Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 10 - Drill bits
Patents for E21B 10 - Drill bits (19,464)
06/2012
06/07/2012US20120138298 Methods and apparatus for wellbore construction and completion
06/07/2012CA2819454A1 Cutter with diamond sensors for acquiring information relating to an earth-boring drilling tool
06/07/2012CA2819098A1 Mold assemblies including a mold insertable in a container
06/07/2012CA2819031A1 Improvements in heat flow control for molding downhole equipment
06/06/2012EP2459499A1 Polycrystalline diamond compact
06/06/2012CN202266194U 一种扩孔钻头 One kind of reaming drill
06/06/2012CN202266193U Bidirectional reaming tool
06/05/2012US8195438 Method for designing cutting structure for roller cone drill bits
06/05/2012US8193455 Graphene electronics fabrication
06/05/2012US8191658 Cutting elements having different interstitial materials in multi-layer diamond tables, earth-boring tools including such cutting elements, and methods of forming same
06/05/2012US8191657 Rotary drag bits for cutting casing and drilling subterranean formations
06/05/2012US8191656 Auto adaptable cutting structure
06/05/2012US8191655 Apparatus and method for reaming a wellbore during the installation of a tubular string
06/05/2012US8191651 Sensor on a formation engaging member of a drill bit
06/05/2012US8191635 Hole opener with hybrid reaming section
05/2012
05/31/2012WO2012071515A2 Polycrystalline diamond constructions having optimized material composition
05/31/2012WO2012048017A3 Diamond impregnated cutting structures, earth-boring drill bits and other tools including diamond impregnated cutting structures, and related methods
05/31/2012US20120132471 Rolling cutter placement on pdc bits
05/31/2012US20120132469 Reamer
05/31/2012US20120132468 Cutter with diamond sensors for acquiring information relating to an earth-boring drilling tool
05/31/2012CA2817972A1 Sacrificial catalyst polycrystalline diamond element
05/30/2012EP2458131A2 Method for manufacturing the insertion end of a drill
05/30/2012EP2456946A2 Supported pcd and manufacturing method using binderless wc-substrate
05/30/2012EP2456945A2 Diamond-enhanced cutting elements, earth-boring tools employing diamond-enhanced cutting elements, and methods of making diamond-enhanced cutting elements
05/30/2012CN202249790U Anchor rod drill
05/30/2012CN202249789U Ultrahigh pressure drill bit system for underground supercharger
05/30/2012CN202249788U Coring bit
05/30/2012CN202249787U Geological exploration sharp-tooth mudstone coring drill bit
05/30/2012CN202249786U PDC (polycrystalline diamond compact) drilling bit with composite cutting teeth
05/30/2012CN202249785U Internally convex four-wing plug bit
05/30/2012CN202249784U Drill bit structure
05/30/2012CN202249783U Drilling bit with novel crown angle structure
05/30/2012CN202249782U Stone-crushing drill bit
05/30/2012CN202249781U Impactor drill bit with check valve
05/30/2012CN202249780U Mining drill bit
05/30/2012CN202249779U Drill bit
05/30/2012CN202249778U Improved structure of drill bit
05/30/2012CN202249777U Drill bit structure
05/30/2012CN202249776U Hob hole enlarger
05/30/2012CN202249775U Bearing metal sealing structure
05/30/2012CN202249774U Roller bit
05/30/2012CN202249773U Roller bit for composite O-shaped sealing ring
05/30/2012CN202249772U Novel roller bit sealing structure
05/30/2012CN202249771U Wheel type drill for breaking rock in rotary cutting manner
05/30/2012CN202249770U Drill for breaking rock by applying rotary cutting mode
05/30/2012CN202249769U Drill bit for petroleum exploration
05/30/2012CN202249768U Improved structure of mining drill bit
05/30/2012CN202249767U Mining drill bit
05/30/2012CN202249766U Drill bit of spiral drilling bucket
05/30/2012CN202249762U Multi-spray-nozzle seam cutting drill bit
05/30/2012CN202247863U Rhinestone pile driver
05/30/2012CN102482920A 用于钻井装置的锁紧装置 Drilling device for locking device
05/30/2012CN102482919A Polycrystalline diamond cutting elements with engineered porosity and method for manufacturing such cutting elements
05/30/2012CN102482918A 钻头 Drill
05/30/2012CN102482862A 用于地面啮合操作的耐磨性增强的耐磨部件 For enhanced wear resistance of the ground engaging operation of the wear part
05/30/2012CN102477847A 高效锯齿状钻头 Efficient jagged bits
05/30/2012CN102477846A Soil-layer broaching bit
05/30/2012CN102477845A 一种用于超短半径水平井的钻井方法 A short radius horizontal well drilling method used
05/30/2012CN102477750A 填埋场防渗层hdpe膜漏洞修补方法和装置 Landfill hdpe membrane impermeable layer method and apparatus for bug fixes
05/29/2012US8186460 Hard material insert and core bit
05/29/2012CA2738548A1 Reamer
05/29/2012CA2675070C Rotary drag bit
05/29/2012CA2619526C Manufacture of thermally stable cutting elements
05/24/2012WO2012044888A3 Wear resistant material at the shirttail edge and leading edge of a rotary cone drill bit
05/24/2012US20120130685 Techniques for modeling/simulating, designing, optimizing and displaying hybrid drill bits
05/24/2012US20120128444 Anchor Module for Mining and Tunneling
05/24/2012US20120125696 Polycrystalline Diamond Constructions Having Optimized Material Composition
05/24/2012US20120125695 Earth-boring tools including replaceable cutting structures and related methods
05/24/2012US20120125694 Matrix Powder System and Composite Materials and Articles Made Therefrom
05/24/2012US20120125691 Modular drilling system
05/24/2012US20120125687 Hard Rock Rotary Drill Bit and Method of Drilling Using Crowned Cutter Elements
05/24/2012DE19740277B4 Bohrwerkzeug Drilling tool
05/24/2012DE102011117232A1 Matrixpulversystem und Verbundmaterialien daraus hergestellte Artikel System matrix powder and composite materials produced therefrom,
05/23/2012EP2454441A2 Stabilizer subs for use with expandable reamer apparatus, expandable reamer apparatus including stabilizer subs and related methods
05/23/2012CN202227989U Combined drilling tool
05/23/2012CN202227988U Rolling-sliding compound bearing
05/23/2012CN202227987U Automatic switching water jet slotting combined type drill bit
05/23/2012CN202227986U Drill bucket for long spiral drilling machine
05/23/2012CN102472082A 具有冲击表面轮廓的孕镶金刚石钻头 With the impact surface profile impregnated diamond drill
05/23/2012CN102465670A 一种pdc钻头用pdc片 One kind pdc pdc drill sheet
05/23/2012CN102465669A 一种钻井用旋流喷嘴 One kind of drilling swozzle
05/23/2012CN102465665A 一种坚固耐用的挖孔机 Rugged, digging machine
05/23/2012CN102031784B Slope protection pile pouring and cable bolting construction method for deep foundation pit
05/23/2012CN101967826B Vibrating bar-inserting long spiral air-cooled drilling rock-socketed pile forming method and equipment
05/23/2012CN101812971B Combined bit
05/23/2012CN101005919B Indexable cutting inserts and methods for producing the same
05/22/2012US8185366 Methods for modeling, displaying, designing, and optimizing fixed cutter bits
05/22/2012US8185365 Radial force distributions in rock bits
05/22/2012US8182778 Boron carbide and method for making same
05/22/2012US8181723 Bits and cutting structures
05/22/2012CA2675270C Rotary drag bit and methods therefor
05/22/2012CA2505412C Well reamer
05/18/2012WO2012064957A2 Localized features and manufacturing methods for inserts of rock bits
05/18/2012WO2012064948A2 System and method of configuring drilling tools utilizing a critical depth of cut control curve
05/18/2012WO2012064855A2 Underground drilling apparatus
05/18/2012WO2012064737A2 Tools for use in subterranean boreholes having expandable members and related methods
05/18/2012WO2012064500A1 Casing spears and related systems and methods
05/18/2012WO2012064399A1 Polycrystalline compacts including nanoparticulate inclusions, cutting elements and earth-boring tools including such compacts, and methods of forming same
05/18/2012CA2817693A1 System and method of configuring drilling tools utilizing a critical depth of cut control curve
05/18/2012CA2817118A1 Tools for use in subterranean boreholes having expandable members and related methods
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