135206 ⎘
Drill bits Roller bits
Sub-classes:TWO-STAGE DRILL BIT
#2ROTARY CONE BIT COMPRISING AN IDENTIFICATION TAG
#3DEVICES, SYSTEMS, AND METHODS FOR A BIT INCLUDING A MATRIX PORTION AND A STEEL PORTION
#4Continuous Sampling Drill Bit
#5Continuous sampling drill bit
#6Bottom hole assemblies with expandable cladding sheaths for drilling ahead through a lost circulation zone of a wellbore
#7Systems, apparatuses, and methods for automated control of blasthole drill based on performance monitoring
#8Continuous sampling drill bit
#9Drill bits for oil and gas applications
#10Compliant rolling element retainer
#11Three dimensional printed hardfacing on a downhole tool
#12Self-hammering cutting tool
#13Method of forming a journal for a roller cone drill bit
#14Rotatable cutters and elements for use on earth-boring tools in subterranean boreholes, earth-boring tools including same, and related methods
#15Well drilling bit and well drilling method using the same
#16Hybrid drill bit and design method
#17Roller cone resistivity sensor
#18Convertible framework for post hole digger
#19MODULAR COILED TUBING BOTTOM HOLE ASSEMBLY
#20Thin-walled earth boring tools and methods of making the same
#21Drilling machine equipped with an anchoring device allowing the horizontal movement of the drilling module in the anchored position
#22HYBRID ROTARY CONE DRILL BIT
#23Cutting elements with wear resistant diamond surface
#24Super hard constructions and methods of making same
#25Earth-boring tools including polymer matrix composite hardfacing material and related methods
#26Drill bit body construction
#27Earth-boring tools with reduced vibrational response and related methods
#28Cutting elements, earth-boring tools including the cutting elements, and methods of forming the earth-boring tools
#29Indexing drill bit
#30Drilling operation apparatus, methods, and systems
#31Durable rock bit for blast hole drilling
#32Roller cone resistivity sensor
#33Roller cone drill bit with embedded gamma ray detector
#34Hybrid mechanical-laser drilling equipment
#35PDC sensing element fabrication process and tool
#36Semi-sealed rotary drill tool
#37Drill bit
#38Cutting tools with rotating elements
#39Tungsten carbide insert bit with milled steel teeth
#40Drill bit for a drilling apparatus
#41Drill bit with electrical power generator
#42Rotatively mounting cutters on a drill bit
#43Surface coating for metal matrix composites
#44Downhole cutting tool having sensors or releasable particles to monitor wear or damage to the tool
#45TWO-PHASE MANUFACTURE OF METAL MATRIX COMPOSITES
#46HYBRID DRILL BIT
#47Earth-boring tools and methods of forming tools including hard particles in a binder
#48Continuous live tracking system for placement of cutting elements
#49METHOD OF FORMING A BORE
#50Continuous fiber-reinforced tools for downhole use
#51Predicting drillability based on electromagnetic emissions during drilling
#52Controlled blade flex for fixed cutter drill bits
#53Rolling element assemblies
#54Nanofiber strain gauge sensors in downhole tools
#55Earth-boring drill bits with nanotube carpets
#56Fiber-reinforced tools for downhole use
#57Wellbore mill having shear cutters and gouging cutters
#58Drill bit arm pocket
#59Drill bits and earth-boring tools including shaped cutting elements and associated methods
#60Earth-boring tools and components thereof including material having hard phase in a metallic binder, and metallic binder compositions for use in forming such tools and components
#61Rolling element assemblies
#62Method for drilling out a plug using a hybrid rotary cone drill bit
#63LOW COLLISION DAMAGE BIT
#64Tri cone drill bit
#65COMPOSITE DIAPHRAGM FOR ROLLER CONE PRESSURE COMPENSATION SYSTEM
#66System and method for measuring temperature using an opto-analytical device
#67Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element
#68Hybrid drill bit having increased service life
#69Subsurface drilling tool
#70DRILL BIT HAVING SHEAR AND PICK-TYPE CUTTERS
#71DOWNHOLE CUTTING TOOLS HAVING ROLLING CUTTERS WITH NON-PLANAR CUTTING SURFACES
#72Wrap-around stop collar and method of forming
#73Earth-boring tools and methods of forming earth-boring tools
#74Spacing of rolling cutters on a fixed cutter bit
#75Rolling cutter with side retention
#76ROTATING CUTTING ELEMENTS FOR PDC BITS
#77Wear resistant plates on a leading transitional surface of the leg for a rotary cone drill bit
#78Earth-boring tools and components thereof including material having hard phase in a metallic binder, and metallic binder compositions for use in forming such tools and components
#79PDC sensing element fabrication process and tool
#80Roller bit for rock breaking by rotary cutting
#81Hybrid drill bit and design method
#82ROLLER CONE DRILL BIT
#83Tricone rock bit for horizontal wells and hard formation wells
#84Rock bit and cutter teeth geometries
#85Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element
#86Forming objects by infiltrating a printed matrix
#87Hard facing configuration for a drilling tool
#88Inner gauge ring drill bit
#89Drill bits and earth-boring tools including shaped cutting elements
#90Methods for manipulating cutting elements for earth-boring drill bits and tools
#91Rolling cutter with improved rolling efficiency
#92Rolling cutter using pin, ball or extrusion on the bit body as attachment methods
#93Composite drill bit
#94Scraping-wheel drill bit
#95Ball and socket roller reamer and keyseat wiper
#96DRILL BITS HAVING ROTATING CUTTING STRUCTURES THEREON
#97Earth-Boring Bit Parts Including Hybrid Cemented Carbides and Methods of Making the Same
#98Methods of designing earth-boring tools using a plurality of wear state values and related methods of forming earth-boring tools
#99Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element
#100Rock bit and cutter teeth geometries
#101Drill bit with electrical power generation devices
#102Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element
#103Method of forming a bore
#104Drill Bits With Rolling Cone Reamer Sections
#105Apparatus and methods for corrosion protection of downhole tools
#106CASING SHOES INCLUDING CUTTING ELEMENTS, CUTTING ELEMENTS FOR EARTH-BORING TOOL, AND RELATED METHODS
#107Earth-boring tools and methods of forming earth-boring tools
#108PDC sensing element fabrication process and tool
#109Apparatus and methods for detecting performance data in an earth-boring drilling tool
#110At-bit evaluation of formation parameters and drilling parameters
#111DRILL BIT AND DESIGN METHOD FOR OPTIMIZING DISTRIBUTION OF INDIVIDUAL CUTTER FORCES, TORQUE, WORK, OR POWER
#112Casing and liner drilling shoes having spiral blade configurations, and related methods
#113Casing and liner drilling shoes with portions configured to fail responsive to pressure, and related methods
#114Casing shoes having drillable and non-drillable cutting elements in different regions and related methods
#115Casing and liner drilling shoes having selected profile geometries, and related methods
#116Casing and liner drilling shoes having integrated operational components, and related methods
#117High-shear roller cone and PDC hybrid bit
#118Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element
#119High shear roller cone drill bits
#120Manufacturing methods for high shear roller cone bits
#121Adaptive control concept for hybrid PDC/roller cone bits
#122Methods, systems, and devices for manipulating cutting elements for earth-boring drill bits and tools
#123TWO-CONE DRILL BIT
#124Earth-boring bit parts including hybrid cemented carbides and methods of making the same
#125Drill bit and design method for optimizing distribution of individual cutter forces, torque, work, or power
#126Discrete element modeling of rock destruction under high pressure conditions
#127Hybrid drill bit and design method
#128Method and rock drilling rig for hole drilling
#129Corrosion protection for head section of earth boring bit
#130Casing and liner drilling bits and reamers
#131Hardfacing around ball loading hole for earth-boring bit
#132Multiple inserts of different geometry in a single row of a bit
#133Single cone rock bit having inserts adapted to maintain hole gage during drilling
#134Two-cone drill bit with enhanced stability
#135Method of designing a drill bit, and bits made using said method
#136Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element
#137Multiple inserts of different geometry in a single row of a bit
#138Bit leg outer surface hardfacing on earth-boring bit
#139ROLLING CONE DRILL BIT HAVING NON-UNIFORM LEGS
#140Roller cone drill bits with enhanced cutting elements and cutting structures
#141Single cone rock bit having inserts adapted to maintain hole gage during drilling
#142Roller cone bits with wear and fracture resistant surface
#143System, method, and apparatus for reducing residual stress in as-welded roller cone bit ball plug welds
#144Shirttails for reducing damaging effects of cuttings
#145Fracture and wear resistant compounds and rock bits
#146Force-balanced roller-cone bits, systems, drilling methods, and design methods
#147Roller cone bits, methods, and systems with anti-tracking variation in tooth orientation
#148Roller cone drill bits with optimized cutting zones, load zones, stress zones and wear zones for increased drilling life and methods
#149Two-cone drill bit with enhanced stability
#150Two-cone drill bit
#151Shirttails for reducing damaging effects of cuttings
#152Multiple inserts of different geometry in a single row of a bit
#153Drill bit having increased resistance to fatigue cracking and method of producing same
#154Gage surface scraper
#155Casing and liner drilling bits
#156Roller cone drill bits with enhanced cutting elements and cutting structures
#157Wear compensated roller cone drill bits
#158Increased projection for compacts of a rolling cone drill bit
#159Roller cone bits with wear and fracture resistant surface
#160Method of designing a drill bit, and bits made using said method
#161Axial stability in rock bits
#162Continuous sampling drill bit
#163Convertible framework for post hole digger