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)
11/2010
11/02/2010US7823660 Apparatus and methods for drilling a wellbore using casing
10/2010
10/29/2010CA2702658A1 High thermal conductivity hardfacing for drilling applications
10/28/2010WO2010123954A2 Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of off center drilling
10/28/2010WO2010123953A2 Earth-boring tools and components thereof including methods of attaching at least one of a shank and a nozzle to a body of an earth-boring tool and tools and components formed by such methods
10/28/2010WO2010123906A2 Impregnated bit with increased binder percentage
10/28/2010WO2010121346A1 Drill bit assembly having electrically isolated gap joint for measurement of reservoir properties
10/28/2010WO2010121345A1 Drill bit assembly having electrically isolated gap joint for electromagnetic telemetry
10/28/2010WO2010121344A1 A drill bit assembly having aligned features
10/28/2010WO2010096629A3 Stabilizer assemblies with bearing pad locking structures and tools incorporating same
10/28/2010US20100272515 Method of developing and producing deep geothermal reservoirs
10/28/2010US20100270088 Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
10/28/2010US20100270087 Drill bit with prefabricated cuttings splitter and method of making
10/28/2010US20100270086 Earth-boring tools and components thereof including methods of attaching at least one of a shank and a nozzle to a body of an earth-boring tool and tools and components formed by such methods
10/28/2010US20100270085 Adaptive control concept for hybrid pdc/roller cone bits
10/28/2010US20100270081 Apparatus and Method for Lateral Well Drilling Utilizing a Nozzle Assembly with Gauge Ring and/or Centralizer
10/28/2010US20100270078 Method and apparatus to thwart bit balling of drill bits
10/28/2010US20100270077 Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of off-center drilling
10/28/2010CA2795478A1 A drill bit assembly having aligned features
10/27/2010EP2242892A2 Directional drilling system
10/27/2010CN201614890U 多级切割导向控制钻头 Multi-level control of the drill cutting guide
10/27/2010CN201614889U 方便装卸牙轮钻头 Easy loading and unloading cone bit
10/27/2010CN101871315A Portable optical cable identifying embedded hole boring device
10/27/2010CN101196115B Construction method for high pressure underground gas storing well
10/26/2010US7819208 Dynamically stable hybrid drill bit
10/26/2010CA2598428C Drilling tool equipped with improved cutting element layout to reduce cutter damage through formation changes, methods of design thereof and drilling therewith
10/26/2010CA2479778C Percussion drill bit and a button therefor
10/21/2010WO2010121116A2 Fixed cutter bit for directional drilling applications
10/21/2010WO2010120999A2 Drilling systems for cleaning wellbores, bits for wellbore cleaning, methods of forming such bits, and methods of cleaning wellbores using such bits
10/21/2010WO2010120997A1 Methods of forming and repairing cutting element pockets in earth-boring tools with depth-of-cut control features, and tools and structures formed by such methods
10/21/2010WO2010120696A1 A drill bit with a hybrid cutter profile
10/21/2010WO2010120180A1 Device for a downhole apparatus for machining of casings and also a method of depositing machined shavings
10/21/2010WO2010118526A1 Jetted underreamer assembly
10/21/2010WO2010083351A3 Methods of forming polycrystalline diamond cutting elements, cutting elements so formed and drill bits so equipped
10/21/2010WO2010083266A3 Impregnated drill bit with diamond pins
10/21/2010WO2010083265A3 Roller cones having non integral cutting structures, drill bits including such cones, and methods of forming same
10/21/2010WO2010022322A8 Earth-boring metal matrix rotary drill bit
10/21/2010US20100263939 High Impact Resistant Tool with an Apex Width between a First and Second Transitions
10/21/2010US20100263938 Impregnated Bit with Increased Binder Percentage
10/21/2010US20100263937 Methods of forming and repairing cutting element pockets in earth-boring tools with depth-of-cut control features, and tools and structures formed by such methods
10/21/2010US20100263936 Reamers and Methods for Directional Drilling
10/21/2010US20100263935 Earth boring rotary drill bits and methods of manufacturing earth boring rotary drill bits having particle matrix composite bit bodies
10/21/2010US20100263880 Downhole seal
10/21/2010CA2758598A1 Jetted underreamer assembly
10/21/2010CA2758448A1 Device for a downhole apparatus for machining of casings and also a method of depositing machined shavings
10/21/2010CA2758348A1 A drill bit with a hybrid cutter profile
10/20/2010CN101864899A Self-control shooting distance water jet drill
10/20/2010CN101864898A Split type steel body diamond compact bit and processing method thereof
10/20/2010CN101864768A Pile-forming drilling tool for screw pile and pile-forming construction method thereof
10/20/2010CA2700081A1 Excavation and compaction equipment for the construction of screw piles
10/19/2010US7814998 Superabrasive cutting elements with enhanced durability and increased wear life, and drilling apparatus so equipped
10/19/2010US7814997 Interchangeable bearing blocks for drill bits, and drill bits including same
10/19/2010US7814991 Process and apparatus for subterranean drilling
10/19/2010US7814990 Drilling apparatus with reduced exposure of cutters and methods of drilling
10/19/2010CA2668910C Expandable underreamer/stabilizer
10/14/2010WO2010117834A1 Methods for bonding preformed cutting tables to cutting element substrates and cutting elements formed by such processes
10/14/2010WO2010117826A1 Self positioning cutter and pocket
10/14/2010WO2010117765A1 Double sintered thermally stable polycrystalline diamond cutting elements
10/14/2010WO2010115617A2 Rotary drill bit
10/14/2010WO2010115284A1 Locking device for a drilling device
10/14/2010WO2010080868A3 Cutter profile helping in stability and steerability
10/14/2010WO2010080477A3 Hybrid drill bit with secondary backup cutters positioned with high side rake angles
10/14/2010WO2010075168A3 Earth-boring particle - matrix rotary drill bit and method of making the same
10/14/2010US20100258355 Self Positioning Cutter And Pocket
10/14/2010US20100258354 Jetted Underreamer Assembly
10/14/2010CA2758070A1 Self positioning cutter and pocket
10/14/2010CA2757678A1 Under-reamer
10/13/2010CN201606007U 改进的一字钎头 Improved word drill head
10/13/2010CN201606006U 桥梁钻孔灌注桩取石钻头 Bored stone bridge drill
10/13/2010CN201606004U 一种表层套管钻头 One kind of surface casing drill
10/13/2010CN101858200A Diamond composite sheet matrix with carbon potential gradient
10/13/2010CN101858199A Soil extrusion amount controllable bidirectional spiral extruding and expanding drill
10/13/2010CN101027456B Bottom drill combination
10/12/2010US7810587 Drill bits comprising dual-phase tungsten carbide material
10/08/2010CA2699122A1 Impactor excavation system having a drill bit discharging in a cross-over pattern
10/07/2010WO2010115146A2 Drill bit for earth boring
10/07/2010WO2010093340A3 Sealed bearing for a drilling bit rolling cutter
10/07/2010WO2010077169A3 Blade-type drill bit
10/07/2010WO2010065808A4 Method of monitoring wear of rock bit cutters
10/07/2010WO2010011542A4 Dynamically stable hybrid drill bit
10/07/2010US20100252332 Drill bit for earth boring
10/07/2010US20100252330 Down-hole Hammer Drill
10/07/2010US20100252327 Drill Bits With Cutters to Cut High Side of Wellbores
10/07/2010US20100252326 Modular system for a back reamer and method
10/07/2010CA2773336A1 Drill bit for earth boring
10/06/2010EP2236735A2 Earth-boring tools with stiff insert support regions and related methods
10/06/2010EP2235316A2 Silicon carbide composite materials, earth-boring tools comprising such materials, and methods for forming the same
10/06/2010CN201599405U 一种石油钻探用复合密封圈 A petroleum drilling composite seals
10/06/2010CN201598984U 一种用于钻进坚硬及极坚硬岩层的埋桩式金刚石钻头 A method for drilling hard and extremely hard rock underground diamond drill pile
10/06/2010CN201598983U 一种旋挖钻机及其旋挖钻具 One kind of rotary drilling rig and auger drilling
10/06/2010CN201598982U 一种双斜面空气锤钎头 A dual bevel air hammer drill bits
10/06/2010CN1711404B Roller assembly and rotary roller reamer using same
10/06/2010CN101852065A Diamond compact substrate
10/06/2010CN101852064A Hydraulic waste drilling machine
10/05/2010US7806206 Superabrasive materials, methods of fabricating same, and applications using same
10/05/2010US7806204 Sonic drill rod with external surface features
10/05/2010CA2604002C Drilling with casing
09/2010
09/30/2010WO2010111580A1 Polycrystalline diamond cutter with high thermal conductivity
09/30/2010WO2010111578A1 Backfilled polycrystalline diamond cutter with high thermal conductivity
09/30/2010WO2010111022A1 Expandable multi-flute reamer with tapered pin
09/30/2010WO2010068729A3 Bearing seal with improved contact width
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