| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 03/07/2012 | EP2425088A2 Secondary cutting structure |
| 03/07/2012 | EP2425087A2 Adaptive control concept for hybrid pdc/roller cone bits |
| 03/07/2012 | EP2425086A2 Cutter pocket design |
| 03/07/2012 | EP2173962B1 Rounded cutter pocket having reduced stressed concentration |
| 03/07/2012 | CN202157753U 具有凹凸唇面的金刚石钻头 Diamond drill bit having an uneven surface of the lip |
| 03/07/2012 | CN202157752U 具有石墨颗粒的金刚石钻头 Diamond drill bit having graphite particles |
| 03/07/2012 | CN202157751U 新型导向潜孔钻头 The new guide DTH drill |
| 03/07/2012 | CN202157750U 分段式液压扩底钻斗 Belled segmented hydraulic drill bucket |
| 03/07/2012 | CN202157749U 低扭矩牙轮钻头 Low torque cone bit |
| 03/07/2012 | CN102369336A Nhole drilling assembly |
| 03/07/2012 | CN101812972B Micro-coring PDC bit |
| 03/06/2012 | US8127869 Earth-boring tools, methods of making earth-boring tools and methods of drilling with earth-boring tools |
| 03/06/2012 | US8127868 Apparatus and methods for drilling a wellbore using casing |
| 03/06/2012 | US8127863 Drill bit having enhanced stabilization features and method of use thereof |
| 03/01/2012 | WO2012027668A1 Remotely-controlled downhole device and method for using same |
| 03/01/2012 | WO2012027267A2 Pcd cutter with fins |
| 03/01/2012 | WO2012027263A2 Functionally leached pcd cutter |
| 03/01/2012 | WO2012006281A3 Methods of forming inserts and earth-boring tools |
| 03/01/2012 | WO2011146760A4 Methods of forming at least a portion of earth-boring tools, and articles formed by such methods |
| 03/01/2012 | WO2011137494A9 Undercutting tool |
| 03/01/2012 | US20120048626 PCD Cutter With Fins |
| 03/01/2012 | US20120048625 Functionally Leached PCD Cutter |
| 03/01/2012 | US20120048624 Auger with Butterfly Flighting |
| 03/01/2012 | CA2809257A1 Remotely-controlled downhole device and method for using same |
| 02/29/2012 | EP2422038A2 Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of off center drilling |
| 02/29/2012 | CN202152639U 一种新型人造金刚石掘齿复合片 A new synthetic diamond tooth composite sheet |
| 02/29/2012 | CN202152638U 具有梯形胎体的金刚石钻头 Diamond drill has a trapezoidal carcass |
| 02/29/2012 | CN202152637U 一种地基基础施工长螺旋转头 A ground-based long spiral rotor construction |
| 02/29/2012 | CN102365416A Expandable multi-flute reamer with tapered pin |
| 02/29/2012 | CN102364032A Fixed cutting-tooth drilling bit |
| 02/29/2012 | CN102364031A Wheel type drill bit for breaking rock by rotary cutting |
| 02/29/2012 | CN102364030A Drill bit for breaking rock by rotary cutting |
| 02/29/2012 | CN101725324B Hot pressing diamond bit and manufacturing method thereof |
| 02/28/2012 | US8122980 Rotary drag bit with pointed cutting elements |
| 02/28/2012 | US8122979 Offset rock bit with pull back adapter |
| 02/28/2012 | CA2645212C Connection between a lateral and main pipe and method for making same remotely |
| 02/23/2012 | WO2012024149A2 Rotational drill bits and drilling apparatuses including the same |
| 02/23/2012 | WO2012023985A1 Ultra-hard matrix reamers and methods |
| 02/23/2012 | WO2012023052A2 High efficiency hydraulic drill bit |
| 02/23/2012 | WO2011160027A3 Oil operated rotary steerable system |
| 02/23/2012 | WO2011139903A4 Cutting elements, earth-boring tools, and methods of forming such cutting elements and tools |
| 02/23/2012 | WO2011132166A8 Polycrystalline superhard material |
| 02/23/2012 | WO2011094156A3 Cutter assembly for a raise boring reamer |
| 02/23/2012 | US20120043138 Rotational Drill Bits and Drilling Apparatuses Including the Same |
| 02/23/2012 | US20120043137 Rotary Drill Bit with Nozzles Designed to Enhance Hydraulic Performance and Drilling Fluid Efficiency |
| 02/23/2012 | US20120043135 Method of forming a bore |
| 02/23/2012 | US20120043087 High efficiency hydraulic drill bit |
| 02/23/2012 | DE102010034912A1 Drilling head has multiple radially arranged tools for radial and staged one- and multi-layered road cutting hard stones or minerals, where rotation axis of the tools lies in the right angle to cutting front |
| 02/23/2012 | CA2812075A1 Rotational drill bits and drilling apparatuses including the same |
| 02/22/2012 | EP2420645A2 Earth boring drill bits with casing component drill out capability, cutting elements for same, and methods of use |
| 02/22/2012 | EP2419601A1 Device for a downhole apparatus for machining of casings and also a method of depositing machined shavings |
| 02/22/2012 | EP2419597A2 Drilling systems for cleaning wellbores, bits for wellbore cleaning, methods of forming such bits, and methods of cleaning wellbores using such bits |
| 02/22/2012 | EP2419596A1 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 |
| 02/22/2012 | EP2419595A1 A drill bit with a hybrid cutter profile |
| 02/22/2012 | CN202148870U 一种天井钻机的三环滚刀装置 A three-ring hob unit patio rig |
| 02/22/2012 | CN202148869U 回旋钻机钻头 Maneuver drill rigs |
| 02/22/2012 | CN202148868U 用于牙轮的机械密封装置 Mechanical seal means for cutters |
| 02/21/2012 | US8118119 Impregnated rotary bit |
| 02/21/2012 | US8118116 Elongated percussive rock drilling element, a method for production thereof and a use thereof |
| 02/21/2012 | US8118099 Method and apparatus for forming and sealing a hole in a sidewall of a borehole |
| 02/17/2012 | CA2717623A1 High efficiency hydraulic drill bit |
| 02/16/2012 | WO2012021821A2 Cutting elements including nanoparticles in at least one portion thereof, earth-boring tools including such cutting elements, and ralted methods |
| 02/16/2012 | WO2012021605A1 Cutter rings and method of manufacture |
| 02/16/2012 | WO2012021604A1 Composite seal for a hydraulic hammer |
| 02/16/2012 | WO2012021302A2 Drilling system for enhanced coring and method |
| 02/16/2012 | WO2012021254A1 Cemented carbide compositions having cobalt-silicon alloy binder |
| 02/16/2012 | WO2012021069A1 Cutting tool integrated in a drillstring |
| 02/16/2012 | WO2011162987A3 Cutting elements for downhole cutting tools |
| 02/16/2012 | WO2011162984A3 Downhole cutting tool having center beveled mill blade |
| 02/16/2012 | US20120039673 Arrangement for a down-the-hole hammer drill for use in soil consolidation through jet grouting |
| 02/16/2012 | US20120037431 Cutting elements including nanoparticles in at least one portion thereof, earth-boring tools including such cutting elements, and related methods |
| 02/16/2012 | US20120037430 Polycrystalline diamond |
| 02/16/2012 | US20120037429 Polycrystalline diamond |
| 02/16/2012 | US20120037426 Downhole Tool |
| 02/16/2012 | US20120037422 Drilling tool, apparatus and method for underreaming and simultaneously monitoring and controlling wellbore diameter |
| 02/16/2012 | CA2816525A1 Drilling system for enhanced coring and method |
| 02/16/2012 | CA2808069A1 Cutting tool integrated in a drillstring |
| 02/16/2012 | CA2807369A1 Cutting elements including nanoparticles in at least one portion thereof, earth-boring tools including such cutting elements, and related methods |
| 02/15/2012 | EP2417323A1 Locking device for a drilling device |
| 02/15/2012 | EP2417322A2 Under-reamer |
| 02/15/2012 | EP2417321A1 Self positioning cutter and pocket |
| 02/15/2012 | EP2417277A2 Polycrystalline diamond |
| 02/15/2012 | EP2181238B1 Earth-boring tools having pockets for receiving cutting elements and methods for forming earth-boring tools including such pockets |
| 02/15/2012 | EP2132399B1 System, method, and apparatus for passive and active updrill features on roller cone drill bits |
| 02/15/2012 | CN202144725U 新型孕镶钻头 The new impregnated bits |
| 02/15/2012 | CN202144724U 具有新型胎体的pdc钻头 Pdc drill bit with a new carcass |
| 02/15/2012 | CN102356211A Backfilled polycrystalline diamond cutter with high thermal conductivity |
| 02/15/2012 | CN101705790B 一种地质勘探用表镶扩孔器及其制造方法 A geological exploration and manufacturing method inserts reamer Table |
| 02/14/2012 | US8113303 Modified cutters and a method of drilling with modified cutters |
| 02/14/2012 | US8113301 Jetted underreamer assembly |
| 02/14/2012 | US8112911 Method and device for mixing earth in situ for the formation of underground walls or diaphragms |
| 02/09/2012 | WO2012019141A2 Shaped cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods |
| 02/09/2012 | WO2012018261A1 Pump positioned at a drill bit |
| 02/09/2012 | WO2012016317A1 Drill bit alloy |
| 02/09/2012 | WO2011078833A3 Sealing (packing) ring |
| 02/09/2012 | US20120031677 Directional wellbore control by pilot hole guidance |
| 02/09/2012 | US20120031675 Abrasive Compact of Superhard Material and Chromium and Cutting Element Including Same |
| 02/09/2012 | US20120031674 Shaped cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods |
| 02/09/2012 | US20120031673 Lockable reamer |
| 02/09/2012 | US20120031672 Apparatus and Methods for Real Time Communication in Drill Strings |