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8182778 |
Boron carbide and method for making same
The invention relates to boron carbide and to a method for making the same, as well as to a super-abrasive material and a machine device including said boron carbide. The boron carbide of the...
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8181723 |
Bits and cutting structures
A cutting element for a downhole cutting tool including a support element, a shearing element disposed on said support, wherein the shearing element is disposed proximal to a leading edge of the...
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8172011 |
Cutting element
A method of manufacturing a tool component, which is typically a cutting element or a gauge stone in a rotary drill bit, including a layer of ultra-hard abrasive material bonded to a substrate, the...
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8172012 |
Cutting tool insert and drill bit so equipped
A polycrystalline diamond abrasive cutting element consists generally of a layer of high grade polycrystalline diamond bonded to a cemented carbide substrate. The polycrystalline diamond layer has...
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8157029 |
Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
Cutting elements have substrates including end surfaces. TSP material layers extend over only a portion of the end surfaces or extend into the substrates below the end surfaces. Bits incorporate...
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8151911 |
Polycrystalline diamond compact, methods of fabricating same, and rotary drill bit using same
Embodiments of the present invention relate to superabrasive materials, superabrasive compacts employing such superabrasive materials, and methods of fabricating such superabrasive materials and...
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8147790 |
Methods of fabricating polycrystalline diamond by carbon pumping and polycrystalline diamond products
Embodiments of the invention relate to methods of fabricating polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding by carbon pumping, and PCD and polycrystalline dia...
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8146688 |
Drill bit with prefabricated cuttings splitter and method of making
A downhole drill bit includes, a body, a plurality of cutters attached to the body, and at least one prefabricated splitter having a proximal portion and at least one distal portion. The proximal...
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8122980 |
Rotary drag bit with pointed cutting elements
In one aspect of the invention a rotary drag bit has a bit body intermediate a shank and a working surface. The working surface has a plurality of blades converging at a center of the working...
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8118119 |
Impregnated rotary bit
A drill bit includes a plurality of continuous segments impregnated with diamond that are each mounted to form a corresponding blade. The regions between the blades define a plurality of fluid...
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8113303 |
Modified cutters and a method of drilling with modified cutters
A cutter for a fixed cutter drill bit including a substrate and an ultrahard material layer disposed on an end surface of the substrate, the ultra hard material layer having an upper surface...
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8109349 |
Thick pointed superhard material
In one aspect of the invention, a high impact resistant tool includes a superhard material bonded to a cemented metal carbide substrate at a non-planar interface. The superhard material has a...
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8109350 |
Polycrystalline abrasive composite cutter
A polycrystalline abrasive composite cutter, including a tool body with a top cutting surface and a flank surface. The composite cutter, joined to a substrate, constitute a shear cutter for a PDC...
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8104550 |
Methods for applying wear-resistant material to exterior surfaces of earth-boring tools and resulting structures
Earth-boring tools include wear-resistant materials disposed in at least one recess formed in an exterior surface of a body thereof. Exposed surfaces of the wear-resistant material are...
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8100201 |
Rotary drill bit
A rotary drill bit (10) is provided for drilling a hole in a subsurface formation. The bit body (12) includes a plurality of axially extending ribs (16a, b, c and d) and a flow channel between...
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8100203 |
Diamond impregnated bits and method of using and manufacturing the same
A drill bit that includes a body having a lower end face for engaging a rock formation, the end face having a plurality of raised ribs extending from the face of the bit body and separated by a...
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8083012 |
Diamond bonded construction with thermally stable region
Diamond bonded constructions comprise a polycrystalline diamond body having a matrix phase of bonded-together diamond grains and a plurality of interstitial regions between the diamond grains...
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8080071 |
Polycrystalline diamond compact, methods of fabricating same, and applications therefor
Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) comprising a polycrystalline diamond (“PCD”) table including a catalyst material therein that has been implant...
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8074748 |
Thermally-stable polycrystalline diamond element and compact, and applications therefor such as drill bits
Embodiments of the invention relate to thermally-stable polycrystalline diamond (“PCD”) elements, polycrystalline diamond compacts (“PDCs”), and methods of fabricating such PCD elements and PDCs. I...
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8069935 |
Superabrasive element, and superabrasive compact and drill bit including same
According to various aspects of the present invention, a superabrasive element includes a plurality of superabrasive grains (e.g., as diamond grains and/or cubic boron nitride grains). The...
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8069936 |
Encapsulated diamond particles, materials and impregnated diamond earth-boring bits including such particles, and methods of forming such particles, materials, and bits
Earth-boring tools and components thereof include a particle-matrix composite material having encapsulated diamond particles embedded within a matrix material. Diamonds in the particles comprise...
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8069937 |
Polycrystalline diamond compact including a cemented tungsten carbide substrate that is substantially free of tungsten carbide grains exhibiting abnormal grain growth and applications therefor
Embodiments relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table that is substantially free of defects formed due to abnormal grain growth of tung...
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8071173 |
Methods of fabricating a polycrystalline diamond compact including a pre-sintered polycrystalline diamond table having a thermally-stable region
In an embodiment, a method of fabricating a polycrystalline diamond compact includes forming an assembly including an at least partially leached polycrystalline diamond table that includes a...
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8066087 |
Thermally stable ultra-hard material compact constructions
Thermally stable ultra-hard compact constructions comprise a polycrystalline diamond body substantially free of a catalyst material, and a substrate that is joined thereto. The substrate can be...
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8061454 |
Ultra-hard and metallic constructions comprising improved braze joint
An ultra-hard and metallic construction comprises an ultra-hard component that is attached to a metallic component via a braze joint. The braze joint is interposed between the ultra-hard component...
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8061458 |
Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements
A polycrystalline diamond compact useful for wear, cutting, drilling, drawing and like applications is provided with a first diamond region remote from the working surface which has a metallic...
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8057775 |
Polycrystalline diamond materials, methods of fabricating same, and applications using same
Embodiments relate to methods of fabricating PCD materials by subjecting a mixture that exhibits a broad diamond particle size distribution to a HPHT process, PCD materials so-formed, and PDCs...
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8028774 |
Thick pointed superhard material
A high impact resistant tool includes a superhard material bonded to a cemented metal carbide substrate at a non-planar interface. The superhard material has a substantially pointed geometry with a...
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8028771 |
Polycrystalline diamond constructions having improved thermal stability
Polycrystalline diamond constructions include a diamond body comprising a matrix phase of bonded together diamond crystals formed at high pressure/high temperature conditions with a catalyst...
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8020645 |
Method of fabricating polycrystalline diamond and a polycrystalline diamond compact
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 plu...
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8020643 |
Ultra-hard constructions with enhanced second phase
Ultra-hard constructions include an ultra-hard body having a first region including a polycrystalline matrix first phase and a second phase material interposed therein. The first region is...
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8020644 |
Thermally stable polycrystalline diamond materials, cutting elements incorporating the same and bits incorporating such cutting elements
A cutting element is provided including a substrate and a TSP material layer over the substrate. The TSP material layer includes at least a property having a value that varies through the layer.
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8020640 |
Impregnated drill bits and methods of manufacturing the same
A drill bit that includes a body having a lower end face for engaging a rock formation is disclosed. The end face has a plurality of raised ribs extending from the face of the bit body and...
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8020642 |
Polycrystalline diamond abrasive elements
A polycrystalline diamond abrasive element, particularly a cutting element, comprises a table of polycrystalline diamond bonded to a substrate, particularly a cemented carbide substrate, along a...
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8020641 |
Drill bit with continuously sharp edge cutting elements
A method of optimizing drill bit design and an optimized drill bit for drilling a well into an earth formation comprising a bit body; a number of blades spaced around the bit body, each blade...
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8002859 |
Manufacture of thermally stable cutting elements
A method of forming a thermally stable cutting element that includes disposing at least a portion of a polycrystalline abrasive body containing a catalyzing material to be leached into a leaching...
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7963348 |
Expandable earth boring apparatus using impregnated and matrix materials for enlarging a borehole
A tool for enlarging a borehole that includes an elongated tubular body; at least one movable arm affixed to the tubular body, the at least one movable arm comprising an outer surface formed of at...
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7954570 |
Cutting elements configured for casing component drillout and earth boring drill bits including same
A drill bit includes a bit body having a face on which two different types of cutting elements are disposed, the first type being cutting elements suitable for drilling at least one subterranean...
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7950477 |
Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements
A polycrystalline diamond compact useful for wear, cutting, drilling, drawing and like applications is provided with a first diamond region remote from the working surface which has a metallic...
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7946363 |
Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
Cutting elements are provided having substrates including end surfaces. TSP material layers extend over only a portion of the end surfaces or extend into the substrates below the end surfaces. Bits...
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7946362 |
Matrix drill bits with back raked cutting elements
A matrix drill bit and method of manufacturing a matrix bit having back raked cutting elements is disclosed. In one aspect, a matrix drill bit for well drilling includes a matrix bit body that has...
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7942219 |
Polycrystalline diamond constructions 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...
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7918293 |
Method and system for perceiving a boundary between a first region and a second region of a superabrasive volume
Methods of evaluating a superabrasive volume or a superabrasive compact are disclosed. One method may comprise exposing a superabrasive volume to beta particles and detecting a quantity of...
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7909121 |
Polycrystalline ultra-hard compact constructions
Polycrystalline ultra-hard compact constructions comprise a polycrystalline ultra-hard compact having a polycrystalline ultra-hard body attached to a substrate. A support member is attached to the...
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7874383 |
Polycrystalline diamond insert, drill bit including same, and method of operation
Polycrystalline diamond inserts are disclosed. For example, a polycrystalline diamond insert may comprise a polycrystalline diamond layer affixed to a substrate at an interface. In addition the...
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7866418 |
Rotary drill bit including polycrystalline diamond cutting elements
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 plu...
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7866419 |
Diamond impregnated bits using a novel cutting structure
An insert for a drill bit that includes a plurality of encapsulated particles dispersed in a first matrix material, where the encapsulated particles include a coarse particle encapsulated within a...
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7845438 |
Polycrystalline diamond compacts, methods of fabricating same, and applications using same
Embodiments relate to PDCs, methods of fabricating PDCs, and applications for such PDCs. In an embodiment, a PDC includes a substrate and a pre-sintered PCD table including an interfacial surface...
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7841428 |
Polycrystalline diamond apparatuses and methods of manufacture
Methods of manufacturing polycrystalline diamond are disclosed. More particularly, a mixture including diamond and fullerenes may be provided. Further, the mixture may be exposed to a high...
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7836981 |
Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
Cutting elements are provided having substrates including end surfaces. TSP material layers extend over only a portion of the end surfaces or extend into the substrates below the end surfaces. Bits...
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