Patent
High void fraction multi-phase fluid flow meter
Agar Joram,David Farchi +1 more
TLDR
In this article, a high void fraction multi-phase fluid flow meter and method is presented, where a first fluid flow path including a multiphase flow measuring device disposed in series with a liquid flow restrictor is provided in parallel with a second fluid flowpath including a gas flow measurement device.Abstract:
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.read more
Citations
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References
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Patent
Apparatus and method for measuring two or three phase fluid flow utilizing one or more momentum flow meters and a volumetric flow meter
David Farchi,Agar Joram +1 more
TL;DR: In this article, an apparatus and method for measuring the flow rates of each component of two-phase flow consisting of a gas and a liquid, including a first volumetric flow meter stage, was presented.
Patent
Multiphase fluid flow measurement
TL;DR: In this paper, a system consisting of one or two densitometers for measuring the multiphase fluid density flowing through a flowline or conduit and a flow restriction, pump, expander, or heat exchanger interposed in the flowline between the densitometer to effect a pressure or temperature change in the multi-phase fluid flow is described.
Patent
Two-phase flowmeter
Edward Rhodes,Donald S. Scott +1 more
TL;DR: The tubular flowmeter is capable of measuring two different physical parameters in a flowing mixture of liquid and gas (such as wet steam). These measurements are such that they can be used to determine the individual gas and liquid flowrates as mentioned in this paper.
Patent
Methods for metering two-phase flow
TL;DR: In this article, a method for metering two-phase flow was proposed, where the successive accelerationational pressure drops across an orifice plate and across a venturi coupled in series with the plate are correlated to obtain one or more flow-rate parameter.
Patent
Two and three-phase flow measurement
TL;DR: In this paper, a flow restrictor is added to the first and second flow meters to enable the measurement of multi-phase flow without the need for physically separating the different fluid flows.