| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 07/04/2012 | CN102536124A Single-roller bit with PDC (polycrystalline diamond compact) composite plates |
| 07/04/2012 | CN102536123A Gas lift reverse circulation diamond bit |
| 07/04/2012 | CN102536122A Clay drill bit |
| 07/04/2012 | CN102535445A Molding device and molding method for long spiral extruding rock-entering cast-in-place pile |
| 07/04/2012 | CN101737005B Drilling tool for sleeving anchor cable and construction method for sleeving anchor cable with simultaneous casing |
| 07/04/2012 | CN101285372B Hollow drill bit and cutting element and its production method |
| 07/03/2012 | US8210288 Rotary drill bits with protected cutting elements and methods |
| 07/03/2012 | US8210287 Mining core drill bit and method of making thereof |
| 07/03/2012 | US8210286 Impregnated rotary bit |
| 07/03/2012 | US8210285 Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element |
| 07/03/2012 | CA2720870C Reamer with polycrystalline diamond compact inserts |
| 06/28/2012 | WO2012088215A2 Sensory output apparatus, system and method |
| 06/28/2012 | WO2012088115A2 Method and apparatus for drilling a zero-radius lateral |
| 06/28/2012 | WO2012088102A2 Method and apparatus for milling a zero radius lateral window in casing |
| 06/28/2012 | WO2012087768A2 Projection interface techniques |
| 06/28/2012 | WO2012087712A2 One trip multiple string section milling of subterranean tubulars |
| 06/28/2012 | WO2012058562A3 Interface design of tsp shear cutters |
| 06/28/2012 | WO2012047837A3 Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods |
| 06/28/2012 | WO2012040570A3 Apparatus and method for drilling wellbores |
| 06/28/2012 | WO2012036849A3 Impregnated drill bits with integrated reamers |
| 06/28/2012 | US20120160573 Drill Bits, Cutting Elements for Drill Bits, and Drilling Apparatuses Including the Same |
| 06/28/2012 | US20120160572 Vibration-Resistant Seal for Downhole Tool |
| 06/28/2012 | US20120160562 Earth removal member with features for facilitating drill-through |
| 06/28/2012 | US20120160561 Semi-sealed blast hole bit and method for drilling |
| 06/28/2012 | DE102010063859A1 Werkzeug und Verfahren zum Reinigen eines Bohrlochs Tool and method for cleaning a borehole |
| 06/28/2012 | CA2822619A1 Method and apparatus for drilling a zero-radius lateral |
| 06/28/2012 | CA2822614A1 Method and apparatus for milling a zero radius lateral window in casing |
| 06/28/2012 | CA2821736A1 Protective system and chemical agents for leaching polycrystalline diamond elements and for recovery of leached materials |
| 06/28/2012 | CA2820954A1 Earth removal member with features for facilitating drill-through |
| 06/27/2012 | EP2468960A1 Ground drilling method and apparatus. |
| 06/27/2012 | EP2467559A2 Improved non-planar interface construction |
| 06/27/2012 | EP2467558A2 Method of forming polystalline diamond elements, polycrystalline diamond elements, and earth boring tools carrying such polycrystalline diamond elements |
| 06/27/2012 | EP2467557A2 Cutting elements having different interstitial materials in multi-layer diamond tables, earth-boring tools including such cutting elements, and methods of forming same |
| 06/27/2012 | EP2467556A2 Expandable downhole tool apparatus |
| 06/27/2012 | EP2467555A2 Downhole expandable roller bearing apparatus |
| 06/27/2012 | EP2367654B1 Drill bit for drilling and/or cutting device |
| 06/27/2012 | EP2198108B1 Hydrodynamic bearing assemblies, and hydrodynamic bearing apparatuses and motor assemblies using same |
| 06/27/2012 | CN101204743B Rotary percussion drill bit with a hard material insert |
| 06/26/2012 | US8206474 Abrasive compacts |
| 06/26/2012 | US8205693 Casing and liner drilling shoes having selected profile geometries, and related methods |
| 06/26/2012 | US8205692 Rock bit and inserts with a chisel crest having a broadened region |
| 06/26/2012 | US8205689 Stabilizer and reamer system having extensible blades and bearing pads and method of using same |
| 06/26/2012 | CA2535415C Rock drill bit |
| 06/21/2012 | WO2012080819A2 Optimized drilling |
| 06/21/2012 | WO2012080812A2 Drilling optimization with a downhole motor |
| 06/21/2012 | US20120152625 Bonding structure and bonding method for cemented carbide element and diamond element, cutting tip and cutting element for drilling tool, and drilling tool |
| 06/21/2012 | US20120152624 PDC Bits with Mixed Cutter Blades |
| 06/21/2012 | US20120152623 Pdc bits with cutters laid out in both spiral directions of bit rotation |
| 06/21/2012 | US20120152622 In-Situ Boron Doped PDC Element |
| 06/21/2012 | US20120152621 Offset Rock Bit With Pull Back Adapter |
| 06/21/2012 | US20120152620 Device and method for protecting the rock drilling machine from corrosion |
| 06/21/2012 | US20120151848 Toughness of Polycrystalline Diamond by Incorporation of Bulk Metal Foils |
| 06/21/2012 | CA2821495A1 Pdc bits with cutters laid out in both spiral directions of bit rotation |
| 06/21/2012 | CA2819319A1 Optimized drilling |
| 06/21/2012 | CA2819318A1 Drilling optimization with a downhole motor |
| 06/20/2012 | EP2464817A1 Actuator and method |
| 06/20/2012 | EP2464810A2 Methods of forming polycrystalline diamond cutting elements, cutting elements, and earth boring tools carrying cutting elements |
| 06/20/2012 | EP2464809A2 Diamond impregnated bit with aggressive face profile |
| 06/20/2012 | EP2464808A2 Roller cone disk with shaped compacts |
| 06/20/2012 | CN202280427U 一种地下孔眼扩进作业用平衡组合钻具 Expanded into an underground hole with a balanced combination of drilling operations |
| 06/20/2012 | CN202280426U 一种水泥土双向搅拌桩机的注水气钻头 A cement way mixing pile of soil water gas drill |
| 06/20/2012 | CN202280423U 新型无钻杆钻机 New non-drill rig |
| 06/20/2012 | CN102505919A Bearizing drilling bit |
| 06/20/2012 | CN102503426A Diamond-impregnated bit nozzle material and preparation method for same |
| 06/20/2012 | CN101608533B Drill bit impregnated with diamond film and manufacturing method thereof |
| 06/20/2012 | CN101200994B Method and apparatus for creating a borehole in the ground |
| 06/19/2012 | US8202335 Superabrasive elements, methods of manufacturing, and drill bits including same |
| 06/19/2012 | US8201648 Earth-boring particle-matrix rotary drill bit and method of making the same |
| 06/19/2012 | US8201647 Earth drilling reamer with replaceable blades |
| 06/19/2012 | US8201646 Method and apparatus for a true geometry, durable rotating drill bit |
| 06/14/2012 | WO2012078314A1 Method of partially infiltrating an at least partially leached polycrystalline diamond table and resultant polycrystalline diamond compacts |
| 06/14/2012 | WO2012078220A1 Shoulder durability enhancement for a pdc drill bit using secondary and tertiary cutting elements |
| 06/14/2012 | WO2012075671A1 High efficiency crack-resistant reduced-dusting milling cutter |
| 06/14/2012 | WO2012053733A3 Method for constructing a footing at the bottom of a pile and a fixed anchorage portion of a tension member, and tool for expanding a borehole wall for same |
| 06/14/2012 | WO2012050674A4 Bearing systems containing diamond enhanced materials and downhole applications for same |
| 06/14/2012 | WO2012047863A3 Remotely controlled apparatus for downhole applications and related methods |
| 06/14/2012 | US20120145465 Drill bit |
| 06/14/2012 | US20120145464 Bit assembly for a down-the-hole hammer drill |
| 06/13/2012 | EP2462311A2 Polycrystalline compacts including in-situ nucleated grains earth-boring tools including such compacts, and methods of forming such compacts and tools |
| 06/13/2012 | EP2462310A2 Method of forming a thermally stable diamond cutting element |
| 06/13/2012 | EP2462309A2 Superabrasive cutters with grooves on the cutting face and drill bits and drilling tools so equipped |
| 06/13/2012 | EP2462308A2 Thermally stable polycrystalline diamond constructions |
| 06/13/2012 | EP2462307A2 Drill bit with an adjustable steering device |
| 06/13/2012 | EP2462306A2 Cutting element placement on a fixed cutter drill bit to reduce diamond table fracture |
| 06/13/2012 | EP2462305A2 Anti-tracking spear-points for earth-boring drill bits |
| 06/13/2012 | CN202273592U 两节式激光钻头 Two laser drill |
| 06/13/2012 | CN202273591U 金刚石钻头 Diamond drill |
| 06/13/2012 | CN102493769A Swallow-tailed sliding-type wing-profile drill |
| 06/13/2012 | CN102493762A Rectangular cast-in-place pile slotting combined drilling rig |
| 06/12/2012 | US8196683 Impregnated rotary bit |
| 06/12/2012 | US8196682 Earth boring bit with wear resistant bearing and seal |
| 06/12/2012 | US8196681 Earth boring device |
| 06/12/2012 | US8196679 Expandable reamers for subterranean drilling and related methods |
| 06/12/2012 | CA2593951C Diamond impregnated bits using a novel cutting structure |
| 06/07/2012 | WO2012075134A2 Hardfacing configuration for a drilling tool |
| 06/07/2012 | WO2012074755A2 Cutter with diamond sensors for acquiring information relating to an earth-boring drilling tool |
| 06/07/2012 | US20120138370 Method of partially infiltrating an at least partially leached polycrystalline diamond table and resultant polycrystalline diamond compacts |
| 06/07/2012 | US20120138369 Methods to manufacture downhole tools with finished features as an integral cage |
| 06/07/2012 | US20120138365 Shoulder durability enhancement for a pdc drill bit using secondary and tertiary cutting elements |
| 06/07/2012 | US20120138301 Controllably Installed Multilateral Completions Assembly |