| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 12/25/2013 | CN103470186A Drill bit for coal-mine gas extraction hole |
| 12/25/2013 | CN103469789A Karst-area underwater bridge pier drilled pile construction method |
| 12/25/2013 | CN102383735B Ultrahigh-pressure drillbit runner system for underground booster and construction method thereof |
| 12/25/2013 | CN102287217B Hydraulic seam cutting porous slag discharge method |
| 12/25/2013 | CN102094578B Drilling mechanism |
| 12/25/2013 | CN101675205B High productivity core drilling system |
| 12/24/2013 | US8613331 On demand actuation system |
| 12/19/2013 | WO2013188798A1 Drilling device and method |
| 12/19/2013 | WO2013188688A2 Pcd cutters with improved strength and thermal stability |
| 12/19/2013 | WO2013188206A1 Drill bit with hydraulically adjustable axial pad for controlling torsional fluctuations |
| 12/19/2013 | WO2013186386A1 Superhard constructions & methods of making same |
| 12/19/2013 | WO2013186385A1 Multi-layered polycrystalline diamond structure |
| 12/19/2013 | WO2013186382A1 Superhard constructions & methods of making same |
| 12/19/2013 | WO2013064433A3 Tip for a pick tool, method of making same and pick tool comprising same |
| 12/19/2013 | US20130337248 High density polycrystalline superhard material |
| 12/19/2013 | US20130333954 Pcd cutters with improved strength and thermal stability |
| 12/19/2013 | US20130333953 Cutting elements retained within sleeves |
| 12/19/2013 | US20130333952 Drilling device and process |
| 12/19/2013 | US20130333951 Cutting inserts, cones, earth boring tools having grading features, and related methods |
| 12/19/2013 | US20130333950 Heat flow control for molding downhole equipment |
| 12/19/2013 | CA2875197A1 Drill bit with hydraulically adjustable axial pad for controlling torsional fluctuations |
| 12/18/2013 | EP2673454A2 Infiltrated diamond wear resistant bodies and tools |
| 12/18/2013 | EP2673453A2 Tools for use in subterranean boreholes having expandable members and related methods |
| 12/18/2013 | EP2673452A2 Integrated reaming and measurement system and related methods of use |
| 12/18/2013 | EP2673451A2 System and method for leg retention on hybrid bits |
| 12/18/2013 | EP2673449A2 Helical drilling apparatus, systems, and methods |
| 12/18/2013 | CN203347696U Tungsten carbide ball tooth for shield tunneling machine |
| 12/18/2013 | CN203347695U Polycrystalline diamond composite sheet drilling bit |
| 12/18/2013 | CN203347694U Tungsten carbide ball tooth for oilfield exploitation |
| 12/18/2013 | CN203347693U PDC (polycrystalline diamond compact) drill bit with gauge teeth |
| 12/18/2013 | CN203347692U Steel body type polycrystalline diamond compact (PDC) drill |
| 12/18/2013 | CN203347691U Square-head forged piece |
| 12/18/2013 | CN203347690U Square-head drill forged piece |
| 12/18/2013 | CN103459753A PCD cutter with fins |
| 12/18/2013 | CN103459752A Methods of forming polycrystalline compacts, cutting elements and earth-boring tools |
| 12/18/2013 | CN103459751A Infiltrated diamond wear resistant bodies and tools |
| 12/18/2013 | CN103459750A Polycrystalline compacts including metallic alloy compositions in interstitial spaces between grains of hard material, cutting elements and earth-boring tools including such polycrystalline compacts, and related methods |
| 12/18/2013 | CN103459749A Apparatus for controlling drill bit depth of cut using thermally expandable materials |
| 12/18/2013 | CN103452484A Double-mixing drilling bit of cement-soil mixing pile machine |
| 12/18/2013 | CN103452483A Cone bit with strengthened cutting gauge protection teeth |
| 12/18/2013 | CN103452473A Method for performing small-diameter deep well construction by using full-face high-counterweight drill bit device |
| 12/17/2013 | US8607900 Downhole tool engaging a tubing string between a drill bit and tubular for reaming a wellbore |
| 12/17/2013 | US8607899 Rock bit and cutter teeth geometries |
| 12/17/2013 | CA2702658C High thermal conductivity hardfacing for drilling applications |
| 12/12/2013 | WO2013184644A1 Face stabilized downhole cutting tool |
| 12/12/2013 | WO2013184260A1 Cutting element, cutter tool and method of cutting within a borehole |
| 12/12/2013 | US20130330139 Impregnated diamond structure, method of making same, and applications for use of an impregnated diamond structure |
| 12/12/2013 | US20130327577 Cutting Bit With Hard Cutting Tip Centering and Braze Joint Control Feature |
| 12/12/2013 | US20130327576 Percussive drill bit provided with an improved chuck assembly |
| 12/12/2013 | US20130327575 Earth removal member with features for facilitating drill-through |
| 12/12/2013 | US20130326964 Drilling or abrading tool having a working surface with an array of blind apertures plugged with super-abrasive material |
| 12/12/2013 | DE102013105348A1 Bohrer mit zentrierung der harten bohrspitze und hartlötverbindungs-steuermerkmal Drill with centering drill tip and the hard-tax hartlötverbindungs feature |
| 12/12/2013 | CA2875116A1 Cutting element, cutter tool and method of cutting within a borehole |
| 12/11/2013 | CN203334966U Layered die block of diamond bit and bit body of diamond bit |
| 12/11/2013 | CN203334965U Drill bit suitable for forming holes in earth surface with loose soil texture |
| 12/11/2013 | CN203334964U Lubricating device of roller bit |
| 12/11/2013 | CN203334963U Laser drill bit and matched well drilling device |
| 12/11/2013 | CN203334962U Oil field combined type drill bit capable of preventing well from being blocked and being lifted up |
| 12/11/2013 | CN203334961U Drill bit for glacier drilling |
| 12/11/2013 | CN203334954U Drilling device with laser drill bit |
| 12/11/2013 | CN103443389A Tools for use in subterranean boreholes having expandable members and related methods |
| 12/11/2013 | CN103443388A System and method for leg retention on hybrid bits |
| 12/11/2013 | CN103443387A Fluid drilling head with sliding gauging ring |
| 12/11/2013 | CN103443386A Methods of forming polycrystalline tables and polycrystalline elements and related structures |
| 12/11/2013 | CN103437713A Self-sharpening type ring tooth impregnated diamond drill bit |
| 12/11/2013 | CN103437712A Three-axis agitator drilling bit suitable for penetrating through round gravel bed soil |
| 12/11/2013 | CN103437705A Directional and quick hole-forming device for mining-coal bed gas extraction multi-branch holes |
| 12/11/2013 | CN101952540B Drill bit |
| 12/10/2013 | US8602133 Tool with welded cemented metal carbide inserts welded to steel and/or cemented metal carbide |
| 12/10/2013 | US8602132 Superabrasive materials and methods of manufacture |
| 12/10/2013 | US8602131 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 |
| 12/10/2013 | US8602130 Superabrasive elements having indicia and related apparatus and methods |
| 12/10/2013 | US8602129 Matrix body fixed cutter bits |
| 12/10/2013 | CA2736188C Rock drill bit |
| 12/05/2013 | WO2013180702A1 Rotary drill bit and method for designing a rotary drill bit for directional and horizontal drilling |
| 12/05/2013 | WO2013180695A1 Manufacture of well tools with matrix materials |
| 12/05/2013 | US20130319774 Drill bit and cutting head for drill bit |
| 12/05/2013 | US20130319773 Fluid drilling head nozzle design |
| 12/05/2013 | US20130319770 Drill bit seal and method of using same |
| 12/05/2013 | US20130319693 Assembly and technique for completing a multilateral well |
| 12/05/2013 | CA2875110A1 Manufacture of well tools with matrix materials |
| 12/05/2013 | CA2875021A1 Rotary drill bit and method for designing a rotary drill bit for directional and horizontal drilling |
| 12/04/2013 | EP2669464A1 A clean-out tool for cleaning out a well bore and a method for cleaning out a well bore using such a clean-out tool |
| 12/04/2013 | EP2669033A1 Cutting head for a drill bit. |
| 12/04/2013 | EP2668362A2 Non-magnetic drill string member with non-magnetic hardfacing and method of making the same |
| 12/04/2013 | CN203321332U Annular drill bit |
| 12/04/2013 | CN203321331U Water-burst-proof drill |
| 12/04/2013 | CN203321330U PDC drill bit for oil drilling |
| 12/04/2013 | CN203321329U Drilling tool with three-blade drill |
| 12/04/2013 | CN203321328U Reamer bit for construction long screw pile machine |
| 12/04/2013 | CN203321327U Ice layer air rapid drilling reverse circulation continuous coring drill bit |
| 12/04/2013 | CN203321326U PDC drill steel core |
| 12/04/2013 | CN203321312U Gear down-the-hole mixing drilling tool and gear down-the-hole drilling machine comprising gear down-the-hole mixing drilling tool |
| 12/04/2013 | CN203321311U Gear down-the-hole mixing drilling tool and gear down-the-hole drilling machine comprising gear down-the-hole mixing drilling tool |
| 12/04/2013 | CN103429838A Fluid drilling head nozzle design |
| 12/04/2013 | CN103422815A Roller-cone bit using full-floating shaft sleeve capable of storing oil and sealing bearing during ultrahigh-speed rolling |
| 12/04/2013 | CN103422810A Soil boring machine |
| 12/04/2013 | CN102373884B Borehole-enlarging and bottom-enlarging drill |
| 12/04/2013 | CN102261224B Dragging-type screen hole breast wall drill bit |
| 12/03/2013 | US8596387 Polycrystalline diamond compact including a non-uniformly leached polycrystalline diamond table and applications therefor |