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1. WO2020117350 - INNER CUTTER FOR DRILLING

Publication Number WO/2020/117350
Publication Date 11.06.2020
International Application No. PCT/US2019/051340
International Filing Date 16.09.2019
IPC
E21B 10/55 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
10Drill bits
46characterised by wear resisting parts, e.g. diamond inserts
54the bit being of the rotary drag type, e.g. fork-type bits
55with preformed cutting elements
E21B 10/54 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
10Drill bits
46characterised by wear resisting parts, e.g. diamond inserts
54the bit being of the rotary drag type, e.g. fork-type bits
CPC
E21B 10/54
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
46characterised by wear resisting parts, e.g. diamond inserts
54the bit being of the rotary drag type, e.g. fork-type bits
E21B 10/55
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
46characterised by wear resisting parts, e.g. diamond inserts
54the bit being of the rotary drag type, e.g. fork-type bits
55with preformed cutting elements ; with blades having preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
Applicants
  • HALLIBURTON ENERGY SERVICES, INC. [US]/[US]
Inventors
  • ATKINS, William Brian
Agents
  • PEACOCK, Gregg A.
Priority Data
62/776,02106.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) INNER CUTTER FOR DRILLING
(FR) DISPOSITIF DE COUPE INTERNE POUR FORAGE
Abstract
(EN)
A drill bit includes a bit body defining a bit rotational axis and a blade attached to the bit body. The apparatus also includes a cutter comprising a cutting arc on a cutting surface of the cutter, wherein the cutter comprises at least one relief comprising a straight edge and a curved edge having an end that interrupts the cutting arc.
(FR)
L'invention concerne un trépan de forage comportant un corps de trépan définissant un axe de rotation de trépan et une lame fixée au corps de trépan. L'appareil comporte également un dispositif de coupe comprenant un arc de coupe sur une surface de coupe du dispositif de coupe, le dispositif de coupe comprenant au moins une dépouille comprenant un bord droit et un bord incurvé dont une extrémité interrompt l'arc de coupe.
Latest bibliographic data on file with the International Bureau