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)
11/2013
11/06/2013CN102251746B Drill bit and sampling device
11/06/2013CN102132007B Cutting tool with water injection to cutting bit shank
11/05/2013US8573333 Methods for bonding preformed cutting tables to cutting element substrates and cutting elements formed by such processes
11/05/2013US8573332 Methods of forming polycrystalline diamond cutting elements, cutting elements so formed and drill bits so equipped
11/05/2013US8573331 Roof mining drill bit
11/05/2013US8573330 Highly wear resistant diamond insert with improved transition structure
10/2013
10/31/2013WO2013007528A3 Tool holder, and chisel support and drilling bit for a drill head
10/30/2013EP2655784A2 Earth removal member with features for facilitating drill-through
10/30/2013EP2655783A2 Projection interface techniques
10/30/2013CN203257332U Combined reamer bit
10/30/2013CN203257331U Coal mine drilling construction drill bit
10/30/2013CN203257328U Drilling machine for exploiting shale gas
10/30/2013CN203256745U Tubular pile hole cleaning device
10/30/2013CN203256735U Multi-shaft mixing pile device capable of reducing soil-squeezing effect
10/30/2013CN103379974A Polycrystalline diamond constructions having optimized material composition
10/30/2013CN103375135A Integrated concentric drill pipe
10/30/2013CN102373885B Power reamer while drilling for oil and gas well drilling
10/30/2013CN102061884B Pile-driving machinery and drilling bucket thereof
10/29/2013US8567534 Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
10/29/2013US8567533 Rotational drill bits and drilling apparatuses including the same
10/29/2013US8567532 Cutting element attached to downhole fixed bladed bit at a positive rake angle
10/29/2013US8567531 Cutting elements, methods for manufacturing such cutting elements, and tools incorporating such cutting elements
10/29/2013US8567527 System and method for drilling a borehole
10/29/2013CA2734977C Drilling out casing bits with other casing bits
10/27/2013CA2813212A1 Bit selection using bit fleet management
10/24/2013WO2013156667A1 Method and apparatus for down-the-hole drilling
10/24/2013US20130277121 Downhole tools and parts and methods of formation
10/24/2013US20130277120 Cutting structures for fixed cutter drill bit and other downhole cutting tools
10/24/2013US20130277116 Mud motor with integrated percussion tool and drill bit
10/23/2013EP2652237A2 Pdc bits with cutters laid out in both spiral directions of bit rotation
10/23/2013CN203248088U Horizontal directional drilling back-expansion device
10/23/2013CN203248087U 长管棚钻头结构 Long drill pipe roof structure
10/23/2013CN203248086U Cross cutting drill
10/23/2013CN203248085U Combined drill
10/23/2013CN203248084U Drill bit compositing cone and fixed cutting structure
10/23/2013CN203248083U Tooth-embedded roller bit
10/23/2013CN203248082U Wide-tooth cone compound bit
10/23/2013CN203248081U Wide insert cone bit
10/23/2013CN203248080U Combined drill
10/23/2013CN203248079U Embedded type wide-tooth roller bit
10/23/2013CN203248078U Disc insert cone bit
10/23/2013CN203248077U Hard rock coring bit assembly
10/23/2013CN103362461A Long spiral drilling machine and drill bit thereof
10/23/2013CN103362446A Preparation technology for novel rock coring drill bit for geological exploration
10/23/2013CN103362445A Technology for preparing diamond sandwich type hard alloy mine rock drilling blade
10/23/2013CN103362444A Drill for cutting-grinding wing type oil and gas drilling
10/23/2013CN103362443A Drilling bucket and rotary drilling rig
10/23/2013CN102199993B Mining tricone bit with lifting power
10/23/2013CN101918673B Vibration hammer
10/23/2013CN101382044B Barrel type alloy drill
10/22/2013US8561731 Hardmetal for use in oil and gas drilling applications
10/22/2013US8561730 Foot valve assembly for a down hole drill
10/22/2013US8561729 Casing bit and casing reamer designs
10/22/2013US8561728 Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element
10/22/2013US8561727 Superabrasive cutting elements and systems and methods for manufacturing the same
10/22/2013CA2603422C Method for manufacturing a cutting pick
10/18/2013CA2775524A1 Wellbore completion system with reaming tool
10/17/2013WO2013155287A1 Apparatuses and methods for at-bit resistivity measurements for an earth-boring drilling tool
10/17/2013WO2013155261A1 Drill bits having depth of cut control features and methods of making and using the same
10/17/2013WO2013154952A1 High-pressure high-temperature cell
10/17/2013US20130270010 Drill bits having depth of cut control features and methods of making and using the same
10/17/2013US20130270007 Apparatuses and methods for obtaining at-bit measurements for an earth-boring drilling tool
10/16/2013EP2649213A1 Method of partially infiltrating an at least partially leached polycrystalline diamond table and resultant polycrystalline diamond compacts
10/16/2013CN203239235U Down-the-hole drill bit for mine tunnel excavation
10/16/2013CN203239234U Wind-pressure or water-pressure reamer
10/16/2013CN203239233U Split pulse nozzle
10/16/2013CN103352660A Half-funnel-type nozzle double-layer water channel diamond-impregnated bit
10/16/2013CN103352659A Backpitch shattering and dust collecting drill bit
10/16/2013CN103352658A Tricone bit
10/16/2013CN103352657A 矩形孔钻机 Rectangular hole drilling rig
10/15/2013US8555983 Apparatus and method for activating and deactivating a downhole tool
10/10/2013WO2013152099A1 Expandable reamers and methods of using expandable reamers
10/10/2013WO2013151956A1 Cutting structures, tools for use in subterranean boreholes including cutting structures and related methods
10/10/2013WO2013151954A1 Cutting head tool for tunnel boring machine
10/10/2013WO2013150078A2 Symmetrical bit for directional drilling tool
10/10/2013WO2013149358A1 Spring accumulator bearing twin sealing rings for roller cone bit
10/10/2013US20130264125 Methods for fabricating polycrystalline diamond compacts using at least one preformed transition layer and resultant polycrystalline diamond compacts
10/10/2013US20130264124 Thermally stable materials, cutter elements with such thermally stable materials, and methods of forming the same
10/10/2013US20130264122 Expandable reamer methods
10/10/2013US20130264119 Hammer Drill
10/10/2013US20130264118 Methods and Apparatus for Mechanical and Thermal Drilling
10/10/2013US20130263522 Superhard construction
10/10/2013US20130263519 Cutter assembly with at least one island and a method of manufacturing a cutter assembly
10/09/2013EP2647729A2 High temperature high heating rate treatment of pdc cutters
10/09/2013EP2646649A2 Cutter with diamond sensors for acquiring information relating to an earth-boring drilling tool
10/09/2013EP2646642A2 Hardfacing configuration for a drilling tool
10/09/2013EP2646641A2 Mold assemblies including a mold insertable in a container
10/09/2013CN203230343U Screw thread spray nozzle for diamond drill bit
10/09/2013CN203230342U Diamond thin-wall crown drill
10/09/2013CN103348086A Cutter with diamond sensors for acquiring information relating to earth-boring drilling tool
10/09/2013CN103343667A Steel PDC drilling bit with erosion-proof tooth cavities
10/09/2013CN103343666A Novel oil storage compensation structure
10/09/2013CN101784747B Compliantly coupled cutting/gauge pad system
10/08/2013US8550191 Digging tool, digging bit, and device
10/08/2013US8550190 Inner bit disposed within an outer bit
10/08/2013US8550189 Drive pin support
10/08/2013US8550188 Downhole reamer asymmetric cutting structures
10/08/2013US8550182 Electromagnetic energy assisted drilling system and method
10/08/2013CA2707275C Drilling cuttings mobilizer
10/08/2013CA2539525C Matrix drill bits and method of manufacture
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