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Updated: Jul 28, 2026

Reservoir Condition Pore-scale Imaging of Multiple Fluid Phases Using X-ray Microtomography
Published on: February 25, 2015
Micropore size analysis in oil-well cement by proton nuclear relaxation
Gwenn Le Saoût1, Eric Lécolier, Alain Rivereau
1Institut Français du Pétrole, 1-4 av de Bois Préau, 92852 Rueil-Malmaison, France. lesaout_gwenn@yahoo.fr
Abstract:
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.
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