MECHANICAL FORCE GENERATOR

Disclosed is a mechanical force generator for use in a drillstring that provides a sinusoidal or near sinusoidal oscillating output, comprising: a rotatable cam plate connected to a mass, the cam plate having two opposed oblique bearing surfaces rotatable through a bearing, wherein upon rotation, th...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GREENWOOD, ROLAND, SCHICKER, OWEN
Format:	Patent
Sprache:	eng ; pol
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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