Single-cone rock bit having cutting structure adapted to improve hole cleaning and to reduce tracking and bit balling

Single-cone rock bit having cutting structure adapted to improve hole cleaning and to reduce tracking and bit balling

A roller cone drill bit comprises a bit body (1) adapted to be coupled to a drill string, a bearing journal (1A) depending from the bit body, and a single roller cone (6) carrying insert (5) rotatably attached to the bearing journal. The inserts are arranged in columns such that one of the inserts i...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: GEORGE BODO WITMAN IV, YING XIANG, MICHAEL ALLEN SIRACKI
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 roller cone drill bit comprises a bit body (1) adapted to be coupled to a drill string, a bearing journal (1A) depending from the bit body, and a single roller cone (6) carrying insert (5) rotatably attached to the bearing journal. The inserts are arranged in columns such that one of the inserts is overlapped only by an adjacent one of the inserts in one of the columns.