# US 9,752,204 B2 · Precipitation hardened matrix drill bit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,752,204 B2 - Document ID: US9752204B2 - Status: Granted - Kind: B2 - Application number: 14/406,093 - Filed: 2014-02-11 - Published: 2016-09-08 - Granted: 2017-09-05 - Earliest claimed: 2014-02-11 - Assignees: Halliburton Energy Services, Inc. - Applicants: Halliburton Energy Services, Inc. - Inventors: Daniel Brendan Voglewede; Garrett T. Olsen - Web page: https://patentgrep.com/patent/US9752204B2 ## CPC - C21D 1/18: Hardening (C21D1/02 takes precedence); Quenching with or without subsequent tempering (quenching devices C21D1/62) - E21B 10/42: 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) - E21B 10/54: the bit being of the rotary drag type, e.g. fork-type bits - E21B 10/56: Button-type inserts (E21B10/52 takes precedence) - C21D: MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING (surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by this subclass C23F17/00; unidirectional solidification of eutectic materials or unidirectional demixing of eutectoid materials C30B) - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## 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. ## Claims ### Claim 1 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, wherein the matrix particles include first matrix particles having a diameter greater than or equal to five microns and second matrix particles having a diameter less than five microns, and the second matrix particles are less than 5% by weight of a total of the first matrix particles and the second matrix particles. ### Claim 2 (depends on 1) The drill bit of claim 1, wherein the diameter of at least some of the matrix particles is 100 microns to 1000 microns. ### Claim 3 (depends on 1) The drill bit of claim 1, wherein at least some of the second matrix particles have a diameter less than 1 micron. ### Claim 4 (depends on 1) The drill bit of claim 1, wherein the second matrix particles are less than 1% by weight of a total of the first matrix particles and the second matrix particles. ### Claim 5 (depends on 1) The drill bit of claim 1, wherein the precipitated intermetallic particles include a transition metal. ### Claim 6 (depends on 1) The drill bit of claim 1, wherein the precipitated intermetallic particles include at least two of manganese, nickel, copper, aluminum, titanium, iron, chromium, zinc, or vanadium. ### Claim 7 (depends on 1) The drill bit of claim 1, wherein the precipitated intermetallic particles include at least one of: CuM or Cu3M, wherein M is a transition metal selected from the group consisting of manganese, nickel, aluminum, titanium, iron, chromium, zinc, and vanadium. ### Claim 8 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, wherein the matrix particles include first matrix particles having a diameter greater than or equal to five microns and second matrix particles having a diameter less than five microns, and the second matrix particles are less than 5% by weight of a total of the first matrix particles and the second matrix particles.