Patent application number | Description | Published |
20100276208 | HIGH THERMAL CONDUCTIVITY HARDFACING FOR DRILLING APPLICATIONS - A high thermal conductivity hardmetal composition comprising tungsten carbide in a nickel based matrix binder is disclosed. The hardmetal has at least 50 wt % tungsten carbide, the tungsten carbide being composed of at least 50 vol % of spherical particles. The binder material is composed of at least 98.5 wt % of components selected from the group consisting of nickel, boron, and silica, and the binder flux of boron plus silica content ranges from between 3.5 to 10.0 wt % of the binder material. | 11-04-2010 |
20120097457 | POLYCRYSTALLINE DIAMOND CUTTING ELEMENT - A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate. | 04-26-2012 |
20120152622 | In-Situ Boron Doped PDC Element - A polycrystalline diamond compact formed in an in-situ boron-doped process. The in-situ boron-doped process includes consolidating a mixture of diamond crystals and boron-containing alloy via liquid diffusion of boron into diamond crystals at a pressure greater than 5 Gpa and at a temperature greater than the melting temperature of the boron-containing alloy, typically less than about 1450° C. | 06-21-2012 |
20130020136 | High Thermal Conductivity Hardfacing - A hardmetal composition comprises tungsten carbide in an amount greater than 50 weight percent of the hardmetal composition. In addition, the hardmetal composition comprises a binder material consisting of at least 90 weight percent nickel, a binder flux between 3.5 to 10.0 weight percent chosen from the group consisting of boron and silicon, and less than 1.0 weight percent other components. | 01-24-2013 |
20130068741 | LASER HARDENED SURFACE FOR WEAR AND CORROSION RESISTANCE - A method of laser hardening comprises irradiating a surface of a component with a laser beam to form a first band of irradiated material, irradiating the surface of the component with the laser beam to form a second band of irradiated material that overlaps the first band of irradiated material, where the first band and the second band have a pitch to width ratio of between about 0.5 and about 0.78. | 03-21-2013 |
20130149182 | Reinforced Stators and Fabrication Methods - A stator for a progressive cavity pump or motor comprises a tubular housing having a central axis. In addition, the stator comprises a stator insert coaxially disposed within the housing. The stator insert has a radially outer surface that engages the housing and a radially inner surface defining a helical-shaped through bore extending axially through the stator insert. The stator insert includes an insert body and an insert liner attached to the insert body. The insert body is radially positioned between the housing and the insert liner. The insert body comprises a reinforcement structure and a plurality of voids dispersed within the reinforcement structure. | 06-13-2013 |
20150075877 | POLYCRYSTALLINE DIAMOND CUTTING ELEMENT - A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate. | 03-19-2015 |
20150122552 | Hard-Facing for Downhole Tools and Matrix Bit Bodies with Enhanced Wear Resistance and Fracture Toughness - A composite material and a methods of making and using the composite material, wherein the composite material provides improved wear resistance and fracture toughness to hard-facing and matrix materials for down hole drilling tools. | 05-07-2015 |