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)
08/2012
08/15/2012EP1664474B1 Drilling apparatus, method, and system
08/15/2012CN202381109U Self-drilling rock bolt
08/15/2012CN202380982U Circular truncated cone type diamond hard alloy composite sheet
08/15/2012CN202380981U Concave diamond hard alloy composite piece
08/15/2012CN202380980U Polycrystalline diamond composite sheet with striped surface metal
08/15/2012CN202380979U Roller drilling bit of spherical floating bushing bearing
08/15/2012CN202380978U Stratum coring drilling bit and stratum coring drilling tool
08/15/2012CN202380976U Mechanical automatic-switching type high-pressure water jet slotting drill
08/15/2012CN102635354A Five-drill air inlet and outlet type coal mining machine
08/15/2012CN102635315A Joint with hole-repairing drill bit
08/15/2012CN102635313A Gimlet
08/14/2012US8240405 Polycrystalline diamond abrasive elements
08/14/2012US8240404 Roof bolt bit
08/14/2012US8240403 Earth-boring tools with improved retention of cutting elements installed within pockets
08/14/2012US8240402 Earth-boring tools and components thereof including blockage-resistant internal fluid passageways, and methods of forming such tools and components
08/14/2012CA2672836C Superabrasive cutting elements with enhanced durability and increased wear life, and drilling apparatus so equipped
08/14/2012CA2630914C Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies
08/09/2012WO2012106486A2 Downhole tool actuation
08/09/2012WO2012074755A3 Cutter with diamond sensors for acquiring information relating to an earth-boring drilling tool
08/09/2012US20120199402 Infiltrated diamond wear resistant bodies and tools
08/09/2012US20120199401 Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
08/09/2012US20120199398 Wellbore completion system with reaming tool
08/09/2012US20120199395 Cutting elements having a pre-formed fracture plane for use in cutting tools
08/09/2012US20120199366 Actuator and method
08/08/2012EP2484863A2 Novel activating mechanism for controlling the operation of a downhole tool
08/08/2012EP2483512A2 Cutting elements configured to generate shear lips during use in cutting, earth-boring tools including such cutting elements, and methods of forming and using such cutting elements and earth-boring tools
08/08/2012EP2483511A2 Production of reduced catalyst pdc via gradient driven reactivity
08/08/2012EP2483510A2 Remotely controlled apparatus for downhole applications and methods of operation
08/08/2012EP2483509A2 Tools for use in drilling or enlarging well bores having expandable structures and methods of making and using such tools
08/08/2012EP2483508A2 Earth-boring tools having expandable members and related methods
08/08/2012EP2483507A2 Earth-boring tools having expandable cutting structures and methods of using such earth-boring tools
08/08/2012EP2483506A2 Earth boring tools having expandable members
08/08/2012CN202370531U Extra-large planetary master-sub drill bit for tunnel shield machine
08/08/2012CN202370435U Blade PDC bit
08/08/2012CN202370434U Five-petal half cone impact drill bit
08/08/2012CN202370433U Hollow anchor rod drill bit
08/08/2012CN202370432U Rotary drilling tool and rotary drilling machine with the same
08/08/2012CN102628338A Novel roller bit sealing ring
08/08/2012CN101852064B Hydraulic waste drilling machine
08/07/2012US8236074 Superabrasive elements, methods of manufacturing, and drill bits including same
08/07/2012US8235149 Diamond bit steel body cutter pocket protection
08/07/2012US8235147 Apparatus and method for installing ground anchoring systems
08/07/2012CA2623625C Method and rock drilling rig for hole drilling
08/02/2012WO2012103494A2 Non-magnetic drill string member with non-magnetic hardfacing and method of making the same
08/02/2012WO2012103491A2 Non-magnetic hardfacing material
08/02/2012WO2012103342A2 Fabricated mill body with blade pockets for insert placement and alignment
08/02/2012WO2012102772A1 Method and apparatus for reducing lubricant pressure pulsation within a rotary cone rock bit
08/02/2012WO2012102771A1 Method and apparatus for reducing lubricant pressure pulsation within a rotary cone rock bit
08/02/2012WO2012064957A3 Localized features and manufacturing methods for inserts of rock bits
08/02/2012WO2012048025A3 Composite materials including nanoparticles, earth-boring tools and components including such composite materials, polycrystalline materials including nanoparticles, and related methods
08/02/2012US20120193152 Cutting tool inserts
08/02/2012US20120193151 Method and apparatus for reducing lubricant pressure pulsation within a rotary cone rock bit
08/02/2012US20120193150 Method and apparatus for reducing lubricant pressure pulsation within a rotary cone rock bit
08/02/2012US20120193149 Drill bit with enhanced hydraulics and erosion-shield cutting teeth
08/02/2012US20120193147 Fluid Path between the Outer Surface of a Tool and an Expandable Blade
08/02/2012US20120192499 Brazed Diamond Tools and Methods for Making the Same
08/02/2012CA2823260A1 Fabricated mill body with blade pockets for insert placement and alignment
08/01/2012EP2481505A1 Drill bit, in particular for drilling and/or cutting device
08/01/2012EP2480747A2 Cutting element and method of forming thereof
08/01/2012EP2480746A2 Impregnated cutting elements with large abrasive cutting media and methods of making and using the same
08/01/2012EP2198111B1 Cutting structures for earth-boring drill bits
08/01/2012CN202360031U Diamond geological drill bit for engraving and grinding
08/01/2012CN202360030U Drilling tool capable of rotatably digging soil containing crushed cobblestones
08/01/2012CN202360029U Novel concentric tube drill
08/01/2012CN202360027U Drilling operation structure for horizontal oil well
08/01/2012CN102619473A Bionic non-smooth polycrystalline diamond compact
08/01/2012CN102619472A Backward-flowing prevention air hammer drill for foam drilling
08/01/2012CN102619471A Lubrication system of roller bit
08/01/2012CN101737012B Drilling bit for guiding horizontal roatatably-jetting construction and construction method thereof
07/2012
07/31/2012US8230953 Polycrystalline diamond compacts and drill bits using same
07/31/2012US8230952 Sleeve structures for earth-boring tools, tools including sleeve structures and methods of forming such tools
07/31/2012US8230951 Earth-boring tools having expandable members and methods of making and using such earth-boring tools
07/31/2012US8230762 Methods of forming earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials
07/31/2012CA2546316C Drill bit with protection member
07/28/2012CA2859386A1 Drill bit with enhanced hydraulics and erosion-shielded cutting teeth
07/28/2012CA2756956A1 Drill bit with enhanced hydraulics and erosion-shielded cutting teeth
07/26/2012WO2012100055A2 Multi-cycle pipe cutter and related methods
07/26/2012WO2012099716A2 Polycrystalline compacts having differing regions therein, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts
07/26/2012WO2012099668A2 Expanding mill having camming sleeve for extending cutting blade
07/26/2012US20120186885 Polycrystalline compacts having differing regions therein, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts
07/26/2012US20120186884 Polycrystalline compacts having differing regions therein, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts
07/26/2012US20120186883 Drill bit assembly for fluid-operated percussion drill tools
07/26/2012US20120186879 Drill Bit Having Enhanced Stabilization Features and Method of Use Thereof
07/26/2012US20120186878 Downhole tool
07/26/2012US20120186876 Core drill bit
07/26/2012CA2824981A1 Polycrystalline compacts having differing regions therein, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts
07/26/2012CA2824383A1 Downhole tools
07/25/2012EP2478177A2 External, divorced pdc bearing assemblies for hybrid drill bits
07/25/2012CN202348120U Three-wing bit for buried pipe ground source heat pump well drilling
07/25/2012CN202348119U Diamond compact anchor rod drill
07/25/2012CN202348118U Bottom sleeve made of low temperature resistant material for drill for oil drilling
07/25/2012CN202348117U Fixed-cutting-tooth drill bit
07/25/2012CN102606099A Self-lubricating dust-collecting drill bit device for down-the-hole drill
07/25/2012CN102606083A Diamond cutter and manufacturing method thereof
07/25/2012CN102606082A Diamond compact and manufacturing process for same
07/25/2012CN102606081A Efficient, abrasion-resistant and shock-resistant polycrystalline diamond compact
07/25/2012CN102606080A Segmented polycrystalline diamond compact and production method thereof
07/25/2012CN102606079A Downhole tool with balling decreasing characteristic and methods for forming and repairing downhole tool
07/25/2012CN102606078A Threaded drill bit with rotatable ring and method for using same
07/25/2012CN102606077A Composite metal sealing mechanism for tricone bit
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