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US 4,282,760 AGranted
Multiphase fluid flow meter (D#76,244)
AssigneeTexaco Inc.
InventorsRobert W. Pitts, Jr., Dan M. Arnold, Hans J. Paap
Life of this patent
Estimating the term…
Abstract
An improved multiphase fluid flow meter for fluid which contains gas. It has a full circle loop to subject the flowing fluid to centrifugal force, and it can measure the pressure differentials between the center and the outside and inside radii of the loop. Also it can measure the density of the average fluid flowing, plus the density of a continuous sampling of the gas and of the liquid constituent of the fluid.
Claims8
Improved multiphase fluid flow meter wherein one of said phases is a gas, comprising
- a conduit for said fluid to flow therethrough,
- said conduit including a full circle loop for subjecting said fluid to centrifugal force,
- first means for measuring the pressure differential between the center and outside radii on said loop,
- second means for measuring the pressure differential between the inside and center radii on said loop,
- means for measuring the average density taken radially across the fluid flowing through said loop,
- means for measuring the density of said gas phase, and
- means for measuring the density of said liquid phase,
- all whereby rates of fluid flow including said gas flowing through said meter may be measured.
5 more elements
Improved two phase fluid flow meter wherein said phases are gas and liquid, comprising
- a conduit for said fluid to flow therethrough,
- said conduit including a full circle loop for subjecting said fluid to centrifugal force,
- first means for measuring the pressure differential between the center and outside radii on said loop,
- second means for measuring the pressure differential between the inside and center radii on said loop,
- a first gamma ray densitometer for measuring the average density radially across the fluid flowing through said loop,
- a second gamma ray densitometer for measuring the density of said gas phase,
- a third gamma ray densitometer for measuring the density of said liquid phase,
- first chamber means for holding a dynamically changing sample of said gas phase,
- second chamber means for holding a dynamically changing sample of said liquid phase,
- a common gamma ray source for said densitometers,
- a first means for collimating said gamma ray source directed radially across said loop to make said average density measurement,
- a second means for collimating said gamma ray source directed across said first chamber means to make said gas phase density measurement,
- a third means for collimating said gamma ray source directed across said second chamber means to make said liquid phase density measurement, and
- first and second siphon means connected to said first and second chamber means for continuously drawing fresh samples of said gas and liquid phases.
11 more elements
Dependencies are inferred from the claim text.