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)
04/2010
04/29/2010US20100101802 Drilling Head for Reboring a Stuck Valve
04/29/2010CA2741197A1 Insert for an attack tool, method for making same and tools incorporating same
04/28/2010EP2178665A1 Bonding agents for improved sintering of earth-boring tools, methods of forming earth-boring tools and resulting structures
04/28/2010CN201443302U Four-hole hydraulic jet bit
04/28/2010CN101699020A Rotary underreamer
04/27/2010US7707009 Drill bit performance analysis tool
04/27/2010US7703560 Cutting element with canted interface surface and bit body incorporating the same
04/27/2010US7703559 Rolling cutter
04/27/2010US7703558 Drilling tool for reducing cutter damage when drilling through formation changes, and methods of design and operation thereof
04/27/2010US7703557 Fixed cutter bit with backup cutter elements on primary blades
04/27/2010US7703556 Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methods
04/27/2010US7703555 Drilling tools having hardfacing with nickel-based matrix materials and hard particles
04/27/2010US7703553 Downhole tool having radially extendable members
04/27/2010US7703354 Method of forming a nozzle retention body
04/27/2010CA2563188C Drill bit and cutter element having aggressive leading side
04/22/2010WO2010045176A1 Spacer ring for elastomeric seal
04/22/2010WO2010045171A2 Bit based formation evaluation using a gamma ray sensor
04/22/2010WO2010045170A1 Drill bit with continuously sharp edge cutting elements
04/22/2010WO2010045167A2 Drill bit with continously sharp edge cutting elements
04/22/2010WO2010045165A2 Drill bit with continuously sharp edge cutting elements
04/22/2010WO2010045164A2 Drill bit with continuously sharp edge cutting elements
04/22/2010WO2010043690A1 Method for installing sensors in a borehole
04/22/2010WO2010009085A3 System, program product, and related methods for bit design optimization and selection
04/22/2010WO2009135116A4 Stabilizer and reamer system having extensible blades and bearing pads and methods of using same
04/22/2010US20100098500 Drilling tool, a self-drilling rock bolt, a drill bit, an anchoring device for a self-drilling rock bolt, a shaft for a drilling tool and an end coupling for a drilling tool
04/22/2010US20100096191 Underreaming and Stabilization Tool for Use in a Borehole and Method for Its Use
04/22/2010US20100096188 Reamer roller cone bit with stepped reamer cutter profile
04/22/2010DE112008001519T5 Bohrmeißel Drill bit
04/22/2010CA2740218A1 Drill bit with continuously sharp edge cutting elements
04/22/2010CA2740216A1 Drill bit with continuously sharp edge cutting elements
04/21/2010EP2176501A1 Compliantly coupled cutting/gauge pad system
04/21/2010EP2176500A2 Pdc cutter with stress diffusing structures
04/21/2010EP2176499A2 Cutting element for subterranean drilling
04/21/2010EP2176498A2 Roller cone bit bearing, and bearing materials
04/21/2010EP2176495A1 Motor bit system
04/21/2010EP2176493A1 Drill bit gauge pad control
04/21/2010CN201439687U Drilling machine for three-circle interconnected bored pile
04/20/2010US7699126 Cutting element having asymmetrical crest for roller cone drill bit
04/20/2010US7699119 Auger quick coupler
04/20/2010CA2492626C Flexible wellbore broach
04/20/2010CA2467003C Fluid drilling head
04/15/2010WO2010042797A2 Drill bit with adjustable axial pad for controlling torsional fluctuations
04/15/2010WO2010042719A2 Methods and apparatus for mechanical and thermal drilling
04/15/2010WO2010009430A3 Methods of forming thermally stable polycrystalline diamond cutters
04/15/2010WO2010009416A3 Methods of forming polycrystalline diamond cutters
04/15/2010WO2010005890A3 Earth-boring tools having features for affecting cuttings flow and methods of forming the same
04/15/2010US20100089664 Drill bit with continuously sharp edge cutting elements
04/15/2010US20100089663 Nondestructive Device and Method for Evaluating Ultra-Hard Polycrystalline Constructions
04/15/2010US20100089662 Active gauge protection for drill bits
04/15/2010US20100089661 Drill bit with continuously sharp edge cutting elements
04/15/2010US20100089660 Drill bits with axially-tapered waterways
04/15/2010US20100089659 Drilling Tool
04/15/2010US20100089658 Drill bit with continuously sharp edge cutting elements
04/15/2010US20100089657 Spacer ring for elastomeric seal
04/15/2010US20100089656 Roller Cone Drill Bits with Improved Fluid Flow
04/15/2010US20100089649 Drill bit with continuously sharp edge cutting elements
04/15/2010US20100089648 Fixed Bladed Bit that Shifts Weight between an Indenter and Cutting Elements
04/15/2010US20100089645 Bit Based Formation Evaluation Using A Gamma Ray Sensor
04/15/2010US20100089583 Extendable cutting tools for use in a wellbore
04/15/2010DE202010001534U1 Brunnenbohrgerät mit einem Energieversorgungsschlauch und Führungsgestänge Well drilling rigs with an energy supply hose and guide rod
04/15/2010CA2740052A1 Methods and apparatus for mechanical and thermal drilling
04/15/2010CA2736710A1 Drill bit with adjustable axial pad for controlling torsional fluctuations
04/14/2010EP2173963A2 Rotationally indexable cutting elements and drill bits therefor
04/14/2010EP2173962A2 Rounded cutter pocket having reduced stressed concentration
04/14/2010EP2173961A2 Pdc cutter with oval cross-section
04/14/2010EP2173518A2 Process of drill bit manufacture
04/13/2010US7695542 contain a diamond-impregnated cutting portion that contains fibers made from carbon, glass, ceramics, polymers, and the like; fibers can be in any form, including chopped and milled fibers; tools last longer and are safer and more economical because they need to be replaced less often
04/13/2010US7694757 Thermally stable polycrystalline diamond materials, cutting elements incorporating the same and bits incorporating such cutting elements
04/13/2010US7694756 Indenting member for a drill bit
04/13/2010US7694755 System, method, and apparatus for variable junk slot depth in drill bit body to alleviate balling
04/13/2010US7694754 Stabilized seal for rock bits
04/13/2010US7694752 Dry drilling
04/13/2010CA2531397C Methods for modeling wear of fixed cutter bits and for designing and optimizing fixed cutter bits
04/08/2010WO2010014327A3 Cutting bit for mining and excavating tools
04/08/2010WO2010008990A3 Earth boring tools and methods of making earth boring tools including an impact material, and methods of drilling through casing
04/08/2010WO2009156736A3 Reaming tool
04/08/2010US20100084198 Cutters for fixed cutter bits
04/08/2010US20100084197 Diamond bonded construction with thermally stable region
04/08/2010US20100084196 Polycrystalline diamond, polycrystalline diamond compact, method of fabricating same, and various applications
04/08/2010US20100084195 Distance holder with jet deflector
04/08/2010US20100084194 Thermally Stable Ultra-Hard Polycrystalline Materials and Compacts
04/08/2010DE102008049795A1 Pressure sealed closure for inner core tube region for supporting sampling of sediments in deep sea, has floating piston positioned with sealing function and drilling-progress-dependent automatic release function at lower end of liner
04/07/2010EP2171210A1 Method and device for drilling a hole in ground or rock material and forming a brace
04/07/2010EP2171205A1 Interchangeable bearing blocks for drill bits, and drill bits including same
04/07/2010CN201436365U Split type rock reamer
04/06/2010US7693695 Methods for modeling, displaying, designing, and optimizing fixed cutter bits
04/06/2010US7691173 Consolidated hard materials, earth-boring rotary drill bits including such hard materials, and methods of forming such hard materials
04/06/2010US7690446 Single cone rock bit having inserts adapted to maintain hole gage during drilling
04/06/2010US7690442 Drill bit and cutting inserts for hard/abrasive formations
04/06/2010CA2617384C Bearing and lubrication system for earth boring bit
04/03/2010CA2678910A1 Diamond bonded construction with thermally stable region
04/01/2010WO2010036834A2 Drill bit with adjustable steering pads
04/01/2010WO2010036833A2 Steel tooth disk with hardfacing
04/01/2010WO2010036832A2 Downhole vibration monitoring for reaming tools
04/01/2010WO2010036569A2 Novel hardmetal for use in oil and gas drilling applications
04/01/2010WO2010036498A1 Rock drill bit
04/01/2010WO2010014725A3 Earth boring drill bits with using opposed kerfing for cutters
04/01/2010WO2010002629A3 Method to reduce carbide erosion of pdc cutter
04/01/2010WO2009152196A3 Method of selectively adapting material properties across a rock bit cone
04/01/2010WO2009152195A3 Methods of forming earth-boring tools including sinterbonded components and tools formed by such methods
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