| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 02/12/2015 | US20150041151 Rotating wellhead hanger assemblies |
| 02/12/2015 | US20150041149 System for coupling mwd tools |
| 02/12/2015 | US20150041145 Fluoropolymer pipe |
| 02/12/2015 | US20150041143 Apparatus For Controlling Injection Pressure In Offshore Enhanced Oil Recovery |
| 02/12/2015 | US20150041125 Underground coal gasification well liner |
| 02/12/2015 | US20150041118 Method for Installing a self-supporting tower for Extracting Hydrocarbons |
| 02/12/2015 | US20150041117 Low profile magnetic orienting protectors |
| 02/11/2015 | EP2834446A1 Casing window assembly |
| 02/11/2015 | EP2834443A1 Apparatus for drilling and lining a borehole |
| 02/11/2015 | EP2834442A1 Rotating and reciprocating swivel apparatus and method |
| 02/11/2015 | CN204156127U 钻铤仪器用传感器的电路连接结构 Circuit connection structure collars instrument with sensors |
| 02/11/2015 | CN204152506U 一种地层测试用高负载旋转头 One kind of formation testing with high load swivel head |
| 02/11/2015 | CN204152471U 一种封井器 One kind of blowout preventer |
| 02/11/2015 | CN204152454U 一种扶正器 One kind centralizer |
| 02/11/2015 | CN204152453U 防阻卡扶正器 Discourage card centralizer |
| 02/11/2015 | CN204152452U 高抗扭高密封变扣螺纹接头 High torsional high sealing threaded joints become buckle |
| 02/11/2015 | CN204152451U 一种可修复螺纹式大口径探矿钻杆 A correctable Threaded large diameter drill prospecting |
| 02/11/2015 | CN204152450U 全开式安全接头 Full safety fittings |
| 02/11/2015 | CN204152449U 旋挖钻机钻杆的方头连接结构 Rotary drilling rig drill a square head connecting structure |
| 02/11/2015 | CN204152448U 一种套管固井机械滑套及其专用开关装置 Cementing a mechanical switching devices and special casing sleeve |
| 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 |
| 02/11/2015 | CN104350230A 连续旋转式钻井系统和使用方法 Continuous rotary drilling system and method of use |
| 02/11/2015 | CN104343465A 管柱接箍报警装置 String coupling alarm device |
| 02/11/2015 | CN104343414A 一种钻具水眼通用固井水泥钻通装置及方法 One kind of common cementing drill water hole drilled through the apparatus and method |
| 02/11/2015 | CN104343399A 用于钻孔和锚固设备的插入端部 For insertion into the end portion of the drilling and anchoring device |
| 02/11/2015 | CN104343398A 一种多棱锥快速插接密封式螺旋钻杆 A multi-pyramid quick plug sealed spiral drill |
| 02/11/2015 | CN104343397A 管柱接箍报警装置 String coupling alarm device |
| 02/11/2015 | CN104343396A 一种纤维增强复合材料连续抽油杆的制备方法 A fiber-reinforced composite material continuous sucker rod |
| 02/11/2015 | CN104343390A 一种水利扩孔系统 One kind of water conservancy reaming system |
| 02/11/2015 | CN103038437B 在地下井中安装已固定有线路的管柱 Wells have been installed in the underground fixed line column |
| 02/11/2015 | CN102828699B 抗扭抽油杆 Torsion rod |
| 02/10/2015 | US8950787 Pipe and pipe assembly provided with layers of electrically conductive material for conveying substances |
| 02/10/2015 | US8950785 Broach style anti rotation device for connectors |
| 02/10/2015 | US8950513 Apparatus and methods for controlling drill string vibrations and applying a force to a drill bit |
| 02/10/2015 | US8950501 Riser clamp |
| 02/10/2015 | US8950499 Pipe-in-pipe apparatus, and methods and systems |
| 02/10/2015 | US8950498 Methods, apparatus and systems for conveying fluids |
| 02/10/2015 | US8950478 Coupling between wellbore tools having central transmission shafts |
| 02/10/2015 | CA2742865C Apparatus and methods to protect connections |
| 02/10/2015 | CA2709648C Well tubings with polymer liners |
| 02/05/2015 | WO2015017568A2 Centralizer |
| 02/05/2015 | WO2015017096A1 Tool with pressure-activated sliding sleeve |
| 02/05/2015 | WO2015017014A1 Extruded encapsulated fillers to provide crush protection |
| 02/05/2015 | US20150035274 Connector assembly |
| 02/05/2015 | US20150035273 4-round thread form |
| 02/05/2015 | US20150034388 Downhole motor coupling systems and methods |
| 02/05/2015 | US20150034386 Fluidic Modulators and Along String Systems |
| 02/05/2015 | US20150034385 Moveable Element to Create Pressure Signals in A Fluidic Modulator |
| 02/05/2015 | US20150034384 Method of and apparatus for drilling a subterranean wellbore |
| 02/05/2015 | US20150034336 Centralizer |
| 02/05/2015 | US20150034327 Drilling system having slot for underwater storage of bop assembly |
| 02/05/2015 | US20150034317 Method of well operation |
| 02/05/2015 | US20150034312 Magnetic Latching Device For Downhole Wellbore Intercept Operations |
| 02/05/2015 | DE102013012714A1 Einsteckende für ein Bohr- und Ankersetzgerät Insertion for a drilling and bolting device |
| 02/04/2015 | EP2831363A1 Friction reduction mechanism for a downhole release assembly |
| 02/04/2015 | CN204140035U 井下造氮气气井快速诱喷完井管柱 Nitrogen gas underground made rapid completion string induced flow |
| 02/04/2015 | CN204139998U 一种防喷防掉一体式螺杆钻具 One kind of anti-out preventer screw hole-in-one |
| 02/04/2015 | CN204139997U 防砂管柱砂体扶正器 Sand column sand centralizer |
| 02/04/2015 | CN204139996U Mwd测斜仪器橡胶扶正器 Mwd inclinometer instrument rubber centralizer |
| 02/04/2015 | CN204139995U 钻孔扶正器及钻具 Drill and drill centralizer |
| 02/04/2015 | CN204139994U 一种微变径整体式灯笼扶正器 A micro adjustable integral lanterns centralizer |
| 02/04/2015 | CN204139993U 带球面柱面密封结构的螺纹接头 Spherical cylinder seal structure nipple |
| 02/04/2015 | CN204139992U 一种高温高压气井用气密封石油套管螺纹连接结构 A high-temperature high-pressure oil and gas well casing seal gas threaded connection |
| 02/04/2015 | CN204139991U 地质勘探用钻杆的连接结构 Geological exploration drill pipe connecting structure |
| 02/04/2015 | CN204139990U 用于钻具卡接的弹卡室结构 For drill snap elastic card room structure |
| 02/04/2015 | CN204139989U 钻杆上的弹卡挡头 Playing cards on the stopper drill |
| 02/04/2015 | CN204139988U 一种智能转换接头 An intelligent adapter |
| 02/04/2015 | CN204139987U 地质勘探钻机的磨圈安装结构 Geological exploration drilling rig grinding ring mounting structure |
| 02/04/2015 | CN204139986U 一种石油开采管道 One kind of oil pipeline |
| 02/04/2015 | CN204139985U 镦锻式空心抽油杆 Upsetting type hollow rod |
| 02/04/2015 | CN204139984U 扩孔钻具 Reaming drill |
| 02/04/2015 | CN204139974U 新型锚杆钻头 The new anchor drill |
| 02/04/2015 | CN204139970U 新型扩孔器 The new reamer |
| 02/04/2015 | CN204139967U 造斜扩孔钻具 Whipstocking reaming drill |
| 02/04/2015 | CN204139965U 可分组启动的多轴钻机 Start of multi-axis drilling rig can be grouped |
| 02/04/2015 | CN204139964U 一种螺杆钻具传动轴总成 A screw drill shaft assembly |
| 02/04/2015 | CN204139963U 一种螺杆钻具传动轴总成的防掉机构 A screw drill shaft assembly of anti-out mechanism |
| 02/04/2015 | CN204138770U 一种非金属导电型油井防偏磨防腐器 A non-metallic conductive type oil filter anti-corrosion eccentric wear |
| 02/04/2015 | CN204136449U 钻杆保护套用板折弯装置 Apply drill protection plate bending device |
| 02/04/2015 | CN204136448U 外翻边型钻杆保护套的外翻边生产流水线 Outer flange type drill outer protective sleeve cuffs production lines |
| 02/04/2015 | CN204136442U 外翻边型钻杆保护套生产流水线 Outer flange-type drill pipe protector production line |
| 02/04/2015 | CN104334824A 致动闭锁系统 Actuated locking system |
| 02/04/2015 | CN104329062A 允许流体在井筒中的筛管内部和管子外部流动的设备和方法 Screen allows fluid flow inside and outside the tube in the apparatus and method of the wellbore |
| 02/04/2015 | CN104329034A 螺杆钻具用可闭合中空防掉帽 Can be closed with a screw hole in the cap off the air defense |
| 02/04/2015 | CN104329033A 六方接头钻杆自动卡接装置 Hexagonal joint drill automatic card access device |
| 02/04/2015 | CN104329032A 双层连续油管伸缩连接器 Double retractable coiled tubing connector |
| 02/04/2015 | CN104329020A 一种加强型长螺旋嵌岩施工设备及其工艺 A way of strengthening the long spiral embedded in rock type of construction equipment and technology |
| 02/04/2015 | CN104328441A 一种非金属导电型油井防偏磨防腐器及其制作方法 A non-metallic conductivity type well sucker corrosion and its manufacturing method |
| 02/04/2015 | CN103321593B 一种主动抑制立管涡激振动的装置及方法 An active suppression apparatus and method riser VIV |
| 02/04/2015 | CN102839923B 钻柱防松装置 Drillstring locking device |
| 02/04/2015 | CN102741496B 用于柔性管路与水下设施的连接组件 Flexible tubing is used to connect the components of the underwater |
| 02/03/2015 | US8944723 Tensioner latch with pivoting segmented base |
| 02/03/2015 | US8944190 System and method for damping vibration in a drill string |
| 02/03/2015 | US8944189 Rod coupling having a sacrificial element |
| 02/03/2015 | US8944188 Retaining arrangement, sub adaptor and/or drill spindle |
| 02/03/2015 | US8944185 Systems and methods to reduce oscillations in magnetic couplings |
| 02/03/2015 | US8944160 Pulsating rotational flow for use in well operations |
| 02/03/2015 | CA2756825C Improved composite tubing |
| 01/30/2015 | CA2857692A1 Downhole shock assembly and method of using same |