Acoustic transmitter and method to produce essentially longitudinal, acoustic waves

Acoustic transmitter and method to produce essentially longitudinal, acoustic waves

A portable, electrohydraulic, acoustic transmitter releasably attaches to a solid medium such as a drill string to generate essentially longitudinal, acoustic signals in the medium. The signals are frequency modulated so that encoded messages may be transmitted between a surface and subsurface locat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PETERSEN, CLIFFORD W, HOCKER, JR., EDWIN J, GAUGER, DAVID H, BEDNAR, JOHN M, HENDERSON, JAMES M
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:A portable, electrohydraulic, acoustic transmitter releasably attaches to a solid medium such as a drill string to generate essentially longitudinal, acoustic signals in the medium. The signals are frequency modulated so that encoded messages may be transmitted between a surface and subsurface location to activate downhole equipment.