title: Simulations of pulsed field gradient spin-echo measurements in porous media.
abstract: Under ideal conditions, in an isotropic homogeneous system, pulsed field gradient spin-echo (PFGSE) experiments measure the probability P(R,t), that a diffusing water molecule will travel a root mean square distance, R, in a time interval of length t. We will show that random walk simulations on model porous media provide valuable insight to the sensitivity of this measurement to (1) complex pore geometries and (2) enhanced relaxation at the pore-grain interface.
authors.affiliation: Schlumberger-Doll Research, Ridgefield, CT 06877-4108.
authors.forename: L M
authors.initials: LM
authors.lastname: Schwartz
authors.forename: P N
authors.initials: PN
authors.lastname: Sen
authors.forename: P P
authors.initials: PP
authors.lastname: Mitra
mesh_terms: D003198:Computer Simulation; D004058:Diffusion; D009682:Magnetic Resonance Spectroscopy; D016062:Porosity; D014867:Water
chemical_list: D014867:Water