Electroacoustic Pump-Down Sensor

Disclosed are pump-down sensor devices that operate in conjunction with a fiber-optic sensing system to take downhole measurements and communicate them to the surface while moving untethered through a borehole. A pump-down sensor device in accordance with various embodiments includes one or more flo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Jaaskelainen, Mikko, Park, Brian Vandellyn, Warpinski, Norman R
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	Disclosed are pump-down sensor devices that operate in conjunction with a fiber-optic sensing system to take downhole measurements and communicate them to the surface while moving untethered through a borehole. A pump-down sensor device in accordance with various embodiments includes one or more flow baffles configured for a specified buoyancy, and an electronics module for measuring one or more downhole parameters and transmitting an acoustic signal encoding the measured parameter(s). The acoustic signal can be detected using the fiber-optic sensing system. Additional embodiments are disclosed.