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1. WO2007089590 - POLYCRYSTALLINE ABRASIVE COMPOSITE CUTTER

Publication Number WO/2007/089590
Publication Date 09.08.2007
International Application No. PCT/US2007/002180
International Filing Date 26.01.2007
IPC
E21B 10/36 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
36Percussion drill bits
CPC
B22F 2005/001
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
5Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
001Cutting tools, earth boring or grinding tool other than table ware
B22F 2999/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
2999Aspects linked to processes or compositions used in powder metallurgy
B22F 7/062
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
7Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting ; wherein at least one part is obtained by sintering or compression
06of composite workpieces or articles from parts, e.g. to form tipped tools
062involving the connection or repairing of preformed parts
B33Y 80/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
80Products made by additive manufacturing
C22C 26/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
26Alloys containing diamond ; or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
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
  • UNIVERSITY OF UTAH RESEARCH FOUNDATION [US]/[US] (AllExceptUS)
  • FANG, Zhigang, Z. [US]/[US] (UsOnly)
  • JOHNSON, Stephen, Curtis [US]/[US] (UsOnly)
  • ZHANG, Haibo [CN]/[US] (UsOnly)
Inventors
  • FANG, Zhigang, Z.
  • JOHNSON, Stephen, Curtis
  • ZHANG, Haibo
Agents
  • WESTERN, M., Wayne
Priority Data
60/762,79426.01.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) POLYCRYSTALLINE ABRASIVE COMPOSITE CUTTER
(FR) tranchant composite abrasif polycristallin
Abstract
(EN)
A polycrystalline abrasive composite cutter, including a tool body with a top cutting surface and a flank surface. The composite cutter, joined to a substrate, constitute a shear cutter for a PDC bit, roller-cone bit insert, or other tool that can be highly useful for petroleum drilling or other applications. The body of the polycrystalline abrasive composite cutter includes a plurality of polycrystalline abrasive layers (90) and a plurality of arresting layers (100). The polycrystalline abrasive layers (90) and the arresting layers (100) are arranged to alternate throughout the tool body in a direction normal to the top cutting surface (92) and in a direction normal to a flank surface (94). According to the design, the arresting layers (100) can be oriented so as to substantially arrest crack propagation through the polycrystalline abrasive material.
(FR)
L'invention concerne un tranchant composite abrasif polycristallin, comprenant un corps d'outil avec une surface de découpe supérieure et une surface latérale. Le tranchant composite, relié à un substrat, constitue un tranchant de cisaillement pour un trépan PDC, une insertion de trépan de cône-rouleau ou un autre outil qui peut être très utile pour le forage pétrolier ou d'autres applications. Le corps du tranchant composite abrasif polycristallin comprend une pluralité de couches abrasives polycristallines (90) et une pluralité de couches d'arrêt (100). Les couches abrasives polycristallines (90) et les couches d'arrêt (100) sont agencées en alternance sur le corps de l'outil dans une direction normale à la surface de découpe supérieure (92) et dans une direction normale à une surface latérale (94). Selon le modèle, les couches d'arrêt (100) peuvent être orientées de façon à arrêter sensiblement une propagation de fissures à travers le matériau abrasif polycristallin.
Also published as
Latest bibliographic data on file with the International Bureau