Method of Acquiring Viscosity of A Downhole Fluid in A Downhole Tool with A Vibrating Wire Viscometer

A method of acquiring viscosity of a downhole fluid is provided. The downhole fluid is in a downhole tool positionable in a wellbore penetrating a subterranean formation. The method involves obtaining a viscosity signal of the downhole fluid using a vibrating wire viscometer of the downhole tool, an...

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Bibliographische Detailangaben
Hauptverfasser:	KAJIKAWA YOHEI, STANGELAND MICHAEL, MORIKAMI YOKO
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A method of acquiring viscosity of a downhole fluid is provided. The downhole fluid is in a downhole tool positionable in a wellbore penetrating a subterranean formation. The method involves obtaining a viscosity signal of the downhole fluid using a vibrating wire viscometer of the downhole tool, and acquiring viscosity parameters of the viscosity signal. The acquiring involves adjusting the viscosity signal by removing offsets from the viscosity signal, generating a complex signal from the adjusted viscosity signal, obtaining a low frequency component of the complex signal by filtering the complex signal into a high frequency component and the low frequency component and removing the high frequency component, and determining the viscosity parameters from the low frequency component.