Particulate reinforced braze alloys for drill bits

Patent metadata

Field	Value
Publication number	US-9987726-B2
Application number	US-201315022300-A
Country	US
Kind code	B2
Filing date	Oct 17, 2013
Priority date	Oct 17, 2013
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

An example drill bit for subterranean drilling operations includes a drill bit body with a blade. The drill bit may further include a cutting element and an alloy affixing the cutting element to the blade. The alloy may include a particulate phase, such as ceramic material or an intermetallic material, that increases the strength of the alloy without significantly affecting the melting point of the alloy.

First claim

What is claimed is:

1. A drill bit for subterranean drilling operations, comprising:
a drill bit body with a blade comprising a pocket;
a cutting element at least partially disposed within the pocket; and
an alloy in a gap between the pocket and the cutting element, the alloy affixing the cutting element to the blade in the pocket, the alloy including a particulate phase comprising particulates comprising an amorphous ceramic material.

2. The drill bit of claim 1 , wherein the particulates comprise at least one of an additional ceramic material and/or an intermetallic material.

3. The drill bit of claim 1 , wherein the ceramic material comprises tungsten carbide.

4. The drill bit of claim 1 , wherein the particulates have a size based, at least in part, on the gap between the pocket and the cutting element.

5. The drill bit of claim 1 , wherein the drill bit comprises a fixed cutter drill bit.

6. The drill bit of claim 1 , wherein the cutting element comprises a polycrystalline diamond compact cutter.

7. The drill bit of claim 1 , wherein the ceramic material comprises an oxide, a carbide, a boride, a nitride, or a silicide.

8. The drill bit of claim 7 , wherein the oxide comprises alumina, beryllia, ceria, or zirconia.

9. The drill bit of claim 7 , wherein the carbide comprises boron carbide or titanium carbide.

10. A method for subterranean drilling, comprising:
introducing a drilling assembly into a borehole within a subterranean formation, wherein the drilling assembly comprises a drill bit; and
the drill bit comprises
a drill bit body with a blade comprising a pocket;
a cutting element at least partially disposed within the pocket; and
an alloy in a gap between the pocket and the cutting element, the alloy affixing the cutting element to the blade in the pocket, the alloy including a particulate phase comprising particulates comprising an amorphous ceramic material; and

rotating the drill bit to extend the borehole.

11. The method of claim 10 , wherein the particulates comprise at least one of a ceramic material and/or an intermetallic material.

12. The method of claim 10 , wherein the ceramic material comprises tungsten carbide.

13. The method of claim 10 , wherein the particulates have a size based, at least in part, on the gap between the pocket and the cutting element.

14. The method of claim 10 , wherein the drill bit comprises a fixed cutter drill bit.

15. The method of claim 10 , wherein the cutting element comprises a polycrystalline diamond compact cutter.

16. The method of claim 10 , wherein the ceramic material comprises an oxide, a carbide, a boride, a nitride, or a silicide.

17. The method of claim 16 , wherein the oxide comprises alumina, beryllia, ceria, or zirconia.

18. The method of claim 16 , wherein the carbide comprises boron carbide or titanium carbide.

Assignees

• Halliburton Energy Services Inc

Inventors

• Olsen Garrett T

Classifications

• B24D3/007 Primary

  the constituent being used as bonding agent between different parts of an abrasive tool · CPC title

• E21B10/567

  with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts · CPC title

• E21B10/54 Primary

  the bit being of the rotary drag type, e.g. fork-type bits · CPC title

• E21B10/42

  Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits (characterised by wear resisting parts E21B10/46; by conduits or nozzles for drilling fluid E21B10/60; by detachable or adjustable parts E21B10/62) · CPC title

• E21B10/573

  characterised by support details, e.g. the substrate construction or the interface between the substrate and the cutting element · CPC title