| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
|---|
| 02/24/2005 | US20050039910 Expandable tubes with overlapping end portions |
| 02/24/2005 | CA2535817A1 Expandable tubular |
| 02/23/2005 | EP1508665A1 Earth working apparatus for drilling and planting |
| 02/23/2005 | EP1303681A4 Well management system |
| 02/23/2005 | EP1282757A4 Subsea riser disconnect and method |
| 02/23/2005 | CN2680843Y Mechanical casing drive head for casing drilling |
| 02/23/2005 | CN2680842Y Hydraulic casing drive head for casing drilling |
| 02/23/2005 | CN1584279A Sucker rod with carbon fibre and glass fibre mixed pultrusion and pultrusion forming method |
| 02/23/2005 | CN1583930A Well casing burnt-on sand combing glue |
| 02/22/2005 | US6857822 Riser system employing a tensioning mechanism |
| 02/22/2005 | US6857487 Drilling with concentric strings of casing |
| 02/22/2005 | US6857486 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles |
| 02/22/2005 | US6857484 Steering tool power generating system and method |
| 02/22/2005 | US6857452 Composite spoolable tube |
| 02/22/2005 | CA2462987C Vibration-dampening drill collar |
| 02/22/2005 | CA2167491C Safeguarded method and apparatus for fluid communication using coiled tubing, with application to drill stem testing |
| 02/17/2005 | WO2005003506A3 Method of deploying and powering an electrically driven device in a well |
| 02/17/2005 | WO2004022903A3 Top drive swivel apparatus and method |
| 02/17/2005 | WO2003035801A3 Producing hydrocarbons and non-hydrocarbon containing materials from a hydrocarbon containing formation |
| 02/17/2005 | US20050034900 Drill string tool with bearing sleeve |
| 02/17/2005 | US20050034896 Pipe burying method |
| 02/17/2005 | US20050034853 Top drive swivel apparatus and method |
| 02/16/2005 | EP1269059B1 Fatigue-resistant threaded bevelled tubular element |
| 02/16/2005 | CN2679345Y Sucker rod centralizer |
| 02/16/2005 | CN2679344Y Bit with combined connection hole |
| 02/16/2005 | CN1580482A Hydraulic mounting pliers of portable pumping-rod centralizer |
| 02/15/2005 | US6854933 Vertically restrained centerwell SPAR |
| 02/15/2005 | US6854930 Underwater pipeline connection joined to a riser |
| 02/15/2005 | US6854534 Two string drilling system using coil tubing |
| 02/15/2005 | US6854532 Subsea wellbore drilling system for reducing bottom hole pressure |
| 02/15/2005 | US6854516 Riser buoyancy system |
| 02/10/2005 | WO2005003504A3 System, method and apparatus for securing control lines to a well pipe |
| 02/10/2005 | US20050029812 Expandable slotted tubing string and method for connecting such a tubing string |
| 02/10/2005 | US20050029017 Well string assembly |
| 02/10/2005 | US20050029016 Coupling for dual member pipe |
| 02/10/2005 | US20050028988 Radial expansion of tubular members |
| 02/10/2005 | US20050028986 Latch-type tubing protector having C-shaped clamping members, a minimized running profile and a large holding force |
| 02/09/2005 | EP1505248A2 Interconnecting well tool assemblies |
| 02/09/2005 | EP1374345B1 Wet mateable connector |
| 02/09/2005 | CN2677595Y Lifting hydraulic cartridge container hanger |
| 02/09/2005 | CN2677588Y Automatic offset centering guide |
| 02/09/2005 | CN2677587Y Base sealing type simple casing joint |
| 02/09/2005 | CN2677586Y Quick joint for oil pipe |
| 02/09/2005 | CN2677585Y Screw suspension support type polish rod for pumping well |
| 02/09/2005 | CN2677578Y Square bushing device |
| 02/09/2005 | CN1188687C Method of testing pipe thread adaptor inner / external screw thread surface contact status distribution |
| 02/08/2005 | US6851489 Method and apparatus for drilling wells |
| 02/08/2005 | US6851481 Electro-hydraulically pressurized downhole valve actuator and method of use |
| 02/08/2005 | US6851472 Convertible tubular scraper |
| 02/08/2005 | US6851471 Perforating gun |
| 02/03/2005 | WO2005009834A2 Tendon assembly for mooring offshore structure |
| 02/03/2005 | US20050025578 Rock anchor |
| 02/03/2005 | US20050024231 Apparatus and methods for self-powered communication and sensor network |
| 02/03/2005 | US20050023831 Tubing joint of multiple orientations containing electrical wiring |
| 02/03/2005 | US20050023739 Shock absorbing and shock force generating apparatus and method for an oil pump |
| 02/03/2005 | US20050022999 Rod and tubing joint of multiple orientations containing electrical wiring |
| 02/02/2005 | EP1502002A2 Well completion with merged influx of well fluids |
| 02/02/2005 | EP1501999A1 Seafloor/surface connecting installation for a submarine pipeline which is connected to a riser by means of at least one elbow pipe element that is supported by a base |
| 02/02/2005 | EP1501645A2 Protective sleeve for threaded connections for expandable liner hanger |
| 02/02/2005 | EP1501644A2 Protective sleeve for threaded connections for expandable liner hanger |
| 02/02/2005 | CN2675843Y Centralizing type adjustable tie-back sleeve |
| 02/02/2005 | CN1575377A Forming openings in a hydrocarbon containing formation using magnetic tracking |
| 02/02/2005 | CN1575376A In situ recovery from a hydrocarbon containing formation using barriers |
| 02/02/2005 | CN1575375A In situ updating of coal |
| 02/02/2005 | CN1575374A Seismic monitoring of in situ conversion in a hydrocarbon containing formation |
| 02/02/2005 | CN1575373A In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well |
| 02/01/2005 | US6848863 Engineered material buoyancy system and device |
| 02/01/2005 | US6848518 Steerable underreaming bottom hole assembly and method |
| 02/01/2005 | CA2246670C System for production of hydrocarbons |
| 01/27/2005 | WO2005008028A1 Electrical imaging in conductive and non-conductive mud |
| 01/27/2005 | WO2005008026A1 Connector for perforating gun tandem |
| 01/27/2005 | WO2005007993A2 Systems and methods for the installation of earth anchors |
| 01/27/2005 | WO2004093097A3 A disconnection device for a wireline |
| 01/27/2005 | WO2004020775A3 Method and apparatus for removing cuttings |
| 01/27/2005 | WO2004010039B1 Protective sleeve for threaded connections for expandable liner hanger |
| 01/27/2005 | US20050016728 Perforating gun quick connection system |
| 01/27/2005 | US20050015963 Protective sleeve for threaded connections for expandable liner hanger |
| 01/27/2005 | CA2532134A1 Open hole tractor with tracks |
| 01/26/2005 | CN2674070Y Anti-erroneous wear oil sucking rod centering guide |
| 01/26/2005 | CN2674069Y Actived joint for large curvature sleeve |
| 01/26/2005 | CN2674068Y Oil pipe column constant pressure stretching fixing means |
| 01/26/2005 | CN1572053A Unipolar transversal flux machine has rotor module provided by rotor rings with outer teeth fitted around permanent magnet rings magnetized radially in opposite directions |
| 01/25/2005 | US6845827 Rock drill head |
| 01/25/2005 | US6845826 Saver sub for a steering tool |
| 01/25/2005 | US6845822 Auto-extending/retracting electrically isolated conductors in a segmented drill string |
| 01/25/2005 | US6845820 Completion apparatus and methods for use in hydrocarbon wells |
| 01/25/2005 | US6845819 Down hole tool and method |
| 01/25/2005 | US6845816 ADI centralizer |
| 01/20/2005 | WO2004097155A3 Casing with isolated annular space |
| 01/20/2005 | WO2004095475A3 Control line protector |
| 01/20/2005 | WO2004092633A3 Spoolable composite coiled tubing connector |
| 01/20/2005 | WO2004079151A3 Drilling with casing latch |
| 01/20/2005 | US20050013670 Offshore drilling system comprising a high-pressure riser |
| 01/20/2005 | US20050012278 Metal sleeve seal for threaded connections |
| 01/20/2005 | US20050011650 Method and apparatus for expanding and separating tubulars in a wellbore |
| 01/20/2005 | US20050011643 Wear resistant tubular connection |
| 01/20/2005 | US20050011290 Insertion tube methods and apparatus |
| 01/19/2005 | EP1497526A2 Bi-directional thruster pig apparatus and method of utilizing same |
| 01/19/2005 | EP1295060B1 Tubular threaded joint capable of being subjected to diametral expansion |
| 01/19/2005 | CN2672276Y Drill pipe joint special for ramming type drilling machine |