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)
11/2010
11/24/2010CN201650122U Anchor rod drill with composite sheet
11/24/2010CN201650121U Four-point bit
11/24/2010CN201650120U Bundling type chambering drilling tool
11/24/2010CN201650119U Soil squeezing amount-adjustable bidirectional spiral squeezing and expanding bit
11/24/2010CN201650118U Full-sliding cone palm
11/24/2010CN201650117U Steady drill bit
11/24/2010CN201650102U Drilling mechanism of compound rotary drilling rig
11/24/2010CN1871408B Nozzle unit and method for excavating a hole in an object
11/24/2010CN101892811A Ultrastrong diamond compact bit
11/24/2010CN101892810A Combined drill breaking rocks by cutting method
11/24/2010CN101892809A Bi-directional hydraulic structure for small-aperture reamer
11/24/2010CN101892808A Rolling thrust device for cone bit bearing
11/24/2010CN101892807A Cone bit for high-speed and high-temperature drilling
11/23/2010US7837277 Rotary cutting pick
11/23/2010US7836981 Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
11/23/2010US7836980 Earth-boring tools having pockets for receiving cutting elements and methods for forming earth-boring tools including such pockets
11/23/2010US7836979 Drill bits and tools for subterranean drilling
11/23/2010US7836978 Cutting elements for casing component drill out and subterranean drilling, earth boring drag bits and tools including same and methods of use
11/23/2010US7836975 Morphable bit
11/20/2010CA2704718A1 Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk
11/18/2010WO2010132235A2 Cutting element for use in a drill bit for drilling subterranean formations
11/18/2010WO2010132234A2 Methods of use of particulate materials in conjunction with braze alloys and resulting structures
11/18/2010WO2010132232A2 Hybrid drill bit
11/18/2010WO2010098557A3 Hydraulic breaker with automatic grease supply
11/18/2010WO2010088339A3 Hole enlargement drilling device and methods for using same
11/18/2010WO2007093771A8 Downhole assembly and cutter assembly
11/18/2010US20100288564 Cutting element for use in a drill bit for drilling subterranean formations
11/18/2010US20100288563 Methods of use of particulate materials in conjunction with braze alloys and resulting structures
11/18/2010US20100288562 nozzle with channels that impart an angular momentum to the exiting fluid and methods for making and using same
11/18/2010US20100288561 Hybrid drill bit
11/18/2010US20100288557 Expandable reamer for subterranean boreholes and methods of use
11/17/2010CN201635662U Combined drill bit used for cast-in place pile
11/17/2010CN201635661U Three-blade drill
11/17/2010CN201635660U Guiding device for drilling pile drill
11/17/2010CN101886524A Impregnated PDC bit
11/17/2010CN101886523A High-strength and wear-resistant roller bit
11/17/2010CN101886522A Wheel-type drill for breaking rock in cutting mode
11/17/2010CN101886521A Pneumatic reverse circulating drilling tool for fixing holes
11/17/2010CN101357401B Diamond thin wall drill tool-tip sintering forming die
11/16/2010US7832506 Cutting elements with increased toughness and thermal fatigue resistance for drilling applications
11/16/2010US7832505 Rock bit with a thermal insulating seal ring positioned in the seal gland
11/11/2010WO2010129813A2 Methods of making and attaching tsp material for forming cutting elements, cutting elements having such tsp material and bits incorporating such cutting elements
11/11/2010WO2010129811A2 Cutting elements with re-processed thermally stable polycrystalline diamond cutting layers, bits incorporating the same, and methods of making the same
11/11/2010WO2010129507A2 Roller cones, methods of manufacturing such roller cones, and drill bits incorporating such roller cones
11/11/2010WO2010129468A2 Milling system and method of milling
11/11/2010WO2010129253A2 Adaptive control concept for hybrid pdc/roller cone bits
11/11/2010WO2010128936A1 Air circulation ports in rotary rock bit journal bearing
11/11/2010WO2010127450A1 Slide reamer and stabilizer tool
11/11/2010WO2010127382A1 Drilling equipment and attachment means for the same
11/11/2010US20100284636 Air circulation ports in rotary rock bit journal bearing
11/11/2010US20100282519 Cutting elements with re-processed thermally stable polycrystalline diamond cutting layers, bits incorporating the same, and methods of making the same
11/11/2010US20100282511 Wired Smart Reamer
11/11/2010US20100282510 Methods and apparatuses for measuring drill bit conditions
11/11/2010CA2761167A1 Slide reamer and stabilizer tool
11/11/2010CA2760944A1 Methods of making and attaching tsp material for forming cutting elements, cutting elements having such tsp material and bits incorporating such cutting elements
11/11/2010CA2760830A1 Drilling equipment and attachment means for the same
11/11/2010CA2760613A1 Milling system and method of milling
11/11/2010CA2760286A1 Adaptive control concept for hybrid pdc/roller cone bits
11/11/2010CA2760010A1 Air circulation ports in rotary rock bit journal bearing
11/10/2010EP2247816A1 A method and system for installing geothermal heat exchangers, energy piles, concrete piles, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
11/10/2010CN201627536U Self-detaching type drill bit of rotary drilling rig
11/10/2010CN201627535U Secondary reaming drainage bit
11/10/2010CN101881160A Fixed point sampler
11/10/2010CN101881136A Compound seal roller bit
11/10/2010CN101050511B Vacuum heat treatment method for brazing sheet of hard alloy in low cobalt
11/09/2010US7831419 PDC drill bit with cutter design optimized with dynamic centerline analysis having an angular separation in imbalance forces of 180 degrees for maximum time
11/09/2010US7829013 Components of earth-boring tools including sintered composite materials and methods of forming such components
11/09/2010US7828090 Drill bits with enclosed fluid slots and internal flutes
11/09/2010US7828089 Erosion resistant fluid passageways and flow tubes for earth-boring tools, methods of forming the same and earth-boring tools including the same
11/09/2010US7828088 includes a substrate material attached to the ultra-hard material body to facilitate attachment of the resulting compact construction to an application device by conventional method such as welding and brazing; ultrahard material is free of group 8 metals; cutting and drilling applications
11/09/2010US7828079 Sonic wireline dry slough barrel
11/09/2010CA2615667C Expandable bit with a secondary release device
11/09/2010CA2473073C Vessel for well intervention
11/04/2010WO2010127233A2 Casing bits, drilling assemblies, and methods for use in forming wellbores with expandable casing
11/04/2010WO2010126938A2 Secondary cutting structure
11/04/2010WO2010126936A2 Cutter pocket design
11/04/2010WO2010126817A2 Bearing blocks for drill bits, drill bit assemblies including bearing blocks and related methods
11/04/2010US20100276210 Cutter pocket design
11/04/2010US20100276209 Roller Cones, Methods of Manufacturing Such Roller Cones, and Drill Bits Incorporating Such Roller Cones
11/04/2010US20100276208 High thermal conductivity hardfacing for drilling applications
11/04/2010US20100276207 Rolling cone drill bit having sharp cutting elements in a zone of interest
11/04/2010US20100276206 Rotary Drill Bit
11/04/2010US20100276205 Methods of forming earth-boring rotary drill bits
11/04/2010US20100276201 Secondary cutting structure
11/04/2010US20100276200 Bearing blocks for drill bits, drill bit assemblies including bearing blocks and related methods
11/04/2010US20100276199 Expandable reamer apparatus
11/04/2010US20100276145 Milling system and method of milling
11/04/2010US20100275596 System for exploiting the thermal energy at the bottom of the ocean
11/04/2010CA2760580A1 Cutter pocket design
11/04/2010CA2759444A1 Secondary cutting structure
11/03/2010EP2156002B1 Hybrid drill bit and method of drilling
11/03/2010CN201620762U Composite-type back reaming drill bit
11/03/2010CN201620761U Reamer bit for major-diameter drilling in unconsolidated strata
11/03/2010CN1995685B Pile forming mechanism with high-pressure-jet gyro bit and pile forming method
11/03/2010CN101878346A Percussive drill bit for rock drilling and method for the manufacture of such drill bit
11/03/2010CN101876236A Locally expanded multi-wing expanding bit
11/03/2010CN101403067B Diamond drill bit carcass material suitable for weak-abrasiveness hard formation
11/02/2010US7823665 Milling of cemented tubulars
11/02/2010US7823664 Corrosion protection for head section of earth boring bit
11/02/2010US7823663 Expandable reamer
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