| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 06/28/2006 | CN2791236Y Quick-action pressure-testing joint of internal jet-preventing tool |
| 06/28/2006 | CN1793599A Apparatus for connecting branching well window and connecting method thereof |
| 06/27/2006 | US7066284 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 06/27/2006 | US7066283 Reverse circulation directional and horizontal drilling using concentric coil tubing |
| 06/27/2006 | US7066257 In situ recovery from lean and rich zones in a hydrocarbon containing formation |
| 06/27/2006 | US7066253 Casing shoe |
| 06/27/2006 | US7066209 Thread protector |
| 06/22/2006 | WO2006065149A1 A pipe joint lubrication device |
| 06/22/2006 | WO2006037079A9 Apparatus and method for wireline imaging in nonconductive muds |
| 06/22/2006 | WO2005031106A3 Load-resistant coaxial transmission line |
| 06/22/2006 | US20060133893 Fastened assembly body, connector, and hydraulic cylinder unit |
| 06/22/2006 | US20060131027 Device for heating and thermally insulating at least one undersea pipeline |
| 06/21/2006 | EP1488153A4 Wedgethread pipe connection |
| 06/21/2006 | CN2789401Y Weighting drilling rod |
| 06/21/2006 | CN1791762A Tubing and piping for multiphase flow |
| 06/21/2006 | CN1789655A Alarm apparatus for engine lock type drill rod misoperation |
| 06/21/2006 | CN1789654A Oil well oil-pumping tubing |
| 06/20/2006 | US7064676 Downhole data transmission system |
| 06/20/2006 | US7063175 Method and apparatus for retaining a down-hole fluid motor and bit assembly |
| 06/20/2006 | US7063159 Multi-purpose coiled tubing handling system |
| 06/20/2006 | US7063149 Tubing expansion with an apparatus that cycles between different diameter configurations |
| 06/20/2006 | US7063145 Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations |
| 06/20/2006 | CA2346372C Control line connector |
| 06/20/2006 | CA2285008C Electrically actuated disconnect apparatus |
| 06/20/2006 | CA2268597C Process for hydraulically fracturing oil and gas wells utilizing coiled tubing |
| 06/15/2006 | WO2006061513A1 Device for fixing a floating element to a conduit |
| 06/15/2006 | US20060127186 Removal of obsolete drill platforms from inland seas and ocean floors |
| 06/15/2006 | US20060124363 Steerable drill bit arrangement |
| 06/15/2006 | US20060124352 Control systems and methods for active controlled bottomhole pressure systems |
| 06/15/2006 | US20060124319 Completion apparatus and methods for use in wellbores |
| 06/15/2006 | US20060124317 Multi-cycle downhole tool with hydraulic damping |
| 06/15/2006 | US20060124308 Downhole oilfield tubulars |
| 06/15/2006 | US20060124297 System and Method for Communicating Along a Wellbore |
| 06/15/2006 | US20060124296 Hyraulically releasable inflation tool for permanent bridge plug |
| 06/15/2006 | US20060124291 Auto-extending/retracting electrically isolated conductors in a segmented drill string |
| 06/14/2006 | EP1668220A1 Method and device for boring holes in soil or rock |
| 06/14/2006 | EP1668219A1 Steerable bit assembly and methods |
| 06/14/2006 | CN2788160Y Automatic load-elevating sensor |
| 06/14/2006 | CN2787821Y Installing stub for square drill rod |
| 06/14/2006 | CN2787817Y Casing guide shoe |
| 06/14/2006 | CN2787816Y Rigid centralizer |
| 06/14/2006 | CN2787815Y Rigid vortex centralizer |
| 06/14/2006 | CN1788138A Device for rock bolting and for automized rock bolting and rock bolting method |
| 06/13/2006 | US7062413 Oilfield equipment identification method and apparatus |
| 06/13/2006 | US7059881 Spoolable composite coiled tubing connector |
| 06/13/2006 | US7059430 Hydro-lifter rock bit with PDC inserts |
| 06/13/2006 | US7059429 Drilling assembly and method |
| 06/13/2006 | US7059416 Buoyancy can for offshore oil and gas riser |
| 06/13/2006 | US7059407 Method and apparatus for stimulation of multiple formation intervals |
| 06/08/2006 | WO2006060788A2 Downhole swivel apparatus and method |
| 06/08/2006 | WO2006060290A2 Locking dog and locking pin assembly for use therewith |
| 06/08/2006 | WO2006059158A1 Cables |
| 06/08/2006 | WO2006059157A1 Cables |
| 06/08/2006 | US20060120809 Method and crane for installing, maintaining and decommissioning wind turbines |
| 06/08/2006 | US20060120797 Connection device |
| 06/08/2006 | US20060118340 Thread joint for a drill string for percussive rock-drilling |
| 06/08/2006 | US20060118337 System for use in a bore hole for axially coupling a tubular end and a mandrel |
| 06/08/2006 | US20060118298 Wellstring assembly |
| 06/08/2006 | US20060118297 Downhole tool shock absorber |
| 06/08/2006 | US20060118296 Well device for throttle regulation of inflowing fluids |
| 06/08/2006 | CA2587801A1 Cables |
| 06/08/2006 | CA2587512A1 Cables |
| 06/07/2006 | EP1664483A2 Downhole draw down pump and method |
| 06/07/2006 | EP1664477A1 Locking device for built pipe connections |
| 06/07/2006 | EP1664475A2 Load-resistant coaxial transmission line |
| 06/07/2006 | EP1581721B1 Communication system for down hole use |
| 06/07/2006 | EP1556578B1 Method and apparatus for installing control lines in a well |
| 06/07/2006 | EP1328701B1 System, method and apparatus for deploying a data resource within a threaded pipe coupling |
| 06/07/2006 | EP1093540A4 Method and multi-purpose apparatus for control of fluid in wellbore casing |
| 06/07/2006 | CN2786271Y Centralizer arranged on hollow sucker rod joint stub |
| 06/07/2006 | CN2786270Y Self-lubricating paraffin control wearable sucker rod assembly |
| 06/07/2006 | CN1784533A Stabilising band for a roller assembly |
| 06/07/2006 | CN1258634C Join hoop type centralizer of sucker rod |
| 06/06/2006 | US7055631 Drill pipe protector |
| 06/06/2006 | US7055621 Method and apparatus for replacement of underground pipe |
| 06/06/2006 | US7055600 In situ thermal recovery from a relatively permeable formation with controlled production rate |
| 06/06/2006 | US7055592 Toroidal choke inductor for wireless communication and control |
| 06/06/2006 | CA2396822C Bi-directional grip mechanism for a wide range of bore sizes |
| 06/06/2006 | CA2306656C Expandable connector for borehole tubes |
| 06/06/2006 | CA2173080C Field installed slotted rod guide and method |
| 06/06/2006 | CA2144504C Casing centraliser |
| 06/01/2006 | WO2006058055A2 Control line guide and method of using same |
| 06/01/2006 | WO2006056010A1 Induction-hardened drill string components |
| 06/01/2006 | WO2005091911A3 Multiple distributed pressure measurements |
| 06/01/2006 | US20060113100 Electrical hand tool with a position adjustable battery pack |
| 06/01/2006 | US20060113088 Expandable composite tubulars |
| 06/01/2006 | US20060113086 Protective sleeve for expandable tubulars |
| 06/01/2006 | US20060113085 Dual well completion system |
| 06/01/2006 | US20060113079 Production of natural gas from hydrates |
| 05/31/2006 | EP1660795A1 Improved seal |
| 05/31/2006 | CN2784574Y Rotary centralizer for sucker rod |
| 05/31/2006 | CN2784573Y Abrasion reducing joint |
| 05/31/2006 | CN2784572Y Corrosion-proof and thread-off preventing device |
| 05/30/2006 | US7053788 Transducer for downhole drilling components |
| 05/30/2006 | US7052049 Rod linkage |
| 05/30/2006 | US7051821 Adjustable hole cleaning device |
| 05/30/2006 | US7051818 Three in one combined power unit for nitrogen system, fluid system, and coiled tubing system |
| 05/30/2006 | US7051808 Seismic monitoring of in situ conversion in a hydrocarbon containing formation |
| 05/30/2006 | US7051807 In situ thermal recovery from a relatively permeable formation with quality control |
| 05/30/2006 | US7051806 Internal slip connector |