as pore size distribution. In this study, we have observed pore size distribution in a Class G oil-well cement immersed for 1 year in brine at T=293 K, P=10 5 Pa and in a down-hole condition at T=353 K, P=7.10 6 Pa by p...

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Bibliographic Details
Published inMagnetic resonance imaging Vol. 23; no. 2; pp. 371 - 373
Main Authors Le Saoût, Gwenn, Lécolier, Eric, Rivereau, Alain, Zanni, Hélène
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier Inc 01.02.2005
Elsevier
Subjects
Chemical Sciences
Construction Materials
Magnetic Resonance Spectroscopy
Nuclear magnetic relaxation
Oil-well cement
Petroleum
Pore size distribution
Porosity
Protons
Salts
Nuclear magnetic relaxation
Pore size distribution
Oil-well cement
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Summary:The durability of cement depends mainly on cement microstructure parameters such as pore size distribution. In this study, we have observed pore size distribution in a Class G oil-well cement immersed for 1 year in brine at T=293 K, P=10 5 Pa and in a down-hole condition at T=353 K, P=7.10 6 Pa by proton nuclear magnetic spin-lattice relaxation ( 1H-NMR). After 4 months of immersion at T=293 K, P=10 5 Pa, the distribution of discrete relaxation rates reveals the fractal feature of the pore size distribution, whereas after 1 year at T=353 K, P=7.10 6 Pa, a dispersed distribution is still observed.
Bibliography:ObjectType-Article-1
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ObjectType-Feature-2
content type line 23
ISSN:0730-725X
1873-5894
DOI:10.1016/j.mri.2004.11.052