FLUID METER, ESPECIALLY FOR HYDROCARBON WELLS

The flowmeter comprises a central mandrel suspended from a cable and centered in the fluid stream so as to leave an annular passage. Fluid stream contracting means are provided for forming a venturi in the annular passage, and a differential pressure gauge is provided in the central mandrel to produ...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	CZERNICHOW, JEAN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The flowmeter comprises a central mandrel suspended from a cable and centered in the fluid stream so as to leave an annular passage. Fluid stream contracting means are provided for forming a venturi in the annular passage, and a differential pressure gauge is provided in the central mandrel to produce a signal representative of the pressure head loss across the venturi, which signal is processed to derive the flow rate.