E21B 10 - Drill bits - Patents Sitemap

Patents for E21B 10 - Drill bits (19,464)
12/2011
12/22/2011	WO2011159432A1 Fracturing method to reduce tortuosity
12/22/2011	WO2011158190A2 Superhard cutter
12/22/2011	WO2011139760A3 Methods of forming polycrystalline compacts
12/22/2011	WO2011139668A3 Polycrystalline diamond compacts, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts and earth-boring tools
12/22/2011	WO2011130148A3 Coring apparatus and methods
12/22/2011	WO2011129958A3 Reverse circulation hammer with modular bit
12/22/2011	US20110308865 Downhole cutting tool, cutting elements and method
12/22/2011	US20110308864 Impregnated drill bits and methods of manufacturing the same
12/22/2011	US20110308861 Expandable reamers for subterranean drilling and related methods
12/22/2011	CA2802674A1 Fracturing method to reduce tortuosity
12/21/2011	EP2396495A2 Methods, systems, and devices for manipulating cutting elements for earth boring drill bits and tools
12/21/2011	EP2396494A1 Backfilled polycrystalline diamond cutter with high thermal conductivity
12/21/2011	EP2396493A1 Rotary drill bits with optimized fluid flow characteristics
12/21/2011	EP2176499B1 Cutting element for subterranean drilling
12/21/2011	CN202081830U 矿用钻头 Mine drill
12/21/2011	CN202081829U 一种聚晶金刚石复合片切削齿 One kind of polycrystalline diamond compact cutters
12/21/2011	CN202081828U 石油钻头保径专用聚晶金刚石复合片 Oil drill gage special polycrystalline diamond compact
12/21/2011	CN202081827U 锚杆钻头保径专用聚晶金刚石复合片 Anchor drill gage special polycrystalline diamond compact
12/21/2011	CN202081826U 一种塔式钻头 One kind of drill tower
12/21/2011	CN202081825U 避免堵塞冷却喷水口的凿岩机钻头 To avoid clogging the cooling water inlet of the rock drill drill
12/21/2011	CN202081824U 一种液压平行滑移扩张式随钻扩眼器 A hydraulic drilling parallel slip expandable reamer
12/21/2011	CN202081823U 具有提升力的矿用三牙轮钻头 Mine has a lift with three-cone drill
12/21/2011	CN102292514A 顶板钻头尖、顶板钻头尖本体以及用于顶板钻头尖的硬质切削镶片 Roof drill bits, drill bits roof rigid body and cutting inserts for roof drill bit tip
12/21/2011	CN102287217A 水力割缝多孔排渣法 Hydraulic Cutting porous slag France
12/21/2011	CN102287140A 一种强制卸土钻斗 One kind of forced to unload earth drill bucket
12/21/2011	CN102287139A 牙轮钻头金属浮动密封装置 Metal cone bit floating seal
12/21/2011	CN102287138A Dynamic pressure circulating lubrication roller bit
12/21/2011	CN101131091B 井下煤层压风螺旋钻进机具及使用该机具钻孔的方法 Underground coal seam pressure air screw drilling equipment and the use of the method of drilling equipment
12/20/2011	US8082134 Techniques for modeling/simulating, designing optimizing, and displaying hybrid drill bits
12/20/2011	US8081802 Method for determining permeability of rock formation using computer tomograpic images thereof
12/20/2011	US8080071 Polycrystalline diamond compact, methods of fabricating same, and applications therefor
12/20/2011	US8079431 Drill bit having rotational cutting elements and method of drilling
12/20/2011	US8079430 Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of off-center drilling
12/20/2011	US8079429 Methods of forming earth-boring tools using geometric compensation and tools formed by such methods
12/20/2011	US8079428 Hardfacing materials including PCD particles, welding rods and earth-boring tools including such materials, and methods of forming and using same
12/20/2011	US8079427 Methods of forming earth-boring tools having features for affecting cuttings flow
12/15/2011	WO2011154721A2 Cutting assembly
12/15/2011	WO2011119408A3 Foot valve assembly for a down hole drill
12/15/2011	US20110303467 Polycrystalline diamond abrasive elements
12/15/2011	US20110303466 Superabrasive cutting elements with cutting edge geometry having enhanced durability and cutting efficiency and drill bits so equipped
12/15/2011	US20110303465 Impregnated drilling tools including elongated structures
12/15/2011	US20110303464 Fluid Actuated Impact Tool with Solid Piston-Standard Bit Arrangement and Water Seal
12/15/2011	CA2801833A1 Cutting assembly
12/14/2011	EP2394016A1 Casing bit and casing reamer designs
12/14/2011	CN202073499U Pdc钻、扩单翼组合钻头 Pdc drilling, expanding wing combination drill
12/14/2011	CN202073498U Chambering type pressure-reduction acceleration drill bit
12/14/2011	CN202073497U 三维旋转水射流煤层扩孔系统 Three-dimensional rotating water jet coal reaming system
12/14/2011	CN202073087U 金钢钻吸土成孔钻头 A diamond drill holes into the soil suction
12/14/2011	CN102282334A 用于潜孔钻的钻头 DTH drill bit for drilling
12/14/2011	CN102281974A 形成多晶金刚石切割元件的方法，所形成的切割元件和所装备的钻头 The method of forming a cutting element polycrystalline diamond cutting elements, formed and are equipped with drills
12/14/2011	CN102278069A 牙轮钻头 Cone bit
12/14/2011	CN102278062A 金刚石复合齿 Diamond composite teeth
12/14/2011	CN101128644B 带有固定切削结构的钻头 With fixed cutter drill structure
12/13/2011	US8074750 Earth-boring tools comprising silicon carbide composite materials, and methods of forming same
12/13/2011	US8074749 Earth removal member with features for facilitating drill-through
12/13/2011	US8074748 Thermally-stable polycrystalline diamond element and compact, and applications therefor such as drill bits
12/13/2011	US8074741 Methods, systems, and bottom hole assemblies including reamer with varying effective back rake
12/13/2011	CA2516211C Cutting element
12/08/2011	WO2011153481A1 Rotational drill bits and drilling apparatuses including the same
12/08/2011	WO2011153439A1 Rolling cutter assembled directly to the bit pockets
12/08/2011	WO2011058532A3 Super-hard cutter inserts and tools
12/08/2011	US20110297454 Rolling cutter assembled directly to the bit pockets
12/08/2011	US20110297453 Polycrystalline diamond compacts and related drill bits
12/08/2011	US20110297452 Detritus flow management features for drag bit cutters and bits so equipped
12/08/2011	US20110297451 Rotational Drill Bits and Drilling Apparatuses Including the Same
12/08/2011	US20110297450 Ultra hard/hard composite materials
12/08/2011	US20110297449 Tool with welded cemented metal carbide inserts welded to steel and/or cemented metal carbide
12/08/2011	US20110297448 Rock bit having a mechanical seal with superior thermal performance
12/08/2011	US20110297443 Expandable reamer apparatus and related methods
12/08/2011	CA2837842A1 Rotational drill bits and drilling apparatuses including the same
12/07/2011	EP2391794A2 Earth boring tools and bodies of such tools including nozzle recesses, and methods of forming same
12/07/2011	EP2391470A2 Earth-boring particle-matrix rotary drill bit and method of making the same
12/07/2011	CN202064837U 迷宫式隔液钻头及迷宫式隔液取心钻进工具 Maze and labyrinth drill fluid barrier across the liquid core drilling tools
12/07/2011	CN202064836U 一种钻头 A drill
12/07/2011	CN202064835U Combined drilling tool used for pre-drilling lateral loading test
12/07/2011	CN202064834U 非开挖铺管钻机用重力平衡式回扩器 Trenchless pipe rig balanced by gravity back to the expansion device
12/07/2011	CN202064833U 水平定向钻进铺管钻机用方向可控式导向钻头 Horizontal directional drilling rig pipe laying ceremony with steerable drill guide
12/07/2011	CN102272407A 取芯钻头 Coring drill
12/07/2011	CN102268966A 一种破碎硬岩钻头及对硬岩进行破碎的方法 One kind of crushing hard rock drill and method for hard rock crushing
12/07/2011	CN102268869A 旋行钻制作地下连续墙的方法及其装备 Rotary drilling production line method of underground continuous wall of their equipment
12/07/2011	CN101787479B 网状结构硬质合金及其制备方法 Reticular Carbide and its preparation method
12/07/2011	CA2736432A1 Rock bit having a mechanical seal with superior thermal performance
12/06/2011	US8071173 Methods of fabricating a polycrystalline diamond compact including a pre-sintered polycrystalline diamond table having a thermally-stable region
12/06/2011	US8069937 Polycrystalline diamond compact including a cemented tungsten carbide substrate that is substantially free of tungsten carbide grains exhibiting abnormal grain growth and applications therefor
12/06/2011	US8069936 Encapsulated diamond particles, materials and impregnated diamond earth-boring bits including such particles, and methods of forming such particles, materials, and bits
12/06/2011	US8069935 Superabrasive element, and superabrasive compact and drill bit including same
12/06/2011	US8069934 Drill bits for drilling wells
12/01/2011	WO2011146955A2 Drill bit
12/01/2011	WO2011089125A3 Superhard cutting insert for earth boring tool
12/01/2011	US20110290566 Earth-boring bits and other parts including cemented carbide
12/01/2011	US20110290565 Hybrid Bit with Variable Exposure
11/2011
11/30/2011	EP2389494A1 Milling cap for a polycrystalline diamond compact cutter
11/30/2011	EP2389263A1 Abrasive inserts
11/30/2011	EP1861577B1 Rotary drill bit shank, rotary drill bits so equipped, and methods of manufacture
11/30/2011	CN202055784U 地质勘探取芯钻头 Geological exploration core drill
11/30/2011	CN202055767U 一种用于复杂地层钻孔取样的钻具 A complex stratigraphic drill for drilling and sampling
11/30/2011	CN202055758U 钻头喷嘴防堵器 Attempts to prevent the drill bit nozzle device
11/30/2011	CN202055757U 一种层界面为弧形的聚晶金刚石复合片 A laminated curved interface for polycrystalline diamond compact
11/30/2011	CN202055756U 中搅新型扩大头结构 Stir in the new expanded header structure
11/30/2011	CN202055755U 防卡钻风枪钻头 Anti-sticking air gun drill

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