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)
12/2014
12/11/2014US20140360784 Through Casing Coring
12/10/2014CN204002599U 钻具和旋挖钻机 Drilling and rotary drilling rig
12/10/2014CN204002580U 一种具有双喷嘴的喷嘴座 A double nozzle having a nozzle seat
12/10/2014CN204002579U 桥梁基础大直径桩钻孔用焊齿钻头 Large diameter bored pile foundation of bridge welded teeth with drill
12/10/2014CN204002578U 一种强力抽吸式反循环取心钻头 A powerful suction reverse circulation drill coring
12/10/2014CN204002577U 金刚石异径接手 Reducing over diamond
12/10/2014CN204002576U 一种三翼钻头 A three-wing drill
12/10/2014CN204002575U 碎地造孔器 To pore is broken
12/10/2014CN204002574U 一种防卡pdc钻头 An anti-card pdc drill
12/10/2014CN204002573U 桥梁基础大直径桩钻孔用球齿钻头 Bridge foundation drilling large diameter pile with the ball tooth drill
12/10/2014CN204002572U 用于桥梁基础大直径桩钻孔的焊齿平底钻头 Welding flat tooth drill large diameter piles for bridge foundation drilling
12/10/2014CN204002571U 用于桥梁基础大直径桩钻孔的球齿平底钻头 Ball flat tooth drill large diameter piles for bridge foundation drilling
12/10/2014CN204002570U 用于桥梁基础大直径桩钻孔的焊齿钻头 Welding tooth drill large diameter piles for bridge foundation drilling
12/10/2014CN204002569U 用于桥梁基础大直径桩钻孔的球齿钻头 Ball tooth drill large diameter piles for bridge foundation drilling
12/10/2014CN204002568U 一种地质勘探钻头 One kind of geological exploration drill
12/10/2014CN204002567U 三刀翼粒子冲击钻头 Mito wing particle impact drill
12/10/2014CN204002566U 牙轮钻头 Cone bit
12/10/2014CN204002565U 牙轮钻头的轴承金属密封结构 Bearing metal seal structure cone bit
12/10/2014CN204002564U 适于复杂硬质矿岩地貌的牙轮钻头 Hard rock mining is suitable for complex topography cone bit
12/10/2014CN204002563U 可自动清理石块的打井钻头 Can automatically clean up the stone drill wells
12/10/2014CN204002536U 三件式钻具 Three-piece drill
12/10/2014CN104204397A 在钻井的同时进行压裂的系统和方法 While drilling system and method for fracturing
12/10/2014CN104196461A 一种具有斜排粉槽的柱齿钎头 Having an oblique pink tank column Button Bits
12/10/2014CN104196460A 一种用于天然气岩芯钻探的回转组合式pdc钻头 Core drilling for natural gas modular rotary drill bit pdc
12/10/2014CN104196459A 一种金刚石钻头 A line of diamond drill
12/10/2014CN104196458A 尖齿pdc钻头 Tine pdc drill
12/10/2014CN104196457A 一种挖穴机弧形双刀钻头 One kind of curved knives, drill digging machine
12/10/2014CN104196456A 一种具有交变切削轨迹的pdc钻头工具 Pdc drill tool having a cutting path of alternating
12/10/2014CN104196449A 钻井法凿井垂直钻进钻具 Shaft Drilling vertical drilling drill
12/10/2014CN102828695B 反循环清渣扩孔钻头 Reverse circulation drill reaming slag
12/10/2014CN102773472B 一种聚晶金刚石钻头胎体粉 One kind of polycrystalline diamond bit matrix powder
12/10/2014CN101956528B 高转速耐高压耐冲击弹性滚动轴承牙轮钻头 High speed high pressure resistance, impact elasticity Rolling cone bit
12/09/2014US8905163 Rotary drill bit with improved steerability and reduced wear
12/09/2014US8905162 High efficiency hydraulic drill bit
12/09/2014US8905158 Downhole tool
12/04/2014US20140353047 Method of making polycrystalline diamond material
12/04/2014US20140353046 Hybrid bit with roller cones near the bit axis
12/04/2014US20140353040 Methods of fabricating cutting elements for earth-boring tools and methods of selectively removing a portion of a cutting element of an earth-boring tool
12/04/2014US20140353032 Expandable apparatus and related methods
12/02/2014US8899358 Interface design of TSP shear cutters
12/02/2014US8899357 Multilevel force balanced downhole drilling tools and methods
12/02/2014US8899356 Drill bits, cutting elements for drill bits, and drilling apparatuses including the same
12/02/2014US8899355 PDC drill bit with flute design for better bit cleaning
12/02/2014US8899354 Drill bit with a flow interrupter
12/02/2014US8899353 Post hole digger with integrated safety features
11/2014
11/27/2014US20140345953 A drill bit for a percussive hammer and shank therefore
11/27/2014US20140345952 Method and apparatus for reaming well bore surfaces nearer the center of drift
11/27/2014US20140345951 Rolling cutter
11/25/2014US8893829 Polycrystalline compacts including nanoparticulate inclusions, cutting elements and earth-boring tools including such compacts, and methods of forming same
11/25/2014US8893828 High strength infiltrated matrix body using fine grain dispersions
11/25/2014US8893826 Optimized reaming system based upon weight on tool
11/25/2014US8893822 Apparatus and methods for real time communication between drill bit and drilling assembly
11/25/2014US8893778 System and method of fracturing while drilling
11/20/2014US20140339882 Axially stable retention mechanism for picks and cutting elements
11/20/2014US20140338985 Polycrystalline diamond compact including a substrate having a raised interfacial surface bonded to a polycrystalline diamond table, and applications therefor
11/20/2014US20140338984 Hole opener bearing arrangement
11/20/2014US20140338982 Drill Bit with Angulary Offset Centerlines
11/20/2014US20140338981 Tools for use in subterranean boreholes having expandable members and related methods
11/20/2014US20140338979 Reamer With Replaceable Rolling Cutters
11/20/2014US20140338976 Extendable cutting tools for use in a wellbore
11/18/2014US8888432 Tubular delivery apparatus and system
11/18/2014US8887839 Drill bit for use in drilling subterranean formations
11/18/2014US8887838 Cutting element and method of orienting
11/18/2014US8887837 Cutting structures for fixed cutter drill bit and other downhole cutting tools
11/18/2014US8887836 Drilling systems for cleaning wellbores, bits for wellbore cleaning, methods of forming such bits, and methods of cleaning wellbores using such bits
11/18/2014US8887833 Reamer assembly
11/18/2014US8887832 Apparatus and methods for corrosion protection of downhole tools
11/13/2014US20140332287 Polycrystalline compacts including interbonded nanoparticles, cutting elements and earth-boring tools including such polycrystalline compacts, and related methods
11/13/2014US20140332286 Diamond Cutting Elements for Drill Bits Seeded With HCP Crystalline Material
11/13/2014US20140332285 Formation-engaging element placement on earth-boring tools and related methods
11/13/2014US20140332284 Rotational Drill Bits and Drilling Apparatuses Including the Same
11/13/2014US20140332283 Earth-boring tools including movable cutting elements and related methods
11/13/2014US20140332278 Extended reach drilling
11/13/2014US20140332274 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
11/13/2014US20140332273 Cutting element, tool and method of cutting within a borehole
11/13/2014US20140332271 Earth-boring tools including movable formation-engaging structures and related methods
11/13/2014US20140332270 Method and apparatus for operating a downhole tool
11/11/2014US8882869 Methods of forming polycrystalline elements and structures formed by such methods
11/11/2014US8881851 Thermally-stable polycrystalline diamond materials and compacts
11/11/2014US8881850 Cutter pocket design
11/11/2014US8881849 Rolling cutter bit design
11/11/2014US8881848 Fixed cutter drill bit with rotating cutter disc
11/11/2014US8881845 Expandable window milling bit and methods of milling a window in casing
11/11/2014US8881835 Manipulator tool and tool catcher useful with wellbore reverse circulation
11/11/2014US8881833 Remotely controlled apparatus for downhole applications and methods of operation
11/11/2014US8881791 Earth-boring tools and methods of forming earth-boring tools
11/11/2014US8881361 Methods of repairing a rotary drill bit
11/06/2014US20140328641 Drill and production method for a drill
11/06/2014US20140326516 Rolling cutter with side retention
11/06/2014US20140326515 Rotating cutting elements for pdc bits
11/06/2014US20140326514 Drill Bit with a Dynamic Metal Seal
11/04/2014US8875814 Element containing thermally stable polycrystalline diamond material and methods and assemblies for formation thereof
11/04/2014US8875813 Atomic layer deposition nanocoatings on cutting tool powder materials
11/04/2014US8875812 Polycrystalline diamond cutting element and method of using same
11/04/2014US8875810 Hole enlargement drilling device and methods for using same
10/2014
10/30/2014US20140318873 Rotatable cutting elements and related earth-boring tools and methods
10/30/2014US20140318872 Two prong rotary drill bit with cutting insert having edge preparation
10/30/2014US20140318871 Rotary drill bit with cutting insert having edge preparation
10/30/2014US20140318870 Rotary drill bit with cutting insert for engaging earth strata
10/30/2014US20140318760 System and Method for the Access of Subterranean Deposits
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