Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1991-02-26
1992-11-10
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
G01R 3320
Patent
active
051627337
ABSTRACT:
A method is provided for determining the relative wettability of a sample of a porous media with respect to a first liquid and a second liquid. The method includes the steps of providing the sample at a partially saturated state with respect to the first liquid; obtaining a first nuclear magnetic resonance (NMR) parameter value for the partially saturated sample; exposing the partially saturated sample to the second liquid for a predetermined period of time, wherein the second liquid is treated with a paramagnetic species such that the presence of the second liquid in the sample does not substantially affect the NMR signal response of the sample; obtaining a second NMR parameter value for the sample after exposure to the second liquid; and determining the relative wettability by comparing the first and second NMR parameter values.
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Phillips Petroleum Company
Sharp William R.
Tokar Michael J.
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