Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 10 - Drill bits
Patents for E21B 10 - Drill bits (19,464)
09/2010
09/30/2010US20100243337 Methods for bonding preformed cutting tables to cutting element substrates and cutting elements formed by such processes
09/30/2010US20100243336 Backfilled polycrystalline diamond cutter with high thermal conductivity
09/30/2010US20100243335 Polycrystalline diamond cutter with high thermal conductivity
09/30/2010US20100243334 Auto adaptable cutting structure
09/30/2010US20100243333 Drill Bit Assembly for Fluid-Operated Percussion Drill Tools
09/30/2010US20100243332 Tubular soil auger and manufacturing method
09/30/2010US20100242375 Double Sintered Thermally Stable Polycrystalline Diamond Cutting Elements
09/29/2010EP2231994A2 Oriented pyramid inserts
09/29/2010EP2231993A2 Erosion resistant fluid passageways and flow tubes for earth-boring tools, methods of forming the same and earth-boring tools including the same
09/29/2010EP2231992A1 Method and apparatus to improve design, manufacture, performance and/or use of well tools
09/29/2010EP2231991A1 Earth-boring tools attachable to a casing string and methods for their manufacture
09/29/2010CN201593380U Polycrystalline diamond compact
09/29/2010CN201593379U Sidetracking hole expanding tool with composite wear-resistant layer
09/29/2010CN201593189U Straight shank type drill head in mixing agitator of stabilized soil mixer
09/29/2010CN101845938A Three-wing bit
09/29/2010CN101100930B Surface strengthening steel tooth wheel and manufacturing method thereof
09/28/2010US7802640 Rotary drill bit with nozzles designed to enhance hydraulic performance and drilling fluid efficiency
09/28/2010US7802637 Steerable bit system assembly and methods
09/28/2010US7802495 Methods of forming earth-boring rotary drill bits
09/28/2010CA2572240C Drilling systems and methods utilizing independently deployable multiple tubular strings
09/23/2010WO2010108178A1 Hardfacing compositions, methods of applying the hardfacing compositions, and tools using such hardfacing compositions
09/23/2010WO2010107447A1 Seal assembly for a rotary earth bit
09/23/2010WO2010088231A3 Expandable stabilizer with roller reamer elements
09/23/2010WO2010078230A3 Drill bits with cutters to cut high side of wellbores
09/23/2010WO2010078180A3 Drill bits with a fluid cushion for reduced friction and methods of making and using same
09/23/2010WO2010078033A3 All-conditions tunnel boring machine
09/23/2010WO2010056476A4 Carburized monotungsten and ditungsten carbide eutectic particles, materials and earth-boring tools including such particles, and methods of forming such particles, materials, and tools
09/23/2010WO2010042797A4 Drill bit with adjustable axial pad for controlling torsional fluctuations
09/23/2010US20100236837 Cutting tool insert and drill bit so equipped
09/23/2010US20100236836 Thermally stable polycrystalline diamond material with gradient structure
09/23/2010US20100236835 Percussion Drilling Assembly and Locking System Therefor
09/23/2010US20100236834 Hardfacing compositions, methods of applying the hardfacing compositions, and tools using such hardfacing compositions
09/23/2010US20100236832 Percussive drill bit provided with an improved chuck assembly
09/23/2010US20100236831 Excavation Tool
09/23/2010CA2756010A1 Downhole drilling assembly
09/23/2010CA2754981A1 Seal assembly for a rotary earth bit
09/22/2010EP2230375A1 Resonance enhanced drilling: method and apparatus
09/22/2010CN201588555U Compound drill bit
09/22/2010CN201588554U Addendum deviated button bit
09/22/2010CN201588553U Multifunctional compound drill bit
09/22/2010CN201588552U High wind pressure downhole drill bit
09/22/2010CN201588551U Low wind pressure down-the-hole drill bit
09/22/2010CN201588550U Stagewise spiral cutter edge type PDC drill bit
09/22/2010CN201588549U High wind pressure drill bit
09/22/2010CN201588548U Novel hole reaming tool
09/22/2010CN201588547U Rotating reamer
09/22/2010CN201588546U Polycrystalline diamond composite sheet for rock breaking tool for well drilling
09/21/2010US7798258 Drill bit with cutter element having crossing chisel crests
09/21/2010US7798257 Shaped cutter surface
09/21/2010US7798256 Fixed cutter drill bit for abrasive applications
09/21/2010US7798255 Drill bits having optimized cutting element counts for reduced tracking and/or increased drilling performance
09/21/2010US7798254 Earth bit with hub and thrust units
09/21/2010US7798251 Circulation system for retrieval of bottom hole assembly during casing while drilling operations
09/21/2010US7798248 Roller bearing seal companion ring having textured surface for holding lubricant and small particles
09/21/2010CA2592801C Cutting element having enhanced cutting geometry
09/20/2010CA2659202A1 Seismic drilling bit
09/16/2010WO2010104915A1 Bearing assembly for a downhole motor
09/16/2010WO2010104793A2 Rotational drill bits and drilling apparatuses including the same
09/16/2010WO2010104777A2 Earth-boring tools with thermally conductive regions and related methods
09/16/2010WO2010077838A3 Drillable bit nozzle retainer with interchangeable nozzle capability
09/16/2010US20100230177 Earth-boring tools with thermally conductive regions and related methods
09/16/2010US20100230176 Earth-boring tools with stiff insert support regions and related methods
09/16/2010US20100230175 Earth Boring Bit
09/16/2010US20100230174 Impregnated Bit with Improved Grit Protrusion
09/16/2010US20100230173 Carbide Composites
09/16/2010US20100230172 Seal assembly for a rotary earth bit
09/16/2010US20100230170 Pressure Compensator for Drill Bit
09/16/2010US20100230167 Tension/collar/reamer assemblies and methods
09/16/2010US20100230165 Orientation head
09/16/2010CA2755220A1 Bearing assembly for a downhole motor
09/16/2010CA2753218A1 Rotational drill bits and drilling apparatuses including the same
09/15/2010CN201581834U Novel floated diamond drill bit fastening and unfastening device
09/15/2010CN201581814U Self-advancing drill bit
09/15/2010CN201581813U Soft soil foundation multifunctional spiral anchor rod bit
09/15/2010CN201581812U Button bit
09/15/2010CN201581811U Roller bit oil filling and pressure maintaining device
09/15/2010CN201581810U Sealed roller cone drill bit with pressure balancing device
09/15/2010CN201581805U Drilling tool for sleeving anchor rope
09/15/2010CN201581803U Single eccentric following pipe drilling tool
09/15/2010CN101832107A Air percussion bit with special hydraulic structure and nano composite material teeth
09/15/2010CN101832106A Mining tricone bit based on roller composite bearing
09/15/2010CN101614524B Automatic refined globular tooth diameter and height detection device
09/15/2010CN101131069B Hole-digging and temperature-reducing drilling tool for outburst coal seam and drilling method thereof
09/14/2010US7796134 Multi-plane horizontal perspective display
09/14/2010US7794821 Composite material for drilling applications
09/14/2010US7793715 Rotary roller reamer
09/10/2010WO2010101881A2 Chip deflector on a blade of a downhole reamer and methods therefor
09/10/2010WO2010100630A1 Polycrystalline diamond element
09/10/2010WO2010100629A2 Polycrystalline diamond
09/10/2010WO2010080476A3 Method of designing a bottom hole assembly and a bottom hole assembly
09/10/2010WO2010048120A4 Method and apparatus for automated application of hardfacing material to drill bits
09/10/2010WO2010042719A3 Methods and apparatus for mechanical and thermal drilling
09/10/2010CA2754413A1 Polycrystalline diamond
09/10/2010CA2754150A1 Polycrystalline diamond element
09/09/2010US20100224419 Drill bit with integral cuttings splitter and method of making
09/09/2010US20100224418 Methods of forming erosion resistant composites, methods of using the same, and earth-boring tools utilizing the same in internal passageways
09/09/2010US20100224417 Hybrid drill bit with high bearing pin angles
09/09/2010US20100224414 Chip deflector on a blade of a downhole reamer and methods therefore
09/08/2010EP1784582B1 Seal for a bearing assembly
09/08/2010CN201574689U Large-caliber stepped type assembled and combined bit
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