| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 02/26/2013 | US8381845 Infiltrated carbide matrix bodies using metallic flakes |
| 02/26/2013 | US8381844 Earth-boring tools and components thereof and related methods |
| 02/26/2013 | US8381843 Well bore reamer |
| 02/26/2013 | US8381842 Apparatus for rotary mining |
| 02/26/2013 | US8381837 Downhole tool deactivation and re-activation |
| 02/26/2013 | CA2571595C A drill bit |
| 02/26/2013 | CA2556795C A drill bit |
| 02/26/2013 | CA2544093C Fluid jet drilling tool |
| 02/21/2013 | WO2012088102A4 Method and apparatus for milling a zero radius lateral window in casing |
| 02/21/2013 | US20130045055 Method for replacing a tunnel boring machine roller cutter, handling device and roller cutter suited to such a method |
| 02/21/2013 | US20130043078 Polycrystalline diamond compact including a carbonate-catalyzed polycrystalline diamond table and applications therefor |
| 02/21/2013 | US20130043077 Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk |
| 02/20/2013 | EP2558674A2 Coring apparatus and methods |
| 02/20/2013 | EP2558616A1 Hard face structure and body comprising same |
| 02/20/2013 | CN202745703U Novel drill for drill stems |
| 02/20/2013 | CN202745702U Ground drill bit |
| 02/20/2013 | CN202745701U Butterfly check valve of mining tricone bit |
| 02/20/2013 | CN202745700U High-speed high-temperature resistance roller bit suitable for being used in underground dynamic drill tool |
| 02/20/2013 | CN202745699U High-tightness roller cone bit |
| 02/20/2013 | CN202745698U Bearing dual-sealing system of roller bit |
| 02/20/2013 | CN202745697U Large-aperture underholing drill bit |
| 02/20/2013 | CN202745694U Rotary hot melting drill bit |
| 02/20/2013 | CN102937003A Guiding drill bit |
| 02/20/2013 | CN101824968B Novel brazed impregnated diamond bit |
| 02/19/2013 | CA2682316C Apparatus and methods of milling a restricted casing shoe |
| 02/19/2013 | CA2551939C High energy cutting elements and bits incorporating the same |
| 02/19/2013 | CA2487380C Method of avoiding the need for a scraper run in drill out operations and a downhole drilling motor assembly |
| 02/14/2013 | WO2013022733A2 Compositions, methods of coating wellbore tools with such compositions, and wellbore tools coated with such compositions |
| 02/14/2013 | WO2013021009A1 Steel for manufacturing carburized steel parts, carburized steel parts produced with said steel, and method for manufacturing same |
| 02/14/2013 | US20130039703 Multifunctional Screw Drill and Reaming Device |
| 02/14/2013 | CA2843360A1 Steel for manufacturing carburized steel parts, carburized steel parts produced with said steel, and method for manufacturing same |
| 02/13/2013 | EP2556205A2 Two-part drilling tool for the percussive or rotary percussive drilling of holes in soil material or rock material |
| 02/13/2013 | CN202731757U Sheet-shaped hard alloy for mining |
| 02/13/2013 | CN202731756U Diamond compact concave drill bit of |
| 02/13/2013 | CN202731755U Pressure balance and oil storage compensation device of roller bit |
| 02/13/2013 | CN202731754U Roller bit with bottom plane chip-removal function |
| 02/13/2013 | CN202731753U Roller bit provided with oblique inserting type ball retaining plug hole bit leg |
| 02/13/2013 | CN102933787A PDC sensing element fabrication process and tool |
| 02/13/2013 | CN102933786A Cutting elements, earth-boring tools, and methods of forming such cutting elements and tools |
| 02/13/2013 | CN102933785A Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods |
| 02/13/2013 | CN102933784A Polycrystalline diamond compacts, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts and earth-boring tools |
| 02/13/2013 | CN102927426A Bit lubricating device of rotary drill rig |
| 02/13/2013 | CN102926665A Variable-diameter drill bit |
| 02/13/2013 | CN102926664A Sleeve for drill bit connection |
| 02/13/2013 | CN102926663A Concentric sliding block simultaneous casing drilling tool, center drilling bit and centralizer |
| 02/13/2013 | CN102926654A Pile hole annular cutting system and pile hole annular cutting method |
| 02/12/2013 | US8371400 Downhole tool actuation |
| 02/12/2013 | US8371399 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 02/12/2013 | US8371398 Downhole fluid loss control apparatus |
| 02/12/2013 | US8371397 Feed mechanism for drilling systems |
| 02/12/2013 | CA2633493C Drill bits with bearing elements for reducing exposure of cutters |
| 02/12/2013 | CA2585564C Rock drill bit |
| 02/07/2013 | WO2013019421A2 Extruded powder metal compact |
| 02/07/2013 | WO2013019410A2 Method of making a powder metal compact |
| 02/07/2013 | WO2013017642A1 Super-hard construction and method for making same |
| 02/07/2013 | WO2013017641A1 Polycrystalline diamond construction and method for making same |
| 02/07/2013 | WO2013017117A2 Holder for tubular drilling tools having different diameters |
| 02/07/2013 | WO2011154721A3 Cutting assembly |
| 02/07/2013 | US20130032412 Drill bit assembly having aligned features |
| 02/07/2013 | US20130032406 Systems and Methods for Drilling Boreholes with Noncircular or Variable Cross-Sections |
| 02/07/2013 | US20130032398 Pulsed-Electric Drilling Systems and Methods with Reverse Circulation |
| 02/07/2013 | CA2843279A1 Receptacle for tubular drilling tools of various diameters |
| 02/07/2013 | CA2841132A1 Extruded powder metal compact |
| 02/06/2013 | EP2554782A2 System and methods for pulsed flow pulsed electric drilling |
| 02/06/2013 | EP2554781A2 Cooled-fluid systems and methods for pulsed-electric drilling |
| 02/06/2013 | EP2554780A2 Pulsed electric drilling systems and methods with reverse circulation |
| 02/06/2013 | EP2553206A2 Downhole tool |
| 02/06/2013 | CN202718627U Rock drill facilitating discharge of rock debris |
| 02/06/2013 | CN102918226A Methods of forming polycrystalline compacts |
| 02/06/2013 | CN102913253A Microtunnelling system and apparatus |
| 02/06/2013 | CN102913136A Helical-blade spiral-flow type flow-channel drill |
| 02/06/2013 | CN102913135A Polycrystalline diamond compound sheet and manufacturing process thereof |
| 02/06/2013 | CN102913134A Drilling tool |
| 02/06/2013 | CN101454537B Drill bit assembly with a probe |
| 02/05/2013 | US8365846 Polycrystalline diamond cutter with high thermal conductivity |
| 02/05/2013 | US8365845 High impact resistant tool |
| 02/05/2013 | US8365844 Diamond bonded construction with thermally stable region |
| 02/05/2013 | US8365843 Downhole tool actuation |
| 02/05/2013 | CA2542413C Nozzle unit and method for excavating a hole in an object |
| 01/31/2013 | WO2013016641A2 Methods of coating wellbore tools and components having such coatings |
| 01/31/2013 | WO2012160444A3 Heavy duty matrix bit |
| 01/31/2013 | WO2012121945A3 Methods of forming polycrystalline tables and polycrystalline elements and related structures |
| 01/31/2013 | WO2012118824A3 System for logging while running casing |
| 01/31/2013 | WO2012088115A4 Method and apparatus for drilling a zero-radius lateral |
| 01/31/2013 | WO2012010646A3 Superhard construction |
| 01/31/2013 | US20130028672 Articles having improved resistance to thermal cracking |
| 01/31/2013 | US20130025941 Methods of coating wellbore tools and components having such coatings |
| 01/31/2013 | DE102011108999A1 Aufnahme für rohrförmige Bohrwerkzeuge mit verschiedenen Durchmessern Recording for tubular drilling tools with different diameters |
| 01/30/2013 | CN202706930U Dual-pipe rotary jet grouting rig drill |
| 01/30/2013 | CN202706929U Pressurization speeding-up system in pit |
| 01/30/2013 | CN202706928U Integrally sintered diamond impregnated bit |
| 01/30/2013 | CN202706927U Improved structure for polycrystalline diamond compact (PDC) bit |
| 01/30/2013 | CN202706926U Piling drill of drilling pile machine |
| 01/30/2013 | CN202706925U Seven-cutter blade steel PDC (Polycrystalline Diamond Compact) drill bit |
| 01/30/2013 | CN202706924U Dual-cone single-thread auger |
| 01/30/2013 | CN202706923U Reinforced polycrystalline diamond compact (PDC) drill |
| 01/30/2013 | CN202706922U Controlled-position and double-impact drill bit for cast-in-place pile |
| 01/30/2013 | CN202706921U Drill bit shell |
| 01/30/2013 | CN202706920U Anti-pile foundation partial hole percussion bit |
| 01/30/2013 | CN202706919U Reaming drill tool used below building or rock stratum |