| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 01/20/2004 | US6679336 Multi-purpose float equipment and method |
| 01/20/2004 | US6679335 Method for preparing casing for use in a wellbore |
| 01/20/2004 | US6679334 Use of helically wound tubular structure in the downhole environment |
| 01/20/2004 | US6679332 Petroleum well having downhole sensors, communication and power |
| 01/20/2004 | US6679325 Minimum clearance bow-spring centralizer |
| 01/20/2004 | US6679323 Severe dog leg swivel for tubing conveyed perforating |
| 01/20/2004 | CA2309620C Coiled tubing sensor system for delivery of distributed multiplexed sensors |
| 01/20/2004 | CA2135961C Method, apparatus and installation for surveying and monitoring a hydrocarbon reservoir penetrated by a well |
| 01/16/2004 | CA2409575A1 Combined rod guide and rod rotator device |
| 01/15/2004 | WO2004005669A1 Corrugated downhole tubulars |
| 01/15/2004 | WO2004005668A1 Downhole drill string having a collapsible subassembly |
| 01/15/2004 | WO2004005665A2 Dovetail thread coupling for expandable tubulars |
| 01/15/2004 | WO2003002840A3 Improved stabilizer for use in a drill string |
| 01/15/2004 | US20040007872 Tool module interconnect for use in directional drilling |
| 01/15/2004 | US20040007391 Boring apparatus |
| 01/15/2004 | US20040007355 Convertible tubular scraper |
| 01/15/2004 | DE20317107U1 Device used for drilling, especially in underground mining, comprises a drill rod assembly for connecting to a rotary drilling turbine and consisting of drill rods joined together |
| 01/15/2004 | CA2759774A1 Methods for expanding threaded tubulars |
| 01/15/2004 | CA2492746A1 Downhole drill string having a collapsible subassembly |
| 01/14/2004 | EP1379804A1 Threaded connection |
| 01/14/2004 | EP1379753A1 Compliant buoyancy can guide |
| 01/14/2004 | CN2599213Y Bidirectional rotation slips oil pipe anchor |
| 01/14/2004 | CN2599209Y Flexible oil pumping rod top thread clamp joint |
| 01/14/2004 | CN2599208Y Full distance positioning artirotating expansion pipe |
| 01/14/2004 | CN2599207Y Thermal insulatnig petroleum pipeline |
| 01/13/2004 | US6677861 Monitoring system |
| 01/13/2004 | US6675901 Use of helically wound tubular structure in the downhole environment |
| 01/13/2004 | US6675898 Apparatus for preventing critical annular pressure buildup |
| 01/08/2004 | WO2004003416A1 Reinforced tubular threaded joint for improved sealing after plastic expansion |
| 01/08/2004 | WO2004003340A1 Bore-lining tubing |
| 01/08/2004 | WO2004003334A1 Male portion, drill bit and threaded joint for percussive rock drilling |
| 01/08/2004 | WO2004003327A2 Helically wound insert for expandable tubulars |
| 01/08/2004 | WO2004002644A1 Method of manufacturing continuous sucker rod |
| 01/08/2004 | US20040003945 Drill string member |
| 01/08/2004 | US20040003926 System and method for fail-safe disconnect from a subsea well |
| 01/08/2004 | CA2490289A1 Method of manufacturing continuous sucker rod |
| 01/07/2004 | EP1378699A1 Threaded joint for steel pipe and method for surface treatment of the threaded joint |
| 01/07/2004 | EP1378698A1 Threaded joint for steel pipe |
| 01/07/2004 | EP1378626A2 System and method for fail-safe disconnect from a subsea well |
| 01/07/2004 | EP1194677B1 Device connecting the sea floor with the surface comprising a submarine pipeline attached to at least one floater |
| 01/07/2004 | CN2597655Y Oil well drilling rod protecting sleeve |
| 01/07/2004 | CN2597654Y Rotary vibration damper for sucker rod |
| 01/07/2004 | CN1465846A Method and apparatus for making screen pipe to be drawn out easily |
| 01/06/2004 | US6672804 Device and method for maintaining and guiding a riser, and method for transferring a riser onto a floating support |
| 01/06/2004 | US6672406 Multi-aggressiveness cuttting face on PDC cutters and method of drilling subterranean formations |
| 01/06/2004 | US6672405 Perforating gun assembly for use in multi-stage stimulation operations |
| 01/06/2004 | US6672383 Subsurface signal transmitting apparatus |
| 01/06/2004 | CA2117085C Downhole activated system for perforating a wellbore |
| 01/02/2004 | EP1374345A1 Wet mateable connector |
| 01/02/2004 | EP1373766A2 Metal-to-metal seal with soft metal insert |
| 01/02/2004 | EP1373678A1 Downhole axial force generating tool |
| 01/02/2004 | EP1144796B1 Friction reducing tool and method for its use in a wellbore |
| 01/01/2004 | US20040000791 Helically wound expandable tubular insert |
| 01/01/2004 | US20040000404 Production tubing joint |
| 12/31/2003 | WO2004001182A2 Internal support apparatus for downhole tubular structures |
| 12/31/2003 | WO2004001181A1 Multi-point high pressure seal for expandable tubular connections |
| 12/31/2003 | CN2595989Y Oil-increasing cnetering guide |
| 12/31/2003 | CN2595988Y Quick-action joint for casing-pipe used in offshore oil and gas well |
| 12/31/2003 | CN2595987Y Large diameter telescopic joint |
| 12/31/2003 | CN2595986Y Adapter hoop for preventing sucker rod from slanting-wear |
| 12/31/2003 | CN2595985Y Piston type oil-increasing short joint |
| 12/31/2003 | CN2595984Y Coplane driect joint used for drilling article angle-regulating device |
| 12/31/2003 | CN2595983Y Metal pipe, rod having two layer of coatings with functions of hydrophobicity and olephobicity and corrosion-prenvention, antiscale and anti-waxing |
| 12/31/2003 | CN2595982Y Oil pipe with joint having male and female thread |
| 12/31/2003 | CN2595981Y 4 1/2´“é casing well fracturing pipe string |
| 12/31/2003 | CN2595980Y Threaded casing pipe |
| 12/31/2003 | CN1464170A Oil exploitation super short radius horizontal drilling completion tool and process thereof |
| 12/30/2003 | US6670880 Downhole data transmission system |
| 12/30/2003 | US6668949 Underreamer and method of use |
| 12/30/2003 | US6668934 Method for installing a water well pump |
| 12/30/2003 | US6668921 Providing a conduit for an instrumentation line |
| 12/30/2003 | US6668684 Tong for wellbore operations |
| 12/30/2003 | CA2261917C Engineered enhanced inserts for rock drilling bits |
| 12/30/2003 | CA2260307C Subassembly electrical isolation connector for drill rod |
| 12/30/2003 | CA2158238C Leakproof floating apparatus and method for fabricating said apparatus |
| 12/28/2003 | CA2390054A1 Method for manufacturing continuous sucker rod |
| 12/25/2003 | US20030234538 Multi-point high pressure seal for expandable tubular connections |
| 12/25/2003 | US20030234111 Internal support apparatus for downhole tubular structures and method of use |
| 12/25/2003 | US20030234106 Downhole tool and method for fracturing a subterranean well formation |
| 12/24/2003 | WO2003106811A1 Expandable centralizer for downhole tubulars |
| 12/24/2003 | WO2003106807A1 Threaded connection |
| 12/24/2003 | WO2003106806A1 A device and a method for drilling and completing a horizontal wellbore |
| 12/24/2003 | WO2003106587A1 Double emulsion based drilling fluids |
| 12/24/2003 | CN2594447Y Controller for plugging in well |
| 12/24/2003 | CN2594446Y Plastic collar casing centralizer |
| 12/24/2003 | CN2594445Y Bumper of three-deck cylinder drill well |
| 12/24/2003 | CN2594444Y Oil-well pipe joint |
| 12/24/2003 | CN2594443Y Down-the-hole rod |
| 12/23/2003 | US6666480 Submersible pump drop pipe and casing assembly connection and method of manufacture |
| 12/23/2003 | US6666274 Tubing containing electrical wiring insert |
| 12/23/2003 | US6666267 Downhole tools |
| 12/23/2003 | CA2240559C Embankment hammer |
| 12/23/2003 | CA2203736C Guided drilling system with shock absorber |
| 12/18/2003 | WO2003104668A1 Method and assembly for the rapid connection and separation of interconnectable elements |
| 12/18/2003 | WO2003104611A1 Method for construction and completion of injection wells |
| 12/18/2003 | WO2003104606A1 Tool module connector for use in directional drilling |
| 12/18/2003 | WO2003104605A1 Riser systems |
| 12/18/2003 | WO2003104604A1 Riser system |
| 12/18/2003 | US20030230893 Spoolable composite coiled tubing connector |
| 12/18/2003 | US20030230411 Expandable centralizer for downhole tubulars |