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)
06/2014
06/04/2014CN103835653A Self-propelled rock debris grinding material straight-spinning jet mixing flow drill bit
06/04/2014CN102587838B Manufacturing method of hot-press polymerized coarse-grain diamond drill bit
06/04/2014CN102292514B Roof drill bit, roof drill bit body and hard cutting insert for roof drill bit
06/03/2014US8741006 Ultra-hard constructions with enhanced second phase
06/03/2014US8740048 Thermally stable polycrystalline ultra-hard constructions
06/03/2014US8739904 Superabrasive cutters with grooves on the cutting face, and drill bits and drilling tools so equipped
06/03/2014US8739903 Adjustable drill bit
06/03/2014US8739901 Wellbore percussion adapter and tubular connection
06/03/2014US8739899 Small core generation and analysis at-bit as LWD tool
05/2014
05/30/2014WO2014081997A2 Apparatus and method for retaining inserts of a rolling cone drill bit
05/30/2014WO2014081654A1 Fixed cutter drill bit cutter elements including hard cutting tables made from cvd synthetic diamonds
05/30/2014WO2014081503A1 Drill string stabilizer recovery improvement features
05/30/2014WO2014080372A1 Rolling cone earth boring bits and its manufacturing method
05/30/2014WO2013167954A3 A downhole downhole assembly, tool and method
05/30/2014WO2013150078A3 Symmetrical bit for directional drilling tool
05/30/2014WO2013114258A3 Cutter for shaft and/or tunnel boring
05/30/2014WO2013033187A3 Mechanical attachment of thermally stable diamond to a substrate
05/29/2014US20140144713 Eruption control in thermally stable pcd products
05/29/2014US20140144712 Eruption control in thermally stable pcd products by the addition of transition metal carbide
05/29/2014US20140144711 Custom Shaped Blank
05/29/2014US20140144710 Drill Assembly
05/29/2014US20140144709 Apparatus and method for retaining inserts of a rolling cone drill bit
05/28/2014EP2734700A1 Rock bit having a labyrinth seal/bearing protection structure
05/28/2014EP2734484A1 Brazed coated diamond-containing materials
05/28/2014EP2734325A1 Polycrystalline diamond compact including a carbonate-catalysed polycrystalline diamond table and applications therefor
05/28/2014CN203614044U 一种聚晶金刚石复合片 One kind of polycrystalline diamond compact
05/28/2014CN203614043U 一种金刚石钻头 One kind of diamond drill
05/28/2014CN203614042U 一种短体pdc钻头 A short-body pdc drill
05/28/2014CN203614041U 带有缓冲功能的压力平衡储油补偿装置的牙轮钻头 Cone oil pressure balance compensation device with buffering function drill
05/28/2014CN203614040U 一种取心钻头 One kind coring drill
05/28/2014CN203614039U 等离子钻井钻头 Plasma drilling bits
05/28/2014CN203614038U 一种双眼睑式井下用激光头 A dual eyelid downhole with a laser head
05/28/2014CN103827436A 多晶金刚石结构 Polycrystalline diamond structure
05/28/2014CN103827435A 用于固定齿钻头的切削结构和其它井下切削工具 Cutting structure for fixed gear and other downhole drill cutting tool
05/28/2014CN103821457A 一种可拆卸金刚石复合片 A disengageable PDC
05/28/2014CN103821456A 填坑式烧结金刚石钻头及其制造方法 Fill pit sintered diamond drill and its manufacturing method
05/28/2014CN103821455A 一种可纠正导井偏斜的竖井掘进机钻头结构 Well one kind corrects skewed guide shaft boring machine drills structure
05/28/2014CN102425376B 一种旋挖钻机用的钻具及包括该钻具的旋挖钻机 One kind of rotary drilling rig with drilling and include the drilling of rotary drilling rig
05/27/2014US8734550 Polycrystalline diamond compact
05/27/2014US8733475 Drill bit with enhanced hydraulics and erosion-shield cutting teeth
05/27/2014CA2795478C A drill bit assembly having aligned features
05/27/2014CA2742767C Extendable cutting tools for use in a wellbore
05/27/2014CA2687739C A wired smart reamer
05/22/2014WO2014078683A1 Method of using spring loaded blocker to retain rolling cutters or mechanical lock cutters
05/22/2014WO2014078660A1 Push reamer
05/22/2014WO2014078649A1 Method of making carbonate pcd and sintering carbonate pcd on carbide substrate
05/22/2014WO2014078342A1 Drill bit simulation and optimization
05/22/2014WO2014078316A1 Underreamer for increasing a wellbore diameter
05/22/2014WO2014078225A2 Hybrid rolling cone drill bits and methods for manufacturing same
05/22/2014WO2013101925A3 Downhole cutting tool
05/22/2014US20140140782 Drill bit
05/22/2014US20140138162 Diamond Mining Core Drill Bit And Methods Of Making Thereof
05/22/2014US20140138161 Hybrid Rolling Cone Drill Bits and Methods for Manufacturing Same
05/21/2014EP2733305A2 Rotational drill bits and drilling apparatuses including the same
05/21/2014EP2732122A2 Downhole cutting tool and method
05/21/2014CN203603900U 高压水钻割一体机 High pressure diamond cutting machine
05/21/2014CN203603770U 岩芯钻钻头结构 Core drill structure
05/21/2014CN203603769U 筒钻钻头的改进结构 Improve the structure of the barrel drill
05/21/2014CN203603768U 一种流道表面具有凹坑的抗泥包pdc钻头 Anti-balling pdc drill a channel surface pits
05/21/2014CN203603767U 一种流道表面具有凸包的抗泥包pdc钻头 Anti-balling pdc drill a channel surface with a convex hull of
05/21/2014CN203603766U 一种具有凹坑流道表面的抗泥包pdc钻头 Having a channel surface pits anti-balling pdc drill
05/21/2014CN103813886A 用于破碎锤的工具、破碎锤及其用途 Tools for crushing hammer, hammer and uses
05/21/2014CN103813873A 超硬构造及其制造方法 Superhard structure and its manufacturing method
05/21/2014CN103813872A 多晶金刚石结构及其制备方法 Polycrystalline diamond structure and preparation method
05/21/2014CN103806844A 深部硬岩钻进用钎焊镍基孕镶金刚石钻头及其制造方法 Deep hard rock drilling nickel based brazing impregnated diamond drill bits and its manufacturing method
05/21/2014CN103806843A 具有良好性能的煤田勘探钻头的制造方法 Manufacturing method has good performance of coal exploration drill
05/21/2014CN103806842A 具有良好性能的地质勘探钻头的制造方法 Manufacturing method has good performance of geological exploration drill
05/21/2014CN103806841A 具有良好性能的石油勘探钻头的制造方法 Manufacturing method has good performance of oil exploration drill
05/21/2014CN103806840A 单向螺旋半挤土钻头及单向螺旋半挤土桩施工工艺 Half-way screw drill and soil compaction half-way spiral displacement pile construction technology
05/21/2014CN103806839A 一种钻孔装置 One kind of drilling equipment
05/21/2014CN103806838A 岩石层打桩钻头 Piling rock drill
05/21/2014CN102586843B 一种长寿命电镀金刚石钻头的制造方法 A method for producing long-life electroplated diamond drill
05/21/2014CA2825729A1 Diamond mining core drill bit and methods of making thereof
05/20/2014US8731717 Methods for manipulating cutting elements for earth-boring drill bits and tools
05/20/2014US8728184 Bonding structure and bonding method for cemented carbide element and diamond element, cutting tip and cutting element for drilling tool, and drilling tool
05/20/2014US8727046 Polycrystalline diamond compacts including at least one transition layer and methods for stress management in polycrsystalline diamond compacts
05/20/2014US8727045 Polycrystalline diamond compacts, methods of making same, and applications therefor
05/20/2014US8727044 Polycrystalline diamond compact including a carbonate-catalyzed polycrystalline diamond body and applications therefor
05/20/2014US8727043 Cutter assemblies, downhole tools incorporating such cutter assemblies and methods of making such downhole tools
05/20/2014US8727042 Polycrystalline compacts having material disposed in interstitial spaces therein, and cutting elements including such compacts
05/20/2014CA2660101C Pneumatic impact piercing tool
05/15/2014WO2014074579A1 Systems and methods for vapor pressure leaching polycrystalline diamond cutter elements
05/15/2014US20140134403 Interface modification of polycrystalline diamond compact
05/15/2014US20140131119 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
05/15/2014US20140131118 Method of using spring loaded blocker to retain rolling cutters or mechanical lock cutters
05/15/2014US20140131117 Sintering of thick solid carbonate-based pcd for drilling application
05/15/2014US20140131116 Non-rotating drill bit for a down-the-hole drill hammer
05/15/2014US20140131115 Method For Reducing Intermetallic Compounds In Matrix Bit Bondline
05/15/2014US20140131111 Two-centre rotary boring bit and method for deepening an existing well
05/15/2014US20140131109 Adjustable diameter underreamer and methods of use
05/15/2014US20140131108 Underreamer for increasing a wellbore diameter
05/15/2014US20140130418 Method of making carbonate pcd and sintering carbonate pcd on carbide substrate
05/14/2014EP2729653A2 Tool holder, and chisel support and drilling bit for a drill head
05/14/2014CN203594377U 连续油管重力钻具 Coiled tubing drilling gravity
05/14/2014CN203594368U 螺旋锥体挤土钻头 Soil compaction spiral cone drill
05/14/2014CN203594367U 螺旋半挤土排土钻具 Dump half spiral drill soil compaction
05/14/2014CN203594366U 一种公路钻头 One kind of road drill
05/14/2014CN203594365U 近钻头扭转冲击器 Near the impactor twist drill
05/14/2014CN103797214A 用于挖掘工具的尖头和包括该尖头的挖掘工具 For mining tools, including the pointed tip and mining tools
05/14/2014CN103790548A 梅花钻头条形丝口注浆管 Plum strip wire port grouting drill pipe
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