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1. US20220065672 - DETERMINING FLUID PROPERTIES

Office
United States of America
Application Number 17007399
Application Date 31.08.2020
Publication Number 20220065672
Publication Date 03.03.2022
Publication Kind A1
IPC
G01F 1/716
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
1Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
704using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
708Measuring the time taken to traverse a fixed distance
716using electron paramagnetic resonance (EPR) or nuclear magnetic resonance (NMR)
CPC
G01F 1/716
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
1Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
704using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
708Measuring the time taken to traverse a fixed distance
716using electron paramagnetic resonance [EPR] or nuclear magnetic resonance [NMR]
Applicants Saudi Arabian Oil Company
Inventors Keelan Thomas O'Neill
Michael Leslie Johns
Einar Orn Fridjonsson
Paul Louis Stanwix
Jana M. Al-Jindan
Mohamed Nabil Noui-Mehidi
Title
(EN) DETERMINING FLUID PROPERTIES
Abstract
(EN)

Techniques for measuring liquid properties include circulating a mixed oil-water liquid flow through a fluid flow circuit; polarizing the mixed oil-water liquid flow with a pre-polarizing magnet to an initial polarization; circulating the polarized mixed oil-water liquid flow to an EFNMR detector that includes a radio-frequency (RF) coil and a surrounding electromagnet; further polarizing the polarized mixed oil-water liquid flow with the surrounding electromagnet; measuring fluid induction decay (FID) values of the additionally polarized mixed oil-water liquid flow with the EFNMR detector; transforming the measured FID values to an effective adiabatic transition from the Earth's field to the polarizing field; determining a velocity of the oil in the mixed oil-water liquid flow and a velocity of the water in the mixed oil-water liquid flow based on differences in NMR signal relaxation properties of the transformed FID values; and determining an oil content and a water content of the mixed oil-water liquid flow from the transformed FID values.


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