| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 07/07/2005 | CA2549527A1 Non-threaded expandable pipe connection system |
| 07/06/2005 | EP1550788A2 Three dimensional steerable system |
| 07/06/2005 | EP1549821A1 Pipe centralizer and method of forming |
| 07/06/2005 | EP1549820A1 Apparatus and method for transmitting a signal in a wellbore |
| 07/06/2005 | CN2707956Y Sucker rod turning gear |
| 07/06/2005 | CN2707944Y Pipe string grappling device for fixed point pressure measurement rod-pumped well |
| 07/06/2005 | CN2707941Y Casing centralizer |
| 07/06/2005 | CN2707940Y Locking segment type connecting-tripping device |
| 07/06/2005 | CN1636108A In situ thermal processing of a hydrocarbon containing formation and improvement of won fluid before further processing |
| 07/06/2005 | CN1636106A Two string drilling system |
| 07/06/2005 | CN1635260A Long spiral telescopic drill pipe capable of conveying concrete |
| 07/05/2005 | US6913093 Loaded transducer for downhole drilling components |
| 07/05/2005 | CA2334926C Drill rod coupling |
| 07/05/2005 | CA2269145C Downhole universal joint assembly |
| 07/05/2005 | CA2260657C Internal coiled tubing connection with torque capability |
| 06/30/2005 | WO2005059422A1 Improvement of resistance to fatigue of a threaded tubular connection |
| 06/30/2005 | WO2005059298A1 A telescopic data coupler |
| 06/30/2005 | WO2005059296A2 Side entry sub hydraulic wireline cutter |
| 06/30/2005 | US20050139613 Fluid dispenser assembly |
| 06/30/2005 | US20050138790 Method and apparatus for forming a mono-diameter wellbore casing |
| 06/29/2005 | EP1548227A1 Disposable locking mechanism |
| 06/29/2005 | EP1546504A1 Drill rod and method in order to manufacture the same |
| 06/28/2005 | US6910533 Mechanism that assists tractoring on uniform and non-uniform surfaces |
| 06/28/2005 | CA2358288C A wet connect/disconnect and reconnect apparatus and method |
| 06/23/2005 | WO2005056976A1 Production of natural gas from hydrates |
| 06/23/2005 | WO2005056973A1 Coiled tubing connector and method of manufacture |
| 06/23/2005 | US20050133274 Drilling with concentric strings of casing |
| 06/23/2005 | US20050133269 Adjustabel hole cleaning device |
| 06/23/2005 | US20050133227 Side entry sub hydraulic wireline cutter |
| 06/23/2005 | US20050133223 Expandable tubular connection |
| 06/23/2005 | US20050133217 Hyraulically releasable inflation tool for permanent bridge plug |
| 06/23/2005 | DE10352823A1 Impact boring tool for precision drilling has separate boring head and support shaft joined by threaded connection |
| 06/23/2005 | DE102004056545A1 Vorrichtung und Verfahren zum Gewinnen von Informationen aus einer unterirdischen Formation Device and method for obtaining information from a subterranean formation |
| 06/23/2005 | DE102004055995A1 Vorrichtung, Verfahren und Sensor zum Bestimmen einer auf ein Bohrwerkzeug wirkenden Belastung The device, method and sensor for determining a load exerted on a drilling tool |
| 06/23/2005 | DE102004007872A1 Quick change drill bit for use in tunnel or salt mine has flat shoulder with centering chamfer and has threaded off-center peg engaging threaded side of blind bore in drilling rod |
| 06/23/2005 | CA2549204A1 Coiled tubing connector and method of manufacture |
| 06/22/2005 | CN2705584Y Drill rod centering device |
| 06/22/2005 | CA2490496A1 Disposable locking mechanism |
| 06/21/2005 | US6908121 Locking arrangement for a threaded connector |
| 06/21/2005 | US6907652 Pipe connecting method |
| 06/21/2005 | CA2300853C Conduit and cable bypass for downhole tools |
| 06/16/2005 | WO2005054622A1 Tubular stabbing protector and method |
| 06/16/2005 | WO2005026540A3 Downhole draw down pump and method |
| 06/16/2005 | WO2004083592B1 Apparatus and method for running a radially expandable tubular member |
| 06/16/2005 | US20050126823 Locking pin assembly for locking dog housing |
| 06/16/2005 | US20050126789 System and method for fail-safe disconnect from a subsea well |
| 06/16/2005 | US20050126775 Hydraulic release running tool |
| 06/15/2005 | EP1541771A1 Hydraulic swivel drive for grab bucket |
| 06/15/2005 | EP1540272A1 Apparatuses and methods for monitoring stress in steel catenary risers |
| 06/15/2005 | EP1540131A2 "top drive swivel apparatus and method" |
| 06/15/2005 | EP1540129A1 Downhole drill string having a collapsible subassembly |
| 06/15/2005 | EP1540128A2 Interposed joint sealing layer method of forming a wellbore casing |
| 06/15/2005 | EP1540127A2 Offshore platform with vertically-restrained buoy and well deck |
| 06/15/2005 | EP1362161B8 Seafloor-surface connecting installation of a submarine pipeline installed at great depth |
| 06/15/2005 | EP1303720A4 Coiled tubing connector |
| 06/15/2005 | CN2704676Y Polish rod drop-off preventor |
| 06/15/2005 | CN1628208A Method and arrangement by a workover riser connection |
| 06/15/2005 | CN1628207A Well system |
| 06/14/2005 | US6905149 Pressure relieved thread connection |
| 06/14/2005 | US6905114 Shock absorbing and shock force generating apparatus with shear pin for an oil pump and method therefor |
| 06/14/2005 | CA2336901C Well riser lateral restraint and installation system for offshore platform |
| 06/14/2005 | CA2285759C Adjustable gauge downhole drilling assembly |
| 06/14/2005 | CA2182704C Drilling bit assembly and apparatus |
| 06/12/2005 | CA2452858A1 Hydraulic release running tool |
| 06/11/2005 | CA2489610A1 A hydraulic swivel drive for a grab |
| 06/09/2005 | WO2005052314A1 Downhole swivel joint assembly and method of using said swivel joint assembly |
| 06/09/2005 | WO2005052301A2 Drill bit with protection member |
| 06/09/2005 | WO2005051755A2 Buoyancy can for offshore oil and gas riser |
| 06/09/2005 | WO2004094678A3 Hardfacing alloy, methods, and products |
| 06/09/2005 | US20050123358 Method and arrangement by a workover riser connection |
| 06/09/2005 | US20050121189 Reinforced resilient wiper element |
| 06/09/2005 | US20050121094 Composite spoolable tube |
| 06/09/2005 | US20050120813 Apparatuses for interaction with a subterranean formation, and methods of use thereof |
| 06/09/2005 | CA2546219A1 Downhole swivel joint assembly and method of using said swivel joint assembly |
| 06/08/2005 | EP1373766A4 Metal-to-metal seal with soft metal insert |
| 06/08/2005 | EP1295060B9 Tubular threaded joint capable of being subjected to diametral expansion |
| 06/08/2005 | CN2703864Y Replaceable sleeve stabilizer |
| 06/08/2005 | CN2703863Y Dual-function shock-damping propellor |
| 06/08/2005 | CN2703862Y Variable rigidity hydraulic shock damper |
| 06/08/2005 | CN2703861Y Borehole connecting stripping unit safety joint |
| 06/08/2005 | CN1624291A Elasticity supporting type oil well un-eccentrically worn alignment rod |
| 06/07/2005 | US6902414 Harsh environment rotatable connector |
| 06/07/2005 | CA2284516C Rotary and longitudinal shock absorber for drilling |
| 06/02/2005 | WO2005050080A1 Advancing pipe for placing in the ground |
| 06/02/2005 | US20050118848 Seal for coaxial cable in downhole tools |
| 06/02/2005 | US20050117974 Engineered material buoyancy system and device |
| 06/02/2005 | US20050116469 Coiled tubing connector and method of manufacture |
| 06/02/2005 | US20050115741 Well system |
| 06/02/2005 | US20050115718 Flow control mechanism for a downhole tool |
| 06/02/2005 | US20050115717 Improved Downhole Tool Liner |
| 06/02/2005 | US20050115715 Wellhead seal unit |
| 06/02/2005 | DE102004051615A1 Verkabelte Kommunikationsverbindung für einen Bohrstrang, Telemetriesystem für einen Bohrstrang und Verfahren zum Bohren eines Bohrlochs Wired communication connection for a drill string telemetry system and method for a drill string for drilling a borehole |
| 06/01/2005 | EP1534919A1 Suppression element for vortex-induced vibrations, construction kit, apparatus for extracting minerals, and mold |
| 06/01/2005 | CN2703116Y Underbalancing well hydraulic auxiliary pipe |
| 06/01/2005 | CN1204341C Spiral tube system combined with submersible pump system |
| 05/31/2005 | US6899188 Down hole drilling assembly with concentric casing actuated jet pump |
| 05/31/2005 | US6899186 Apparatus and method of drilling with casing |
| 05/31/2005 | US6899174 Floating instrument insert for a tool |
| 05/31/2005 | CA2188291C Casing tube with casing shoe |
| 05/26/2005 | WO2005047644A1 Directional cased hole side track method applying rotary closed loop system and casing mill |