Drilling rig mast erection system

A drilling rig mast erection system includes a mast support shoe that is fixedly attached to a drilling rig substructure and has a support shoe pinned connection. A bottom mast section has a first mast pinned connection that is adapted to be pivotably connected to the support shoe pinned connection....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Thiessen Jay John, Burlet Donald Leonard, Konduc Kameron Wayne
Format:	Patent
Sprache:	eng
Schlagworte:	BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES CEILINGS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FENCING FIXED CONSTRUCTIONS FLOORS GENERAL BUILDING CONSTRUCTIONS INSULATION OR OTHER PROTECTION OF BUILDINGS MASTS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ROOFS SWIMMING OR SPLASH BATHS OR POOLS TENTS OR CANOPIES, IN GENERAL WALLS, e.g. PARTITIONS
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Beschreibung
Zusammenfassung:	A drilling rig mast erection system includes a mast support shoe that is fixedly attached to a drilling rig substructure and has a support shoe pinned connection. A bottom mast section has a first mast pinned connection that is adapted to be pivotably connected to the support shoe pinned connection. A mast positioning apparatus is adapted to pivotably position the bottom mast section so that the first mast pinned connection is positioned adjacent to the support shoe pinned connection. The mast positioning apparatus includes a bottom mast support spreader having a first end that is adapted to be pivotably connected to the bottom mast section at a first spreader end pinned connection and a mast erection apparatus having a first end that is adapted to be pivotably connected to the bottom mast support spreader at a first mast erection apparatus pinned connection.