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)
04/2014
04/23/2014CN203559778U Alloy drill bit used for drilling
04/23/2014CN203559777U Tooth-shaped drill bit used for drilling
04/23/2014CN103748310A Superhard constructions
04/23/2014CN103748309A Impregnated drilling tools including elongated structures
04/23/2014CN103748308A Method and apparatus for reaming well bore surfaces nearer the center of drift
04/23/2014CN103742079A Length adjustable spiral bit structure
04/23/2014CN103742078A Comb-like fan-shaped block diamond-impregnated bit
04/23/2014CN103742077A Composite wear-resisting drill bit
04/23/2014CN103741686A Drill bit and construction method for constructing once-formed high pressure jet grouting earth anchor
04/23/2014CN102227541B Self-stabilized and anti-whirl drill bits and bottom-hole assemblies and systems for using same
04/22/2014US8701799 Drill bit cutter pocket restitution
04/22/2014US8701798 Cutting element assembly including one or more superabrasive cutting elements and drill bit utilizing the same
04/17/2014WO2014059106A1 Drill bit apparatus to control torque on bit
04/17/2014US20140102810 Bearing assemblies and apparatuses including tilting superhard bearing elements, and motor assemblies using the same
04/17/2014US20140102809 Anti-Balling Coating On Drill Bits And Downhole Tools
04/17/2014US20140102798 Stabilizing members for fixed cutter drill bit
04/16/2014CN203547550U Rotatable hydraulic jetting drill bit
04/16/2014CN203547549U Spin type pdc drill bit
04/16/2014CN203547548U Rotary bit
04/16/2014CN203547547U Rotor wing sliding block type drilling tool
04/16/2014CN203547546U Hob type rock reamer
04/16/2014CN203547545U Cone bit floating sealing device for mine and oil
04/16/2014CN203547544U Anti-settling mud drilling bit
04/16/2014CN203547543U Mini-sized coring bit with sharp and round tooth
04/16/2014CN203547542U Multi-groove-shaped coring drill bit
04/16/2014CN203547541U Shock-absorption drilling bucket and rotary drilling rig
04/16/2014CN203547540U Drill bit
04/16/2014CN203547539U Vibrating double-tail tip bit
04/16/2014CN103732847A Compositions, methods of coating wellbore tools with such compositions, and wellbore tools coated with such compositions
04/16/2014CN103726793A Drill bit cutting tooth part for rotary drilling rig
04/16/2014CN103726792A Abrasion-resistant tool
04/16/2014CN103726791A Pipe-following drilling reaming device for gas extraction holes in soft broken coal bed
04/16/2014CN103726790A Special resistance-reducing and jam-releasing coring drill for indoor rock mechanics experiment
04/16/2014CN103726789A Rock drilling bit
04/16/2014CN102606083B Diamond cutter and manufacturing method thereof
04/15/2014US8698038 Method and apparatus for the automated application of hardfacing material to rolling cutters of earth-boring drill bits
04/15/2014US8695733 Functionally graded polycrystalline diamond insert
04/15/2014US8695732 Earth-boring cutter mount and assembly
04/15/2014US8695729 PDC sensing element fabrication process and tool
04/15/2014CA2777356C Down-the-hole drill hammer having a reverse exhaust system and segmented chuck assembly
04/15/2014CA2677785C Minimizing stick-slip while drilling
04/10/2014WO2014055290A1 Machined high angle nozzle sockets for steel body bits
04/10/2014WO2014055288A1 Blade flow pdc bits
04/10/2014WO2014055287A1 Flow through gauge for drill bit
04/10/2014WO2014055089A1 Well tool with dynamic metal-to-metal shape memory material seal
04/10/2014WO2014020021A3 Superhard constructions & methods of making same
04/10/2014WO2013139755A3 Drill bit for percussive drilling
04/10/2014WO2013096378A3 System and method of fracturing while drilling
04/10/2014US20140097028 Pointed diamond working ends on a shear bit
04/10/2014US20140097024 Drill bits having depth of cut control features and methods of making and using the same
04/09/2014EP2715032A1 Core and drill bits with integrated optical analyzer
04/09/2014EP2715031A1 Mud motor assembly
04/09/2014EP2714333A1 Super-hard structure, tool element and method of making same
04/09/2014EP2714305A2 Heavy duty matrix bit
04/09/2014CN203531895U Open and close drilling sampling drill bit
04/09/2014CN203531757U Oil and gas field hard-rock drilling compact bit
04/09/2014CN203531756U Directional drilling steel body PDC drill bit
04/09/2014CN203531755U Heavy type three-lip drill bit achieving efficient and low-consumption rock drilling in hard and high-abrasiveness rock
04/09/2014CN203531754U Concave-face down-the-hole drill bit
04/09/2014CN203531753U Multi-function combined drill
04/09/2014CN203531752U Hole reaming bit
04/09/2014CN203531751U Oil exploration explosive containing drill bit
04/09/2014CN103717825A Downhole tool and method of use
04/09/2014CN103717824A Rock bit having a labyrinth seal/bearing protection structure
04/09/2014CN103711436A Foundation pit excavating device for photovoltaic power station
04/09/2014CN103711435A Crankset diamond bit for well drilling
04/09/2014CN101278101B Underreamer having radially extendable members
04/09/2014CN101268246B Steerable drilling system
04/09/2014CN101010482B Excavating tool and steel pipe forepoling method
04/08/2014US8689913 Polycrystalline diamond compact including a substrate having a raised interfacial surface bonded to a leached polycrystalline diamond table, and applications therefor
04/08/2014US8689912 Polycrystalline diamond constructions having optimized material composition
04/08/2014US8689911 Cutter and cutting tool incorporating the same
04/08/2014US8689910 Impregnation bit with improved cutting structure and blade geometry
04/08/2014US8689909 Inserts, polycrystalline diamond compact cutting elements, earth-boring bits comprising same, and methods of forming same
04/08/2014US8689908 Drill bit having enhanced stabilization features and method of use thereof
04/08/2014US8689907 Patterned texturing of the seal surface for a roller cone rock bit
04/03/2014WO2014052372A2 Downhole mills and improved cutting structures
04/03/2014WO2014052068A1 Single crystal diamond or cbn featuring micro-fracturing during grinding
04/03/2014WO2013130368A3 Inner gauge ring drill bit
04/03/2014WO2013083380A3 Method for assessing the performance of a drill bit configuration, and for comparing the performance of different drill bit configurations for drilling similar rock formations
04/03/2014US20140095134 Pdc drill bit with cutter design optimized with dynamic centerline analysis and having dynamic centerline trajectory
04/03/2014US20140093316 Method For Injecting Surface Water Into The Ground
04/03/2014US20140090901 Machined high angle nozzle sockets for steel body bits
04/03/2014US20140090900 Blade flow pdc bits
04/03/2014US20140090899 Flow through gauge for drill bit
04/03/2014DE112012000985T5 Fluidbohrkopfdüsebauweise Fluidbohrkopfdüsebauweise
04/02/2014EP2712384A1 Innovative cutting element and cutting structure using the same
04/02/2014CN203515421U Semicircular milling bit
04/02/2014CN203515335U Percussion reverse circulation drill bit
04/02/2014CN203515334U Drill bit
04/02/2014CN203515333U Grouting and hole-sweeping drill bit
04/02/2014CN203515332U PDC (polycrystalline diamond compact) drill bit for plastic strata
04/02/2014CN203515331U PDC (polycrystalline diamond compact) drill bit with special gauge protection
04/02/2014CN203515330U Positive expanding drilling tool for directional drilling and crossing of rock stratum
04/02/2014CN203515329U Rock-socketed reamer
04/02/2014CN203515328U Sealing structure of bearing of cone
04/02/2014CN203515327U Double-sealing roller bit with sealing pressure adjusting device
04/02/2014CN203515326U Multi-addendum alloy tooth adopting special-shaped structure
04/02/2014CN203515325U Active regulation type composite drill bit
04/02/2014CN203515324U Drill bit device of abrasion drill for treating uneven geology
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