| Patents for E21B 12 - Accessories for drilling tools (993) |
|---|
| 03/05/2015 | US20150060142 Mechanical core jam indicator for coring tools, coring tools including such core jam indicators, and related methods |
| 02/19/2015 | WO2015023925A1 Locking ring with tapered recesses |
| 02/19/2015 | WO2015023807A1 Hydraulic load sensor system and methodology |
| 02/12/2015 | US20150041147 Oil well safety valve apparatus and method |
| 02/11/2015 | EP2834461A2 Drilling control and information system |
| 02/11/2015 | EP2834460A2 Drilling control system |
| 02/11/2015 | EP2834459A2 Drilling control and information system |
| 02/11/2015 | EP2834458A2 Drilling information system |
| 02/11/2015 | EP2834455A2 Wellbore information system |
| 02/11/2015 | CN204152443U 螺杆钻具用防脱压稳定器 Screw drill with anti-off pressure stabilizer |
| 02/11/2015 | CN204152442U 液力抗冲击螺杆钻具 Hydraulic impact screw drill |
| 02/05/2015 | WO2015017110A1 Submersible electrical machine and method |
| 02/05/2015 | WO2015016912A1 Mainbore clean out tool |
| 02/05/2015 | CA2857777A1 Hole-vac |
| 02/04/2015 | CN204139980U 用于钻孔整形的管形铰刀 For shaping the tubular drilling reamer |
| 02/03/2015 | US8949098 Iterative drilling simulation process for enhanced economic decision making |
| 01/29/2015 | WO2015013029A1 Electrical power storage for downhole tools |
| 01/29/2015 | WO2015013028A1 Selective electrical activation of downhole tools |
| 01/29/2015 | WO2015011643A1 Instrumented rotary tools with attached cutters |
| 01/28/2015 | CN204126559U 螺旋式自动刮泥器 Spiral automatic scraper |
| 01/28/2015 | CN204126556U 旋挖钻头和钻具 Auger drill bit and drill |
| 01/22/2015 | US20150021093 Downhole measurement assembly, tool and method |
| 01/21/2015 | CN204113126U 螺杆钻具用分体式万向轴总成 Screw drill with split cardan shaft assembly |
| 01/15/2015 | WO2015005923A1 Wellbore component life monitoring system |
| 01/14/2015 | CN204098824U 一种带有冷却循环除尘的钻孔装置 Drilling device with a cooling cycle of dust |
| 01/14/2015 | CN204098786U 一种用于干湿喷搅拌工艺的钻具 Drill for wet jet mixing process |
| 01/14/2015 | CN102953693B 多功能钻杆气动卡瓦 Multifunctional pneumatic drill slips |
| 01/08/2015 | WO2015002653A1 Estimating casing wear |
| 01/08/2015 | WO2015002634A1 Long-stroke hydraulic lift system having reduced height |
| 01/07/2015 | CN204082018U 一种清洁钻杆内壁污垢的装置 A cleaning device drill pipe inner wall of dirt |
| 01/07/2015 | CN104265184A 一种智能在线钻杆 An intelligent line drill |
| 01/07/2015 | CN104265181A 液力抗冲击螺杆钻具 Hydraulic impact screw drill |
| 01/07/2015 | CN104265180A 螺杆钻具用分体式万向轴总成 Screw drill with split cardan shaft assembly |
| 01/01/2015 | US20150000986 Device For Improved Clean Up of Holes |
| 12/18/2014 | US20140367173 Drill bit assembly for a directional percussion boring system |
| 12/17/2014 | CN104213558A 机械打孔粧 Mechanical drilling makeup |
| 12/10/2014 | CN104204357A 挖掘工具及使用挖掘工具的方法 Mining tools and mining tools using methods |
| 12/02/2014 | US8899350 Method and apparatus for detection of drill bit wear |
| 11/13/2014 | US20140332205 Anchor Slip and Seal Locking Mechanism |
| 11/06/2014 | US20140326506 Cutting elements comprising sensors, earth-boring tools comprising such cutting elements, and methods of forming wellbores with such tools |
| 10/28/2014 | US8869919 Drag bit with utility blades |
| 10/09/2014 | WO2014165568A1 Magnetic debris and particle detector |
| 10/09/2014 | US20140299379 Down-Hole Swivel Sub |
| 10/08/2014 | EP2785949A1 Drill bit with seal having spheres in a matrix seal material |
| 10/07/2014 | US8854045 Electronics for a thin bed array induction logging system |
| 10/07/2014 | US8851178 System and method for fracturing while drilling |
| 10/02/2014 | WO2014160625A1 Calibrations for a well drilling apparatus |
| 10/02/2014 | US20140290351 Magnetic Debris and Particle Detector |
| 09/25/2014 | WO2014146201A1 System, method and apparatus for downhole vibration dampening |
| 09/18/2014 | WO2014141157A1 Flow controller for use in drilling operations. |
| 09/04/2014 | US20140246239 Liner Top Cleaning Method Prior to BHA Removal in Drilling with Advancing Liner Systems |
| 08/21/2014 | WO2014126628A1 Rock bit having a flexible metal faced seal |
| 08/12/2014 | CA2724453C Methods and systems for mitigating drilling vibrations |
| 08/06/2014 | CN203756052U 一种具有防泥包槽和弧形护罩的新型钻井钻头 The new drill bit having an anti-balling slots and curved shield |
| 08/06/2014 | CN203756051U 钻头扭矩过载保护器 Drill torque overload protection |
| 08/06/2014 | CN203756047U 一种具有保护罩的石油钻井用pdc钻头 Having a protective cover pdc drill oil drilling |
| 08/06/2014 | CN203756035U 一种适用于径向钻孔套管开窗的带钻穿显示双顶钻头 One for radial drilling casing window display with double top drill drilled |
| 07/31/2014 | WO2013152078A3 Drilling information system |
| 07/31/2014 | WO2013152075A3 Drilling control system |
| 07/31/2014 | WO2013152074A3 Wellbore information system |
| 07/31/2014 | WO2013152073A3 Drilling control and information system |
| 07/31/2014 | WO2013152072A3 Drilling control and information system |
| 07/30/2014 | CN203742466U 自动刮泥器 Automatic scraper |
| 07/30/2014 | CN203742465U 一种螺旋钻杆清土器 Qing earthenware in a spiral drill |
| 07/30/2014 | CN203742464U 一种点钻机钻头伸缩组合套 Retractable combination drill rig for point sets |
| 07/30/2014 | CN203742463U 司钻房泵压表传感器接头装置 Driller Room pump pressure gauge sensor connector device |
| 07/29/2014 | US8789890 Abrasion detecting apparatus detecting abrasion of component of cutter head and tunnel boring machine including abrasion detecting apparatus |
| 07/23/2014 | CN203729890U 一种钻机进回水管接头 One kind of rig into the return pipe fittings |
| 07/16/2014 | CN203716858U 钻具风管密封安装结构 Duct sealing drill mounting structure |
| 07/16/2014 | CN203716853U 新型的扩底铲斗 New belled Bucket |
| 07/16/2014 | CN103924920A 钻具随钻安全装置 Drill drilling safety device |
| 07/08/2014 | US8775099 Method for determining the wear state |
| 07/03/2014 | US20140182868 Bogey style torque bushing for top drive |
| 07/02/2014 | EP2749729A1 Auger cleaning device for removing debris from a helical drilling tool, drilling machine provided with said cleaning device and use of said drilling machine |
| 07/02/2014 | CN203685045U 长螺旋钻机的卸土装置 Long auger soil unloading device |
| 07/02/2014 | CN203685044U 长螺旋钻机 Long auger |
| 07/02/2014 | CN103899248A 一种用于巷道底板的带洛阳铲头的锚索钻机 A roadway floor with Luoyang shovel head anchor rig |
| 06/28/2014 | CA2838146A1 Auger cleaning device for removing debris from a helical drilling tool, drilling machine provided with said cleaning device and use of said dri lling machine |
| 06/25/2014 | CN203669730U 一种改进的液压破碎锤式旋挖钻机 An improved hydraulic breaker type rotary drilling rig |
| 06/25/2014 | CN102587834B 钻具及桩工机械 Drilling and piling machinery |
| 06/25/2014 | CN102373883B 一种潜水入岩钻机 A submerged into the rock drilling rig |
| 06/24/2014 | US8757291 At-bit evaluation of formation parameters and drilling parameters |
| 06/24/2014 | US8757290 Method of monitoring wear of rock bit cutters |
| 06/19/2014 | US20140172305 Systems and Methods for Real-Time Sag Detection |
| 06/18/2014 | CN203655169U 一种液压凿岩钻机用的冲击头润滑油控制装置 A hydraulic rock drills, impact head grease control device |
| 06/18/2014 | CN203655168U 一种钻机大门立柱 One kind rig door pillar |
| 06/18/2014 | CN103867116A Device of floor-type rotary lifting drilling tool of pile driver |
| 06/17/2014 | CA2754204C System and method for damping vibration in a drill string using a magnetorheological damper |
| 06/12/2014 | WO2014088823A1 Mitigation of rotational vibration using a torsional tuned mass damper |
| 06/12/2014 | WO2014088220A1 Inoperativeness-prevention drill bit and method for using same |
| 06/11/2014 | CN103850657A Long-spiral pile driving drill rod as well as soil clearing device thereof, rod connecting device and rod connecting method |
| 06/04/2014 | CN203626618U 钻具清洁装置 Drill cleaning device |
| 06/04/2014 | CN203626617U 窗盖锁紧装置 Window cover locking device |
| 06/03/2014 | US8739897 Pressure compensation and rotary seal system for measurement while drilling instrumentation |
| 05/28/2014 | CN203615032U 一种全液压履带式切削钻机链条的智能润滑系统 Cutting a fully hydraulic crawler drilling rig chain lubrication system intelligence |
| 05/28/2014 | CN203614033U 履带式深孔液压切削钻机 Deep crawler hydraulic cutting rig |
| 05/28/2014 | CN203614030U 一种大风量空压机系统履带式液压切削钻机 One kind of wind capacity air compressor system crawler hydraulic cutting rig |
| 05/27/2014 | CA2369669C Iterative drilling simulation process for enhanced economic decision making |
| 05/22/2014 | WO2014078342A1 Drill bit simulation and optimization |
| 05/21/2014 | CN203604539U 自动补偿缓冲卡钻系统 Automatic compensation buffer sticking system |