| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 04/13/2011 | EP2307655A2 Reaming tool |
| 04/13/2011 | CN201794518U Drill bit on large-caliber scraper drill |
| 04/13/2011 | CN201794517U Full-strata churn rock roller bit |
| 04/13/2011 | CN102011555A Double-cone and double-helix drill bit for rotary drilling rig |
| 04/13/2011 | CN102011554A Bipyramid double-helix drill bit used for rotary drilling rig and provided with torpedo warhead at bottom end |
| 04/13/2011 | CN102011553A Double-helix drill bit of rotary drilling rig |
| 04/13/2011 | CN102011552A Single-cone single spiral drill bit of rotary drilling rig |
| 04/13/2011 | CN102011551A Non-core rock cylindrical drill with sawteeth at bottom for rotary drilling rig |
| 04/13/2011 | CN102011550A Mining roller bit with nozzle and installation method thereof |
| 04/13/2011 | CN102011549A Non-coring cylindrical rock drill of rotary drilling rig |
| 04/13/2011 | CN102011548A Three-layer rock-socketed tube drill of rotary drilling rig |
| 04/13/2011 | CN102011546A Large-diameter engineering well holing construction method in super-thick pebble formation |
| 04/12/2011 | CA2598057C Drill bit with cutter element having multifaceted, slanted top cutting surface |
| 04/12/2011 | CA2521658C Expanded liner system and method |
| 04/07/2011 | WO2011041693A2 Cutting elements configured to generate shear lips during use in cutting, earth-boring tools including such cutting elements, and methods of forming and using such cutting elements and earth-boring tools |
| 04/07/2011 | WO2011041685A2 Milling tool for establishing openings in wellbore obstructions |
| 04/07/2011 | WO2011041562A2 Remotely controlled apparatus for downhole applications and methods of operation |
| 04/07/2011 | WO2011041553A2 Tools for use in drilling or enlarging well bores having expandable structures and methods of making and using such tools |
| 04/07/2011 | WO2011041532A2 Earth-boring tools having expandable members and related methods |
| 04/07/2011 | WO2011041521A2 Earth-boring tools having expandable cutting structures and methods of using such earth-boring tools |
| 04/07/2011 | WO2011041432A2 Earth-boring tools and components thereof including blockage resistant internal fluid passageways, and methods of forming such tools and components |
| 04/07/2011 | WO2011041174A2 Earth boring tools having expandable members |
| 04/07/2011 | WO2011041173A2 Production of reduced catalyst pdc via gradient driven reactivity |
| 04/07/2011 | WO2011038866A2 Boring element of a ground boring device |
| 04/07/2011 | WO2010148313A3 Polycrystalline diamond cutting elements with engineered porosity and method for manufacturing such cutting elements |
| 04/07/2011 | WO2010148264A3 Hybrid bit with variable exposure |
| 04/07/2011 | US20110079446 Earth-boring tools and components thereof and methods of attaching components of an earth-boring tool |
| 04/07/2011 | US20110079445 Drill Head for Deep-Hole Drilling |
| 04/07/2011 | US20110079444 External, Divorced PDC Bearing Assemblies for Hybrid Drill Bits |
| 04/07/2011 | US20110079443 Hole opener with hybrid reaming section |
| 04/07/2011 | US20110079442 Hole opener with hybrid reaming section |
| 04/07/2011 | US20110079441 Hole opener with hybrid reaming section |
| 04/07/2011 | US20110079440 Hole opener with hybrid reaming section |
| 04/07/2011 | US20110079438 Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of directional and off center drilling |
| 04/07/2011 | US20110079433 Pump-in seal |
| 04/07/2011 | US20110079432 Method and device for core drilling |
| 04/07/2011 | DE102009043158A1 Earth-drilling device for expanding drilling, has tool installed at end of connecting rod comprising conical sheath body and complementary parts, where body is formed as hollow cone and loosely connected with connecting rod end piece |
| 04/07/2011 | CA2776780A1 Cutting elements configured to generate shear lips during use in cutting, earth-boring tools including such cutting elements, and methods of forming and using such cutting elements and earth-boring tools |
| 04/07/2011 | CA2776158A1 Wellbore milling tool with wear pad |
| 04/07/2011 | CA2775842A1 Earth-boring tools having expandable members |
| 04/07/2011 | CA2775744A1 Remotely controlled apparatus for downhole applications and methods of operation |
| 04/07/2011 | CA2775740A1 Tools for use in drilling or enlarging well bores having expandable structures and methods of making and using such tools |
| 04/07/2011 | CA2775729A1 Earth-boring tools having expandable members and related methods |
| 04/07/2011 | CA2775725A1 Earth-boring tools having expandable cutting structures and methods of using such earth-boring tools |
| 04/07/2011 | CA2775566A1 Production of reduced catalyst pdc via gradient driven reactivity |
| 04/06/2011 | EP2304163A2 Method of selectively adapting material properties across a rock bit cone |
| 04/06/2011 | EP2304162A2 Methods of forming earth-boring tools including sinterbonded components and tools formed by such methods |
| 04/06/2011 | EP2304161A2 Arrangement of cutting elements on roller cones for earth boring bits |
| 04/06/2011 | EP1337734B1 Drill bit |
| 04/06/2011 | CN201786266U Thin-wall matrix drill bit |
| 04/06/2011 | CN201786265U Polycrystalline diamond compact (PDC) drill head with stable tool face for directional driller |
| 04/06/2011 | CN201786264U Plowshare drill |
| 04/06/2011 | CN201786263U Roller bit adapted to high-speed and high-temperature drilling |
| 04/06/2011 | CN201786262U Two-stage radial rubber seal roller bit |
| 04/06/2011 | CN201786261U Mining tricone bit with check device |
| 04/06/2011 | CN201784215U Diamond/hard alloy compact |
| 04/06/2011 | CN102007072A Matrix powder for matrix body fixed cutter bits |
| 04/06/2011 | CN102003147A Polycrystalline diamond compact for drilling and rock-breaking tool |
| 04/06/2011 | CN102003146A Full-hydraulic reamer |
| 04/06/2011 | CN102003145A Hole driven type horizontal directional drilling reverse circulation hole dilating drill |
| 04/06/2011 | CN102003144A Fractal design method for roller bit gear teeth structure |
| 04/06/2011 | CN102003140A Traversing reverse circulating drilling method of horizontal directional drilling pipeline and special drilling bit |
| 04/06/2011 | CN102003138A Construction method for carrying out high-precision vertical drilling on concrete and drilling device thereof |
| 04/06/2011 | CN101603309B Occlusive pile of long spiral stirring water-stop curtain and construction process thereof |
| 04/06/2011 | CN101509353B Piston type multilayer expanding bit |
| 04/06/2011 | CN101341310B Elongated sealed bearing for roller bit |
| 04/05/2011 | US7918293 Method and system for perceiving a boundary between a first region and a second region of a superabrasive volume |
| 04/05/2011 | US7918292 Earth-boring tools having features for affecting cuttings flow |
| 04/05/2011 | US7918288 Drill bits with enclosed fluid slots and method |
| 04/05/2011 | CA2641204C Earth boring bit |
| 03/31/2011 | WO2011038383A2 Earth-boring tools, methods of making earth-boring tools and methods of drilling with earth-boring tools |
| 03/31/2011 | WO2011038263A2 Cutting element and method of forming thereof |
| 03/31/2011 | WO2011037948A2 Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
| 03/31/2011 | WO2011035432A1 Enhanced secondary substrate for polycrystalline diamond compact cutting elements |
| 03/31/2011 | WO2011003051A3 Hardfacing materials including pcd particles, welding rods and earth-boring tools including such materials, and methods of forming and using same |
| 03/31/2011 | WO2010151796A3 Stabilizing downhole tool |
| 03/31/2011 | WO2010151743A3 Sealing system and bi-directional thrust bearing arrangement for a downhole motor |
| 03/31/2011 | WO2010151649A3 Drill bit for use in drilling subterranean formations |
| 03/31/2011 | WO2010141579A3 Cutting elements including cutting tables with shaped faces configured to provide continuous effective positive back rake angeles, drill bits so equipped and methods of drilling |
| 03/31/2011 | WO2010126938A3 Secondary cutting structure |
| 03/31/2011 | WO2010121116A3 Fixed cutter bit for directional drilling applications |
| 03/31/2011 | WO2010120999A4 Drilling systems for cleaning wellbores, bits for wellbore cleaning, methods of forming such bits, and methods of cleaning wellbores using such bits |
| 03/31/2011 | US20110073380 Production of reduced catalyst pdc via gradient driven reactivity |
| 03/31/2011 | US20110073379 Cutting element and method of forming thereof |
| 03/31/2011 | US20110073378 Ultrahard Sintered Carbide Particles in Hardfacing for Earth-Boring Bit |
| 03/31/2011 | US20110073377 Earth boring tools and components thereof including blockage resistant internal fluid passageways, and methods of forming such tools and components |
| 03/31/2011 | US20110073376 Earth-boring tools having expandable members and methods of making and using such earth-boring tools |
| 03/31/2011 | US20110073373 Arrangement & method comprising a flushing head for a rock drilling machine, and rock drilling machine comprising the arrangement |
| 03/31/2011 | US20110073371 Tools for use in drilling or enlarging well bores having expandable structures and methods of making and using such tools |
| 03/31/2011 | US20110073370 Earth-boring tools having expandable cutting structures and methods of using such earth-boring tools |
| 03/31/2011 | US20110073369 Earth-boring tools, methods of making earth-boring tools and methods of drilling with earth-boring tools |
| 03/31/2011 | CA2775102A1 Cutting element and method of forming thereof |
| 03/31/2011 | CA2775085A1 Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
| 03/31/2011 | CA2774996A1 Enhanced secondary substrate for polycrystalline diamond compact cutting elements |
| 03/30/2011 | EP2302159A2 Earth removal member with features for facilitating drill-through |
| 03/30/2011 | EP2300682A1 Method and drilling apparatus for drilling |
| 03/30/2011 | CN201778659U Polycrystalline diamond compact (PDC) drill bit adaptive to complex stratum |
| 03/30/2011 | CN201778658U Reaming-while-drilling device used for casing drilling |
| 03/30/2011 | CN101999028A Reamer with polycrystalline diamond compact inserts |
| 03/30/2011 | CN101999027A Sonic drill bit for core sampling |