DRILL HEAD POSITION DETERMINATION SYSTEM

Abstract DRILL HEAD POSITION DETERMINATION SYSTEM A drill head position determination system (100) is disclosed. The drill head position determination system (100) may include a mast (16), a drill head (26) movably attached to the mast (16), and a drill drive assembly (42) configured to move the dri...

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Bibliographische Detailangaben
Hauptverfasser:	GONZALEZ R., Fernando, HANCOCK M., Stephen, GLOVER, Rex
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:	Abstract DRILL HEAD POSITION DETERMINATION SYSTEM A drill head position determination system (100) is disclosed. The drill head position determination system (100) may include a mast (16), a drill head (26) movably attached to the mast (16), and a drill drive assembly (42) configured to move the drill head (26) up and down along a length of the mast (16). The drill head may be configured to rotate a drill string (30). The drill drive assembly (42) may include at least one sheave (48) and a cable system (46) wound about the at least one sheave (48). The drill head position determination system (100) may further include a sheave sensor (52) operatively coupled to the at least one sheave (48) and configured to determine a position of the drill head (26) based on a measured rotational position of the at least one sheave (48). 1/5 19-0191AU01 1 -24 16 54-r 54 -f