| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 01/11/2012 | CN102312654A Singe-action three-pipe drilling tool ball cage type indexable directional deflecting device |
| 01/11/2012 | CN101660391B Radial horizontal drilling device |
| 01/11/2012 | CN101484657B Excavator for underground excavating, rotary excavator and underground excavating method |
| 01/10/2012 | CA2723012C Apparatus and method for drilling a wellbore with casing and cementing the casing in the wellbore |
| 01/10/2012 | CA2671096C System and method for longitudinal and lateral jetting in a wellbore |
| 01/10/2012 | CA2529588C Flexible drill string member |
| 01/05/2012 | WO2012003393A2 Hand-held water drill |
| 01/05/2012 | WO2012003044A1 Compliant deck tower |
| 01/05/2012 | WO2012002936A1 Apparatus for directional drilling |
| 01/05/2012 | WO2012002827A1 Radial vibrational apparatus |
| 01/05/2012 | WO2012000077A1 Remotely operable underwater drilling system and drilling method |
| 01/05/2012 | WO2011130123A3 Anchor system and method for anchoring a tool with a positional bias |
| 01/05/2012 | US20120000710 System and Method for Soil Saturation and Digging |
| 01/05/2012 | US20120000709 Directional drilling control using periodic perturbation of the drill bit |
| 01/05/2012 | US20120000708 Surfactant Additives Used to Retain Producibility While Drilling |
| 01/05/2012 | US20120000672 Vertizontal geothermal loop and installation method |
| 01/05/2012 | CA2803288A1 Radial vibrational apparatus |
| 01/05/2012 | CA2802872A1 Remotely operable underwater drilling system and drilling method |
| 01/05/2012 | CA2801391A1 Compliant deck tower |
| 01/04/2012 | EP2401467A1 Drill bit with adjustable cutters |
| 01/04/2012 | EP2401465A2 Downhole vibration apparatus and method |
| 01/04/2012 | CN202100203U Interlock type butt joint drill |
| 01/04/2012 | CN202100198U Hydraulic while-drilling underreamer |
| 01/04/2012 | CN202100197U Turbine type negative pressure impulse nozzle |
| 01/04/2012 | CN202100196U Positive-pressure type high-pressure rigid particle injection device |
| 01/04/2012 | CN202100195U Minute borehole system for ultra-short radius side drill of continuous oil pipe |
| 01/04/2012 | CN202100194U Wheeled full-rotating petrol-electric hybrid rotary drilling rig |
| 01/04/2012 | CN202100193U Crawler-type drilling equipment |
| 01/04/2012 | CN202100192U Spiral ground pile drilling rig |
| 01/04/2012 | CN102308057A Offset Stochastic control |
| 01/04/2012 | CN102305035A Device for adjusting centration of complete vehicle-mounted service machine to wellhead |
| 01/04/2012 | CN102305024A Device for drilling machine for short-distance movement along rail and moving method thereof |
| 01/04/2012 | CN102305022A Salvage-type casing pipe drilling tool for drilling |
| 01/04/2012 | CN102305021A Experimental method for simulating dynamic mechanics characteristic of underground drilling rig of air well drilling |
| 01/04/2012 | CN102304920A All-electric suspended wheel type remote control piling machine |
| 01/04/2012 | CN101984191B High pressure jet grouting pile driving machine |
| 01/04/2012 | CN101463707B Design method of rotation guiding drilling tool in drilling state |
| 01/04/2012 | CN101457635B Design method for rotating guide drilling tool |
| 01/03/2012 | USRE43054 Method and apparatus for casing exit system using coiled tubing |
| 01/03/2012 | US8087480 Device and method for feeding particles into a stream |
| 01/03/2012 | US8087479 Drill bit with an adjustable steering device |
| 01/03/2012 | US8087476 System and method for damping vibration in a drill string using a magnetorheological damper |
| 01/03/2012 | US8087473 Mobile self-erecting directional drilling rig apparatus |
| 01/03/2012 | US8087466 Centralization and running tool and method |
| 01/03/2012 | CA2663004C Method and apparatus to vibrate a downhole component |
| 01/03/2012 | CA2474998C Well system |
| 12/29/2011 | WO2011109075A3 Dual top drive systems and methods |
| 12/29/2011 | US20110315450 Coiled tubing orienter tool with high torque planetary gear stage design drive |
| 12/29/2011 | US20110315448 Cutting Elements for Cutting Tools |
| 12/29/2011 | US20110315447 Downhole cutting tool having center beveled mill blade |
| 12/29/2011 | US20110315444 Apparatus and Methods for Corrosion Protection of Downhole Tools |
| 12/29/2011 | US20110315371 Open-hole anchor whipstock system |
| 12/28/2011 | EP2399001A2 Drilling scorecard |
| 12/28/2011 | EP2398995A2 Stabilizer assemblies with bearing pad locking structures and tools incorporating same |
| 12/28/2011 | EP2029854B1 Downhole formation testing sensors |
| 12/28/2011 | CN202090904U 水平定向钻机阀控自动合流液压系统 Horizontal directional drilling valve controlled hydraulic system to automatically merge |
| 12/28/2011 | CN202090851U 一种泥浆对注接头 One kind of mud on the Notes Connector |
| 12/28/2011 | CN202090847U 加强隔水导管组合结构 Strengthen riser composite structures |
| 12/28/2011 | CN202090834U 一种水动震动器 A water moving vibrator |
| 12/28/2011 | CN202090833U 一种对钢筋混凝土构筑物水下钻切中所使用的钻孔装置 An underwater drilling of reinforced concrete structures used in drilling device hit |
| 12/28/2011 | CN202090832U 不破坏墙面的冲击钻配件 Do not damage the wall of the impact of drilling accessories |
| 12/28/2011 | CN202090831U 多功能挖掘机型式动臂折叠液压旋转切削气动冲击钻机 Multifunctional folding hydraulic excavator boom type rotary cutting pneumatic impact rig |
| 12/28/2011 | CN202090830U 带万向铰接副的多功能简易动臂双折液压钻机 Vice versatility with simple universal hinged bi-fold boom hydraulic drill |
| 12/28/2011 | CN202090829U 快回缩液压锚杆、锚索钻机 Quick retraction of hydraulic bolt and anchor rig |
| 12/28/2011 | CN202090828U 一种岩样任意孔位模拟钻进微型钻机 Any one kind of rock samples analog hole drilling rig miniature |
| 12/28/2011 | CN102296974A 采场破碎顶板快速维护方法 Fast stope broken roof maintenance methods |
| 12/28/2011 | CN102296957A 冲击地压煤层巷道掘进时的一炮贯通卸压法 A gun through the decompression method rockburst when roadway excavation |
| 12/28/2011 | CN102296929A 非开挖导向钻机用搅泥沙器 Trenchless-oriented drills, stir sediment control |
| 12/28/2011 | CN101575943B 一种液压高速钻机 A hydraulic high-speed drilling rig |
| 12/27/2011 | US8083010 Drilling device for drilling and reaming of a hole |
| 12/27/2011 | US8083008 Pressure pulse fracturing system |
| 12/27/2011 | US8082999 Drilling and completion deflector |
| 12/22/2011 | WO2011160027A2 Oil operated rotary steerable system |
| 12/22/2011 | WO2011159563A2 Subsea completions and well interventions using a vessel of opportunity |
| 12/22/2011 | WO2011159192A1 "istok" drilling installation |
| 12/22/2011 | WO2011130350A3 Cementing whipstock apparatus and methods |
| 12/22/2011 | WO2011130159A3 Methods and systems for drilling |
| 12/22/2011 | US20110308862 Drilling system |
| 12/22/2011 | US20110308861 Expandable reamers for subterranean drilling and related methods |
| 12/22/2011 | US20110308860 Continuous Circulating Sub for Drill Strings |
| 12/22/2011 | US20110308858 Flex joint for downhole drilling applications |
| 12/21/2011 | CN202081841U 自走式油电两用修井机 Self-propelled electric dual workover oil |
| 12/21/2011 | CN202081822U 一种管道地下穿越钻孔装置 One kind of underground pipeline crossing the drilling device |
| 12/21/2011 | CN202081821U 全液压一体化多用途切削钻机 Integrated multi-purpose cutting hydraulic rig |
| 12/21/2011 | CN102287137A 自激共振钻井装置及其钻井方法 Self-excited resonance drilling rigs and drilling method |
| 12/21/2011 | CN102287136A 水力喷射钻井喷头 Water jet nozzle drilling |
| 12/21/2011 | CN102287135A 一种钻探设备 A method of drilling equipment |
| 12/21/2011 | CN102287134A 一种液压动力基桩钻孔机机构 A hydraulic power mechanism of pile drilling machine |
| 12/20/2011 | US8082105 Method and apparatus for measuring in-situ stress of rock using thermal crack |
| 12/20/2011 | US8079426 Integrated drilling deck and bop handling |
| 12/15/2011 | WO2011156364A2 Improved soil shoring method |
| 12/15/2011 | WO2011155846A1 System and method for oil and/or gas development |
| 12/15/2011 | WO2011154919A2 A drill, related drilling arrangement and/or methods therefor |
| 12/15/2011 | WO2011153584A1 Casing spinner |
| 12/15/2011 | WO2011133544A3 Apparatus and methods for estimating tool inclination using bit-based gamma ray sensors |
| 12/15/2011 | WO2011126844A3 Mobile offshore drilling unit |
| 12/15/2011 | WO2011126359A3 Method for introducing an elongated element, in particular geo-thermal heat exchanger, into the soil |
| 12/15/2011 | US20110303461 Clutch for a Jack Element |
| 12/15/2011 | US20110303460 Rock drilling in great depths by thermal fragmentation using highly exothermic reactions evolving in the environment of a water-based drilling fluid |
| 12/15/2011 | US20110302869 Dual offset derrick |