US 10,591,441 B2 · Oil content sensor

Abstract

The present disclosure relates to systems and methods for measuring oil/water content in oil-water mixtures, regardless of the salinity of the mixture and regardless of air in the sensor pipe. In some embodiments, the oil content is measured using a dielectric sensor. It is determined whether the oil content is above or below a threshold. If the oil content is above the threshold, the oil content is reported using the measurement from the dielectric sensor. If the oil content is below the threshold, the oil content is reported using the measurement from the eddy current sensor. In some embodiments, which improve performance when there is air in the sensor pipe, two dielectric sensors with different geometries are used instead of the one dielectric sensor.

Claims25

Dependent claims

A system for measuring oil content of a fluid, comprising:

a pipe having a cavity configured to hold air, oil, and water;
a first dielectric sensor, comprising:
a first side electrode on a first side of the pipe;
and
a second side electrode on a second side of the pipe, wherein the first side of the pipe is opposite the second side of the pipe;
and
a second dielectric sensor, comprising:
a top electrode on a top of the pipe;
and
a bottom electrode on a bottom of the pipe.

7 more elements

Dependencies are inferred from the claim text.

Oil content sensor

Life of this patent

Oil content sensor

Life of this patent

Abstract

Claims25