| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 05/09/2012 | CN202215158U High-performance oil-casing-pipe screwed joint structure |
| 05/09/2012 | CN202215157U Triangular pyramid-shaped drill rod for drilling coal mine roadway |
| 05/09/2012 | CN202215156U Midsection-substituted percussive drilling heavy drill rod formed by friction welding |
| 05/09/2012 | CN102444385A Spline drill rod |
| 05/07/2012 | DE202012101383U1 Druckausgleichsring zur Anordnung zwischen zwei Vortriebsrohren eines unterirdischen Rohrvortriebs Pressure equalization ring for arrangement between two jacking pipes of an underground pipe jacking |
| 05/03/2012 | WO2012057898A1 Remotely operated underwater redirection plenum chamber for spill response |
| 05/03/2012 | WO2012055036A1 Submersible progressive cavity pump driver |
| 05/03/2012 | US20120103622 Efficient open water riser deployment |
| 05/03/2012 | US20120103597 Overpull Indicator |
| 05/03/2012 | CA2816365A1 Submersible progressive cavity pump driver |
| 05/02/2012 | EP2446112A1 Apparatus and method for stimulating subterranean formations |
| 05/02/2012 | EP2446105A2 Through tubing intelligent completion and method |
| 05/02/2012 | CN202209152U Plastic-coated rod collar |
| 05/02/2012 | CN102439343A Protective sleeve for a flexible pipe |
| 05/02/2012 | CN102434115A Strong rotational flow sleeve centralizer |
| 05/02/2012 | CN102434114A Anti-tripping sucker rod |
| 05/02/2012 | CN102434113A Front connector of high air-pressure down-the-hole hammer |
| 05/02/2012 | CN102434112A Oil pumping polished rod and preparation method thereof |
| 05/01/2012 | US8170837 Oilfield equipment identification method and apparatus |
| 05/01/2012 | US8167059 Casing and liner drilling shoes having spiral blade configurations, and related methods |
| 05/01/2012 | US8167035 Method of forming downhole apparatus, downhole apparatus and centralizer comprising the same |
| 05/01/2012 | US8167034 Device for centering a well casing |
| 04/26/2012 | WO2012052401A1 A pipe coupling |
| 04/26/2012 | WO2012028864A3 Non-threaded drill pipe connection |
| 04/26/2012 | WO2012021302A3 Drilling system for enhanced coring and method |
| 04/26/2012 | WO2012005979A3 Wellbore centralizer for tubulars |
| 04/26/2012 | US20120097398 Multi-Zone Fracturing Completion |
| 04/25/2012 | EP2444588A2 Landing string compensator |
| 04/25/2012 | EP2443311A2 Dual anchoring tubular back-off tool |
| 04/25/2012 | EP2443310A2 Downhole tools and methods of setting in a wellbore |
| 04/25/2012 | EP2443307A1 Intermediate disconnection tool to be placed in a shuttle lowered into a well for exploiting a fluid, and related shuttle and method |
| 04/25/2012 | EP2443306A2 Weakpoint coupling of selectively adjustable load bearing capacity |
| 04/25/2012 | CN202202827U 可调式速换打桩机钻杆 Adjustable quick change drill hammers |
| 04/25/2012 | CN202202826U 一种可调节深度的打桩机钻杆 An adjustable depth drill hammers |
| 04/25/2012 | CN202202825U 发电机流量试验测试固定短节 Generator flow test test fixture short section |
| 04/25/2012 | CN202202824U 扶正器 Centralizer |
| 04/25/2012 | CN202202823U 轨道式安全接头 Track safety fittings |
| 04/25/2012 | CN202202822U 钻杆减扭接头 Less twist drill pipe joints |
| 04/25/2012 | CN202202821U Drilling rig |
| 04/25/2012 | CN202202820U 多功能钎尾套 Multifunction shank sets |
| 04/25/2012 | CN202202819U 钢管外壁回压装置 Steel wall back pressure device |
| 04/25/2012 | CN202202818U 潜孔锤局部气举反循环集渣装置 DTH local gas lift Reverse Circulation set Java device |
| 04/25/2012 | CN202202324U 旋喷加劲桩的施工设备 Churning construction equipment stiffening pile |
| 04/25/2012 | CN202202321U 分体式车载轻型打桩机 Light-vehicle pile-split |
| 04/25/2012 | CN202202320U 一种三轮车车载螺旋打桩机 One kind of tricycle-vehicle pile-helix |
| 04/25/2012 | CN102428245A 用于钻探和操作油气井的螺纹连接部 Operations for drilling oil and gas wells and the threaded connection portion |
| 04/25/2012 | CN102428244A 保护柔性立管的方法及其设备 Protection of flexible risers method and apparatus |
| 04/25/2012 | CN102425382A 动压润滑钻具及具有该钻具的钻具组合 Hydrodynamic lubrication drilling BHA and have the drill |
| 04/25/2012 | CN102425381A 钻柱连接件 Drill string connections |
| 04/25/2012 | CN102425376A 一种旋挖钻机用的钻具及包括该钻具的旋挖钻机 One kind of rotary drilling rig with drilling and include the drilling of rotary drilling rig |
| 04/24/2012 | US8162067 System and method to expand tubulars below restrictions |
| 04/24/2012 | US8162062 Offshore well intervention lift frame and method |
| 04/24/2012 | US8162054 Methods and apparatuses for releasing a chemical into a well bore upon command |
| 04/24/2012 | US8162053 Gas lift plunger assembly arrangement |
| 04/24/2012 | CA2667735C Large bore packer and methods of setting same |
| 04/24/2012 | CA2533640C Expandable tubulars for use in geologic structures, methods for expanding tubulars, and methods of manufacturing expandable tubulars |
| 04/24/2012 | CA2483174C Drill string shutoff valve |
| 04/24/2012 | CA2476515C Electromagnetic borehole telemetry system incorporating a conductive borehole tubular |
| 04/19/2012 | WO2012051530A2 Tubing grab assembly |
| 04/19/2012 | WO2012051338A1 Systems and methods for installing geothermal energy transfer loops |
| 04/19/2012 | WO2012049508A1 Armoured cable for down hole electrical submersible pump |
| 04/19/2012 | WO2012049353A1 Drill assembly |
| 04/19/2012 | WO2012048535A1 Connection structure for insulated oil pipe |
| 04/19/2012 | WO2012048458A1 Assembled drilling tool |
| 04/19/2012 | US20120090854 Pressure bearing wall and support structure therefor |
| 04/19/2012 | US20120090827 Non-contact capacitive datalink for a downhole assembly |
| 04/19/2012 | CA2814390A1 Apparatus and methods for orienting, stabilising or stably operating a logging tool |
| 04/19/2012 | CA2814141A1 A down-the-hole hammer |
| 04/19/2012 | CA2813023A1 Tubing grab assembly |
| 04/19/2012 | CA2811110A1 Marine subsea assemblies |
| 04/19/2012 | CA2810248A1 Marine subsea free-standing riser systems and methods |
| 04/18/2012 | EP2441997A1 A pipe coupling |
| 04/18/2012 | EP2440790A2 Improved spline stress distribution |
| 04/18/2012 | EP2440739A2 Dual rotary centralizer for a borehole |
| 04/18/2012 | EP2440738A2 Connection between a drill pipe and a connector |
| 04/18/2012 | EP2440737A2 Device for connecting electrical lines for boring and production installations |
| 04/18/2012 | EP2440736A2 Device for determining the length of a set of boring rods |
| 04/18/2012 | EP1838947B1 Centraliser |
| 04/18/2012 | CN202194623U 复合油管完井管串组合结构 Composite pipe tubing completion string composite structures |
| 04/18/2012 | CN202194588U 一种钻杆 One kind of drill |
| 04/18/2012 | CN202194587U 液动旋转套管引鞋 Hydraulic rotary casing guide shoe |
| 04/18/2012 | CN202194586U 新型光杆扶正装置 The new light pole righting device |
| 04/18/2012 | CN202194585U 油管防偏磨装置 Anti-bias tubing mill equipment |
| 04/18/2012 | CN202194584U 防偏磨钢球扶正器 Anti-bias ball mill centralizer |
| 04/18/2012 | CN202194583U 自设连接结构的空心抽油杆 Own hollow rod connecting structure |
| 04/18/2012 | CN202194582U Sleeve for being connected with drill |
| 04/18/2012 | CN202194570U Separating directional adapter assembly for oil exploration |
| 04/18/2012 | CN202194559U Drilling system used for superficial layer drilling |
| 04/18/2012 | CN202194555U 上背式全回转旋挖钻机 Full-swing on the back of rotary drilling rig |
| 04/18/2012 | CN1944953B Method and apparatus for determining position in a pipe |
| 04/18/2012 | CN102421987A 制造用于钻探和操作油气井的螺纹连接部的套件以及生成的螺纹连接部 Operations for drilling and producing oil and gas wells and a threaded portion threaded connection kit generated |
| 04/18/2012 | CN102421986A 可插入管状钻柱部件的中心腔的保持装置和管状钻柱部件 Can be inserted into the central cavity of the tubular drill string member of the drill string holding means and the tubular member |
| 04/18/2012 | CN102421985A Riser buoyancy adjustable thrust column |
| 04/18/2012 | CN102418512A Flexible insulation short section |
| 04/18/2012 | CN102418500A 直控式连续定量分层配产油管柱 Direct-controlled continuous quantitative hierarchical production tubing string with |
| 04/18/2012 | CN102418498A 助抽器 Help pumping device |
| 04/18/2012 | CN102418482A 修井用油钻管 Workover oil drill pipe |
| 04/18/2012 | CN102418481A 一种等径自动定心式快速隔水管连接器 One kind of equal diameter self-centering type fast riser connector |
| 04/18/2012 | CN102418477A 矿井瓦斯抽放钻杆直线钻进器及其操作方法 Mine gas drainage drilling drill straight line and its method of operation |
| 04/18/2012 | CN101760022B 石油抽油杆扶正器材料的尼龙66组合物 Nylon 66 oil rod stabilizer composition of the material |