| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 03/16/2011 | EP2132474B1 Method for providing an underwater duct comprising hammering the assembly welds inside the duct |
| 03/16/2011 | CN201763318U Wireless centering fishing head while drilling |
| 03/16/2011 | CN201763287U Rope coring safety joint |
| 03/16/2011 | CN201763271U Self-correcting pole pipe wear resistant unit |
| 03/16/2011 | CN201763270U Oil extraction well outlet pipeline with heat insulating device |
| 03/16/2011 | CN201763269U Double-shoulder double-seal surface threaded connector and collar-free oil well pipe adopting same |
| 03/16/2011 | CN201763268U Flexible telescopic device |
| 03/16/2011 | CN201763267U Anti-bending oil sleeve threaded connection structure |
| 03/16/2011 | CN201763266U Kelly roller bushing |
| 03/16/2011 | CN201763265U Underground motor cardan shaft |
| 03/16/2011 | CN201763264U Rotary digging drill and drill rod |
| 03/16/2011 | CN201763263U Anti-C02 corrosion oil casing |
| 03/16/2011 | CN201763262U Lower portion structure of casing string in oil and gas well |
| 03/16/2011 | CN201763261U Wear drill stem for exploring solid ores and drill stem joints |
| 03/16/2011 | CN201763234U Low-energy consumption power head driving sleeve for rotary digging drill |
| 03/16/2011 | CN201763233U Composite type power head driving sleeve for rotary digging drill |
| 03/16/2011 | CN201763232U Cast-in-site tubular pile rotary drilling rig |
| 03/16/2011 | CN101250984B Well-washing sand prevention integrated technique tubular pile |
| 03/15/2011 | CA2665895C Loading system |
| 03/15/2011 | CA2647447C Tubular threaded joint |
| 03/15/2011 | CA2522993C Well string assembly |
| 03/15/2011 | CA2463112C In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well |
| 03/15/2011 | CA2462805C Forming openings in a hydrocarbon containing formation using magnetic tracking |
| 03/14/2011 | CA2677138A1 Downhole flow control apparatus, super-insulated tubulars and surface tools for producing heavy oil by steam injection methods from multi-lateral wells located in cold environments |
| 03/10/2011 | WO2011028467A2 Pull tube sleeve stress joint for floating offshore structure |
| 03/10/2011 | WO2011028432A2 Flexible catenary riser having distributed sag bend ballast |
| 03/10/2011 | WO2011028364A2 Apparatus and method for performing an intervention in a riser |
| 03/10/2011 | WO2011026897A2 Telescopic riser joint |
| 03/10/2011 | US20110056703 Method of Drilling and Running Casing in Large Diameter Wellbore |
| 03/10/2011 | US20110056701 Fluid Connection To Drilling Riser |
| 03/09/2011 | EP2291577A1 Riser support |
| 03/09/2011 | EP2193299B1 Method of installing a tubular undersea pipeline |
| 03/09/2011 | EP1246997B1 Torque reduction tool |
| 03/09/2011 | CN201756923U Variable-pitch special thread oil casing without inner sealing shoulder and outer sealing shoulder |
| 03/09/2011 | CN201756922U Oil casing pipe with single-shoulder sealing variable pitches |
| 03/09/2011 | CN201756921U Coupling-free petroleum casing pipe with variable-pitch buttress threads |
| 03/09/2011 | CN201756920U Variable-taper API threaded oil casing joint |
| 03/09/2011 | CN201756919U Threaded connection structure for operation oil pipe |
| 03/09/2011 | CN201756918U Rotation joint of a horizontal directional driller |
| 03/09/2011 | CN201756917U Production pipe for coal bed gas |
| 03/09/2011 | CN101984191A High pressure jet grouting pile driving machine |
| 03/09/2011 | CN101984124A Corrosion resistant and squeezing resistant casing pipe |
| 03/09/2011 | CN101608282B Drill rod material steel pipe resisting low temperature of -40 to -60 DEG C and manufacturing method thereof |
| 03/08/2011 | US7900719 Bi-steel percussive drill rod |
| 03/08/2011 | US7900718 Earth-boring tools having threads for affixing a body and shank together and methods of manufacture and use of same |
| 03/08/2011 | US7900698 Downhole wet-mate connector debris exclusion system |
| 03/08/2011 | CA2499759C Reverse circulation directional and horizontal drilling using concentric drill string |
| 03/08/2011 | CA2459559C An expandable metal liner for downhole components |
| 03/03/2011 | WO2011025488A1 Casing shoe |
| 03/03/2011 | WO2011025431A1 Drill string component for noise control during percussion drilling |
| 03/03/2011 | WO2011023829A1 A drill bit assembly for fluid-operated percussion drill tools |
| 03/03/2011 | WO2011023557A1 Flexible couplings for tubular members |
| 03/03/2011 | WO2011022814A1 Casing head connector |
| 03/03/2011 | WO2011022804A1 Sucker rod coupling and method of wear prevention in driven rotation of a sucker rod string in production tubing |
| 03/03/2011 | WO2010127128A3 A low friction centralizer |
| 03/03/2011 | WO2010120567A4 Methods for forming boring shoes for wellbore casing, and boring shoes and intermediate structures formed by such methods |
| 03/03/2011 | WO2010106335A3 Downhole drilling assembly |
| 03/03/2011 | WO2010052423A3 Method for installing an operating rig for a fluid in a body of water with a traction unit |
| 03/03/2011 | WO2010052422A3 Method for assembling an operating rig for a fluid in a body of water and associated operating rig |
| 03/03/2011 | US20110048803 Drilling cuttings mobilizer |
| 03/03/2011 | US20110048729 Pull tube sleeve stress joint for floating offshore structure |
| 03/03/2011 | US20110048728 Riser support system |
| 03/03/2011 | US20110048727 Force element arrangement and method |
| 03/03/2011 | DE102009052335A1 Steckkupplung für ein Bohrgestänge und Bohrgestänge Plug-in coupling drill pipe and drill stem |
| 03/03/2011 | CA2772666A1 Sucker rod coupling and method of wear prevention in driven rotation of a sucker rod string in production tubing |
| 03/03/2011 | CA2771199A1 Casing head connector |
| 03/03/2011 | CA2769227A1 Drill string component for noise control during percussion drilling |
| 03/02/2011 | EP2288789A1 Device for extracting a material situated at the bottom of an expanse of water, extraction installation and associated method |
| 03/02/2011 | EP2288781A2 Pipe connector device |
| 03/02/2011 | EP2024600B1 Consumable downhole tools |
| 03/02/2011 | CN201753751U Transmission device |
| 03/02/2011 | CN201753602U Intelligent drilling tool with photoelectric coupling signal transmission |
| 03/02/2011 | CN101187292B Supercritical heat-insulated oil pipe production method |
| 03/01/2011 | US7896624 Method of running a down hole rotary pump |
| 03/01/2011 | US7896110 Shoe |
| 03/01/2011 | US7896090 Stroking tool using at least one packer cup |
| 03/01/2011 | CA2570225C Drilling rig and vibration dampening support frame |
| 03/01/2011 | CA2526345C Method and system for optimizing downhole fluid production |
| 03/01/2011 | CA2462957C In situ thermal processing of a hydrocarbon containing formation and upgrading of produced fluids prior to further treatment |
| 02/28/2011 | CA2707275A1 Drilling cuttings mobilizer |
| 02/24/2011 | WO2011022580A2 Zero backlash downhole setting tool and method |
| 02/24/2011 | WO2011022574A2 Zero backlash downhole setting tool and method |
| 02/24/2011 | WO2011022403A2 Downhole motor bearing assembly with an integrated thrust shock absorber for downhole drilling and method thereof |
| 02/24/2011 | WO2011022332A1 Vortex induced vibration suppression systems and methods |
| 02/24/2011 | WO2011022257A2 Attachment of control lines to outside of tubular |
| 02/24/2011 | WO2011022255A2 Attachment of control lines to outside of tubular |
| 02/24/2011 | WO2010141490A3 Improved spline stress distribution |
| 02/24/2011 | WO2010126971A3 Systems and methods for reducing vortex induced vibrations |
| 02/24/2011 | WO2010126874A3 Systems and methods for installing structures in a body of water |
| 02/24/2011 | WO2010093577A3 Free standing steel catenary risers |
| 02/24/2011 | US20110042106 Centraliser |
| 02/24/2011 | US20110042102 Method of and kit for installing a centralizer on a pipe segment |
| 02/24/2011 | US20110042094 Bottom-to-surface connection installation of a rigid pipe with a flexible pipe having positive buoyancy |
| 02/24/2011 | US20110042069 Coated sleeved oil and gas well production devices |
| 02/24/2011 | DE112008003631T5 Superdichte Gewindeverbindung Super density threaded connection |
| 02/24/2011 | DE102010016484A1 Kupplung für das Verbinden von Ankerstangen Coupling for the connection of the anchor rods |
| 02/24/2011 | CA2770209A1 Attachment of control lines to outside of tubular |
| 02/24/2011 | CA2748808A1 Downhole motor bearing assembly with an integrated thrust shock absorber for downhole drilling and method thereof |
| 02/23/2011 | EP2286056A2 Bed-to-surface connector installation of a rigide tube with a flexible duct having positive flotation |
| 02/23/2011 | EP2286055A1 Cutting windows for lateral wellbore drilling |