| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 06/06/2002 | US20020066561 Controlling Production |
| 06/06/2002 | US20020066558 Tubular filling system |
| 06/06/2002 | DE10058385A1 Adapter for drill drive, in particular to be used in mining or tunneling, comprising ring-shaped space serving as duct for rinsing and cooling fluid |
| 06/05/2002 | EP1211451A1 Threaded joint for oil well pipe |
| 06/05/2002 | EP1210497A1 Bit connector |
| 06/04/2002 | US6399708 Grafted and crosslinkable pulverulent thermoplastic polyolefin composition which has elasticity and flexibility properties |
| 06/04/2002 | US6397951 Marine riser and method of use |
| 06/04/2002 | US6397950 Apparatus and method for removing a frangible rupture disc or other frangible device from a wellbore casing |
| 05/30/2002 | WO2002042605A1 Method of and system for controlling directional drilling |
| 05/30/2002 | WO2002042599A1 Marine riser system |
| 05/30/2002 | WO2002016724A3 Expandable coupling |
| 05/30/2002 | WO2001098621A3 Centraliser |
| 05/30/2002 | US20020062965 Wellhead assembly for accessing an annulus in a well and a method for its use |
| 05/30/2002 | US20020062964 Method and apparatus for injecting a fluid into a well |
| 05/29/2002 | EP1105581A4 Marine riser having variable buoyancy |
| 05/29/2002 | EP0922153B1 A drill pipe |
| 05/29/2002 | CN2493736Y Drillable stabilizer |
| 05/28/2002 | US6394702 Emergency dump apparatus for buoyancy air tanks on buoyant riser systems |
| 05/28/2002 | US6394201 Tubing spider |
| 05/28/2002 | US6394199 Non-circular gauge reaming row inserts |
| 05/28/2002 | US6394198 Frictional vibration damper for downhole tools |
| 05/28/2002 | US6394190 Corrosion-resistant thread joint for percussion drill element and method of achieving such resistance |
| 05/28/2002 | US6394186 Apparatus for remote adjustment of drill string centering to prevent damage to wellhead |
| 05/28/2002 | US6394184 Method and apparatus for stimulation of multiple formation intervals |
| 05/23/2002 | WO2002040823A1 Adjustable stabiliser for directional drilling |
| 05/23/2002 | WO2002040822A1 Surface-actuated release tool for submersible pump assemblies and releasing method |
| 05/23/2002 | WO2002040821A1 Protective element for a riser segment |
| 05/23/2002 | US20020060313 Corrosion inhibitors |
| 05/23/2002 | US20020060095 Drill bit for directional drilling |
| 05/23/2002 | US20020060077 Hybrid riser or pipe for fluid transfer |
| 05/23/2002 | US20020060069 Forming a wellbore casing while simultaneously drilling a wellbore |
| 05/23/2002 | US20020060068 Forming a wellbore casing while simultaneously drilling a wellbore |
| 05/22/2002 | EP1206623A1 Anti-rotation device for use with well tools |
| 05/22/2002 | EP0877701B1 System for production of hydrocarbons |
| 05/21/2002 | US6392317 Annular wire harness for use in drill pipe |
| 05/21/2002 | US6392151 Fiber optic well logging cable |
| 05/21/2002 | US6390212 Drill bit (b) |
| 05/21/2002 | US6390193 Downhole connector for production tubing and control line and method |
| 05/21/2002 | US6390190 Tubular filling system |
| 05/21/2002 | US6390087 Drill bit for directional drilling |
| 05/21/2002 | CA2045927C Advanced activation and measurement device used during production of non eruptive wells |
| 05/16/2002 | WO2002038910A2 Integrated modular connector in a drill pipe |
| 05/16/2002 | WO2002038907A2 Knuckle-swivel for drilling wells |
| 05/16/2002 | WO2001098619A3 Drive system |
| 05/16/2002 | US20020056574 Stabilizer for use in a drill string |
| 05/16/2002 | US20020056572 Downhole drilling apparatus and method for use of same |
| 05/15/2002 | EP1205628A1 A grease tube |
| 05/15/2002 | EP1204807A1 Device and method for maintaining and guiding a riser, and method for transferring a riser onto a floating support |
| 05/15/2002 | EP1204806A1 Floating support comprising a central cavity including a plurality of sections |
| 05/15/2002 | EP1066450B1 Threaded assembly of metal tubes designed to contain a corrosive fluid |
| 05/15/2002 | EP0746666B1 Fluid-tight connecting apparatus |
| 05/15/2002 | CN2491600Y Anti-dropping wax cleaner for sucker rod |
| 05/14/2002 | US6386290 System for accessing oil wells with compliant guide and coiled tubing |
| 05/14/2002 | CA2145130C Method for running downhole tools and devices with coiled tubing |
| 05/14/2002 | CA2055291C Disc drill bit |
| 05/10/2002 | WO2002037015A1 Coupling apparatus |
| 05/10/2002 | WO2002036925A1 Drilling tool |
| 05/10/2002 | WO2002036924A2 Rotary steerable drilling tool and method for directional drilling |
| 05/10/2002 | WO2002036923A2 Casing drilling connector with low stress flex groove |
| 05/10/2002 | WO2001033032A9 Disconnectable and reconnectable wet connector |
| 05/10/2002 | CA2718929A1 Coupling apparatus |
| 05/09/2002 | US20020054972 For hardbanding of tool joints or sections of steel pipe used for drilling wells in the oil and gas industry |
| 05/09/2002 | US20020054789 Marine riser |
| 05/09/2002 | US20020053471 Intergrated transmitter surveying while boring entrenching powering device for the continuation of a guided bore hole |
| 05/09/2002 | US20020053470 Rotary steerable drilling tool |
| 05/09/2002 | US20020053439 Sand screen with communication line conduit |
| 05/09/2002 | US20020053427 Tubular filling system |
| 05/08/2002 | EP1203909A2 Two-step threaded connector with differential flank clearance |
| 05/08/2002 | EP1203177A1 Expandable joint connector |
| 05/08/2002 | EP1058767B1 Centralizer |
| 05/08/2002 | DE10054659A1 Pipe laying machine, includes boring and inner drilling tubes with screw conveyors for rotary and percussion drilling |
| 05/08/2002 | CN2490308Y Local double assembling casing joint |
| 05/08/2002 | CN2490307Y Sucker rod for screw pump |
| 05/07/2002 | US6382333 Friction reducing tool for oilfield drilling applications |
| 05/07/2002 | US6382324 One trip seal latch system |
| 05/07/2002 | CA2064838C Production pipe having an integrated hydraulic line |
| 05/02/2002 | WO2002035128A2 Threaded pipe joint |
| 05/02/2002 | WO2002035055A1 Combined milling and scraping tool |
| 05/02/2002 | WO2002035048A1 Solid-state inertial navigation control system for a horizontal drilling machine |
| 05/02/2002 | WO2000043632A9 System with a compliant guide and method for inserting a coiled tubing into an oil well |
| 05/02/2002 | US20020050362 Guide tube of a drill string configured to facilitate unscrewing thereof from a member of the drill string |
| 05/02/2002 | US20020050360 Forming a wellbore casing while simultaneously drilling a wellbore |
| 05/02/2002 | EP1201875A2 Downhole tool |
| 05/02/2002 | EP1200708A2 Apparatus for optimizing production of multi-phase fluid |
| 05/02/2002 | EP1200704A1 Threaded pipe connection |
| 05/02/2002 | EP1200703A1 Gas lift umbilical cable and termination assemblies therefor |
| 05/02/2002 | EP1019650A4 Improved composite drill pipe |
| 05/02/2002 | EP0941200B1 Method and apparatus for disconnecting and retrieving multiple risers attached to a floating vessel |
| 05/02/2002 | EP0685603B1 Multi-shaft excavating device |
| 04/30/2002 | US6378633 Drill pipe protector assembly |
| 04/30/2002 | US6378630 Locking swivel device |
| 04/30/2002 | US6378629 Boring apparatus |
| 04/30/2002 | US6378627 Autonomous downhole oilfield tool |
| 04/30/2002 | US6378610 Communicating with devices positioned outside a liner in a wellbore |
| 04/25/2002 | WO2002033212A1 Cement shoe assembly for monobore well |
| 04/25/2002 | US20020048492 Installation for producing oil from an off-shore deposit and process for installing a riser |
| 04/25/2002 | US20020046882 Irregular surface drill rod for a directional drilling machine |
| 04/25/2002 | US20020046841 Active apparatus and method for reducing fluid induced stresses by introduction of energetic flow into boundary layer around an element |
| 04/25/2002 | DE10061071C1 Shaft for transfer of torque or impact force for hammer drill has open channel provided with widened contour leading to hammer surface |
| 04/25/2002 | CA2756623A1 Cement shoe assembly for monobore well |