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1. WO2018144762 - DRILL BIT INSERTS AND DRILL BITS INCLUDING SAME

Publication Number WO/2018/144762
Publication Date 09.08.2018
International Application No. PCT/US2018/016495
International Filing Date 01.02.2018
IPC
E21B 10/56 2006.1
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
56Button-type inserts
E21B 10/43 2006.1
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
42Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
43characterised by the arrangement of teeth or other cutting elements
E21B 10/50 2006.1
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
50the bit being of roller type
E21B 10/52 2006.1
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
50the bit being of roller type
52with chisel- or button-type inserts
E21B 10/58 2006.1
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
58Chisel-type inserts
E21B 10/62 2006.1
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
62characterised by parts, e.g. cutting elements, which are detachable or adjustable
CPC
E21B 10/43
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
42Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
43characterised by the arrangement of teeth or other cutting elements
E21B 10/52
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
46characterised by wear resisting parts, e.g. diamond inserts
50the bit being of roller type
52with chisel- or button-type inserts
E21B 10/5673
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
46characterised by wear resisting parts, e.g. diamond inserts
56Button-type inserts
567with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
5673having a non planar or non circular cutting face
E21B 10/627
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
62characterised by parts, e.g. cutting elements, which are detachable or adjustable
627with plural detachable cutting elements
Applicants
  • NATIONAL OILWELL DHT, L.P. [US]/[US]
Inventors
  • RAHMANI, Reza
  • OMIDVAR, Navid
  • AGHDAM, Afshin Babaie
  • GRAHAM, Ryan Basson
Agents
  • FALESKI, Thaddeus J.
Priority Data
62/453,83602.02.2017US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) DRILL BIT INSERTS AND DRILL BITS INCLUDING SAME
(FR) PARTIES RAPPORTÉES DE TRÉPAN ET TRÉPANS ÉQUIPÉS DESDITES PARTIES RAPPORTÉES
Abstract
(EN) An insert for a drill bit includes a base portion having a central axis and a formation engaging portion. The formation engaging portion includes an elongate peaked ridge, a first flanking surface extending from the peaked ridge, and a second flanking surface extending from the peaked ridge. The first flanking surface is defined by a first curve rotated about a first axis and the second flanking surface is defined by a second curve rotated about a second axis. The first axis and the second axis are disposed in a reference plane that bisects the base portion and contains the central axis of the base portion. The first axis is disposed at a first radius measured in the reference plane and the second axis is disposed at a second radius measured in the reference plane. The first radius is different from the second radius.
(FR) L'invention concerne une partie rapportée pour un trépan, comprenant une partie de base ayant un axe central et une partie de prise de formation. La partie de prise de formation comprend une crête pointue allongée, une première surface latérale s'étendant depuis la crête pointue, et une seconde surface latérale s'étendant depuis la crête pointue. La première surface latérale est délimitée par une première courbe qui tourne autour d'un premier axe et la seconde surface latérale est délimitée par une seconde courbe qui tourne autour d'un second axe. Le premier axe et le second axe sont disposés dans un plan de référence qui divise en deux la partie de base et contient l'axe central de la partie de base. Le premier axe est disposé à un premier rayon mesuré dans le plan de référence et le second axe est disposé à un second rayon mesuré dans le plan de référence. Le premier rayon est différent du second rayon.
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