title: Measurements and analysis of fluid saturation-dependent NMR relaxation and linebroadening in porous media.
abstract: NMR T1, T2 and spectral linewidth measurements were conducted in rock samples with different saturations obtained by drainage experiments. Saturation dependent T1 was found to follow a power-law relationship and the inverse of linewidth to follow a linear dependence with saturation. These phenomena can be explained by considering that the fluids are distributed in different sized pores for different saturation states. A method is proposed for calculating wetting phase relative permeabilities using T1 data at various saturations.
authors.affiliation: Department of Chemical Engineering, Texas A&M University, College Station 77843.
authors.forename: S
authors.initials: S
authors.lastname: Chen
authors.forename: H K
authors.initials: HK
authors.lastname: Liaw
authors.forename: A T
authors.initials: AT
authors.lastname: Watson
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D016062:Porosity; D014867:Water
chemical_list: D014867:Water