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US 2026/0193746 A1Published application
Drill bit compact and method including graphene
AssigneeNational Oilwell Varco, L.P.
InventorsBiju P. Kumar, Richard Rivera, JR., Tom Scott Roberts, Brad Ivie, Richard Jordan
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Abstract
A polycrystalline composite tool component and associated methods are disclosed. In one example plurality of diamond particles are coated with a conforming catalyst metal coating and a plurality of graphene particles. Various asymmetric distributions of graphene particles are shown that provide a variety of material properties.
Claims16
1-31. (canceled)
A composite tool component, comprising:
- a plurality of diamond particles;
- a plurality of graphene particles located within the plurality of diamond particles;
- and
- a conforming catalyst metal coating the diamond particles and the graphene particles with a consistent thickness about the diamond particles and the graphene particles.
1 more element
A polycrystalline diamond compact (PDC), comprising:
- a substrate;
- a polycrystalline diamond layer on one or more surface of the substrate, the polycrystalline diamond layer including:
- a plurality of diamond particles;
- a plurality of graphene particles located within the plurality of diamond particles;
- and
- a catalyst metal coating the diamond particles and the graphene particles with a consistent thickness about the diamond particles and the graphene particles.
3 more elements
A method of forming a composite tool, comprising:
- coating a plurality of diamond particles with a catalyst metal to form coated diamond particles;
- coating a plurality of graphene particles with the catalyst metal to form coated graphene particles;
- mixing the coated diamond particles with the graphene particles;
- and
- sintering the coated diamond particles and coated graphene particles to bind the coated diamond particles and coated graphene particles together.
2 more elements
Dependencies are inferred from the claim text.