Multiphase volume and flow test instrument

Details Multiphase volume and flow test instrument Multiphase volume and flow test instrument

1991-02-14

1993-10-12

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Of selected fluid mixture component

73 6144, G01F 1508

Patent

active

052514889

ABSTRACT:
An apparatus and a method for ascertaining the relative amount of two or more phases present in a multiphase flow, such as produced petroleum, through a pipe. Multiphase flow is temporarily diverted into a test section. Normal flow is then restored with fluids trapped in the test pipe. One or more floats of proper densities inside the test pipe are allowed to float to and stabilize at positions representative of the phase interfaces. An electromagnetic, radioactive, acoustic, or other sensor is used from outside the test pipe to locate the interfaces as indicated by the position of the floats. The relative amount of the various phases is then calculated. In an alternative embodiment, the velocity of a piston located inside the test section is also measured to give the total flow rate of the multiphase flow. The total volumetric flow rate, along with the relative phase amounts gives the absolute volumetric phase flow rates.

REFERENCES:
patent: 2451882 (1948-10-01), Smith
patent: 3220930 (1965-11-01), Thompson
patent: 3344659 (1967-10-01), Chambers
patent: 3464258 (1969-09-01), Lerner
patent: 3721121 (1973-03-01), Fierfort
patent: 3911256 (1975-10-01), Jones
patent: 3935741 (1976-02-01), Zinsmeyer
patent: 4672840 (1987-06-01), Cullick
patent: 4760742 (1988-08-01), Hatton

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