Patent application number | Description | Published |
20100038832 | Rotary holding device for gripping tool material at elevated temperatures through multiple collar assembly - A tool is provided that is capable of friction stir processing, friction stir mixing, and friction stir welding of high melting temperature and low melting temperature materials, wherein the collar is now divided into at least an inner and an outer collar coupled to the shank and the FSW tip, wherein new thermal barriers enable expansion of the inner collar to be directed inward to thereby create compression on the FSW tip instead of allowing the FSW tip to become loose in the tool at elevated temperatures. | 02-18-2010 |
20100300767 | Diamond Bonded Construction with Improved Braze Joint - Diamond bonded constructions comprise a body comprising a plurality of bonded together diamond grains with interstitial regions disposed between the grains that are substantially free of the catalyst material used to initially sinter the body. A metallic substrate is attached to the body, and a braze joint is interposed between the body and the substrate. The body is metallized to include a metallic material disposed along a substrate attachment surface in contact with the braze joint, wherein the metallic material is different from the braze joint material. The metallic material may exist within a region of the body extending fully or partially into the body, and/or may exist as a layer extending away from the substrate attachment surface. The body includes a working surface characterized by empty interstitial regions or by interstitial regions filled with an infiltrant material, wherein the infiltrant material is different from the metallizing material. | 12-02-2010 |
20110031032 | DIAMOND TRANSITION LAYER CONSTRUCTION WITH IMPROVED THICKNESS RATIO - An insert for a drill bit may include a metallic carbide body; an outer layer of polycrystalline diamond material on the outermost end of the insert, the polycrystalline diamond material comprising a plurality of interconnected first diamond grains and a first binder material in interstitial regions between the interconnected first diamond grains; and at least two transition layers between the metallic carbide body and the outer layer, the at least two transition layers comprising: an outermost transition layer comprising a composite of second diamond grains, first metal carbide or carbonitride particles, and a second binder material; and an innermost transition layer comprising a composite of third diamond grains, second metal carbide or carbonitride particles, and a third binder material wherein a thickness of the outer layer is lesser than that of each of the at least two transition layers. | 02-10-2011 |
20110031033 | HIGHLY WEAR RESISTANT DIAMOND INSERT WITH IMPROVED TRANSITION STRUCTURE - An insert for a drill bit may include a metallic carbide body; an outer layer of polycrystalline diamond material on the outermost end of the insert, the polycrystalline diamond material comprising a plurality of interconnected first diamond grains and a first binder material in interstitial regions between the interconnected first diamond grains; and at least one transition layer between the metallic carbide body and the outer layer, the at least one transition layer comprising a composite of second diamond grains, first metal carbide particles, and a second binder material, wherein the second diamond grains have a larger grain size than the first diamond grains. | 02-10-2011 |
20110031037 | POLYCRYSTALLINE DIAMOND MATERIAL WITH HIGH TOUGHNESS AND HIGH WEAR RESISTANCE - A cutting element that includes a substrate; and an outer layer of polycrystalline diamond material disposed upon the outermost end of the cutting element, wherein the polycrystalline diamond material: a plurality of interconnected diamond particles; and a plurality of interstitial regions disposed among the bonded diamond particles, wherein the plurality of interstitial regions contain a plurality of metal carbide phases and a plurality of metal binder phases together forming a plurality of metallic phases, wherein the plurality of metal carbide phases are formed from a plurality of metal carbide particles; wherein the plurality of interconnected diamond particles form at least about 60 to at most about 80% by weight of the polycrystalline diamond material; and wherein the plurality of metal carbide phases represent at least 50% by weight of the plurality of metallic phases is disclosed. | 02-10-2011 |
20120125696 | Polycrystalline Diamond Constructions Having Optimized Material Composition - Diamond bonded constructions include a diamond body comprising intercrystalline bonded diamond and interstitial regions. The body has a working surface and an interface surface, and may be joined to a metallic substrate. The body has a gradient diamond volume content greater about 1.5 percent, wherein the diamond content at the interface surface is less than 94 percent, and increases moving toward the working surface. The body may include a region that is substantially free of a catalyst material otherwise disposed within the body and present in a gradient amount. An additional material may be included within the body and be present in a changing amount. The body may be formed by high-pressure HPHT processing, e.g., from 6,200 MPa to 10,000 MPa, to produce a sintered body having a characteristic diamond volume fraction v. average grain size relationship distinguishable from that of diamond bonded constructions form by conventional-pressure HPHT processing. | 05-24-2012 |
20140215927 | POLYCRYSTALLINE DIAMOND CONSTRUCTIONS HAVING OPTIMIZED MATERIAL COMPOSITION - Diamond bonded constructions include a diamond body comprising intercrystalline bonded diamond and interstitial regions. The body has a working surface and an interface surface, and may be joined to a metallic substrate. The body has a gradient diamond volume content greater about 1.5 percent, wherein the diamond content at the interface surface is less than 94 percent, and increases moving toward the working surface. The body may include a region that is substantially free of a catalyst material otherwise disposed within the body and present in a gradient amount. An additional material may be included within the body and be present in a changing amount. The body may be formed by high-pressure HPHT processing, e.g., from 6,200 MPa to 10,000 MPa, to produce a sintered body having a characteristic diamond volume fraction v. average grain size relationship distinguishable from that of diamond bonded constructions form by conventional-pressure HPHT processing. | 08-07-2014 |
20140291037 | DIAMOND BONDED CONSTRUCTION WITH IMPROVED BRAZE JOINT - Diamond bonded constructions comprise a body comprising a plurality of bonded together diamond grains with interstitial regions disposed between the grains that are substantially free of the catalyst material used to initially sinter the body. A metallic substrate is attached to the body, and a braze joint is interposed between the body and the substrate. The body is metallized to include a metallic material disposed along a substrate attachment surface in contact with the braze joint, wherein the metallic material is different from the braze joint material. The metallic material may exist within a region of the body extending fully or partially into the body, and/or may exist as a layer extending away from the substrate attachment surface. The body includes a working surface characterized by empty interstitial regions or by interstitial regions filled with an infiltrant material, wherein the infiltrant material is different from the metallizing material. | 10-02-2014 |
Patent application number | Description | Published |
20080230280 | POLYCRYSTALLINE DIAMOND HAVING IMPROVED THERMAL STABILITY - PCD constructions include a PCD body comprising a polycrystalline matrix region, a first region that includes a replacement material positioned remote from a body surface, and a second region that is substantially free of the replacement material and that extends a depth from the body surface. The PCD construction can further include a substrate that is attached to the body. The PCD body is formed by removing a solvent catalyst material used to form the body, replacing the removed solvent catalyst material with a replacement material, and then removing the replacement material from a region of the body to thereby form the second region. The replacement material can be introduced into the PCD body during a HPHT process, and the substrate may or may not be the source of the noncatalyzing material. | 09-25-2008 |
20080302579 | POLYCRYSTALLINE DIAMOND CUTTING ELEMENTS HAVING IMPROVED THERMAL RESISTANCE - Polycrystalline diamond constructions of this invention have a polycrystalline diamond body and a substrate attached thereto, wherein the diamond body has a material microstructure comprising a plurality of bonded-together diamond crystals forming a polycrystalline matrix phase, and second phase formed from different types of materials or sintering aids designed to reduce or eliminate the amount of free Group VIII elements therein. The use of such materials and the reduction and/or elimination of free Group VIII elements, in addition to graphitization, facilitates the sintering the construction at high pressure/high temperature conditions, e.g., greater than about 65 Kbar, to produce a construction having a high degree of thermal stability and/or thermal resistance when compared to conventional PCD materials. Polycrystalline diamond constructions of this invention are preferably configured as cutting elements that are disposed on drill bits used for drilling subterranean earthen formations. | 12-11-2008 |
Patent application number | Description | Published |
20090030658 | PDC DRILL BIT USING OPTIMIZED SIDE RAKE ANGLE - A fixed cutter drill bit and a method for designing a fixed cutter drill bit includes simulating the fixed cutter drill bit drilling in an earth formation. A performance characteristic of the simulated fixed cutter drill bit is determined. A side rake angle distribution of the cutters is adjusted at least along a cone region of a blade of the fixed cutter drill bit to change the performance characteristic of the fixed cutter drill bit. | 01-29-2009 |
20100095602 | TECHNIQUES AND MATERIALS FOR THE ACCELERATED REMOVAL OF CATALYST MATERIAL FROM DIAMOND BODIES - A method for making a thermally stable cutting element may include forming an acid mixture containing two different acid species by combining an acid solution and at least one acid-forming compound, wherein the at least one acid-forming compound is provided in solid form, and wherein the at least one acid-forming compound produces an acid that is different than the acid solution; treating at least a portion of a sintered diamond body by placing the sintered diamond body in the acid mixture, wherein the sintered diamond body comprises: a matrix phase of bonded-together diamond grains; a plurality of interstitial regions dispersed within the matrix phase; and a metal material disposed within a plurality of the interstitial regions; wherein the treating removes the metal material from at least a portion of the plurality of interstitial regions; and removing the sintered diamond body from the acid mixture after a predetermined length of time, wherein at least a portion of the diamond body removed from the acid mixture is substantially free of the metal material and is a thermally stable diamond body. | 04-22-2010 |
20110132668 | POLYCRYSTALLINE DIAMOND CUTTING ELEMENT STRUCTURE - A cutting element may include a substrate having an interface surface; an ultrahard material layer disposed on the interface surface; and the interface surface comprising a plurality of surface features, wherein at least one of the plurality of surface features intersects a neighboring surface feature at a height that is intermediate an extremity of the at least one of the plurality of surface features and a base of the at least one of the plurality of surface features. | 06-09-2011 |
20110247278 | POLYCRYSTALLINE DIAMOND CONSTRUCTIONS HAVING IMPROVED THERMAL STABILITY - A method for making a polycrystalline diamond construction is disclosed, which includes the steps of treating a polycrystalline diamond body having a plurality of bonded together diamond crystals and a solvent catalyst material to remove the solvent catalyst material therefrom, wherein the solvent catalyst material is disposed within interstitial regions between the bonded together diamond crystals, replacing the removed solvent catalyst material with a replacement material, and treating the body having the replacement material to remove substantially all of the replacement material from a first region of the body extending a depth from a body surface, and allowing the remaining amount of the replacement material to reside in a second region of the body that is remote from the surface. | 10-13-2011 |
20120132470 | APPARATUS AND METHOD FOR CONTROLLING OR LIMITING ROTOR ORBIT IN MOVING CAVITY MOTORS AND PUMPS - A moving cavity motor or pump, such as a mud motor, comprising: a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator. | 05-31-2012 |
20120227332 | DEEP LEACH PRESSURE VESSEL FOR SHEAR CUTTERS - A system for producing thermally stable cutting elements may include a heat source, a pressure vessel, at least one polycrystalline diamond body attached to a carbide substrate, and a leaching agent is disclosed, wherein the heat source includes a container comprising at least one receiving mechanism and at least one retention mechanism, and wherein the carbide substrate is disposed in the at least one receiving mechanism of the pressure vessel, and wherein the leaching agent is disposed in the pressure vessel, and wherein the leaching agent removes the catalyzing material from the interstitial spaces interposed between the diamond particles of the at least one polycrystalline diamond body, and wherein the at least one retention mechanism of the pressure vessel seals at least a portion of the carbide substrate into the at least one receiving mechanism and prevents the leaching agent from contacting at least a portion of the carbide substrate. | 09-13-2012 |
20140007512 | TECHNIQUES AND MATERIALS FOR THE ACCELERATED REMOVAL OF CATALYST MATERIAL FROM DIAMOND BODIES - A method for making a thermally stable cutting element may include forming an acid mixture containing two different acid species by combining an acid solution and at least one acid-forming compound, wherein the at least one acid-forming compound is provided in solid form, and wherein the at least one acid-forming compound produces an acid that is different than the acid solution; treating at least a portion of a sintered diamond body by placing the sintered diamond body in the acid mixture, wherein the sintered diamond body comprises: a matrix phase of bonded-together diamond grains; a plurality of interstitial regions dispersed within the matrix phase; and a metal material disposed within a plurality of the interstitial regions; wherein the treating removes the metal material from at least a portion of the plurality of interstitial regions; and removing the sintered diamond body from the acid mixture after a predetermined length of time, wherein at least a portion of the diamond body removed from the acid mixture is substantially free of the metal material and is a thermally stable diamond body. | 01-09-2014 |
20140095134 | PDC DRILL BIT WITH CUTTER DESIGN OPTIMIZED WITH DYNAMIC CENTERLINE ANALYSIS AND HAVING DYNAMIC CENTERLINE TRAJECTORY - A method for designing a fixed cutter drill bit includes simulating the fixed cutter drill bit drilling in an earth formation, determining a dynamic centerline trajectory of the drill bit, and adjusting at least one design parameter based upon the graphical display of at least the dynamic centerline trajectory. To improve performance, the method can include graphically displaying the dynamic centerline trajectory and/or repeating the simulating, determining, displaying and adjusting to change a simulated performance of the fixed cutter drill bit. A drill bit design may be selected and a drill bit may be made according to the design resulting from the method of designing. | 04-03-2014 |
20140262217 | Wear Resistant Coatings For Radial Bearings and Downhole Tools - Abrasion resistant coatings useful for improving abrasive wear and/or corrosion resistance in radial bearings and downhole tools exposed to drilling forces as well as abrasive and/or corrosive drilling fluids. An abrasion resistant coating is disposed on at least one surface of a component body to increase the resistance of the component to abrasive wear and corrosion. The abrasion resistant coating includes a plurality of spherical tungsten cobalt carbide particles and a plurality of tungsten carbide particles. At least 65% by volume of the spherical tungsten cobalt carbide particles have a diameter of less than about 25 microns. | 09-18-2014 |
20140332275 | Positive Displacement Motor With Radially Constrained Rotor Catch - A moving cavity motor or pump, such as a mud motor, comprising: a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator, where the apparatus for constraining is operable with the rotor catch. | 11-13-2014 |
20150022051 | Fiber Reinforced Elastomeric Stator - Embodiments disclosed herein relate to a composition useful for forming stator or a portion thereof. The composition may include: a curable elastomer; a fiber fibrous compound; a fiber dispersion compound; and optionally carbon black. | 01-22-2015 |