| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
|---|
| 09/19/2002 | US20020130517 Threaded connection |
| 09/19/2002 | US20020129976 Friction reducing drillstring component |
| 09/19/2002 | US20020129945 Flexible joint for well logging instruments |
| 09/18/2002 | EP1240406A1 A thread joint and a male portion |
| 09/18/2002 | EP1240405A1 Drill string with interference fit couplings and couplers therefor |
| 09/18/2002 | EP0995007B1 Fastener for use in an oil tool and oil tool provided with such a fastener |
| 09/18/2002 | CN2511782Y Screw pile driver drilling rod |
| 09/18/2002 | CN2511781Y Band style sucker rod stabilizer |
| 09/18/2002 | CN2511780Y Slipless tubing anchor |
| 09/18/2002 | CN1369617A Spiral-rib anchor rod and spiral-rid drilling rod for drilling hole for it |
| 09/18/2002 | CN1369611A Centralizer for cardan axle of suker rod |
| 09/17/2002 | US6450541 Releasable connector |
| 09/17/2002 | US6450270 Rotary cone bit for cutting removal |
| 09/12/2002 | WO2002070858A2 Drilling device comprising a rotational drive |
| 09/12/2002 | WO2002055832A3 Conductive medium for openhole logging and logging while drilling |
| 09/12/2002 | WO2002036923A3 Casing drilling connector with low stress flex groove |
| 09/12/2002 | WO2001011189A9 Apparatus for optimizing production of multi-phase fluid |
| 09/12/2002 | US20020126969 Optical fiber cable for use in harsh environments |
| 09/12/2002 | US20020126021 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters |
| 09/12/2002 | US20020125014 Method and apparatus for running spooled tubing into a well |
| 09/12/2002 | US20020125009 Intelligent well system and method |
| 09/12/2002 | US20020125008 Intelligent well system and method |
| 09/11/2002 | EP1238181A1 Lockable drill steel and chuck assembly |
| 09/11/2002 | EP1159507A4 Method of making a conductive downhole wire line system |
| 09/11/2002 | EP0708872B1 Method and apparatus for controlling the head of a drilling or core-drilling device |
| 09/11/2002 | CN2510617Y Pumping well casing intercommunicating apparatus |
| 09/10/2002 | US6447025 Oilfield tubular connection |
| 09/10/2002 | US6447021 Locking telescoping joint for use in a conduit connected to a wellhead |
| 09/10/2002 | US6446739 Rock drill bit with neck protection |
| 09/10/2002 | US6446737 Apparatus and method for rotating a portion of a drill string |
| 09/10/2002 | US6446728 Auto-extending/retracting electrically isolated conductors in a segmented drill string |
| 09/10/2002 | US6446727 Process for hydraulically fracturing oil and gas wells |
| 09/10/2002 | US6446725 Rotating casing assembly and method |
| 09/10/2002 | US6446718 Down hole tool and method |
| 09/10/2002 | CA2375582A1 Guide apparatus |
| 09/06/2002 | WO2002068853A1 Improved tubing coupling |
| 09/06/2002 | WO2002068790A1 Shoe with earth formation disiplacing structure |
| 09/06/2002 | WO2002038910A3 Integrated modular connector in a drill pipe |
| 09/06/2002 | CA2438211A1 Improved tubing coupling |
| 09/05/2002 | US20020121392 Method and apparatus for boring through a solid material |
| 09/05/2002 | US20020121391 Rock drilling tool |
| 09/05/2002 | US20020121366 Induction choke for power distribution in piping structure |
| 09/04/2002 | EP1236860A2 Interconnecting well tool assemblies |
| 09/04/2002 | EP1236859A2 Connector latch |
| 09/04/2002 | EP1235971A1 Reamer shoe |
| 09/04/2002 | EP1180224A4 Scr top connector |
| 09/04/2002 | EP1109974A4 Well riser lateral restraint and installation system for offshore platform |
| 09/04/2002 | CN1367303A Continuous glass fibre reinforced plastic pumping band for oil production and connector |
| 09/03/2002 | US6443249 Rotary drill bits for directional drilling exhibiting variable weight-on-bit dependent cutting characteristics |
| 09/03/2002 | US6443247 Casing drilling shoe |
| 09/03/2002 | US6443244 Buoyant drill pipe, drilling method and drilling system for subterranean wells |
| 09/03/2002 | US6443240 Dual riser assembly, deep water drilling method and apparatus |
| 09/03/2002 | CA2276222C High pressure internal sleeve for use with easily drillable exit ports |
| 08/29/2002 | WO2002066792A1 High tensile loading top entry sub and method |
| 08/29/2002 | WO2002066786A1 Seafloor-surface connecting installation of a submarine pipeline installed at great depth |
| 08/29/2002 | WO2002066783A1 Mono-diameter wellbore casing |
| 08/29/2002 | WO2002066782A1 Apparatus for transmission of data and power in a wellbore |
| 08/29/2002 | WO2002066779A1 A deflection joint |
| 08/29/2002 | WO2002044520A3 Spool for injecting a fluid between casings |
| 08/29/2002 | WO2002006632A3 System and method for communicating information associated with a drilling component |
| 08/29/2002 | US20020119271 Composite spoolable tube with sensor |
| 08/29/2002 | US20020117856 Wedgethread pipe connection |
| 08/29/2002 | US20020117337 Drill pipe protector |
| 08/29/2002 | US20020117307 Oil well casing centralizer coupling |
| 08/29/2002 | US20020117304 Well screen cover |
| 08/29/2002 | CA2438358A1 A deflection joint |
| 08/28/2002 | EP1234091A1 Downhole device |
| 08/28/2002 | EP1234090A2 Pipe connecting method |
| 08/28/2002 | EP0960298B1 Tubular end connection |
| 08/28/2002 | EP0778914B1 Drill casing installation equipment with external friction reducing means |
| 08/28/2002 | CN2507989Y High shift drilling casing protector |
| 08/28/2002 | CN1366574A Method and device for measuring physical parameter in production shaft of deposit of underground fluid storage reservoir |
| 08/28/2002 | CN1366126A Electroreleasing device |
| 08/28/2002 | CN1366125A Rock drill having flushing hole |
| 08/27/2002 | US6439932 Multiple protected live circuit wet connect system |
| 08/27/2002 | US6439810 Buoyancy module with pressure gradient walls |
| 08/27/2002 | US6439618 Coiled tubing connector |
| 08/27/2002 | US6439326 Centered-leg roller cone drill bit |
| 08/27/2002 | US6439324 Electrically insulating gap subassembly for downhole electromagnetic transmission |
| 08/27/2002 | US6439311 Method of retarding sand build up in heavy oil wells |
| 08/27/2002 | US6439305 Hydraulically releasable coupling device |
| 08/27/2002 | US6439304 Stand-off device |
| 08/27/2002 | CA2214749C Improved casing shoe |
| 08/22/2002 | US20020115365 Buoyancy module with external frame |
| 08/22/2002 | US20020114216 Method and apparatus for communications in a wellbore |
| 08/22/2002 | US20020113716 Hollow drlling rod for transmitting information |
| 08/22/2002 | US20020113432 Subassembly electrical isolation connector for drill rod |
| 08/22/2002 | US20020112861 Methods and apparatus for interconnecting well tool assemblies in continuous tubing strings |
| 08/22/2002 | US20020112858 Smooth buoyancy system for reducing vortex induced vibration in subsea systems |
| 08/22/2002 | US20020112857 Method and apparatus for providing plural flow paths at a lateral junction |
| 08/22/2002 | US20020112853 Expandable centralizer |
| 08/22/2002 | US20020112852 Integrated modular connector in a drill pipe |
| 08/21/2002 | EP1233144A2 Locating and orienting system and use in multilateral wells |
| 08/21/2002 | EP1233143A1 Coiled tubing |
| 08/21/2002 | EP1233142A2 Guide bushing and use in multilateral wells |
| 08/21/2002 | EP1232322A1 Tube connection |
| 08/21/2002 | EP1232321A1 A thread joint, a male portion and a female portion |
| 08/21/2002 | EP1062529B1 Clamped receiver array using coiled tubing conveyed packer elements |
| 08/21/2002 | CN2506763Y Automatic adjustable counter-jetting resistance joint |
| 08/21/2002 | CN2506762Y Connection sleeve for flexible sucker rod |