| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 06/17/2008 | US7387175 Window reaming and coring apparatus and method of use |
| 06/17/2008 | CA2384305C Abrasive jet drilling assembly |
| 06/12/2008 | WO2008070052A2 Expandable reamers for earth boring applications |
| 06/12/2008 | WO2008070051A2 Restriction element trap for use with and actuation element of a downhole apparatus and method of use |
| 06/12/2008 | WO2008070038A1 Expandable reamers for earth-boring applications and methods of using the same |
| 06/12/2008 | WO2008069863A2 Earth boring bit |
| 06/12/2008 | WO2008042328B1 Earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials, and methods for forming such bits |
| 06/12/2008 | US20080135308 Button bit |
| 06/12/2008 | US20080135307 Impregnated Bit With Changeable Hydraulic Nozzles |
| 06/12/2008 | US20080135306 Drill Bit With A Fixed Cutting Structure |
| 06/12/2008 | US20080135305 Displacement members and methods of using such displacement members to form bit bodies of earth-boring rotary drill bits |
| 06/12/2008 | US20080135304 Methods of attaching a shank to a body of an earth-boring drilling tool, and tools formed by such methods |
| 06/12/2008 | US20080135298 Secondary retainer for a downhole hammer bit |
| 06/12/2008 | US20080135297 Rotary drag bits having a pilot cutter configuraton and method to pre-fracture subterranean formations therewith |
| 06/12/2008 | CA2671444A1 Restriction element trap for use with and actuation element of a downhole apparatus and method of use |
| 06/11/2008 | EP1929117A1 Methods and systems for designing and/or selecting drilling equipment with desired drill bit steerability |
| 06/11/2008 | EP1694939B1 Rock drill bit |
| 06/11/2008 | CN101198762A Earth-boring bits |
| 06/11/2008 | CN101196115A Construction method and device for high pressure underground gas storing well |
| 06/11/2008 | CN100393979C Hydraulic underreamer and sections for use therein |
| 06/11/2008 | CN100393905C Vacuum heat treatment method for hard alloy for drilling |
| 06/11/2008 | CN100393899C Production of immersing alloy for petroleum drilling bit |
| 06/10/2008 | US7384223 Anchoring drill bit, system and method of anchoring |
| 06/10/2008 | US7383901 Releasable auger tooth |
| 06/10/2008 | US7383900 Drill bit and system for drilling a borehole |
| 06/06/2008 | CA2570160A1 Drill bit |
| 06/05/2008 | WO2008066895A2 Discrete element modeling of rock destruction under high pressure conditions |
| 06/05/2008 | WO2008066889A1 Detritus flow management features for drag bit cutters and bits so equipped |
| 06/05/2008 | WO2008066445A1 A button bit |
| 06/05/2008 | US20080129104 Impact Tool |
| 06/05/2008 | US20080128951 ethylene vinyl acetate internal base member, thermoplastic polyurethane inner frame member and external base member; improved durability and dynamic flexibility; components subjected to an isocyanate solution for added durability |
| 06/05/2008 | US20080128176 dispersed through aluminum alloy matrix; infiltration, powder compaction, and consolidation; for drilling subterranean formations |
| 06/05/2008 | US20080128175 Expandable reamers for earth boring applications |
| 06/05/2008 | US20080128140 Methods and apparatus for wellbore construction and completion |
| 06/05/2008 | CA2670181A1 Discrete element modeling of rock destruction under high pressure conditions |
| 06/05/2008 | CA2670179A1 Detritus flow management features for drag bit cutters and bits so equipped |
| 06/04/2008 | EP1926883A1 Earth boring drill bits with casing component drill out capability, cutting elements for same, and methods of use |
| 06/04/2008 | EP1926882A1 A one-piece drill bit for single-pass anchor bolting and single pass drilling apparatus |
| 06/04/2008 | CN201068740Y Conical helical rock drill head |
| 06/04/2008 | CN201068739Y Hydraulic coal mining dedicated drill head |
| 06/04/2008 | CN201068738Y High speed rock-destroying drill head structure |
| 06/04/2008 | CN101191169A Carbon nano tube-diamond-hard alloy composite material and its preparation method and application |
| 06/03/2008 | CA2438449C Blockless reamer |
| 05/29/2008 | WO2008062369A2 Material containing diamond and an intermetallic compound |
| 05/29/2008 | WO2008062094A1 Drilling apparatus |
| 05/29/2008 | US20080125981 Drill bit performance analysis tool |
| 05/29/2008 | US20080121437 Hard material drilling head |
| 05/29/2008 | US20080121436 Downhole seal element formed from a nanocomposite material |
| 05/29/2008 | US20080121435 Single cone rock bit having inserts adapted to maintain hole gage during drilling |
| 05/29/2008 | US20080121434 Converging diverging nozzle for earth-boring drill bits, method of substantially bifurcating a drilling fluid flowing therethrough, and drill bits so equipped |
| 05/29/2008 | US20080121433 Detritus flow management features for drag bit cutters and bits so equipped |
| 05/28/2008 | CN101189408A Method for manufacturing a cutting pick |
| 05/27/2008 | US7377341 Thermally stable ultra-hard material compact construction |
| 05/27/2008 | US7377340 Drill bit cutting elements with selectively positioned wear resistant surface |
| 05/27/2008 | US7377338 Downhole percussion tool |
| 05/27/2008 | US7377332 Multiple inserts of different geometry in a single row of a bit |
| 05/22/2008 | WO2008060561A1 Drill bit nozzle assembly, insert assembly including same and method of manufacturing or retrofitting a steel body bit for use with the insert assembly |
| 05/22/2008 | WO2008060212A1 A drilling tool, a self -drilling rock bolt, a drill bit, an ancoring device for a self -drilling rock bolt, a shaft for a drilling tool and an end coupling for a drilling tool |
| 05/22/2008 | WO2008027484B1 Methods for applying wear-resistant material to exterior surfaces of earth-boring tools and resulting structures |
| 05/22/2008 | US20080115978 Shank Assembly with a Tensioned Element |
| 05/22/2008 | US20080115977 Impact Tool |
| 05/22/2008 | US20080115974 Steerable drilling system |
| 05/22/2008 | US20080115973 Underreamer And Method Of Use |
| 05/22/2008 | CA2665345A1 A drilling tool, a self-drilling rock bolt, a drill bit, an anchoring device for a self-drilling rock bolt, a shaft for a drilling tool and an end coupling for a drilling tool |
| 05/21/2008 | EP1923535A1 Downhole check valve comprising a burst disk |
| 05/21/2008 | EP1923534A1 Steerable bit assembly and methods |
| 05/21/2008 | EP1923158A2 Drill tool with hard material insert |
| 05/21/2008 | EP1730386A4 Rotating systems associated with drill pipe |
| 05/21/2008 | CN201062491Y Rock-drilling bore bit |
| 05/21/2008 | CN201062490Y Anti-collapse highly effective combined drill |
| 05/21/2008 | CN201062357Y Reaming bit for end oversized grout pile |
| 05/21/2008 | CN101182756A Bearing sealing structure for rotary drill bit |
| 05/20/2008 | US7373998 Cutting element with improved cutter to blade transition |
| 05/20/2008 | US7373997 Layered hardfacing, durable hardfacing for drill bits |
| 05/20/2008 | US7373994 Self cleaning coring bit |
| 05/20/2008 | CA2334547C Ceramic and process for the continuous sintering thereof |
| 05/15/2008 | WO2008057489A1 Earth-boring rotary drill bits including bit bodies comprising reinforced titanium or titanium-based alloy matrix materials, and methods for forming such bits |
| 05/15/2008 | WO2008055349A1 Reverse nozzle drill bit |
| 05/15/2008 | US20080110680 Drill bit nozzle assembly, insert assembly including same and method of manufacturing or retrofitting a steel body bit for use with the insert assembly |
| 05/15/2008 | US20080110679 Drill with a hard material drilling head |
| 05/15/2008 | US20080110678 Expandable reamer apparatus for enlarging boreholes while drilling |
| 05/15/2008 | US20080110673 Apparatus and methods for drilling a wellbore using casing |
| 05/14/2008 | EP1920132A1 Underreamer having radially extendable members |
| 05/13/2008 | US7370712 Under reamer |
| 05/13/2008 | US7370711 Rolling cone drill bit having non-circumferentially arranged cutter elements |
| 05/13/2008 | US7370702 Single mill casing window cutting tool and method |
| 05/08/2008 | WO2008016868A8 Downhole abrading tool having a taggant injection assembly for indicating excessive wear |
| 05/08/2008 | WO2008006010A3 Cutters for downhole cutting devices |
| 05/08/2008 | US20080105467 Drill bit reservior with controllable relief pressure |
| 05/08/2008 | US20080105465 Expandable reamer for subterranean boreholes and methods of use |
| 05/08/2008 | US20080105464 Moveable blades and bearing pads |
| 05/06/2008 | US7368013 Superabrasive particle synthesis with controlled placement of crystalline seeds |
| 05/06/2008 | US7367413 Cutting elements of gage row and first inner row of a drill bit |
| 05/06/2008 | US7367412 Collapsible rock head |
| 05/02/2008 | WO2008049292A1 Extruding and expanding drill equipment and the drilling method thereof |
| 05/02/2008 | CA2663519A1 Articles having improved resistance to thermal cracking |
| 05/01/2008 | US20080100125 Abrasive cutter |
| 05/01/2008 | US20080099252 Two-cone drill bit with enhanced stability |
| 05/01/2008 | US20080099251 High impact resistant tool |
| 05/01/2008 | US20080099250 Superhard Insert with an Interface |