| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 05/05/2011 | WO2010132232A4 Hybrid drill bit |
| 05/05/2011 | US20110100724 Fixed Cutter Bit for Directional Drilling Applications |
| 05/05/2011 | US20110100723 Reaming tool |
| 05/05/2011 | US20110100722 Rotary roller reamer |
| 05/05/2011 | US20110100721 Rotary drill bits including bearing blocks |
| 05/05/2011 | US20110100714 Backup cutting elements on non-concentric earth-boring tools and related methods |
| 05/04/2011 | CN201817808U Concrete vibrating steel dowel long spiral air-cooled guide hole piling drilling machine |
| 05/04/2011 | CN102046913A Texturing of the seal surface for a roller cone rock bit |
| 05/04/2011 | CN102041968A Large-diameter drill suitable for forming hole in mud cemented boulder-gravel formation |
| 05/04/2011 | CN102041966A In-seam or across-seam double-power quick drilling and chambering integrated device and method |
| 05/04/2011 | CN102041965A Coal mine underground over-broken abnormal zone drilling method |
| 05/04/2011 | CN102039415A Molybdenum iron boron ternary metal-ceramic alloy vacuum sintered friction welding boring bit |
| 05/04/2011 | CN101285371B Fabrication technology of diamond positioning and arrangement impregnated rock bit |
| 04/28/2011 | WO2011050061A2 Through drillstring logging systems and methods |
| 04/28/2011 | WO2011049864A2 Cutting structures for casing component drillout and earth-boring drill bits including same |
| 04/28/2011 | WO2011049581A1 Downhole tool with stabilizer and reamer and related methods |
| 04/28/2011 | WO2011017394A3 Cutting element placement on a fixed cutter drill bit to reduce diamond table fracture |
| 04/28/2011 | WO2011014591A3 Manufacturing methods for high shear roller cone bits |
| 04/28/2011 | WO2011014590A3 High shear roller cone drill bits |
| 04/28/2011 | WO2011011290A3 Diamond-enhanced cutting elements, earth-boring tools employing diamond-enhanced cutting elements, and methods of making diamond-enhanced cutting elements |
| 04/28/2011 | WO2011008661A3 Drill bit with extended life seal |
| 04/28/2011 | WO2010129253A4 Adaptive control concept for hybrid pdc/roller cone bits |
| 04/28/2011 | DE202011003422U1 Kernlochbohrer Core drill |
| 04/28/2011 | CA2778190A1 Wellbore completion |
| 04/28/2011 | CA2777471A1 Through drillstring logging systems and methods |
| 04/27/2011 | EP2314825A1 Drilling head for reboring a stuck valve |
| 04/27/2011 | EP2313596A2 Methods for sintering bodies of earth boring tools and structures formed during the same |
| 04/27/2011 | EP2313595A2 Methods of forming earth-boring tools using geometric compensation and tools formed by such methods |
| 04/27/2011 | EP1318969B1 High volume density polycrystalline diamond with working surfaces depleted of catalyzing material |
| 04/27/2011 | CN201810217U Polycrystalline diamond compact (PDC) drill bit |
| 04/27/2011 | CN201810216U Low-friction-resistance drilling bit |
| 04/27/2011 | CN201810215U Side tooth gauge protection reamer |
| 04/27/2011 | CN201810214U Soft formation side tooth gauge protection reamer |
| 04/27/2011 | CN201810213U Hydraulic mechanical cave forming tool |
| 04/27/2011 | CN201810212U Roller bit having equivalent long journal bearing |
| 04/27/2011 | CN201810211U Cone bit with composite thrust brake |
| 04/27/2011 | CN201810210U High-speed, high-pressure-resistant, shock-resistant and elastic rolling bearing cone bit |
| 04/27/2011 | CN201810209U Roller bit with annular elastic floating bushing |
| 04/27/2011 | CN201810208U Roller bit with elastic floating bushing |
| 04/27/2011 | CN201810207U Rotary excavation drilling machine and rotary excavation drilling tool thereof |
| 04/27/2011 | CN201810206U High pressure water jet drilling and expanding integrated device |
| 04/27/2011 | CN102037208A Texturing of the bearing surface for a roller cone rock bit |
| 04/27/2011 | CN102031931A Self-rotating jet drilling device |
| 04/27/2011 | CN102031784A Slope protection pile pouring and cable bolting construction method for deep foundation pit |
| 04/26/2011 | US7931098 Steerable bit system assembly and methods |
| 04/21/2011 | WO2011046960A2 Downhole tool |
| 04/21/2011 | WO2011046859A2 Casing rotary steerable system for drilling |
| 04/21/2011 | WO2011046838A2 Polycrystalline compacts including nanoparticulate inclusions, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts |
| 04/21/2011 | WO2011046744A2 Hybrid drill bit and method of using tsp or mosaic cutters on a hybrid bit |
| 04/21/2011 | WO2011046444A1 Rock drilling machine |
| 04/21/2011 | WO2011005996A3 Cutting element for a drill bit used in drilling subterranean formations |
| 04/21/2011 | WO2011005994A3 Cutting element and method of forming thereof |
| 04/21/2011 | WO2010126817A4 Bearing blocks for drill bits, drill bit assemblies including bearing blocks and related methods |
| 04/21/2011 | US20110088955 Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element |
| 04/21/2011 | US20110088954 Polycrystalline compacts including nanoparticulate inclusions, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts |
| 04/21/2011 | US20110088950 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 |
| 04/21/2011 | US20110088330 Abrasive Tool |
| 04/21/2011 | CA2777110A1 Polycrystalline compacts including nanoparticulate inclusions, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts |
| 04/21/2011 | CA2775801A1 Downhole tool |
| 04/20/2011 | EP2310612A2 Modular hybrid drill bit |
| 04/20/2011 | CN201802317U Assembly type diamond composite piece |
| 04/20/2011 | CN201802316U PDC (polycrystalline diamond compact) drilling teeth with layer interface adopting composite structure |
| 04/20/2011 | CN201802315U Large diameter diamond drill for drilling construction, with Phi being more than 325 |
| 04/20/2011 | CN201802314U Two-way rotary mixing drill bit of mixing pile machine |
| 04/20/2011 | CN201802313U Combined rock reamer |
| 04/20/2011 | CN201802312U Toothed wheel mechanism for rock reamer |
| 04/20/2011 | CN201802311U Tricone bit for drilling well at high rotating speed |
| 04/20/2011 | CN201802310U Excavation drilling machine |
| 04/20/2011 | CN1657271B Extrusion auger and extrusion auger device |
| 04/20/2011 | CN102022085A Bidirectional hydraulic structure for reamer |
| 04/20/2011 | CN102022084A Compound single cone bit |
| 04/20/2011 | CN102022077A Drilling device for underground embedded pipe orifice well of soil source heat pump system |
| 04/20/2011 | CN102022076A Drilling method of rotary drilling machine in hard rock and special-purpose sediment pipe core cone bit |
| 04/20/2011 | CN101333910B Roller bit possessing function for preventing cone shedding |
| 04/20/2011 | CN101072924B Rotary drill bit having cutting insert with a notch |
| 04/19/2011 | US7926597 Fixed cutter bit and blade for a fixed cutter bit and methods for making the same |
| 04/19/2011 | US7926596 Drag bit with utility blades |
| 04/19/2011 | CA2623231C Earth boring drill bits with casing component drill out capability, cutting elements for same, and methods of use |
| 04/19/2011 | CA2512833C Wellstring assembly |
| 04/19/2011 | CA2455716C High-strength/high-toughness alloy steel drill bit blank |
| 04/14/2011 | WO2011044147A2 Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of directional and off center drilling |
| 04/14/2011 | WO2011043988A2 Hole opener with hybrid reaming section |
| 04/14/2011 | WO2011043987A2 Hole opener with hybrid reaming section |
| 04/14/2011 | WO2011043986A2 Hole opener with hybrid reaming section |
| 04/14/2011 | WO2011043985A2 Hole opener with hybrid reaming section |
| 04/14/2011 | WO2011043717A1 Hard metal insert for a drill bit for percussion drilling and method for grinding a hard metal insert |
| 04/14/2011 | WO2011042715A1 Cutting tool inserts |
| 04/14/2011 | WO2011002993A3 Stabilizing members for fixed cutter drill bit |
| 04/14/2011 | US20110083909 Diamond Bonded Construction with Reattached Diamond Body |
| 04/14/2011 | US20110083908 Diamond Bonded Construction Comprising Multi-Sintered Polycrystalline Diamond |
| 04/14/2011 | US20110083907 Polycrystalline diamond |
| 04/14/2011 | US20110083906 Fixed Bladed Drill Bit Force Balanced by Blade Spacing |
| 04/14/2011 | CA2776642A1 Hole opener with hybrid reaming section |
| 04/14/2011 | CA2776640A1 Hole opener with hybrid reaming section |
| 04/14/2011 | CA2776639A1 Hole opener with hybrid reaming section |
| 04/14/2011 | CA2776575A1 Hole opener with hybrid reaming section |
| 04/14/2011 | CA2773941A1 Hard metal insert for a drill bit for percussion drilling and method for grinding a hard metal insert |
| 04/13/2011 | EP2307659A2 Composite metal, cemented carbide bit construction |
| 04/13/2011 | EP2307658A2 Methods of attaching a shank to a body of an earth boring tool including a load bearing joint and tools formed by such methods |
| 04/13/2011 | EP2307656A2 Reaming tool |