| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
|---|
| 05/11/2011 | CN201826763U Externally thickened tubing and casing |
| 05/11/2011 | CN201826762U Synchronous two-way gas drill rod |
| 05/11/2011 | CN201826755U Drilling tool |
| 05/11/2011 | CN201826304U Cross section-variable threaded pile drill stem |
| 05/11/2011 | CN102057128A Pipe connection |
| 05/11/2011 | CN101644300B Sealed universal shaft |
| 05/11/2011 | CN101376970B Surface conditioning solution used before manganese series phosphating, preparation and use |
| 05/10/2011 | US7938202 Rotating drill pipe protector attachment and fastener assembly |
| 05/10/2011 | US7938184 Wellbore method and apparatus for completion, production and injection |
| 05/10/2011 | US7938177 Circulating sub tool for dispensing and circulating fluid in a well bore |
| 05/10/2011 | CA2489516C Reinforced tubular threaded joint for improved sealing after plastic expansion |
| 05/10/2011 | CA2446868C Apparatus and method for drilling a wellbore with casing and cementing the casing in the wellbore |
| 05/10/2011 | CA2432038C Borehole stabilization while drilling |
| 05/06/2011 | CA2741617A1 Self-stabilized and anti-whirl drill bits and bottom-hole assemblies and systems for using the same |
| 05/05/2011 | WO2011051678A2 Elongate member termination |
| 05/05/2011 | WO2011022255A3 Attachment of control lines to outside of tubular |
| 05/05/2011 | WO2011016997A3 Electrical penetrator assembly |
| 05/05/2011 | WO2011011574A3 Use of a spoolable compliant guide and coiled tubing to clean up a well |
| 05/05/2011 | WO2010143201A3 Dual rotary centralizer for a borehole |
| 05/05/2011 | WO2010096206A3 Apparatus and method for controlling the connection and disconnection speed of downhole connectors |
| 05/05/2011 | WO2010037137A3 Downhole device actuator and method |
| 05/05/2011 | US20110100721 Rotary drill bits including bearing blocks |
| 05/05/2011 | US20110100720 Glass Forming Hardbanding Material |
| 05/05/2011 | US20110100719 Locking mechanism for a ground drill |
| 05/05/2011 | US20110100639 Floating offshore structure for hydrocarbon production |
| 05/05/2011 | US20110100620 Active integrated well completion method and system |
| 05/05/2011 | CA2779165A1 Elongate member termination |
| 05/05/2011 | CA2779164A1 Reelable support |
| 05/04/2011 | EP2315905A1 Device for mounting a flexible line on structure, and related equipment and method |
| 05/04/2011 | EP2315656A2 Composite tubular product |
| 05/04/2011 | CN201818478U Vibration damping and righting device of single screw oil submerged pump |
| 05/04/2011 | CN201818249U Positioning anti-eccentric wear device |
| 05/04/2011 | CN201818248U Centralizer for radial hydraulic perforation |
| 05/04/2011 | CN201818247U Constant pressure protecting device of screw drilling tool |
| 05/04/2011 | CN201818246U Direct-coupling oil sleeve threaded joint |
| 05/04/2011 | CN201818245U Spiral pile driving and coupling device |
| 05/04/2011 | CN201818244U Rotating wear-resistant short joint of sucker rod |
| 05/04/2011 | CN201818243U Fiberglass reinforced plastic oil tube collar |
| 05/04/2011 | CN201818242U Solid pumping rod adopting non-uniform section friction welding |
| 05/04/2011 | CN201818235U Reverse rotary screw drilling tool |
| 05/04/2011 | CN201818234U Anti-falling device under torsion impacter |
| 05/04/2011 | CN102041978A Rod hiding type oil pumping unit |
| 05/04/2011 | CN102041971A Replaceable mine screw drill centralizer |
| 05/04/2011 | CN102041970A Protection device for separate stratum fracturing of continuous oil pipe |
| 05/04/2011 | CN102041965A Coal mine underground over-broken abnormal zone drilling method |
| 05/04/2011 | CN101408093B Diameter-variable stabilizer for gas drilling |
| 05/03/2011 | US7934570 Data and/or PowerSwivel |
| 04/28/2011 | WO2011049941A2 Downhole release joint with radially expandable members |
| 04/28/2011 | WO2011049733A2 Instrumented disconnecting tubular joint |
| 04/28/2011 | WO2011049581A1 Downhole tool with stabilizer and reamer and related methods |
| 04/28/2011 | WO2011048426A2 Expandable liner tieback connection |
| 04/28/2011 | WO2011011612A3 Wired conduit segment and method of making same |
| 04/28/2011 | WO2011011608A3 Apparatus and method for coupling conduit segments |
| 04/28/2011 | WO2011008908A3 Expansion system for expandable tubulars |
| 04/28/2011 | WO2011008835A3 Downhole intervention |
| 04/28/2011 | WO2011008834A3 Production riser |
| 04/28/2011 | WO2011005519A3 Downhole tool with roller screw assembly |
| 04/28/2011 | WO2010141967A3 Device for determining the length of a set of boring rods |
| 04/28/2011 | WO2010069992A9 Riser valve |
| 04/28/2011 | US20110094729 Electrical conduction across interconnected tubulars |
| 04/28/2011 | DE102009031364A1 Spacer for pair of pipes, particularly pair of borehole-pipes, has opening with clip formed integrally and elastically, where profile corresponding to pipe diameter is provided at predetermined distance of borehole pipe |
| 04/28/2011 | DE102007016824B4 Eindrehkupplung Eindrehkupplung |
| 04/28/2011 | DE10054659B4 Einrichtung zum richtungsgesteuerten Vortrieb von Rohren Means for steerable propulsion of tubes |
| 04/28/2011 | CA2777004A1 A tubular joint having wedge threads with surface coating |
| 04/27/2011 | EP2313599A1 Guide frame for riser tower |
| 04/27/2011 | EP2313598A2 Connector for spoolable media |
| 04/27/2011 | EP2313597A2 System and method for providing a downhole mechanical energy absorber |
| 04/27/2011 | EP1913230B1 Tubular member connection |
| 04/27/2011 | CN201810286U Selective mining mixed pumping tubular column applicable to two-layer mining |
| 04/27/2011 | CN201810228U Retractable roller centralizer |
| 04/27/2011 | CN201810227U Special stabilizer for gas drilling |
| 04/27/2011 | CN201810226U Well drilling torque-reducing stabilizer |
| 04/27/2011 | CN201810225U Eccentric wear resistant sucker rod nipple |
| 04/27/2011 | CN201810224U Buttress thread casing joint |
| 04/27/2011 | CN201810223U Buttress thread sleeve joint |
| 04/27/2011 | CN201810222U Hydraulic disconnected safety joint |
| 04/27/2011 | CN201810221U Buckle type drill rod connector |
| 04/27/2011 | CN201810220U Drill rod coupling |
| 04/27/2011 | CN201810219U Corrosion-resistant and wear-resistant sucker rod |
| 04/27/2011 | CN201810218U Capsule type rotating self-sealing rubber core |
| 04/27/2011 | CN201810199U Rotary drilling rig for screw rod drive drill rod |
| 04/27/2011 | CN102031938A Shock absorber for drilling tool in oil-gas drilling |
| 04/27/2011 | CN102031937A Maintenance-free anti-looseness insulating pup joint |
| 04/27/2011 | CN102031936A Threaded connection structure of steel tubes |
| 04/27/2011 | CN102031935A Extendable combined drill rod with water passage, air passage and slurry returning passage |
| 04/27/2011 | CN102031934A Drill rod water feeder |
| 04/27/2011 | CN102031933A Serial anti-fall centralizer |
| 04/27/2011 | CN102031458A High-strength special sucker rod steel |
| 04/27/2011 | CN102031454A Low-temperature casing pipe for polar region drilling and production |
| 04/27/2011 | CN101435523B Bias-wearing-proof method of filling oil conduit seam and oil conduit seam bushing ring |
| 04/26/2011 | US7932834 Data relay system for instrument and controller attached to a drill string |
| 04/26/2011 | US7931098 Steerable bit system assembly and methods |
| 04/26/2011 | US7931085 Internal release connector and method |
| 04/26/2011 | CA2509082C Rotary pump stabilizer |
| 04/26/2011 | CA2438559C Downhole latch |
| 04/21/2011 | WO2011044691A1 Pipe for the technical casing of a geological prospecting drilling rig |
| 04/21/2011 | WO2011044690A1 Hermetic threaded connecting device for drill or casing pipes of technical casing of geological prospecting drilling rig |
| 04/21/2011 | WO2011044689A1 Hermetic threaded connection of drill or casing pipes in technical casing for geological prospecting drilling well |
| 04/21/2011 | WO2011044674A1 Drill pipe |
| 04/21/2011 | WO2011002841A3 Hydraulically locking stabilizer |