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
04/02/2014CN203515323U Rotary percussion-compact drill bit
04/02/2014CN203514142U T-shaped drilling pile composite foundation structure for reinforcing soft ground under highway embankment
04/02/2014CN103703209A Earth boring tools including retractable pads, cartridges including retractable pads for such tools, and related methods
04/02/2014CN103703208A Coated particles and related methods
04/02/2014CN103696699A Cobalt-free polycrystalline diamond compact (PDC) drill bit and preparation technology thereof
04/02/2014CN103696698A Grouting and hole cleaning drill bit
04/02/2014CN103696697A Rock deep-hole high-speed rhinestone drill bit and production process thereof
04/02/2014CN103696696A Anti-clamp sliding PDC (polycrystalline diamond compact) drill bit
04/02/2014CN103696695A Submarine oil twist bit and production process thereof
04/02/2014CN102744401B Geological mineral exploration device and preparation method thereof
04/02/2014CN102606078B Threaded drill bit with rotatable ring and method for using same
04/01/2014US8684112 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods
04/01/2014US8684111 Core drill bit
03/2014
03/27/2014WO2014047537A1 Mechanical caliper system for a logging while drilling (lwd) borehole caliper
03/27/2014WO2012027267A3 Pcd cutter with fins
03/27/2014WO2012027263A3 Functionally leached pcd cutter
03/27/2014US20140084669 Tip for degradation tool and tool comprising same
03/26/2014CN203499569U Water-pressure-controlled drilling and blanking integrated efficient drill bit
03/26/2014CN203499568U Split PDC (polycrystalline diamond compact) guide chambering drilling bit
03/26/2014CN203499567U Self-breaking type micro coring drill bit
03/26/2014CN203499566U Twisting-off and falling-off prevention drilling tool
03/26/2014CN203499565U Drill head of reverse circulation air hammer
03/26/2014CN203499564U Oil gas well neck-eye type hole forming tool
03/26/2014CN203499563U Reamer bit
03/26/2014CN103688012A Extruded powder metal compact
03/26/2014CN103688011A Core and drill bits with integrated optical analyzer
03/26/2014CN103687829A Brazed coated diamond-containing materials
03/26/2014CN103670285A Efficient broad spectrum geological drill and manufacturing method thereof
03/26/2014CN103670284A Impact-resisting wear resisting tool
03/26/2014CN103670283A Transverse-broaching device
03/26/2014CN103670282A Sealing ring special for rock bit and rock bit
03/26/2014CN103670281A Hybrid-sealed cone bit
03/26/2014CN102364032B Fixed cutting-tooth drilling bit
03/25/2014US8678111 Hybrid drill bit and design method
03/20/2014WO2014043071A1 Cutter for use in well tools
03/20/2014US20140076640 Polycrystalline diamond structure
03/20/2014US20140076639 Rock Bit and Cutter Teeth Geometries
03/19/2014EP2707573A2 Tip for degradation tool and tool comprising same
03/19/2014EP2707566A2 Pick tool
03/19/2014CN203488132U Bag multi-section binding type single-tube core taking drill
03/19/2014CN203488116U Alloy drilling rod with high strength and abrasion resistance
03/19/2014CN203488115U Long spiral drilling machine and drill bit
03/19/2014CN203488106U Oval outer circle type diamond compact anchor shank drill bit
03/19/2014CN203488105U Rectangular-tooth PDC drilling bit suitable for plastic stratums
03/19/2014CN203488104U Percussion drill impact hammer for drilled pile drilling construction in beaded type karst area
03/19/2014CN203488103U Rotary drilling tool and rotary drilling machine provided with same
03/19/2014CN203488102U Wireless mining-induced stress monitoring drill used for roadway
03/19/2014CN103643898A Splitting drill
03/19/2014CN103643897A Deflecting bit
03/18/2014US8672061 Polycrystalline ultra-hard compact constructions
03/18/2014US8672060 High shear roller cone drill bits
03/18/2014CA2704758C Methods and apparatuses for forming cutting elements having a chamfered edge for earth-boring tools
03/13/2014WO2014039771A1 Ultra-hard constructions with improved attachment strength
03/13/2014WO2014039766A1 Ultra-hard constructions with erosion resistance
03/13/2014WO2014039649A1 Selectively leached, polycrystalline structures for cutting elements of drill bits
03/13/2014WO2014039604A1 Functionally gradient elastomer material for downhole sealing element
03/13/2014WO2014039542A1 Low-friction, abrasion resistant replaceable bearing surface
03/13/2014WO2014039435A1 Method and apparatus for securing and using hyrdajetting tools
03/13/2014WO2014038798A1 Ground excavation hammer bit system and pile driving method using same
03/13/2014WO2014036615A1 Drill bit
03/13/2014WO2013156781A3 Wellbore completion system with reaming tool
03/13/2014WO2013028256A8 Impregnated drilling tools including elongated structures
03/13/2014US20140069727 Ultra-hard constructions with improved attachment strength
03/13/2014US20140069726 Selectively Leached, Polycrystalline Structures for Cutting Elements of Drill Bits
03/13/2014US20140069725 Ultra-hard constructions with erosion resistance
03/13/2014US20140069722 Hammer bit
03/12/2014EP2706186A2 Multilevel force balanced downhole drilling tools and methods
03/12/2014EP2705208A2 Earth-boring tools and methods of forming such earth-boring tools
03/12/2014CN203476214U Drill bit for drilling lower pumping-while-drilling pipes
03/12/2014CN203476213U Wear-resistant drill
03/12/2014CN203476212U Combined gauge protection drill bit
03/12/2014CN203476211U Triangle drill bit
03/12/2014CN203476210U Adamas-clad-sheet concave multi-wing coreless drill specially used for hard rock
03/12/2014CN203476209U Small-diameter deep well fullface high-counter-weight drill bit device
03/12/2014CN203476208U Soil sampler for down-the-hole drill
03/12/2014CN203476206U Horizontal directional crossing equipment adopting slurry injection technology
03/12/2014CN103635654A Methods of attaching rolling cutters in fixed cutter bits using sleeve, compression spring, and/or pin(s)/ball(s)
03/12/2014CN103635653A Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming such cutting elements for earth-boring tools
03/12/2014CN103628822A Safe and efficient gas drilling jet flow abrasive drilling bit of horizontal well
03/12/2014CN103628821A Coring bit suitable for soft-hard drilling objects
03/12/2014CN103628820A Roller bit and manufacturing method thereof
03/12/2014CN103628819A Near-bit torsion impactor
03/12/2014CN103628814A Dual-purpose concentric pipe-along drilling tool
03/12/2014CN103628480A Construction method and device for guide displacement pressure precast pile
03/11/2014US8668032 Core drill bit
03/11/2014US8668031 Drill bit and method for inserting, expanding, collapsing, and retrieving drill bit
03/06/2014WO2014036283A1 Cutting insert for a rock drill bit
03/06/2014WO2014033168A1 Polycrystalline diamond construction & method of making
03/06/2014WO2014012038A3 Improving drill bit stability using track-set depth of cut control elements
03/06/2014US20140060938 Polycrystalline diamond material with high toughness and high wear resistance
03/06/2014US20140060937 Polycrystalline diamond compact coated with high abrasion resistance diamond layers
03/06/2014US20140060934 Cutting insert for a rock drill bit
03/05/2014EP2702223A2 Casing end tool
03/05/2014CN203463023U Recoil type streamline-shaped rock drilling drill bit
03/05/2014CN203463022U Diamond composite sheet recessed multi-wing coreless mud rock special drill bit
03/05/2014CN203463021U Drill bit for excavating electric pole foundation pit in winter
03/05/2014CN203463020U Diamond thin-wall drill bit with spiral corrugated grooves
03/05/2014CN203463019U Petroleum shale gas well drilling drill bit
03/05/2014CN203463018U Drilling tool for boulder yield auger coal mining machine
03/05/2014CN203463017U Diamond-impregnated bit
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