| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 08/17/2011 | CN102155176A Waterproof rock soil core drilling tool |
| 08/17/2011 | CN102155167A Polycrystalline diamond-hard alloy composite rock-breaking button |
| 08/17/2011 | CN102155166A Radial spinning drill |
| 08/17/2011 | CN102155165A Impact drilling tool |
| 08/17/2011 | CN102155164A Thrust auxiliary reamer bit |
| 08/17/2011 | CN102155150A Crushing mechanism with gas inlet pipe |
| 08/17/2011 | CN101657603B Drilling head for reborinq a stuck valve |
| 08/16/2011 | US7997659 Rotary cutter for tunnel boring machine |
| 08/16/2011 | US7997359 Abrasive wear-resistant hardfacing materials, drill bits and drilling tools including abrasive wear-resistant hardfacing materials |
| 08/16/2011 | US7997358 Bonding of cutters in diamond drill bits |
| 08/16/2011 | US7997356 Apparatus for rotary mining |
| 08/16/2011 | US7997354 Expandable reamers for earth-boring applications and methods of using the same |
| 08/16/2011 | US7997346 Percussion drilling assembly with annular locking member |
| 08/11/2011 | WO2011097575A2 Shaped cutting elements on drill bits and other earth-boring tools, and methods of forming same |
| 08/11/2011 | WO2011046744A3 Hybrid drill bit and method of using tsp or mosaic cutters on a hybrid bit |
| 08/11/2011 | WO2011022474A4 Method of forming polystalline diamond elements, polycrystalline diamond elements, and earth boring tools carrying such polycrystalline diamond elements |
| 08/11/2011 | US20110192653 Cutting Element and Method of Orienting |
| 08/11/2011 | US20110192652 Composite cutter substrate to mitigate residual stress |
| 08/11/2011 | US20110192651 Shaped cutting elements on drill bits and other earth-boring tools, and methods of forming same |
| 08/11/2011 | CA2788816A1 Shaped cutting elements on drill bits and other earth-boring tools, and methods of forming same |
| 08/11/2011 | CA2788804A1 Cutting element and method of orienting |
| 08/10/2011 | EP2354436A2 Downhole tools having features for reducing balling, methods of forming such tools, and methods of repairing such tools |
| 08/10/2011 | EP2354435A2 Composite metallic elastomeric sealing components for roller cone drill bits |
| 08/10/2011 | EP2352895A2 Pilot reamer with composite framework |
| 08/10/2011 | CN201924834U 旋流钻井钻头 Swirl drilling bits |
| 08/10/2011 | CN201924833U 石油勘探钻井用钻头 Oil exploration drilling with drill |
| 08/10/2011 | CN201924832U 一种单金属密封牙轮钻头 A single-metal sealing cone bit |
| 08/10/2011 | CN201924831U 桥梁钻孔灌注桩取石钻头 Bored stone bridge drill |
| 08/10/2011 | CN1684801B Molten braze coated superabrasive particles and associated methods |
| 08/10/2011 | CN102149896A Earth-boring bit parts including hybrid cemented carbides and methods of making the same |
| 08/10/2011 | CN102149895A Steerable piloted drill bit, drill system, and method of drilling curved boreholes |
| 08/10/2011 | CN102146771A Hot pressed and diamond impregnated drill tooth applicable to strong abrasive hard formation |
| 08/10/2011 | CN101509352B Drill with flexible nozzle |
| 08/09/2011 | US7992658 Pilot reamer with composite framework |
| 08/09/2011 | US7992657 Earth bit having a wear ring |
| 08/09/2011 | CA2504518C Tool insert |
| 08/04/2011 | WO2011094429A2 Shock reduction tool for a downhole electronics package |
| 08/04/2011 | WO2011094359A2 Drilling assembly with underreaming bit and method of use |
| 08/04/2011 | WO2011094156A2 Cutter assembly for a raise boring reamer |
| 08/04/2011 | WO2011059685A3 Backup cutting elements on non concentric earth boring tools and related methods |
| 08/04/2011 | WO2011041174A4 Earth boring tools having expandable members |
| 08/04/2011 | WO2011031912A4 Polycrystalline compacts having material disposed in interstitial spaces therein, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts |
| 08/04/2011 | WO2011031863A4 Drill bit with rate of penetration sensor |
| 08/04/2011 | WO2011031747A3 Single piezo-actuator rotary-hammering (sparh) drill |
| 08/04/2011 | US20110187058 Composite Metallic Elastomeric Sealing Components for Roller Cone Drill Bits |
| 08/04/2011 | US20110186354 Methods of attaching a shank to a body of an earth-boring tool including a load bearing joint and tools formed by such methods |
| 08/04/2011 | CA2787067A1 Shock reduction tool for a downhole electronics package |
| 08/03/2011 | EP1841943B1 Roller reamer |
| 08/03/2011 | CN201915845U 钻机切削钻头 Cutting drill rig |
| 08/03/2011 | CN201915844U 牙轮钻头 Cone bit |
| 08/03/2011 | CN201915843U Radial polycrystalline diamond bearing for spiral drilling rig transmission shaft |
| 08/03/2011 | CN201915842U 锚杆钻头 Anchor drill |
| 08/03/2011 | CN201915841U 一种设有导向用的易返式尾翼的钎头 One kind of has a guide with easy back-fin-brazing head |
| 08/03/2011 | CN201915840U 气动式牙轮钻机轴承润滑装置 Pneumatic rotary drill bearing lubrication device |
| 08/03/2011 | CN201915839U 打捞旋挖钻机钻具 Salvage rotary drilling rig drilling |
| 08/03/2011 | CN102140888A Excavating drilling machine |
| 08/03/2011 | CA2730409A1 Composite metallic elastomeric sealing components for roller cone drill bits |
| 08/02/2011 | US7987931 Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element |
| 08/02/2011 | CA2634436C Methods, systems, and apparatus for production of hydrocarbons from a subterranean formation |
| 08/02/2011 | CA2630917C Earth-boring rotary drill bits and methods of forming earth-boring rotary drill bits |
| 07/28/2011 | WO2011090618A1 Earth-boring tools having differing cutting elements on a blade and related methods |
| 07/28/2011 | WO2011089739A1 Cemented carbide tool and method of fixing super-hard tip |
| 07/28/2011 | WO2011089125A2 A superhard insert and an earth boring tool comprising same |
| 07/28/2011 | WO2011062925A3 Down-the-hole drill hammer having a reverse exhaust system and segmented chuck assembly |
| 07/28/2011 | WO2011057303A3 Drill bit with recessed center |
| 07/28/2011 | WO2011043986A3 Hole opener with hybrid reaming section |
| 07/28/2011 | WO2011017642A4 Anti-tracking spear-points for earth-boring drill bits |
| 07/28/2011 | US20110180331 Rock bit |
| 07/28/2011 | US20110180330 Drilling assembly with underreaming bit and method of use |
| 07/28/2011 | US20110180325 Sensor on a Formation Engaging Member of a Drill Bit |
| 07/28/2011 | US20110180324 Sensor on a Formation Engaging Member of a Drill Bit |
| 07/28/2011 | CA2833616A1 Polycrystalline diamond compacts, method of fabricating same, and various applications |
| 07/28/2011 | CA2787541A1 Pick tool and method for making same |
| 07/27/2011 | EP2347287A2 Bit based formation evaluation and drill bit and drill string analysis using an acoustic sensor |
| 07/27/2011 | EP2347086A2 Encapsulated diamond particles, materials and impregnated diamond earth boring bits including such particles, and methods of forming such particles, materials, and bits |
| 07/27/2011 | EP2347085A2 Methods and apparatus for mechanical and thermal drilling |
| 07/27/2011 | CN201908577U Anti-blocking type diamond bit |
| 07/27/2011 | CN201908576U Gauge protection joint for oil field well drilling |
| 07/27/2011 | CN201908575U Drill bit with V-shaped powder discharging groove |
| 07/27/2011 | CN201908574U Bit pressure type reamer |
| 07/27/2011 | CN201908573U Monocycle bearing seal of roller bit |
| 07/27/2011 | CN201908566U Electric auger boring type bailing tool for oil gas borehole |
| 07/27/2011 | CN102137981A Drilling tool and method for widening and simultaneously monitoring the diameter of wells and the properties of the fluid |
| 07/27/2011 | CN102134969A Rock bit |
| 07/27/2011 | CN102134850A Soil-sucking hole-forming bit of diamond drill |
| 07/26/2011 | US7984773 Sonic drill bit for core sampling |
| 07/26/2011 | US7984763 Full bore lined wellbores |
| 07/26/2011 | CA2524189C Downhole tool having radially extendable members |
| 07/21/2011 | WO2011049864A3 Cutting structures for casing component drillout and earth-boring drill bits including same |
| 07/21/2011 | WO2011043988A3 Hole opener with hybrid reaming section |
| 07/21/2011 | WO2011043987A3 Hole opener with hybrid reaming section |
| 07/21/2011 | WO2011022421A4 Cutting elements having different interstitial materials in multi-layer diamond tables, earth-boring tools including such cutting elements, and methods of forming same |
| 07/21/2011 | WO2011017451A4 Earth-boring tools and components thereof including erosion-resistant extensions, and methods of forming such tools and components |
| 07/21/2011 | US20110174550 Process for manufacturing a part comprising a block of dense material constituted of hard particles and of binder phase having a gradient of properties, and resulting part |
| 07/21/2011 | US20110174549 Superhard insert and an earth boring tool comprising same |
| 07/21/2011 | US20110174548 Downhole tools having features for reducing balling, methods of forming such tools, and methods of repairing such tools |
| 07/21/2011 | US20110174546 Core drill bit |
| 07/21/2011 | US20110173896 Expandable earth boring apparatus using impregnated and matrix materials for enlarging a borehole |
| 07/21/2011 | CA2842758A1 Drill bit bearing contact pressure reduction |
| 07/21/2011 | CA2787038A1 Drill bit bearing contact pressure reduction |