Susceptibility contrast and transverse relaxation in porous media: Simulations and experiments

• Published in: Magnetic resonance imaging Vol. 14; no. 7; pp. 819 - 822
• Main Authors: Bobroff, S., Guillot, G.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY Elsevier Inc 1996; Elsevier Science
• Subjects: Biological and medical sciences; Diffusion; Earth sciences; Earth, ocean, space; Exact sciences and technology; Hydrogeology; Hydrology. Hydrogeology; Immiscible saturation; Investigative techniques, diagnostic techniques (general aspects); Magnetic Resonance Spectroscopy; Medical sciences; NMR; Otorhinolaryngology. Stomatology. Orbit; Petroleum; Porosity; Porous media; Radiodiagnosis. Nmr imagery. Nmr spectrometry; T2 simulation; Water; Wetting; France; Seine-et-Marne; Europe; Ile-de-France; Porous media; T 2 simulation; NMR; Immiscible saturation; Wetting; Deuterium; Geometry; Hydrocarbon; immiscibility; Saturation; Porous medium; Oxides; Numerical simulation; Nuclear magnetic resonance; Diffusion; Magnetic field; Sandstone
• ISSN: 0730-725X; 1873-5894
• DOI: 10.1016/S0730-725X(96)00209-3

A numerical simulation of spin diffusion in inhomogeneous magnetic fields due to susceptibility contrast was developed to describe the transverse relaxation of fluids in porous media. The simulation results are in quantitative agreement with experimental measurements obtained on samples of simple geometry. They also confirm the interpretation of the
1H transverse relaxation observed in natural rocks either hydrophilic or hydrophobic for several deuterium oxide/oil saturations, based on the traditional description of water and oil arrangement.