Bit-run nominal seat protector and method of operating same

Bit-run nominal seat protector and method of operating same

A drilling system employs a set of bushings 30, 32, 34 that protect seats 14, 20, 24 used for casing hangers. The system includes one or more seat protectors 30, 32, 34 that attach to a running tool 52. The running tool 52 is lowered down the wellbore with the seat protectors 30, 32, 34 attached and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MINASSIAN, MARC, FORD, DAVID L, EPPINGHAUS, GUILHERME
Format: Patent
Sprache:eng ; fre ; ger
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 drilling system employs a set of bushings 30, 32, 34 that protect seats 14, 20, 24 used for casing hangers. The system includes one or more seat protectors 30, 32, 34 that attach to a running tool 52. The running tool 52 is lowered down the wellbore with the seat protectors 30, 32, 34 attached and deposits a bushing at each surface to be protected. The running tool 52 may retrieve the bushings 30, 32, 34 as the running tool 52 is withdrawn from the wellbore.