Device for measuring the viscosity of a fluid
AssigneeSchlumberger Systemes
InventorsJean-Pierre Nitecki, Patrick Siri
Life of this patent
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Abstract
A device for measuring the viscosity of a fluid includes a viscosensitive unit through which the fluid flows under laminar flow conditions, a first turbulent flow flowmeter in series with the viscosensitive unit, and a second turbulent flow flowmeter shunting at least the viscosensitive unit. The flowmeters are adapted to determine the head loss .DELTA.p and the flowrate q of the fluid through the viscosensitive unit, the dynamic viscosity .mu. being given by the equation .mu.=.DELTA.p/kq where k is a constant dependent on the viscosensitive unit. The device is applicable to accurate measurement of fluid volumes.
Claims10
A device for measuring the viscosity of a fluid wherein said device includes:
- a viscosensitive unit through which said fluid flows under laminar flow conditions,
- a first turbulent flow flowmeter in series with said viscosensitive unit, and
- a second turbulent flow flowmeter shunting at least the viscosensitive unit,
- said flowmeters being adapted to determine the head loss .DELTA.p and the flowrate q of the fluid through the viscosensitive unit, the dynamic viscosity .mu. being given by the equation .mu.=.DELTA.p/kq where k is a constant dependent on the viscosensitive unit.
Dependencies are inferred from the claim text.