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US20150075876 |
EARTH-BORING TOOLS COMPRISING EUTECTIC OR NEAR-EUTECTIC COMPOSITIONS
Articles comprising at least a portion of an earth-boring tool include at least one insert and a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase.... |
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US20130333951 |
CUTTING INSERTS, CONES, EARTH BORING TOOLS HAVING GRADING FEATURES, AND RELATED METHODS
Earth-boring tools include one or more cutting elements having at least one grading feature positioned a known distance from an initial working surface of the cutting element. Methods of grading... |
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US20140034397 |
DOWNHOLE REAMER ASYMMETRIC CUTTING STRUCTURES
A cutting structure for use with a reamer in enlarging a borehole in a subterranean formation includes a plurality of cutter blocks, radially extendable from a reamer body away from a central axis... |
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US20150060151 |
CUTTING ELEMENTS WITH WEAR RESISTANT DIAMOND SURFACE
Cutting elements include polycrystalline diamond which may be attached to a substrate. The polycrystalline diamond may have a ratio of cubic to hexagonal cobalt crystalline structures of greater... |
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US20140231150 |
PARTICULATE MIXTURES FOR FORMING POLYCRYSTALLINE COMPACTS AND EARTH-BORING TOOLS INCLUDING POLYCRYSTALLINE COMPACTS HAVING MATERIAL DISPOSED IN INTERSTITIAL SPACES THEREIN
Polycrystalline compacts include smaller and larger hard grains that are interbonded to fox in a polycrystalline hard material. The larger grains may be at least about 150 times larger than the... |
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US20110017518 |
EARTH-BORING TOOLS WITH IMPROVED RETENTION OF CUTTING ELEMENTS INSTALLED WITHIN POCKETS
A rock bit is formed with pockets for enhanced cutting element retention and support of cutting elements during operation of the rock bit. Portions of the pockets are carburized to increase a... |
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US20150144407 |
POLYCRYSTALLINE COMPACTS, EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FABRICATING POLYCRYSTALLINE COMPACTS
A polycrystalline compact includes diamond grains, cubic boron nitride grains, and grains of an additional nitride, carbide, or boride. The additional nitride, carbide, or boride may be aluminum... |
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US20140165476 |
POLYCRYSTALLINE DIAMOND CONSTRUCTION AND METHOD FOR MAKING SAME
A polycrystalline diamond construction comprising a body of polycrystalline diamond material is formed of a mass of diamond grains exhibiting inter-granular bonding and defining a plurality of... |
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US20120138301 |
Controllably Installed Multilateral Completions Assembly
A multilateral completions assembly having selectively isolated lateral legs during hardware installation. The assembly includes a variety of isolation sleeves disposed interior of the main bore... |
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US20130000982 |
Erosion Resistant Hard Composite Materials
A hard composite composition may comprise a binder and a polymodal blend of matrix powder. The polymodal blend of matrix powder may have at least one first local maxima at a particle size of about... |
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US20080011519 |
Cemented tungsten carbide rock bit cone
An earth-boring bit has a steel body and bearing pin for rotatably supporting a cone. The cone has an exterior surface containing rows of cutting elements. The cone and cutting elements are formed... |
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US20100300764 |
POLYCRYSTALLINE DIAMOND
A polycrystalline diamond (PCD) material 10 comprising at least 88 volume percent and at most 99 volume percent diamond grains 12, the mean diamond grain contiguity being greater than 60.5... |
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US20140339882 |
AXIALLY STABLE RETENTION MECHANISM FOR PICKS AND CUTTING ELEMENTS
A cutting element assembly includes a cutting element partially disposed within a support and a retention mechanism disposed between the cutting element and the support, both the axial and radial... |
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US20050109546 |
Flat and bevel chipbreaker insert
A cutting insert for use on a metal cutting tool downhole in an oil or gas well, with at least one land on a leading edge of the insert, and at least one bevel surface angled relative to the axis... |
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US20080047759 |
Hard material insert for a drill and a drill with the hard material insert
A hard material insert (1) for a drill (2, 2′) includes an axially central reinforcement (3) provided in the insert, and two diametrically opposite, radial arms (4) each having a cross-section... |
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US20090283325 |
Polycrystalline Diamond Compact Drill Bit Blade Design and Nozzle Placement
A rotary drag bit for use in subterranean earth boring operations, the drag bit having blades, rows of cutters on the blades, and nozzles disposed within the rows. The nozzles are configured to... |
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US20070079994 |
Diamond-bonded bodies and compacts with improved thermal stability and mechanical strength
Thermally stable diamond-bonded compacts include a diamond-bonded body having a thermally stable region extending a distance below a diamond-bonded body surface. The thermally stable region... |
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US20050133277 |
Superhard mill cutters and related methods
Superhard ball mill cutters and their materials and manufacturing methods. |
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US20100108400 |
HARD METAL PLATE FOR ROCK DRILL AND ROCK DRILL
In a hard metal plate for insertion in to a seat formed at one end of a drill shaft of a rock drill, comprising a substantially rectangular base shape having two opposed long sides extending in... |
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US20060201712 |
Cutter for maintaining edge sharpness
A cutter comprising a base portion, an ultrahard layer disposed on said base portion, and at least one recessed region on an outer surface of the cutter. A start of the recessed region disposed a... |
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US20090218146 |
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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US20120103697 |
INSERTS, POLYCRYSTALLINE DIAMOND COMPACT CUTTING ELEMENTS, EARTH-BORING BITS COMPRISING SAME, AND METHODS OF FOMING SAME
An insert for an earth-boring tool includes a body and a coating disposed over at least a portion of the body. The coating comprises a ceramic comprising boron, aluminum, and magnesium.... |
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US20050247492 |
Cutter having shaped working surface with varying edge chamber
A cutter for a drill bit used for drilling wells in a geological formation includes an ultra hard working surface and a chamfer along an edge of the working surface, wherein the chamfer has a... |
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US20070131459 |
THERMALLY STABLE POLYCRYSTALLINE ULTRA-HARD CONSTRUCTIONS
Thermally stable polycrystalline constructions comprise a body having a polycrystalline ultra-hard phase and a plurality of empty voids. A population of the voids can be filled with a reaction... |
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US20110073369 |
EARTH-BORING TOOLS, METHODS OF MAKING EARTH-BORING TOOLS AND METHODS OF DRILLING WITH EARTH-BORING TOOLS
Earth-boring tools comprise a body having a face at a leading end. A plurality of cutting elements are disposed over the face and configured as a plurality of kerfing pairs comprising two or more... |
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US20080060852 |
Gage configurations for drill bits
A drill bit includes a plurality of cutting elements are positioned on the at least two roller cones, wherein cutting elements contributing to an operative gage row of the drill bit comprise less... |
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US20140246249 |
METHODS FOR FORMING EARTH-BORING TOOLS HAVING CUTTING ELEMENTS MOUNTED IN CUTTING ELEMENT POCKETS AND TOOLS FORMED BY SUCH METHODS
Methods of forming earth-boring tools include using a plasma spray device to gouge at least one recess through a hardfacing material and into a body. At least a portion of the recess may define a... |
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US20120234608 |
CUTTING ELEMENT PLACEMENT ON A FIXED CUTTER DRILL BIT TO REDUCE DIAMOND TABLE FRACTURE
A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface... |
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US20110031029 |
CUTTING ELEMENT PLACEMENT ON A FIXED CUTTER DRILL BIT TO REDUCE DIAMOND TABLE FRACTURE
A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface... |
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US20110005755 |
Downhole Casing Cutting Tool
An oilfield downhole cutting tool is provided. The cutting tool comprises a tool body that comprises a non-cutting stabilizing section. The cutting tool further comprises a plurality of cutters... |
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US20060157282 |
Managed pressure drilling
Embodiments of the present invention include methods and apparatus for dynamically controlling pressure within a wellbore while forming the wellbore. In one aspect, one or more pressure control... |
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US20090308663 |
ROTARY DRILL BITS AND DRILLING TOOLS HAVING PROTECTIVE STRUCTURES ON LONGITUDINALLY TRAILING SURFACES
A rotary drill bit or other drilling tool for drilling or reaming through subterranean formation and comprising a body comprising a distal end and gage areas near a proximal end thereof and... |
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US20100326739 |
EARTH-BORING TOOLS COMPRISING SILICON CARBIDE COMPOSITE MATERIALS, AND METHODS OF FORMING SAME
Earth-boring tools for drilling subterranean formations include a particle-matrix composite material comprising a plurality of silicon carbide particles dispersed throughout a matrix material,... |
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US20050139395 |
Drill bit with a moissanite (silicon carbide) cutting element
A cutting element for a rotary-type drill bit is disclosed comprising moissanite (silicon carbide) crystals impregnated within and/or coated on the surface of the cutting elements. |
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US20140060934 |
CUTTING INSERT FOR A ROCK DRILL BIT
A cutting insert for a rock drill bit having a ridge formed on a cutting face that splits extrudate formed during drilling thereby reducing the mechanical specific energy that may be expended to... |
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US20090321139 |
Rotary Drill Bit Steerable System and Method
A drill bit comprising: a cutting section comprising gage cutters, wherein in the cutting section is a first end of the bit, and wherein the cutting section has a full gage diameter; a heel... |
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US20090188725 |
HARD FORMATION INSERT AND PROCESS FOR MAKING THE SAME
A drilling insert includes a cylindrical body and a top portion of the drilling insert. The top portion is on top of the cylindrical body providing a contact area, wherein the contact area... |
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US20100236834 |
HARDFACING COMPOSITIONS, METHODS OF APPLYING THE HARDFACING COMPOSITIONS, AND TOOLS USING SUCH HARDFACING COMPOSITIONS
A hardfacing composition comprising an iron-based binder alloy; and a carbide phase comprising a sintered carbide and a cast tungsten carbide, wherein the cast carbide is present in a quantity of... |
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US20070151769 |
Microwave sintering
A carbide composite that includes carbide particles having an average particle size of less than about 100 nanometers and a metallic binder disposed around the carbide particles is disclosed. The... |
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US20130092449 |
LOW COEFFICIENT OF THERMAL EXPANSION CERMET COMPOSITIONS
Low coefficient of thermal expansion (CTE) cermet compositions of this invention generally comprise a hard phase material and a ductile phase formed from a binder alloy, wherein the binder alloy... |
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US20110203856 |
COMPOSITE CUTTING/MILLING TOOL HAVING DIFFERING CUTTING ELEMENTS AND METHOD FOR MAKING THE SAME
A cutting/milling tool includes a tool body; a cutting end of the tool body; a first plurality of cutting elements having a substantially identical shape disposed at the cutting end of the tool... |
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US20080210473 |
HYBRID CARBON NANOTUBE REINFORCED COMPOSITE BODIES
A composite body for cutting tools that includes a ductile phase; a plurality of carbide particles dispersed the ductile phase; and a plurality of nanotubes integrated into the composite body is... |
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US20080035387 |
Downhole Drill Bit
In one aspect of the present invention, a drill bit has a body intermediate a shank and a working face. The working face has a plurality of blades converging towards a center of the working face... |
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US20070267227 |
DRILL BIT WITH STAGED DURABILITY, STABILITY AND ROP CHARACTERISTICS
Drill bit with multiple stages of durability and ROP characteristics is disclosed. The drill bit has multiple layers of cutters established by deploying the cutters on blades of different heights... |
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US20070151770 |
Drill bits with bearing elements for reducing exposure of cutters
A bearing element for a rotary, earth boring drag bit effectively reduces an exposure of at least one adjacent cutting element by a readily predictable amount, as well as a depth of cut (DOC) of... |
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US20130087391 |
FIXED BLADED DRILL BIT CUTTER PROFILE
A drill bit has a bit body with a plurality of fixed blades and a plurality of cutters disposed on the plurality of blades. The plurality of cutters includes a plurality of flat shear type cutters... |
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US20140374169 |
RETENTION OF MULTIPLE ROLLING CUTTERS
A cutting tool may include a tool body; at least one blade extending radially from the tool body; a plurality of cutters disposed on the at least one blade; and at least one retention component,... |
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US20100108402 |
DOWNHOLE CUTTING TOOL AND METHOD OF MAKING
A downhole cutting tool includes, a body, a first contoured cutting element in operable communication with the body, and at least one contingency contoured cutting element in operable... |
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US20100038147 |
TOUGH CARBIDE BODIES USING ENCAPSULATED CARBIDES
A drill bit that includes a bit body having a plurality of blades extending radially therefrom, wherein at least a portion of the bit body comprises a first matrix region comprising a plurality of... |
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US20050269139 |
Shaped cutter surface
A cutter for a drill bit used in a geological formation includes a shaped ultra hard working surface. The cutter with the shaped working surface is mounted on a drill bit to provide desired... |