| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
|---|
| 03/18/2009 | CN201209406Y Roofbolt drill rod |
| 03/18/2009 | CN101387194A Anchoring string for oil production string of hydraulic screw pump |
| 03/18/2009 | CN101387188A Suppressing vibration method for marine riser vortex-induced vibration and suppressing vibration apparatus thereof |
| 03/18/2009 | CN101387187A Bionic non-smooth spiral drill |
| 03/17/2009 | US7503391 Tieback connector |
| 03/17/2009 | CA2510435C Connector assembly useful with a downhole tool |
| 03/12/2009 | WO2009032729A1 Methods and apparatus for high-speed telemetry while drilling |
| 03/12/2009 | WO2009030926A2 A downhole device |
| 03/12/2009 | WO2009030925A2 A downhole assembly |
| 03/12/2009 | WO2009013434A3 Device for extracting a material from the bed of a body of water and associated method |
| 03/12/2009 | WO2008144249A4 Expandable centralizer for expandable pipe string |
| 03/12/2009 | WO2008122416A4 Rod coupling comprising a sacrificial element |
| 03/12/2009 | WO2008107559A3 Flexible riser pipe installation for conveying hydrocarbons |
| 03/12/2009 | US20090065224 Rock drilling tool |
| 03/12/2009 | DE202008016059U1 Preventer Preventer |
| 03/12/2009 | CA2735967A1 A downhole device |
| 03/12/2009 | CA2735963A1 A downhole assembly |
| 03/12/2009 | CA2697539A1 Oilfield tubular connection with increased compression capacity |
| 03/11/2009 | EP2032794A1 Top filling tubing |
| 03/11/2009 | EP2032792A1 Multi-sectional percussive drill bit assembly |
| 03/11/2009 | EP1937930B1 Separating device |
| 03/11/2009 | EP1692424B1 Improvement of resistance to fatigue of a threaded tubular connection |
| 03/11/2009 | CN201206441Y Bolt guiding and righting fittings |
| 03/11/2009 | CN201206440Y Rolling anti-jumping centralizer for screw pump |
| 03/11/2009 | CN201206439Y Reversing proof, bias-grinding proof and aid-pumping centralizer for sucker rod of screw pump |
| 03/11/2009 | CN201206438Y Single-sheet type centralizer for single-bending screw |
| 03/11/2009 | CN201206437Y Double-layer tubing coupling |
| 03/11/2009 | CN201206436Y Power transmission mechanism for rotary drill rig |
| 03/11/2009 | CN201206429Y Punch special for sand area |
| 03/11/2009 | CN201206425Y Anti-oblique make-up of string suitable for bad ground |
| 03/11/2009 | CN101382043A Combined drill for drilling with casing |
| 03/10/2009 | US7500518 Top drive swivel apparatus and method |
| 03/05/2009 | WO2009029800A1 Apparatus and method for drilling wellbores that utilize a detachable reamer |
| 03/05/2009 | WO2009027309A1 Method for improving fatigue resistance of a threaded joint |
| 03/05/2009 | WO2009011594A3 Method and device for cleaning and sealing a well |
| 03/05/2009 | US20090060646 Manual Breech Lock Wireline Connector |
| 03/05/2009 | US20090057029 Stripper rubber retracting connection system |
| 03/05/2009 | US20090057028 Downhole Draw Down Pump and Method |
| 03/05/2009 | CA2686248A1 Method for improving fatigue resistance of a threaded joint |
| 03/04/2009 | EP2029856A1 Autonomous shut-off valve system |
| 03/04/2009 | CN201202582Y Liquid drive turbo for downhole electric generating set |
| 03/04/2009 | CN201202465Y Layered test flowmeter vibration damper |
| 03/04/2009 | CN201202447Y Composite concentric tube column for liquor drainage gas production process |
| 03/04/2009 | CN201202419Y Well head centralizer |
| 03/04/2009 | CN201202418Y Self-locking type hydraulic casing tube centralizer |
| 03/04/2009 | CN201202417Y Bias-wearing-proof multiple-angle adjustable centralizer of pumping rod |
| 03/04/2009 | CN201202416Y Drop-proof pin of fracture external cylinder body of boring tool vibration damper |
| 03/04/2009 | CN201202415Y Structure for connecting lower joint and oil cylinder of boring tool vibration damper |
| 03/04/2009 | CN201202414Y Oil conduit thread buckle sealing ring |
| 03/04/2009 | CN201202413Y Drill rod joint with good anti-torque performance |
| 03/04/2009 | CN201202412Y Expansion screwed joint for expansion screen tube |
| 03/04/2009 | CN201202411Y Low helical abrasion-proof drill rod for mash gas pumping drilling construction |
| 03/04/2009 | CN201202398Y High strength air hammer drill connecting apparatus for gas drilling |
| 03/04/2009 | CN101377121A Underwater flexible apparatus for sea well drilling |
| 03/04/2009 | CN101377120A Sea underwater hydraulic connector |
| 03/04/2009 | CN101376970A Surface conditioning solution used before manganese series phosphating, preparation and use |
| 03/04/2009 | CN101376946A Steel for 110ksi steel grade straight welding petroleum casing pipe, casing tube and manufacturing method |
| 03/04/2009 | CN101376943A Steel for 80ksi steel grade straight welding petroleum casing pipe, casing tube and manufacturing method |
| 03/04/2009 | CA2639118A1 Hybrid retainer sleeve for tool inserted into block |
| 03/03/2009 | US7498509 Composite coiled tubing end connector |
| 03/03/2009 | US7497264 Multilateral production apparatus and method |
| 02/26/2009 | WO2008015540A8 Articulated extraction pipe |
| 02/26/2009 | US20090050375 Steerable drill bit arrangement |
| 02/26/2009 | US20090050330 Riser Pipe with Auxiliary Lines Mounted on Journals |
| 02/25/2009 | EP2028402A1 Method for improving fatigue resistance of a threaded joint |
| 02/25/2009 | EP2027365A2 Measurement while drilling tool with interconnect assembly |
| 02/25/2009 | EP2027357A2 Expandable downhole tool |
| 02/25/2009 | EP1761680B1 Improved well servicing tool storage system for subsea well intervention |
| 02/25/2009 | CN201198740Y Wireless centralizer following with drill |
| 02/25/2009 | CN201198739Y Petroleum drill rod joint with higher anti-twisting strength |
| 02/24/2009 | US7493960 Apparatus and method to connect two parts without rotation |
| 02/24/2009 | US7493959 Joining tubular members |
| 02/24/2009 | US7493950 Device for a long well tool |
| 02/24/2009 | US7493949 Flow through subassembly for a downhole drill string and method for making same |
| 02/24/2009 | US7493948 Wellbore consolidating tool for rotary drilling applications |
| 02/24/2009 | CA2376963C Method of creating a weld in a wellbore |
| 02/24/2009 | CA2331452C Hybrid riser for deep water |
| 02/19/2009 | WO2009023222A2 Buoyancy tensioning systems for offshore marine risers and methods of use |
| 02/19/2009 | WO2009022912A1 Device and method for attaching cables to elongated members |
| 02/19/2009 | WO2009022116A1 Drill bit gauge pad control |
| 02/19/2009 | WO2009022115A1 System and method for controlling a drilling system for drilling a borehole in an earth formation |
| 02/19/2009 | WO2009022114A1 System and method for directionally drilling a borehole with a rotary drilling system |
| 02/19/2009 | WO2008094106A8 Rock drilling equipment and a method in association with same |
| 02/19/2009 | WO2008056185A3 Hybrid riser tower and methods of installing same |
| 02/19/2009 | US20090048028 Sealing Element and a Coupling Device Provided with Such a Sealing Element |
| 02/19/2009 | US20090044954 Method for Transporting Multiphase Fluids |
| 02/19/2009 | US20090044950 Buoyancy tensioning systems for offshore marine risers and methods of use |
| 02/19/2009 | CA2694858A1 System and method for controlling a drilling system for drilling a borehole in an earth formation |
| 02/19/2009 | CA2694857A1 System and method for directionally drilling a borehole with a rotary drilling system |
| 02/18/2009 | EP2024600A1 Consumable downhole tools |
| 02/18/2009 | CN201196036Y Roller type centralizer for continuous oil pipe |
| 02/18/2009 | CN201196035Y Casing tube roller centralizer |
| 02/18/2009 | CN201196034Y Improved plug-in type sucker rod centralizer |
| 02/18/2009 | CN201196033Y Self-rotating bias wearing-proof centralizer |
| 02/18/2009 | CN201196032Y Improved anti-falling apparatus for drilling tool transmission shaft |
| 02/18/2009 | CN201196031Y Special sand blasting protection thread for pipe screw |
| 02/18/2009 | CN201196030Y Special spray coating protection thread for oil tube sealing surface |
| 02/18/2009 | CN201196029Y Security protection apparatus of pumping rod |
| 02/18/2009 | CN201196028Y Composite silicate heat preservation structure used on thick oil thermal production steam pipe |
| 02/17/2009 | US7490680 Process and system for drilling and lining a bore hole |