Title:
TECHNIQUES FOR FORMING POLYCRYSTALLINE, SUPERABRASIVE MATERIALS, AND RELATED METHODS, MATERIALS, CUTTING ELEMENTS. AND EARTH-BORING TOOLS
Document Type and Number:
WIPO Patent Application WO/2021/221754
Kind Code:
A3
Abstract:
Methods of making cutting elements for earth-boring tools may involve intermixing discrete particles of superabrasive material with a binder material in a solvent to form a slurry. The slurry may be vacuum dried or spray dried to disaggregate individual precursor agglomerates including a group of discrete particles suspended in a discrete quantity of the binder material from one another. The precursor agglomerates may be sintered while exposing the precursor agglomerates to a quantity of catalyst material to form agglomerates including discrete quantities of poly crystalline, superabrasive material while inhibiting formation of inter-granular bonds among the agglomerates themselves. The agglomerates may subsequently be sintered while exposing the agglomerates to another quantity of catalyst material to form a table for the cutting element including inter-granular bonds among adjacent grains of the agglomerates.
More Like This:
| WO/1998/013572 | COMBINATION MILLING TOOL AND DRILL BIT |
| WO/2011/042715 | CUTTING TOOL INSERTS |
Inventors:
ROBERTSON ANDREW (US)
BIRD MARC (US)
BIRD MARC (US)
Application Number:
PCT/US2021/017466
Publication Date:
January 06, 2022
Filing Date:
February 10, 2021
Export Citation:
Assignee:
BAKER HUGHES OILFIELD OPERATIONS LLC (US)
International Classes:
E21B10/567; B22F5/00; B22F9/04
Foreign References:
| EP2032243B1 | 2014-01-01 | |||
| US4797241A | 1989-01-10 | |||
| US8151911B1 | 2012-04-10 | |||
| US9889540B2 | 2018-02-13 | |||
| US10066441B2 | 2018-09-04 |
Attorney, Agent or Firm:
WATSON, James, C. et al. (US)
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