US Synthetic Corporation

Halliburton Energy Services, Inc.

Debkumar Mukhopadhyay

Kenneth Eugene Bertagnolli

Michael Alexander Vail

Jason Keith Wiggins

Jiang Qian

Jair Jahaziel Gonzalez

David Paul Miess

Brandon Paul Linford

Cody William Knuteson

Mohammad N Sani

Kevin Duy Nguyen

Paul Douglas Jones

Shawn Casey Scott

Mark Pehrson Chapman

Damon Bart Crockett

Ronald W Ward

Stephen Rudger Adams

Andrew E Dadson

Seth Garrett Anderle

Greg Carlos Topham

Robert W Arfele

Renato Ventura

Brian Atkins

Nicholas Christensen

Ram L Ladi

Brent R Eddy

Craig Hodges Cooley

C Eugene McMurray

Arnold D Cooper

Amy Leigh Rodriguez

S Barrett Peterson

Daren Nathaniel Heaton

Edwin Sean Cox

Robert J Farr

Jed Clarke

Daniel Preston Wilding

Kevin Alexander Shirley

David P Miess

Michel Vail

Kenneth E Bertagnolli

Michael A Vail

Jason K Wiggins

Embodiments relate to a polycrystalline diamond compact ('PDC') including a polycrystalline diamond (“PCD”) table bonded to a cemented carbide substrate including tungsten carbide grains having a fine average grain size to provide one or more of enhanced wear resistance, corrosion resistance, or erosion resistance, and a PDC with enhanced impact resistance. In an embodiment, a PDC includes a cemented carbide substrate having a cobalt-containing cementing constituent cementing tungsten carbide grains together exhibiting an average grain size of about 1.5 μm or less. The substrate includes an interfacial surface and a depletion zone depleted of the cementing constituent that extends inwardly from the interfacial surface to a depth of, for example, about 30 μm to about 60 μm. The PDC includes a PCD table bonded to the interfacial surface of the substrate. The PCD table includes diamond grains bonded together exhibiting an average grain size of about 40 μm or less.

Polycrystalline diamond compacts including a cemented carbide substrate

Embodiments disclosed herein relate to polycrystalline diamond compacts that have a substrate including a cementing constituent constituting less than 13 weight percent (wt %) of the substrate, the cementing constituent including a cobalt alloy having and at least one alloying element, wherein the at least one alloying element constitutes less than 12 wt % of the substrate and wherein the cobalt constitutes less than 12 wt % of the substrate; and methods of making the same.

Polyscrystalline diamond compact including erosion and corrosion resistant substrate

Embodiments of the invention relate to polycrystalline diamond compacts ('PDC') exhibiting enhanced diamond-to-diamond bonding. In an embodiment, a PDC includes a polycrystalline diamond (“PCD”) table bonded to a substrate. At least a portion of the PCD table includes a plurality of diamond grains defining a plurality of interstitial regions. The plurality of interstitial regions includes a metal-solvent catalyst. The plurality of diamond grains exhibit an average grain size of about 30 μm or less. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit an average electrical conductivity of less than about 1200 S/m. Other embodiments are directed to PCD, employing such PCD, methods of forming PCD and PDCs, and various applications for such PCD and PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

Polycrystalline diamond, polycrystalline diamond compacts, methods of making same, and applications

Embodiments of the invention relate to polycrystalline diamond ('PCD') exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PCD includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteds (“Oe”) or more and a specific magnetic saturation of about 15 Gauss·cm/grams (“G·cm/g”) or less. Other embodiments are directed to polycrystalline diamond compacts (“PDCs”) employing such PCD, methods of forming PCD and PDCs, and various applications for such PCD and PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

Polycrystalline diamond compacts

Embodiments disclosed herein are directed to assemblies for forming polycrystalline diamond compacts and methods for forming the polycrystalline diamond compacts with the assemblies. An example assembly includes a substrate and a diamond material positioned adjacent to an interfacial surface of the substrate. The assembly also includes an enclosure defining a chamber. The substrate and the diamond material are disposed in the chamber. In an embodiment, the assembly includes a sealant and the sealant includes at least one of cobalt or a copper-nickel alloy. In an embodiment, the substrate includes a concave bottom surface that is opposite the interfacial surface.

Assemblies and methods of forming polycrystalline diamond using such assemblies

In an embodiment, a method of fabricating a polycrystalline diamond compact is disclosed. The method includes sintering a plurality of diamond particles in the presence of a metal-solvent catalyst to form a polycrystalline diamond body; leaching the polycrystalline diamond body to at least partially remove the metal-solvent catalyst therefrom, thereby forming an at least partially leached polycrystalline diamond body; and subjecting an assembly of the at least partially leached polycrystalline diamond body and a cemented carbide substrate to a high-pressure/high-temperature process at a pressure to infiltrate the at least partially leached polycrystalline diamond body with an infiltrant. The pressure of the high-pressure/high-temperature process is less than that employed in the act of sintering of the plurality of diamond particles.

Polycrystalline diamond compact

Embodiments of the invention relate to polycrystalline diamond compact ('PDC') including a polycrystalline diamond ('PCD') table that bonded to a cobalt-nickel alloy cemented carbide substrate. The cobalt-nickel alloy cemented carbide substrate provides both erosion resistance and corrosion resistance to the cemented carbide substrate. In an embodiment, a PDC includes a cemented carbide substrate including cobalt-nickel alloy cementing constituent. The PDC further includes a PCD table bonded to the cemented carbide substrate.

Polycrystalline diamond compacts, methods of making same, and applications therefor

Embodiments relate to a polycrystalline diamond compact ('PDC') including a polycrystalline diamond ('PCD') table having at least two regions and being bonded to a fine grained cemented tungsten carbide substrate. In an embodiment, a PDC includes a cemented carbide substrate having a cobalt-containing cementing constituent cementing tungsten carbide grains together that exhibit an average grain size of about 1.5 &#x3bc;m or less, and a PCD table having at least one upper region including diamond grains exhibiting an upper average grain size and at least one lower region adjacent to the upper region a lower average grain size that may be at least two times greater than the upper average grain size. The cemented carbide substrate includes an interfacial surface and a depletion zone depleted of the cementing constituent that extends inwardly from the interfacial surface to a depth of, for example, about 30 &#x3bc;m to about 60 &#x3bc;m.

Polycrystalline diamond compacts including a cemented carbide substrate and applications therefor

Embodiments relate to a polycrystalline diamond compact ('PDC') including a polycrystalline diamond ('PCD') table bonded to a cemented carbide substrate including tungsten carbide grains having a fine average grain size to provide one or more of enhanced wear resistance, corrosion resistance, or erosion resistance, and a PDC with enhanced impact resistance. In an embodiment, a PDC includes a cemented carbide substrate having a cobalt-containing cementing constituent cementing tungsten carbide grains together exhibiting an average grain size of about 1.5 &#x3bc;m or less. The substrate includes an interfacial surface and a depletion zone depleted of the cementing constituent that extends inwardly from the interfacial surface to a depth of, for example, about 30 &#x3bc;m to about 60 &#x3bc;m. The PDC includes a PCD table bonded to the interfacial surface of the substrate. The PCD table includes diamond grains bonded together exhibiting an average grain size of about 40 &#x3bc;m or less.

Embodiments relate to polycrystalline diamond compacts ('PDCs') including a polycrystalline diamond ('PCD') table in which a metal-solvent catalyst is alloyed with at least one alloying element to improve thermal stability of the PCD table. In an embodiment, a PDC includes a substrate and a PCD table bonded to the substrate. The PCD table includes diamond grains defining interstitial regions. The PCD table includes an alloy comprising at least one Group VIII metal and at least one metallic alloying element that lowers a temperature at which melting of the at least one Group VIII metal begins. The alloy includes one or more solid solution phases comprising the at least one Group VIII metal and the at least one metallic alloying element and one or more intermediate compounds comprising the at least one Group VIII metal and the at least one metallic alloying element.

Polycrystalline diamond compact, and related methods and applications

Embodiments of the invention relate to polycrystalline diamond compacts ('PDCs') and methods of fabricating polycrystalline diamond tables and PDCs in a manner that facilitates removal of metal-solvent catalyst used in the manufacture of polycrystalline diamond tables of such PDCs.

Polycrystalline diamond compacts and related methods

Growing community of inventors

Sandy, UT, United States of America

Debkumar Mukhopadhyay