| Patents for E21B 29 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground (5,744) |
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| 03/05/2015 | WO2015030721A1 Acid diversion treatments in injection wells using permeability modifiers |
| 03/05/2015 | US20150060085 Plug reception assembly and method of reducing restriction in a borehole |
| 03/05/2015 | US20150060040 Downhole Cutting Tool Having A Jetted Top Bushing |
| 03/03/2015 | US8967276 Non-ballistic tubular perforating system and method |
| 03/03/2015 | US8967275 Agents for enhanced degradation of controlled electrolytic material |
| 03/03/2015 | US8967270 Rigless abandonment system |
| 03/03/2015 | US8967266 Protection of casing lowside while milling casing exit |
| 02/26/2015 | WO2015026452A1 Hybrid rotary cone drill bit |
| 02/26/2015 | US20150053422 Hybrid rotary cone drill bit |
| 02/26/2015 | US20150053397 Re-fracturing Bottom Hole Assembly and Method |
| 02/26/2015 | US20150053391 Radially expandable stabilizer |
| 02/25/2015 | EP2840226A2 Signal operated tools for milling, drilling, and/or fishing operations |
| 02/19/2015 | WO2015023190A1 Method for establishment of a new well path from an existing well |
| 02/19/2015 | US20150047853 System and methodology for mechanically releasing a running string |
| 02/19/2015 | US20150047845 Method for Removal of Casings in an Underground Well |
| 02/19/2015 | US20150047838 Technique and apparatus to form a downhole fluid barrier |
| 02/17/2015 | US8955597 Method and system for abandoning a borehole |
| 02/17/2015 | CA2722612C Signal operated tools for milling, drilling, and/or fishing operations |
| 02/12/2015 | WO2015020748A2 Automatic driller |
| 02/12/2015 | US20150041144 Riser cutting tool |
| 02/12/2015 | US20150041124 Automatic packer |
| 02/11/2015 | EP2834446A1 Casing window assembly |
| 02/11/2015 | CN204152468U 一种金属管开孔装置 Aperture means of a metal tube |
| 02/10/2015 | US8950438 Method and compositions for delivery of a concentrated quantity of sealing elements to a leak site in a vessel |
| 02/05/2015 | WO2015017021A1 A wellbore isolation device containing a substance that undergoes a phase transition |
| 02/05/2015 | US20150034317 Method of well operation |
| 02/04/2015 | CN104334822A 井操作的方法 The method of operation of wells |
| 02/04/2015 | CN104334821A 提高井管形件的密封的系统和方法 Improved systems and methods well sealed tubular member |
| 02/04/2015 | CN104329023A 煤层气丛式井钻井方法 CBM cluster wells drilling method |
| 01/29/2015 | WO2015012848A1 Expandable bullnose assembly for use with a wellbore deflector |
| 01/29/2015 | US20150027719 Method and system for containing uncontrolled flow of reservoir fluids into the environment |
| 01/29/2015 | US20150027709 Non-ballistic tubular perforating system and method |
| 01/29/2015 | US20150027708 Apparatus and Methods for Performing Downhole Operations Using a Selectably Operable Motor |
| 01/29/2015 | US20150027692 Multi-Interval Wellbore Treatment Method |
| 01/28/2015 | CN204126582U 套管无损整形器 Casing lossless shaper |
| 01/28/2015 | CN204126565U 套铣管提升装置 Washover riser pipe |
| 01/28/2015 | CN104314499A 一种双锥体复合型膨胀锥 A dual cone composite cone expansion |
| 01/28/2015 | CN104314498A 一种侧钻水平井高效完井方法 A lateral horizontal well completions and efficient method |
| 01/27/2015 | US8939212 Corrosion barrier cap system |
| 01/27/2015 | US8939210 Drill collar severing tool |
| 01/27/2015 | US8939204 Method and apparatus for communicating with a device located in a borehole |
| 01/27/2015 | US8938930 Support apparatus for wellbore tools |
| 01/22/2015 | WO2015009752A1 Fluid transport systems for use in a downhole explosive fracturing system |
| 01/22/2015 | WO2015009662A2 Well bore casing cutting tool having an improved blade structure and pad type stabilizers |
| 01/22/2015 | US20150021042 Drillable plug |
| 01/22/2015 | US20150021029 Method and Apparatus for Casing Entry |
| 01/21/2015 | EP2825719A2 Method of well operation |
| 01/21/2015 | CN204113174U 一种一次投球即可实现多级、连续震击的震击器 A once-pitching to achieve multi-level, continuous Shock jar |
| 01/21/2015 | CN204113171U 一种能自收缩的液压胀锥 One kind of energy since the contraction of the hydraulic expansion cone |
| 01/21/2015 | CN204113170U 一种套管整形装置 One kind of shaping device casing |
| 01/21/2015 | CN204113169U 磨铣打捞器 Milling fisher |
| 01/21/2015 | CN204113117U 磨料水射流径向钻孔装置 Abrasive water jet radial drilling device |
| 01/21/2015 | CN104295238A 磨料水射流径向钻孔装置 Abrasive water jet radial drilling device |
| 01/20/2015 | US8936109 Cutting elements for cutting tools |
| 01/20/2015 | US8936108 High power laser downhole cutting tools and systems |
| 01/20/2015 | US8936095 Methods of magnetic particle delivery for oil and gas wells |
| 01/20/2015 | US8936088 Cutting assembly and method of cutting coiled tubing |
| 01/20/2015 | US8936081 Compositions and methods for servicing subterranean wells |
| 01/20/2015 | US8936078 Shearable control line connectors and methods of use |
| 01/20/2015 | CA2808129C Subterranean cutting tool structure tailored to intended use |
| 01/20/2015 | CA2801036C System and method for severing a tubular |
| 01/20/2015 | CA2542990C Expandable sleeve |
| 01/15/2015 | US20150013981 Creation of SWEGS Appendages and Heat Pipe Structures |
| 01/14/2015 | EP2823136A1 Casing cutting tool, with stabilizing structure |
| 01/14/2015 | EP2823133A1 Method for removal of casings in an underground well |
| 01/14/2015 | CN204098838U 一种套铣打捞一体化修井工具 One kind Washover salvage workover tools integration |
| 01/14/2015 | CN204098830U 油水井溢流导流器 Oil wells overflow diverter |
| 01/13/2015 | US8931555 Device for a downhole apparatus for machining of casings and also a method of depositing machined shavings |
| 01/08/2015 | WO2015003188A1 Apparatus and mehtod for cultivating a downhole surface |
| 01/08/2015 | US20150007994 Open Hole Casing Run Perforating Tool |
| 01/08/2015 | US20150007993 Protection of casing lowside while milling casing exit |
| 01/08/2015 | US20150007991 Method for Establishment of a New Well Path from an Existing Well |
| 01/07/2015 | CN204082065U 一种套管开窗斜向器用可循环接头 Used for one kind of casing window diagonal joints can be recycled |
| 01/07/2015 | CN204082064U 一种变径式潜山地层连续开窗工具 One kind of adjustable type hill formations continuous windows tool |
| 01/07/2015 | CN104265222A 一种能自收缩的液压胀锥 One kind of energy since the contraction of the hydraulic expansion cone |
| 01/07/2015 | CN104265221A 一种铣刀式水平井牵引机器人清楚障碍机构 One kind of traction robotic cutter horizontal well clear obstacles institutions |
| 01/07/2015 | CN104265161A 5寸半套管内自由段开窗侧钻工艺 Sidetrack free section within five and a half inches casing drilling technology |
| 01/06/2015 | CA2734023C Methods and apparatus relating to expansion tools for tubular strings |
| 12/31/2014 | CN204060595U 高压测压开孔器 High pressure manometry HOLE |
| 12/31/2014 | CN204060594U 变径可回收斜向器 Reducing recyclable whipstock |
| 12/31/2014 | CN204060593U 一种电泵专用套铣筒 One kind of pump sets special milling drum |
| 12/31/2014 | CN104251124A 一种石油钻采设备用耐高温膨胀管 A petroleum drilling equipment with high temperature expansion pipe |
| 12/31/2014 | CN102877808B 一种摄像定位分段爆破处理堵井的方法 A camera positioning segmented approach to plugging wells blasting |
| 12/30/2014 | US8919441 Method of intersecting a first well bore by a second well bore |
| 12/30/2014 | US8919430 Blowout container |
| 12/25/2014 | US20140374100 Punching tool |
| 12/24/2014 | CN204040969U 一种水力加砂段铣和开窗喷射器 One kind of hydraulic sand section milling and windows that open ejector |
| 12/24/2014 | CN204040968U 一种可回收式小通径活性错断井示踪器 Small bore a recyclable active faulting well tracer |
| 12/24/2014 | CN104234652A 移动式油管抽油杆剪切装置 Mobile tubing rod shear device |
| 12/23/2014 | US8915676 Subsea clamp connector emergency release tool and method |
| 12/23/2014 | US8915298 Slickline or wireline run hydraulic motor driven mill |
| 12/23/2014 | US8915296 Apparatus and method for setting a tool in a borehole |
| 12/18/2014 | US20140367117 Agents for enhanced degradation of controlled electrolytic material |
| 12/18/2014 | US20140367116 Ball Check Valve Integration to ICD |
| 12/17/2014 | CN204024556U 绳类通井规 Rope through well regulated |
| 12/17/2014 | CN204024554U 油气井一体式套管段铣及裸眼造穴工具 Integrated oil and gas well casing section milling and hole making tool for the naked eye |
| 12/17/2014 | CN104220693A 用于自动缩短地下煤气化的注入管的牺牲性衬里连结件 Underground coal gasification is used to automatically shorten sacrificial injection pipe lining linkage |
| 12/17/2014 | CN104213862A 一种套管整形装置 One kind of shaping device casing |
| 12/17/2014 | CN104213861A 一种膨胀管膨胀工艺方法及工具系统 An expansion pipe expansion process methods and tools for system |
| 12/16/2014 | US8912806 Method of cutting and testing a pipeline cut under water or under a seabed |