HYBRID DRILL BITS HAVING INCREASED DRILLING EFFICIENCY

A hybrid earth-boring drill bit (611), comprising a bit body (613) having a face, wherein said hybrid earth-boring drill bit (611) comprises roller cone support arms (617, 619) and fixed blades (623, 625) extending radially outward from ends located proximate a central axis of the bit body, wherein...

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Main Authors BUSKE, ROBERT, J, VEMPATI, CHAITANYA, K, ZAHRADNIK, ANTON, F, ROTHE, MITCHELL, A, HOWARD, JOHNATHAN, NGUYEN, DON, Q, PESSIER, ROLF, C, CEPEDA, KARLOS, DAMSCHEN, MICHAEL, S
Format Patent
LanguageEnglish
French
German
Published 27.01.2016
Subjects
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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Summary:A hybrid earth-boring drill bit (611), comprising a bit body (613) having a face, wherein said hybrid earth-boring drill bit (611) comprises roller cone support arms (617, 619) and fixed blades (623, 625) extending radially outward from ends located proximate a central axis of the bit body, wherein the further comprise a saddle mount assembly (660) proximate the central axis of the bit body and the roller cones (629, 631) are rotatably mounted on spindles (670) projecting outwardly from the saddle mount assembly (660).
Bibliography:Application Number: EP20120849014