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1. WO1999028589 - CONTINUOUS SELF-SHARPENING CUTTING ASSEMBLY FOR USE WITH DRILLING SYSTEMS

Publication Number WO/1999/028589
Publication Date 10.06.1999
International Application No. PCT/US1998/025446
International Filing Date 01.12.1998
Chapter 2 Demand Filed 01.07.1999
IPC
E21B 10/00 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
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
CPC
E21B 10/006
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
006providing a cutting edge which is self-renewable during drilling
E21B 10/567
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
Applicants
  • RADTKE, Robert, Paul [US]/[US]
Inventors
  • RADTKE, Robert, Paul
Agents
  • PARKHURST, Todd, S.
Priority Data
60/067,13602.12.1997US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) CONTINUOUS SELF-SHARPENING CUTTING ASSEMBLY FOR USE WITH DRILLING SYSTEMS
(FR) ENSEMBLE DE COUPE A AUTO-AIGUISAGE CONTINU SERVANT DANS DES SYSTEMES DE FORAGE
Abstract
(EN) A continuously self-sharpening cutting assembly (13) for use with a petroleum well or like drilling system is disclosed. The cutting assembly (13) comprises a cutting table (21) preferably made of PDC or TSP diamond material and a supporting stud (22) which can be formed of tungsten carbide. The cutting table (21) and stud (22) are provided with aligned or registered voids or holes (36, 60). In use, the cutting table (21) and stud wear (22) away, but the voids (36, 60) provide a continuously self-sharpening action.
(FR) L'invention concerne un ensemble de coupe à auto-aiguisage continu (13) servant dans un puits de pétrole ou un système de forage analogue. L'ensemble de coupe (13) comporte une table de coupe (21) constituée, de préférence, d'un matériau en diamant polycristallin ou en diamant polycristallin thermiquement stable, ainsi qu'un goujon de support (22) pouvant être formé en carbure de tungstène. La table de coupe (21) et le goujon (22) sont pourvus de cavités ou orifices alignés ou d'alignement (36, 60). Lors de l'utilisation, la table de coupe (21) et le goujon (22) s'usent, mais les cavités (36, 60) assurent une action d'auto-aiguisage continu.
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US09555712This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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