| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 07/20/2011 | EP2344715A2 Drill bit with continuously sharp edge cutting elements |
| 07/20/2011 | EP2344293A1 Rock drill bit |
| 07/20/2011 | EP2087196B1 Drill bit nozzle assembly, insert assembly including same and method of manufacturing or retrofitting a steel body bit for use with the insert assembly |
| 07/20/2011 | CN201902169U Poly ethylene (PE) plate drilling bit |
| 07/20/2011 | CN102132007A Cutting tool with water injection to cutting bit shank |
| 07/20/2011 | CN102128013A Diamond impregnated wire line coring geological bit and manufacturing method thereof |
| 07/20/2011 | CN102128009A Boron aluminum magnesium coating for earth-boring bit |
| 07/20/2011 | CN102128008A Polycrystalline diamond-hard alloy composite rock breaking button down-the-hole bit and manufacturing process thereof |
| 07/20/2011 | CN102128007A Directional drilling PDC bit |
| 07/19/2011 | US7980334 Diamond-bonded constructions with improved thermal and mechanical properties |
| 07/19/2011 | US7980333 Bar trimmers on disk bit |
| 07/19/2011 | CA2513869C Attachment means for drilling equipment |
| 07/14/2011 | WO2011084944A2 High-shear roller cone and pdc hybrid bit |
| 07/14/2011 | WO2011083501A1 Reamer and bit interaction model system and method |
| 07/14/2011 | WO2011083318A1 Methods for drilling, reaming and consolidating a subterranean formation |
| 07/14/2011 | WO2011082821A1 Rotary drill and method for the production thereof |
| 07/14/2011 | WO2011046859A3 Casing rotary steerable system for drilling |
| 07/14/2011 | WO2011041693A3 Cutting elements configured to generate shear lips during use in cutting, earth-boring tools including such cutting elements, and methods of forming and using such cutting elements and earth-boring tools |
| 07/14/2011 | WO2011041532A3 Earth-boring tools having expandable members and related methods |
| 07/14/2011 | WO2011041432A3 Earth-boring tools and components thereof including blockage resistant internal fluid passageways, and methods of forming such tools and components |
| 07/14/2011 | WO2011031696A3 Drill bits and methods of drilling curved boreholes |
| 07/14/2011 | WO2011019647A4 Methods of forming polycrystalline diamond cutting elements, cutting elements, and earth boring tools carrying cutting elements |
| 07/14/2011 | US20110171414 Sacrificial Catalyst Polycrystalline Diamond Element |
| 07/14/2011 | US20110168454 Novel hardmetal for use in oil and gas drilling applications |
| 07/14/2011 | US20110168453 Rock drill bit |
| 07/14/2011 | US20110168452 Tungsten Carbide Bit with Hardfaced Nose Area |
| 07/14/2011 | US20110168451 Boron Aluminum Magnesium Coating for Earth-Boring Bit |
| 07/14/2011 | US20110168450 Drill bit bearing contact pressure reduction |
| 07/14/2011 | US20110168448 Drilling out casing bits with other casing bits |
| 07/14/2011 | US20110168407 Bearing contact pressure reduction in well tools |
| 07/14/2011 | US20110167734 Thermally Conductive Sand Mould Shell for Manufacturing a Matrix Bit |
| 07/14/2011 | CA2785960A1 Reamer and bit interaction model system and method |
| 07/13/2011 | EP2342418A1 Insert for an attack tool, method for making same and tools incorporating same |
| 07/13/2011 | EP2342417A1 Drill bit with continuously sharp edge cutting elements |
| 07/13/2011 | EP2092154B1 Rotary drag bits having a pilot cutter configuration and method to pre-fracture subterranean formations therewith |
| 07/13/2011 | EP2038506B1 Cutting structure for earth-boring bit to reduce tracking |
| 07/13/2011 | CN102121351A Efficient tool bit with positioning hole, positioning groove or composite positioning hole |
| 07/12/2011 | US7975785 Drilling systems including fiber-containing diamond-impregnated cutting tools |
| 07/12/2011 | US7975784 Drill bit assembly for fluid-operated percussion drill tools |
| 07/12/2011 | US7975783 Reaming and stabilization tool and method for its use in a borehole |
| 07/12/2011 | US7975782 Earth bit having a pressure relief valve |
| 07/12/2011 | US7975779 Threaded cone retention system for roller cone bits |
| 07/07/2011 | WO2011081924A1 Polycrystalline diamond compacts, methods of making same, and applications therefor |
| 07/07/2011 | WO2011081775A1 Drill bits with axially-tapered waterways |
| 07/07/2011 | WO2011080009A1 Rock drilling tool for rotational percussive machining of concrete, rock, masonry and such materials |
| 07/07/2011 | WO2011079339A2 Drill bit for the drilling, in particular percussion drilling or rotary percussion drilling, of holes in soil material or rock material |
| 07/07/2011 | WO2011044147A3 Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of directional and off center drilling |
| 07/07/2011 | WO2011041521A3 Earth-boring tools having expandable cutting structures and methods of using such earth-boring tools |
| 07/07/2011 | WO2011028193A3 Drill bit |
| 07/07/2011 | WO2011017411A4 Drill bit with an adjustable steering device |
| 07/07/2011 | US20110162893 High-shear roller cone and pdc hybrid bit |
| 07/07/2011 | US20110162892 Sonic drill bits and sonic drilling systems |
| 07/07/2011 | DE112009002204T5 Neuartiges Hartmetall für eine Verwendung bei Erdöl- und Gasbohrungen New type of carbide for use in oil and gas wells |
| 07/07/2011 | DE102009034776B4 Verfahren zur Herstellung einer Kernbohrung in einer Gebäudewand und eine Vorrichtung zur Durchführung des Verfahrens A method for producing a core hole in a building wall and a device for carrying out the method |
| 07/07/2011 | CA2784465A1 Drill bits with axially-tapered waterways |
| 07/06/2011 | EP2340449A2 Bit based formation evaluation using a gamma ray sensor |
| 07/06/2011 | EP2340347A2 Apparatus and system to allow tool passage ahead of a bit |
| 07/06/2011 | EP2340346A2 Drill bit with adjustable axial pad for controlling torsional fluctuations |
| 07/06/2011 | CN201891388U 8.5'' five-blade carcase PDC (Polycrystalline Diamond Compact) drill bit |
| 07/06/2011 | CN201891387U 6'' six-blade carcase PDC (Polycrystalline Diamond Compact) drill bit |
| 07/06/2011 | CN201891386U 6'' six-blade and long-gauge carcase PDC (Polycrystalline Diamond Compact) drill bit |
| 07/06/2011 | CN201891385U 8.5'' six-blade and long-gauge carcase PDC (Polycrystalline Diamond Compact) drill bit |
| 07/06/2011 | CN201891384U Special gear wheel mechanism for rock reamer |
| 07/06/2011 | CN201891383U Drill bit |
| 07/06/2011 | CN201891382U Device for acquiring pressured parameters of drill bit during forward movement of drilling machine |
| 07/05/2011 | US7971663 Polycrystalline diamond compact including thermally-stable polycrystalline diamond body held in barrier receptacle and applications therefor |
| 07/05/2011 | US7971660 Rock bit with a thermal insulating seal ring positioned in the seal gland |
| 07/05/2011 | US7971645 Four mill bottom hole assembly |
| 07/05/2011 | CA2673317C Locking device for a drilling device |
| 07/05/2011 | CA2498202C Method and composition for reducing wear in a cutting head of a tunnel boring machine |
| 06/30/2011 | WO2011078833A2 Sealing (packing) ring |
| 06/30/2011 | WO2011076616A1 Method for replacing a tunnel boring machine disk cutter, handling device and disk cutter suited to such a method |
| 06/30/2011 | WO2011041685A3 Milling tool for establishing openings in wellbore obstructions |
| 06/30/2011 | WO2011041562A3 Remotely controlled apparatus for downhole applications and methods of operation |
| 06/30/2011 | WO2011041553A3 Tools for use in drilling or enlarging well bores having expandable structures and methods of making and using such tools |
| 06/30/2011 | WO2011041174A3 Earth boring tools having expandable members |
| 06/30/2011 | WO2011037948A3 Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
| 06/30/2011 | WO2011031863A3 Drill bit with rate of penetration sensor |
| 06/30/2011 | WO2011022474A3 Method of forming polystalline diamond elements, polycrystalline diamond elements, and earth boring tools carrying such polycrystalline diamond elements |
| 06/30/2011 | WO2011017376A4 Superabrasive cutters with grooves on the cutting face and drill bits and drilling tools so equipped |
| 06/30/2011 | US20110155473 Stabilizing system and methods for a drill bit |
| 06/30/2011 | US20110155472 Earth-boring tools having differing cutting elements on a blade and related methods |
| 06/30/2011 | US20110155465 Retractable Underreamer |
| 06/30/2011 | CA2785364A1 Method for replacing a tunnel boring machine disk cutter, handling device and disk cutter suited to such a method |
| 06/29/2011 | EP2339109A2 Earth drilling tool and method |
| 06/29/2011 | EP2337920A2 Downhole vibration monitoring for reaming tools |
| 06/29/2011 | CN201883949U Diamond bit with upper and lower nozzle segments |
| 06/29/2011 | CN201883948U V-shaped tool bit diamond bit |
| 06/29/2011 | CN201883947U Novel diamond electrical drilling bit |
| 06/29/2011 | CN201883946U Shoulder circular arc PDC (polycrystalline diamond compact) bit |
| 06/29/2011 | CN201883945U Thin-walled diamond drill bit |
| 06/29/2011 | CN201883944U Drill bit |
| 06/29/2011 | CN201883943U Spiral impact drill bit and engineering machinery comprising same |
| 06/29/2011 | CN201883942U Double-loop-type anti-falling device of air hammer drill bit |
| 06/29/2011 | CN201883935U Pore-forming drill tool for advance support of tunneling works |
| 06/29/2011 | CN101492998B Radial shrink-proof single-cone rotary drill bit |
| 06/28/2011 | US7968184 Erosion resistant surface and method of making erosion resistant surfaces |
| 06/28/2011 | US7967083 Sensor for determining a position of a jack element |
| 06/28/2011 | CA2524106C Dual-edge working surfaces for polycrystalline diamond cutting elements |
| 06/28/2011 | CA2412249C Leak remedy through sealants in local reservoirs |