| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 01/19/2005 | CN1185428C Threaded tubular joint proof to external pressure |
| 01/19/2005 | CN1185401C Limiting stop ring for rod body |
| 01/18/2005 | US6844498 Data transmission system for a downhole component |
| 01/18/2005 | US6843332 Three dimensional steerable system and method for steering bit to drill borehole |
| 01/18/2005 | US6843329 Rotary percussion device for a drill column |
| 01/18/2005 | US6843320 Downhole tool with ratcheting swivel and method |
| 01/18/2005 | US6843119 Apparatus for measuring and recording data from boreholes |
| 01/13/2005 | WO2005003507A1 Drill string for upward drilling and components therefor |
| 01/13/2005 | WO2005003506A2 Method of deploying and powering an electrically driven device in a well |
| 01/13/2005 | WO2005003505A1 Coupling for dual member pipe |
| 01/13/2005 | WO2005003504A2 System, method and apparatus for securing control lines to a well pipe |
| 01/13/2005 | WO2004067974A3 Centrifugal applicator |
| 01/13/2005 | US20050006102 Cutting Tool |
| 01/13/2005 | US20050006101 Riser |
| 01/13/2005 | US20050006090 Electrical imaging in conductive and non-conductive mud |
| 01/13/2005 | US20050005668 Tubing expansion |
| 01/13/2005 | CA2524502A1 Drill string for upward drilling and components therefor |
| 01/12/2005 | EP1495209A1 Slotted expandable centraliser |
| 01/12/2005 | EP1264076A4 Multi-purpose float equipment and method |
| 01/12/2005 | EP1131532B1 Downhole tool with extendable members |
| 01/12/2005 | CN2670582Y Stabilizer with rotary nylon remover of wax to nicrease yield |
| 01/12/2005 | CN2670581Y Drill lined hole and completion bore bit connector |
| 01/12/2005 | CN2670580Y Buttress thread oil pipe connector |
| 01/12/2005 | CN2670579Y Drill rod for deep operation |
| 01/12/2005 | CN1563662A Set and method for repariring oil well casing by using iron based shape memory alloy |
| 01/11/2005 | US6840337 Method and apparatus for removing cuttings |
| 01/11/2005 | US6840336 Drilling tool with non-rotating sleeve |
| 01/11/2005 | US6840325 Expandable connection for use with a swelling elastomer |
| 01/11/2005 | US6840317 Wireless downwhole measurement and control for optimizing gas lift well and field performance |
| 01/11/2005 | CA2350149C Inflatable packer with feed-thru conduits |
| 01/11/2005 | CA2218259C Motor drive actuator for downhole flow control devices |
| 01/11/2005 | CA2204544C Coupling for anchor bars |
| 01/06/2005 | WO2005001795A2 Tubular member and method for identifying same |
| 01/06/2005 | WO2005001234A1 Sub-assembly for drill strings |
| 01/06/2005 | WO2004025068A3 System and method for well workover with horizontal tree |
| 01/06/2005 | US20050001738 Transmission element for downhole drilling components |
| 01/06/2005 | US20050001736 Clamp to retain an electrical transmission line in a passageway |
| 01/06/2005 | US20050001735 Link module for a downhole drilling network |
| 01/06/2005 | US20050000697 Formed tubulars |
| 01/06/2005 | US20050000693 Release tool for coiled tubing |
| 01/06/2005 | US20050000689 Method for conditioning wellbore fluids and sucker rod therefore |
| 01/05/2005 | EP1492936A1 Method and device for detecting leaks in an annulus of a riser |
| 01/05/2005 | DE202004016655U1 Rohrverbindung und Vorrichtung zur Herstellung einer Rohrverbindung Pipe joint and apparatus for manufacturing a pipe joint |
| 01/05/2005 | DE10327732A1 Drill pipe for injecting e.g. cement during e.g. tunnel construction, has securing device used for securing pipe bodies together such that securing device includes cone screws that partially penetrate socket and reach nipple |
| 01/05/2005 | CN2668827Y Oil-tube lifting-correcting device |
| 01/05/2005 | CN2668826Y Coil-base box bias-proof joint |
| 01/05/2005 | CN2668825Y Tail-pipe suspension structure |
| 01/05/2005 | CN2668824Y Device for reducing friction resistant force of sound well pipe-column |
| 01/05/2005 | CN1560422A Technology of preventing slantingly suck rod and oil pipe containing polymer of beam unit |
| 01/05/2005 | CN1560421A Tchnology of internal for tubing of drilling well |
| 01/05/2005 | CN1560420A Superstrong light pipe manifold |
| 01/04/2005 | US6837643 Rod coupling |
| 01/04/2005 | US6837311 Hybrid riser configuration |
| 01/04/2005 | CA2324456C Two-step, differential diameter wedge threaded connector |
| 12/30/2004 | US20040266290 Buoyancy element and module |
| 12/30/2004 | US20040263350 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters |
| 12/30/2004 | US20040263175 Apparatus for monitoring underground formations |
| 12/30/2004 | US20040262919 Premium tubular threaded joint comprising at least a threaded element with end lip |
| 12/30/2004 | US20040262042 Bit head retaining system and method of installing a bit head in a percussion drill |
| 12/30/2004 | US20040262041 Apparatus and method of controlling motion and vibration of an NMR sensor in a drilling bha |
| 12/30/2004 | US20040262013 Wired casing |
| 12/30/2004 | US20040262006 Method and apparatus for multilateral junction |
| 12/30/2004 | US20040262004 Method and apparatus for backing off a tubular member from a wellbore |
| 12/29/2004 | WO2004114487A1 Method and apparatus for deploying a line in coiled tubing |
| 12/29/2004 | WO2004113664A1 Inner and outer motor with eccentric stabilizer |
| 12/29/2004 | WO2003086675B1 Protective sleeve for threaded connections for expandable liner hanger |
| 12/29/2004 | EP1491718A2 A Stroke Indicator and a Tubular Patch |
| 12/29/2004 | EP1491715A2 Method and apparatus for backing off a tubular member from a wellbore |
| 12/29/2004 | EP1491714A2 Multilateral well drilling and completion method and appratus |
| 12/29/2004 | EP1379804A4 Threaded connection |
| 12/29/2004 | CN2667143Y Plate type sucker rod centralising device |
| 12/29/2004 | CN2667142Y Rotary sucker rod centralising device |
| 12/29/2004 | CN2667141Y Horizontal well sand wash centralising device |
| 12/29/2004 | CN2667140Y High strong oil well pipe column joints |
| 12/29/2004 | CN1182318C Quickly assembled centralizer of screw pump |
| 12/29/2004 | CN1182317C Screw joint for oil pipe or casing |
| 12/28/2004 | US6834889 Torque release coupling for use in drill strings |
| 12/28/2004 | US6834724 System for accessing oil wells with compliant guide and coiled tubing |
| 12/28/2004 | US6834722 Cyclic check valve for coiled tubing |
| 12/28/2004 | US6834716 Water well including a pump |
| 12/28/2004 | CA2443311C Expandable radially reduced tubular member |
| 12/28/2004 | CA2341181C Method and apparatus for determining position in a pipe |
| 12/23/2004 | WO2004111515A1 Subsea umbilical |
| 12/23/2004 | WO2004111389A1 System and method for transmitting electric power into a bore |
| 12/23/2004 | WO2004060590B1 Pressure relieved thread connection |
| 12/23/2004 | US20040258469 Magnetically controlled rod-assembly |
| 12/23/2004 | US20040256161 Modular design for downhole ECD-management devices and related methods |
| 12/23/2004 | US20040256154 Process and system for drilling and lining a bore hole |
| 12/23/2004 | US20040256108 Cylinder-stem assembly to floating platform, gap controlling interface guide |
| 12/22/2004 | EP1489260A1 Downhole tool and method of fracturing a well formation |
| 12/22/2004 | EP1489259A2 Method and apparatus for releasably connecting a wireline to a downhole tool |
| 12/22/2004 | EP1488153A2 Wedgethread pipe connection |
| 12/22/2004 | EP1488071A1 Method and device for directional down-hole drilling |
| 12/22/2004 | CN2665347Y Hydraulic tubing anchor |
| 12/22/2004 | CN2665345Y Movement limiting rotatable stabilizer |
| 12/22/2004 | CN2665344Y Torque resistant oil pipe screwed socket joint |
| 12/22/2004 | CN2665343Y Oil gas well specific screwed joint steel pipe |
| 12/22/2004 | CN2664817Y Knife bar for processing oil well pipe special thread coupling |
| 12/22/2004 | CN1556303A High temperatur eresistant carbon fiber composite material continuous oil pumping rod and its manufacturing technology |
| 12/22/2004 | CN1181279C Swivel appts. |