| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 01/29/2015 | WO2015013438A1 Centralizers for centralizing well casings |
| 01/29/2015 | WO2015013393A1 Shoulder ring for transmission line and transmission devices |
| 01/29/2015 | WO2015012972A1 Tubular string displacement assistance |
| 01/29/2015 | WO2015012854A1 Retrieval of compressed packers from a wellbore |
| 01/29/2015 | WO2015012799A1 Expandable liner hanger with high axial load capacity |
| 01/29/2015 | WO2015011394A1 Method and facility for producing an instrumented pipe |
| 01/29/2015 | WO2015011336A1 Method in putting together of a down-the-hole drilling apparatus and a down-the-hole drilling apparatus |
| 01/29/2015 | WO2015010463A1 Anchoring and anti-blocking drill rod for coal mine floor |
| 01/29/2015 | US20150030480 Delta-Shaped Power Cable Within Coiled Tubing |
| 01/29/2015 | US20150030374 Isolated shearing mechanism for downhole tools |
| 01/29/2015 | US20150028585 Threadless Torque Connector |
| 01/29/2015 | US20150028168 Multi-Conduit Coiled Tubing Assembly |
| 01/29/2015 | US20150027785 Borehole cutter retention and fastening/locking system |
| 01/29/2015 | US20150027738 Method and system for one-trip hanger installation |
| 01/29/2015 | US20150027734 Flexible Connections |
| 01/29/2015 | US20150027729 Wireline roller standoff |
| 01/29/2015 | US20150027727 Tubular string displacement assistance |
| 01/29/2015 | US20150027720 Metal-to-composite interfaces |
| 01/29/2015 | US20150027691 Gas lift assembly and methods |
| 01/29/2015 | US20150027685 Shoulder ring for transmission line and transmission devices |
| 01/29/2015 | US20150027684 Centralizers for centralizing well casings |
| 01/28/2015 | EP2828475A2 Drill string mountable wellbore cleanup apparatus and method |
| 01/28/2015 | EP2828469A1 Internal gripping system |
| 01/28/2015 | EP2828467A1 Well centralizer |
| 01/28/2015 | EP2828466A2 A downhole disconnect device and method of operation |
| 01/28/2015 | EP2828465A2 Cladding |
| 01/28/2015 | EP2828464A1 Erosion reduction in subterranean wells |
| 01/28/2015 | CN204126631U 测调联动安全电缆头 Measured tone interlocking security cable head |
| 01/28/2015 | CN204126617U 水聚同井分层同注工艺管柱 Poly water injection process with well layered with strings |
| 01/28/2015 | CN204126568U 一种用于煤层气水平井中的引鞋 A horizontal CBM wells guide shoe |
| 01/28/2015 | CN204126567U 地质资源勘探钻井钻具扶正居中及套管防磨井下工具 Geological exploration drilling tools and casing wear righting centered downhole tools |
| 01/28/2015 | CN204126566U 一种石油套管接头 A petroleum spigot |
| 01/28/2015 | CN204126565U 套铣管提升装置 Washover riser pipe |
| 01/28/2015 | CN204126564U 双层连续油管伸缩连接器 Double retractable coiled tubing connector |
| 01/28/2015 | CN204126563U 一种高耐磨抗腐蚀油套管 A highly corrosion resistant casing and tubing |
| 01/28/2015 | CN104314482A 用于松软煤层钻进封闭式螺旋护孔钻具及其使用方法 Closed for soft coal seam drilling screw retaining hole drill and methods of use |
| 01/28/2015 | CN104314481A 钻柱仿生减摩阻方法及自牵引钻具组合 Bionic drillstring friction reduction method since pulling BHA and |
| 01/28/2015 | CN104314480A 一种管具扶正装置 A pipe with righting device |
| 01/28/2015 | CN104314479A 一种膨胀筛管的连接组件 A screen connected components expansion |
| 01/28/2015 | CN104314478A 扶正防偏磨防结蜡抽油杆接箍 Righting sucker rod coupling anti-Wax |
| 01/28/2015 | CN104314477A 一种基于适配器的钻杆 An adapter is based on drill |
| 01/28/2015 | CN104314476A 套管固井机械滑套及其专用开关装置 Mechanical sleeve casing cementing its special switching devices |
| 01/28/2015 | CN104314467A 一种掘进钻机 One kind of boring rig |
| 01/28/2015 | CN104314465A 一种减小钻柱与井壁摩阻的方法及一种分割接头 And a method for reducing the friction borehole drill string and a split connector |
| 01/28/2015 | CN103061683B 一种钻柱和完井筛管两用工具 One kind of drill string and completion tools dual screens |
| 01/28/2015 | CN102418500B 直控式连续定量分层配产油管柱 Direct-controlled continuous oil column with quantitative stratification |
| 01/27/2015 | US8942529 Fibre optic tape assembly |
| 01/27/2015 | US8941384 Reliable wired-pipe data transmission system |
| 01/27/2015 | US8939232 Hand-held power tool device |
| 01/27/2015 | US8939214 Riser connector |
| 01/27/2015 | US8939039 Load cell for a downhole load measuring tool |
| 01/27/2015 | CA2789735C Providing a local response to a local condition in an oil well |
| 01/27/2015 | CA2632820C High strength threaded joint, particularly for lined tubes |
| 01/22/2015 | WO2015009313A1 Hybrid big hole liner |
| 01/22/2015 | WO2015007579A1 Assembly for producing a threaded connection for drilling and operating hydrocarbon wells, and resulting threaded connection |
| 01/22/2015 | US20150021049 Swellable casing anchor |
| 01/22/2015 | US20150021047 Centralizer assembly and method for attaching to a tubular |
| 01/22/2015 | US20150021046 Threaded connections and methods |
| 01/22/2015 | US20150021039 Umbilical |
| 01/22/2015 | US20150021018 High Pressure Large Bore Well Conduit System |
| 01/22/2015 | US20150020910 Bend limiter |
| 01/22/2015 | US20150020373 Method of manufacturing continuous sucker rod |
| 01/22/2015 | CA2857461A1 Inspection methods for reprocessing non-metallic oilfield tools |
| 01/21/2015 | EP2826948A2 RFID connection sleeve |
| 01/21/2015 | EP2825721A2 Blowout preventer assembly |
| 01/21/2015 | EP2825717A1 Spin wrench assembly |
| 01/21/2015 | CN204113279U 注采气管柱验漏及堵漏管柱结构 Gas injection test leakage and plugging string string structure |
| 01/21/2015 | CN204113278U 一种储气库用测试管柱 One kind of gas storage with a test string |
| 01/21/2015 | CN204113274U 测井仪器扶正堵头 Logging equipment righting plug |
| 01/21/2015 | CN204113153U 螺旋伸缩式循环三通 Retractable spiral cycle links |
| 01/21/2015 | CN204113142U 螺杆钻具用球柱密封万向轴总成 Ball screw drill column universal shaft seal assembly |
| 01/21/2015 | CN204113141U 一种复合抽油杆旋转装置 A composite rod rotation device |
| 01/21/2015 | CN204113140U 油管丝扣保护装置 Threaded pipe protection device |
| 01/21/2015 | CN204113139U 钻井包套管扶正台区域安全装置 Drilling pack casing centralizer Taiwan regional security device |
| 01/21/2015 | CN204113138U 一种用于大斜度小曲率半径套管井的柔性滚轮加重短节 Flexible wheel a small radius of curvature for highly deviated wells heavier casing short section |
| 01/21/2015 | CN204113137U 一种旋挖钻机钻杆中方头与芯杆的连接结构 China is one kind of rotary drilling rig drill head and the stem connecting structure |
| 01/21/2015 | CN204113136U 一种万向短节 Comprising a universal short section |
| 01/21/2015 | CN204113135U 一种管端局部加工摩擦焊接钻杆 A pipe end local processing friction welding drill |
| 01/21/2015 | CN204113134U 一种旋挖钻机钻杆加强结构 One kind of rotary drilling rig drill reinforcing structure |
| 01/21/2015 | CN204113133U 一种旋挖钻机钻杆 One kind of rotary drilling rig drill |
| 01/21/2015 | CN204113132U 一种高温高压井筒用试验套管的防旋转装置 A high-temperature high-pressure test wellbore casing with anti-rotation device |
| 01/21/2015 | CN204113131U 一种煤层气井用螺杆泵管柱 One kind of CBM wells screw column |
| 01/21/2015 | CN204113130U 一种超强型三棱圆弧形钻杆 One kind of super-type triangular arc-shaped drill |
| 01/21/2015 | CN204113129U 一种高强度拆分式石杆 A high strength rod style stone splits |
| 01/21/2015 | CN204113114U 一种刚性马达钻具 A rigid drill motor |
| 01/21/2015 | CN104302862A 用于冲击钻削的钻头 Impact drill bit for drilling |
| 01/21/2015 | CN104295277A 一种注汽密封插管 An injection of steam sealed tube |
| 01/21/2015 | CN104295248A 一种钻杆供水装置 One kind of drill pipe water supply system |
| 01/21/2015 | CN104295247A 一种旋挖钻机钻杆的分段连接结构 An auger drill rig segment connecting structure of |
| 01/21/2015 | CN104295246A 钻杆接头 Drill pipe joints |
| 01/21/2015 | CN104295245A 嵌套双钻杆 Nesting pairs drill |
| 01/21/2015 | CN104295244A 组合式防腐耐磨抽油杆 Combined corrosion resistant rod |
| 01/21/2015 | CN104295243A 油气井完井管柱及完井工艺 Oil and gas well completion string and Completion Technology |
| 01/21/2015 | CN104295231A 一种低摩阻可变径液力推力器 A low friction can be adjustable hydraulic thruster |
| 01/21/2015 | CN102943633B 一种螺纹连接结构 One kind of threaded connection |
| 01/21/2015 | CN102704867B 油田采油专用真空保温循环管 Oilfield special vacuum insulation circulation pipe |
| 01/20/2015 | US8936098 System and method for remediating a wellbore annulus |
| 01/20/2015 | US8936091 Well jet pumping assembly for degassing coal beds |
| 01/20/2015 | CA2791650C Artificial lift system for well production |
| 01/20/2015 | CA2783113C Telescopic unit with dissolvable barrier |