Back to results
US 2016/0258031 A1Published application
Precipitation hardened matrix drill bit
AssigneeHalliburton Energy Services, Inc.
InventorsDaniel Brendan Voglewede, Garrett T. Olsen
Life of this patent
Estimating the term…
Abstract
A drill bit may include a matrix bit body and a plurality of cutting elements coupled to an exterior portion of the matrix bit body, wherein the matrix bit body includes matrix particles and precipitated intermetallic particles dispersed in a binder, at least some of the matrix particles having a diameter of 50 microns or greater, and at least some of the precipitated intermetallic particles having at least one dimension of 1 micron to 30 microns.
Claims20
A drill bit comprising:
- a matrix bit body having matrix particles and precipitated intermetallic particles dispersed in a binder, at least some of the matrix particles having a diameter of 50 microns or greater, and at least some of the precipitated intermetallic particles having at least one dimension of 1 micron to 30 microns;
- and
- a plurality of cutting elements coupled to an exterior portion of the matrix bit body.
A method comprising:
- liquefying a binder material to provide a liquefied binder;
- infiltrating matrix particles disposed in a drill bit mold with the liquefied binder, at least some of the matrix particles having a diameter of 50 microns or greater;
- cooling the matrix particles infiltrated with the binder material to form a hard composite material;
- and
- heat treating the hard composite material at 300° C. to 400° C. for 1 hour to 5 hours to yield a precipitation hardened composite material having the matrix particles and the precipitated intermetallic particles dispersed in the binder material, wherein at least some of the precipitated intermetallic particles have at least one dimension being 1 micron to 30 microns.
2 more elements
A drilling assembly comprising:
- a drill string extendable from a drilling platform and into a wellbore;
- a pump fluidly connected to the drill string and configured to circulate a drilling fluid into the drill string and through the wellbore;
- and
- a drill bit attached to an end of the drill string, the drill bit having a matrix bit body and a plurality of cutting elements coupled to an exterior portion of the matrix bit body, wherein the matrix bit body includes matrix particles and precipitated intermetallic particles dispersed in a binder, at least some of the matrix particles having a diameter of 50 microns or greater, and at least some of the precipitated intermetallic particles having at least one dimension of 1 micron to 30 microns.
1 more element
Dependencies are inferred from the claim text.