Determination of the Transport Properties of Fluid in a porous Medium by nuclear magnetic resonance measurements of FLUID FLOW

摘要

Claim number, a method for obtaining at least one property of fluid transport in a porous material under conditions of steady flow, which includes: (a) saturated Porous material withA fluid and IM - Put a pressure gradient such that the FLUID FLOW through porous medium; (b) Implement Radio Frequency pulses which can leading to a precision Coherent spins fluiDo all pulses in which nuclear Larmor frequencies ra gave a kind preselec facility of nuclear spins in the Fluid molecules; (c) to apply gradient Magnetic FieldsEncode the Movement of the Molecules of Fluid during a time interval of well defined - OJ (Delta) (d) The Probability Distribution of displacement during this interval dAnd time (Delta); (e) to determine the property of fluid transport from the Probability Distribution of the Fluid displacement.