DOWNHOLE DENSITOMETER

A measurement device (104) is provided that determines fluid properties from vibration frequencies of a sample cavity (first 108) and a reference cavity (second 108). In one embodiment, t he measurement device includes a sample flow tube (first 108), a reference flow tube (second 108), vibration sou...

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Bibliographische Detailangaben
Hauptverfasser:	BIRCHAK, JAMES ROBERT, PELLETIER, MICHAEL T, RITTER, THOMAS EDWARD, STORM, BRUCE H., JR, PROETT, MARK A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS DETECTING MASSES OR OBJECTS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GEOPHYSICS GRAVITATIONAL MEASUREMENTS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR 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 TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	A measurement device (104) is provided that determines fluid properties from vibration frequencies of a sample cavity (first 108) and a reference cavity (second 108). In one embodiment, t he measurement device includes a sample flow tube (first 108), a reference flow tube (second 108), vibration sources (110) and detectors (12) mounted on the tubes, and a measurement module. The sample flow tube receives a flow of sample fluid for characterization. The reference flow tube is filled with a reference fluid having well-characterized properties. The measurement module employs t he vibration sources to generate vibrations in both tubes. The measurement module combines the signals from the vibration detectors on the tubes to determine properties of the sample fluid, such as density, viscosity, compressibility, water fraction, and bubb le size.