DAMPERS FOR MITIGATION OF DOWNHOLE TOOL VIBRATIONS AND VIBRATION ISOLATION DEVICE FOR DOWNHOLE BOTTOM HOLE ASSEMBLY

DAMPERS FOR MITIGATION OF DOWNHOLE TOOL VIBRATIONS AND VIBRATION ISOLATION DEVICE FOR DOWNHOLE BOTTOM HOLE ASSEMBLY

A system for drilling a borehole into the earth's subsurface includes a drill bit configured to rotate and penetrate through the earth's subsurface, and a vibration isolation device configured to isolate vibration that is caused at the drill bit, the vibration having an amplitude. The ampl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Heinisch, Dennis, Mihajlovic, Sasa, Reckmann, Hanno, Hohl, Andreas, Peters, Volker
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 system for drilling a borehole into the earth's subsurface includes a drill bit configured to rotate and penetrate through the earth's subsurface, and a vibration isolation device configured to isolate vibration that is caused at the drill bit, the vibration having an amplitude. The amplitude of the vibration downhole of the vibration isolation device is at least 20% higher than the amplitude of the vibration uphole of the vibration isolation device.