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Comparative Imaging of Liquids in Rocks by NMR and Differential X Ray CT

  • C. Jeandey (a1), J.M. Casagrande (a2), A. Briguet (a3), T. Ntoutoume (a4) and G. Guillot (a4)...

Abstract

We have applied NMR Imaging and X_Ray Computerized Tomography to the study of the structural properties of rocks. Samples from different porous rocks; sandstones, granites, limestones have been successively examined by both techniques. NMR images have been obtained on water saturated samples. The spatial distribution of liquid indicates the effective porosity. By constrast, X_Ray images display the mineral content of rocks. Standard tomographs do not have the required resolution to see pores smaller than 100 μm. We used water as a constrast agent to localize porosities by “differential” CT. Comparative results are shown.

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Comparative Imaging of Liquids in Rocks by NMR and Differential X Ray CT

  • C. Jeandey (a1), J.M. Casagrande (a2), A. Briguet (a3), T. Ntoutoume (a4) and G. Guillot (a4)...

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