05589642 is referenced by 14 patents and cites 10 patents.

A high void fraction multi-phase fluid flow meter and method, wherein a first fluid flow path including a multi-phase flow measuring device disposed in series with a liquid flow restrictor is provided in parallel with a second fluid flow path including a gas flow measuring device. The presence of liquid flow in the flow meter is detected. When liquid flow is detected, a valve in the second fluid flow path operates to cut off fluid flow through the second fluid flow path. Otherwise the valve in the second fluid flow path operates to divert gas flow through the second fluid flow path. Alternatively, a negative pressure differential is produced across the second fluid flow path when liquid flow is present, by passing the incoming liquid flow through a jet pump nozzle, to prevent liquid flow into the second fluid flow path. A check valve is then disposed in the second fluid flow path to prevent backflow from the output of the multi-flow measuring device into the second fluid flow path. A computer outputs an indication of the liquid flow, typically oil flow and water flow, through the multi-phase flow meter, and the combined total amount of gas flow through the two flow meters.

Title
High void fraction multi-phase fluid flow meter
Application Number
8/305344
Publication Number
5589642
Application Date
September 13, 1994
Publication Date
December 31, 1996
Inventor
David Farchi
Houston
TX, US
Joram Agar
Grand Cayman
KY
Agent
Rosenblatt & Redano P C
Assignee
Agar Corporation
TX, US
IPC
G01F 1/74
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