E21B 10 - Drill bits - Patents Sitemap

Patents for E21B 10 - Drill bits (19,464)
11/2011
11/03/2011	US20110266067 Down hole hammer having elevated exhaust
11/03/2011	US20110266060 Expandable earth-boring wellbore reamers and related methods
11/03/2011	US20110266059 Polycrystalline diamond compacts, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts and earth-boring tools
11/03/2011	US20110266058 PDC Sensing Element Fabrication Process and Tool
11/03/2011	US20110266055 Apparatus and Methods for Detecting Performance Data in an Earth-Boring Drilling Tool
11/03/2011	US20110266054 At-Bit Evaluation of Formation Parameters and Drilling Parameters
11/03/2011	CA2795743A1 Drill bit for percussive rock drilling
11/02/2011	EP2383420A1 Drill bit for percussive rock drilling
11/02/2011	EP2383419A2 Device for inserting a standing pipe assembly into the soil
11/02/2011	EP2382368A1 Method and apparatus for down-the-hole drilling
11/02/2011	EP2382367A2 Expandable stabilizer with roller reamer elements
11/02/2011	EP2079898B1 Earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials, and methods for forming such bits
11/02/2011	CN202023511U Drill rod of cutting drill machine
11/02/2011	CN202023507U Anti-wear impregnated diamond segment
11/02/2011	CN202023506U Down-the-hole drill bit
11/02/2011	CN202023505U Push-pull type guiding expanding drill bit
11/02/2011	CN202023499U Piling machine for holing through rotary pump
11/02/2011	CN202023191U Drill bit of bolt bored concrete pile drilling machine
11/02/2011	CN102232138A Anti-whirl drill bits, wellsite systems, and methods of using the same
11/02/2011	CN102230363A Device and method for drilling and forming hole in coal rock in structural belt
11/02/2011	CN101672162B Inclination-resisting PDC drill bit
11/02/2011	CN101315021B Automatic reducing borehole-enlarging drilling tool
11/01/2011	US8047309 Passive and active up-drill features on fixed cutter earth-boring tools and related systems and methods
11/01/2011	US8047308 Rotary drill bit with nozzles designed to enhance hydraulic performance and drilling fluid efficiency
11/01/2011	US8047307 Hybrid drill bit with secondary backup cutters positioned with high side rake angles
11/01/2011	US8047304 Expandable reamer for subterranean boreholes and methods of use
10/2011
10/27/2011	WO2011133850A2 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods
10/27/2011	WO2011094429A3 Shock reduction tool for a downhole electronics package
10/27/2011	WO2011094359A3 Drilling assembly with underreaming bit and method of use
10/27/2011	US20110259650 Tracking Shearing Cutters on a Fixed Bladed Drill Bit with Pointed Cutting Elements
10/27/2011	US20110259649 Drill bit and design method for optimizing distribution of individual cutter forces, torque, work, or power
10/27/2011	US20110259648 Polycrystalline diamond compact and method of making same
10/27/2011	US20110259647 Systems for manufacturing downhole tools and downhole tool parts
10/27/2011	US20110259646 Disc Cutter for an Earth Boring System
10/27/2011	US20110259643 Casing and liner drilling shoes having spiral blade configurations, and related methods
10/27/2011	US20110259642 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods
10/27/2011	US20110259641 Apparatus and Method for Modifying the Sidewalls of a Borehole
10/27/2011	US20110259608 Casing and liner drilling shoes with portions configured to fail responsive to pressure, and related methods
10/27/2011	US20110259606 Casing shoes having drillable and non-drillable cutting elements in different regions and related methods
10/27/2011	US20110259605 Casing and liner drilling shoes having selected profile geometries, and related methods
10/27/2011	US20110259604 Casing and liner drilling shoes having integrated operational components, and related methods
10/27/2011	US20110258936 Methods of forming polycrystalline compacts
10/26/2011	EP2379836A1 Drilling assemblies including one of a counter rotating drill bit and a counter rotating reamer, methods of drilling, and methods of forming drilling assemblies
10/26/2011	EP2379256A2 Methods of forming polycrystalline diamond cutting elements, cutting elements so formed and drill bits so equipped
10/26/2011	EP2379255A2 Methods of forming bodies for earth boring drilling tools comprising molding and sintering techniques, and bodies for earth-boring tools formed using such methods
10/26/2011	EP2129860B1 Method of forming pockets for receiving drill bit cutting elements
10/26/2011	EP2122109B1 Method and apparatus for collecting drill bit performance data
10/26/2011	CN202017456U High-speed impregnated drill bit
10/26/2011	CN202017455U Compound impregnated bit
10/26/2011	CN202017454U Surface set natural diamond bit
10/26/2011	CN202017453U Temperature measuring type diamond bit for drilling tests
10/26/2011	CN202017452U Full gauge bit
10/26/2011	CN202017451U Rock reamer with replaceable wheel body
10/26/2011	CN202017199U Squeezing and expanding device for branch piles
10/26/2011	CN102227541A Self-stabilized and anti-whirl drill bits and bottom-hole assemblies and systems for using same
10/26/2011	CN102226389A Coal mine drilling anti-collapse hole pipe network and anti-collapse hole method
10/26/2011	CN102226376A Interlocking butt joint drill bit
10/25/2011	US8042625 Drilling tool
10/25/2011	US8042613 Drilling head for reboring a stuck valve
10/20/2011	WO2011130148A2 Coring apparatus and methods
10/20/2011	WO2011129958A2 Reverse circulation hammer with modular bit
10/20/2011	WO2011128250A1 Hard face structure and body comprising same
10/20/2011	WO2011088477A3 Drill bit bearing contact pressure reduction
10/20/2011	WO2011046838A4 Polycrystalline compacts including nanoparticulate inclusions, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts
10/20/2011	US20110253460 Blade-type drill bit
10/20/2011	US20110253459 Polycrystalline diamond composite compact element, tools incorporating same and method for making same
10/20/2011	US20110253458 Percussion hammer bit retention system
10/20/2011	US20110253457 Drag bit with utility blades
10/20/2011	US20110253456 Reverse circulation hammer with modular bit
10/20/2011	US20110253454 Mechanically modified filter cake
10/20/2011	DE102010015474A1 Drilling head for use during water well construction, has pivoted main drill bits with cutting edge arranged within internal diameter of guide pipe, where guide pipe surrounds drill pipe, and drill bits are moveably arranged at base body
10/20/2011	CA2796244A1 Hard face structure and body comprising same
10/20/2011	CA2796049A1 Coring apparatus and methods
10/19/2011	EP2378055A1 A method for the reconstruction of wells through the removal of the old casing by using a single reverse-circulation perforation and relative device
10/19/2011	EP2376738A2 Roller cones having non integral cutting structures, drill bits including such cones, and methods of forming same
10/19/2011	CN102224318A Drilling tool, in particular for drilling and/or cutting devices
10/19/2011	CN102224317A Insert for an attack tool, method for making same and tools incorporating same
10/19/2011	CN102223976A Drilling tool for drilling and/or cutting device
10/19/2011	CN102223973A A polycrystalline diamond composite compact element, tools incorporating same and method for making same
10/19/2011	CN102221042A Bearing assemblies,bearing apparatuses using the same, and related methods
10/19/2011	CN102220845A Pressure reducing and speed raising drill structure
10/19/2011	CN102220844A Plug-in type diamond composite sheet anchor rod drill bit and connecting sleeve thereof
10/19/2011	CN102220760A Method for casting deep inverted T-shaped pile
10/19/2011	CN101120155B Integrated magnetic ranging tool
10/18/2011	US8037951 Cutter having shaped working surface with varying edge chamfer
10/18/2011	CA2657926C Cemented tungsten carbide rock bit cone
10/13/2011	WO2011090618A4 Earth-boring tools having differing cutting elements on a blade and related methods
10/13/2011	WO2011089117A3 Pick tool and method for making same
10/13/2011	WO2011084944A3 High-shear roller cone and pdc hybrid bit
10/13/2011	US20110247882 Exhaust Port in a Protruding Element of a Downhole Drill Bit
10/13/2011	CA2795560A1 Two-part drilling tool for the percussive or rotary-percussive drilling of holes in soil material or rock material
10/12/2011	EP2373867A2 Engineered bearing surface for rock drilling bit
10/12/2011	CN202007640U Fractured formation corer driven by spiral drilling rig
10/12/2011	CN202007631U Small-caliber bottom-expanding reamer for geological drilling construction
10/12/2011	CN102216554A Drill bit with continuously sharp edge cutting elements
10/12/2011	CN102216553A Drill bit with continuously sharp edge cutting elements
10/12/2011	CN102213079A Mine drill bit
10/12/2011	CN102213078A Internal spiral nozzle with diversion trench
10/12/2011	CN102213077A Coal seam reaming system using three-dimensional (3D) swirling water jet and reaming and fracturing method for permeability enhancement
10/12/2011	CN101094741B Cutting inserts with cutting end anchor portion

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