| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 03/03/2010 | CN201416394Y Drilling rod sealing ring |
| 03/03/2010 | CN101660392A Oil and water contact expansible seal branch well hole connecting device |
| 03/02/2010 | US7669673 Auger having interchangeable cutting heads and method of using the same |
| 03/02/2010 | US7669671 Segmented sleeve on a downhole tool string component |
| 03/02/2010 | US7669652 Subsea pumping system |
| 03/02/2010 | CA2490967C Composite spoolable tube |
| 02/25/2010 | WO2010021999A2 Connection for well bore drilling tools |
| 02/25/2010 | WO2010021725A1 Ultra-low friction coatings for drill stem assemblies |
| 02/25/2010 | US20100044113 Connection for well bore drilling tools |
| 02/25/2010 | US20100044112 Drill stem connection and method |
| 02/25/2010 | US20100044110 Ultra-low friction coatings for drill stem assemblies |
| 02/25/2010 | US20100044106 Method and apparatus for delivering high power laser energy over long distances |
| 02/25/2010 | CA2734715A1 Ultra-low friction coatings for drill stem assemblies |
| 02/24/2010 | EP2157197A2 Seamless steel pipe to be used as a steel catenary riser in the touchdown zone |
| 02/24/2010 | EP2156004A1 Disconnectable riser-mooring system |
| 02/24/2010 | EP2155542A1 A device and method for suppressing vortex-induced vibrations |
| 02/24/2010 | CN201412616Y Oil pipe and casing thread nipple |
| 02/24/2010 | CN201412132Y Ring-shaped high-pressure manifold device |
| 02/24/2010 | CN201412084Y Composite-tooth casing pipe drill shoe |
| 02/24/2010 | CN201412083Y Centralizer special for expansion pipe for side tracking well |
| 02/24/2010 | CN201412082Y Sucker rod joint protector |
| 02/24/2010 | CN201412081Y Well-head reserved casing pipe protector |
| 02/24/2010 | CN201412080Y Flexible shock-absorbing centralizer for pumping rod |
| 02/24/2010 | CN201412079Y Drill rod thread sheath and mounting and dismounting wrench |
| 02/24/2010 | CN201412078Y Novel heat-insulated pipe heat-insulated pipe nipple |
| 02/24/2010 | CN201412077Y Negative-buckle threaded sleeve similar to trapezoid |
| 02/24/2010 | CN201412076Y Oil sleeve connector |
| 02/24/2010 | CN201412075Y Thickening oil pipe capable of improving processing finished-product rate of connecting thread |
| 02/24/2010 | CN201412074Y Ceramic sealing circular-bead drill pipe |
| 02/24/2010 | CN201411686Y Long auger-drill head |
| 02/24/2010 | CN101655004A Sleeve compensator special for thermal production well |
| 02/24/2010 | CN101655003A Air drilling double-wall drill rod |
| 02/24/2010 | CN101655002A Oil layer-section oil casing pipe for exploiting thick oil by method of combustion drive and production method thereof |
| 02/23/2010 | US7665549 Entrainment fluid channeling device for a down-hole drill string |
| 02/23/2010 | US7665532 Pipeline |
| 02/23/2010 | CA2635161C Downhole tubular string connections |
| 02/23/2010 | CA2394247C A drillpipe sub |
| 02/18/2010 | WO2010019958A1 Cementing enhancement device |
| 02/18/2010 | WO2010019675A2 Umbilical management system and method for subsea well intervention |
| 02/18/2010 | WO2010018366A2 A controller for a downhole tool |
| 02/18/2010 | WO2009140281A3 Open-faced rod spinner |
| 02/18/2010 | WO2009134886A3 Vibrating downhole tool |
| 02/18/2010 | US20100038141 Compliantly coupled gauge pad system with movable gauge pads |
| 02/18/2010 | US20100038140 Motor bit system |
| 02/18/2010 | US20100038139 Compliantly coupled cutting system |
| 02/18/2010 | US20100038087 Erosion mitigating apparatus and method |
| 02/18/2010 | US20100038068 Centralizer-based survey and navigation device and method |
| 02/18/2010 | CA2737073A1 Cementing device and method |
| 02/18/2010 | CA2733793A1 A controller for a downhole tool |
| 02/17/2010 | EP2154406A1 Threaded joint for steel pipes and process for the surface treatment thereof |
| 02/17/2010 | EP2154328A2 Composite enhanced metallic drilling riser system |
| 02/17/2010 | EP2153018A2 Bottom-surface connection installation comprising an elastic damping device taking the tension of the top end of a rigid subsurface duct |
| 02/17/2010 | EP2153013A2 Method and apparatus to position and protect control lines being coupled to a pipe string on a rig |
| 02/17/2010 | CN201407001Y Anti-deviation and abrasion correcting device for oil pumping rod of oil tube |
| 02/17/2010 | CN201407000Y Centralizer ensuring pore-forming accuracy of drilling machine |
| 02/17/2010 | CN201406999Y Mosaic-type inner guide sucker rod anti-abrasion device |
| 02/17/2010 | CN201406998Y Eccentric-abrasion prevention device of oil well |
| 02/17/2010 | CN201406997Y 抽油杆扶正器 Sucker rod centralizer |
| 02/17/2010 | CN201406996Y Shallow underground piercing machine drill rod connector |
| 02/17/2010 | CN201406995Y Pipe connecting piece |
| 02/17/2010 | CN201406994Y Device for evaluating performance of sand preventing tube |
| 02/17/2010 | CN201406993Y Direct-connected oil and gas well pipe |
| 02/17/2010 | CN201406992Y Coiled tubing |
| 02/17/2010 | CN101649724A Double-nut anti-off sucker rod string in thick oil horizontal well |
| 02/16/2010 | US7662251 Method of manufacturing composite riser |
| 02/16/2010 | US7661901 Knuckle swivel for servicing wells |
| 02/16/2010 | US7661726 Internal release connector and method |
| 02/16/2010 | US7661490 Stabilizing system and methods for a drill bit |
| 02/16/2010 | US7661486 Power tool with battery pack ejector |
| 02/16/2010 | US7661474 Connector assembly and method of use |
| 02/16/2010 | CA2442357C Threaded connection |
| 02/14/2010 | CA2675784A1 Insulated double-walled well completion tubing for high temperature use |
| 02/11/2010 | WO2010017371A1 Precision torque tool |
| 02/11/2010 | US20100032214 Composite Enhanced Metallic Drilling Riser System |
| 02/11/2010 | US20100032208 Drillstring Swivel Torque Monitor |
| 02/10/2010 | EP2150742A2 Method and apparatus for connecting drilling riser strings and compositions thereof |
| 02/10/2010 | EP2150675A1 Cable protector |
| 02/10/2010 | CN201401135Y Hole-expanding type tapered spiral drilling rod |
| 02/10/2010 | CN201401134Y Spiral drilling rod with T-type leaf blade |
| 02/10/2010 | CN201401133Y Cylindrical-joint arc-shaped bead drilling rod |
| 02/10/2010 | CN201401132Y Compound synergic process pipe column under pump in oil pumping well |
| 02/10/2010 | CN101644145A Novel spiral drill rod |
| 02/10/2010 | CN101644144A Transverse shock absorber applicable in gas drilling |
| 02/10/2010 | CN101644143A A thread joint for a drill string for percussive rock-drilling |
| 02/10/2010 | CN101644142A Self-lubricating thread of oil well pipe |
| 02/10/2010 | CN101644141A Gas distributary joint suitable for gas drilling coring tool |
| 02/10/2010 | CN101644140A CO* flooding single string multi-zone separate injection technical string |
| 02/10/2010 | CN100588817C Downhole tool connecting separator |
| 02/09/2010 | US7658230 High pressure insulated electrical, fiber and tubing feed-through fitting assembly |
| 02/09/2010 | CA2573236C Drill pipe protector |
| 02/04/2010 | WO2010012898A1 Flexible riser installation for carrying hydrocarbons used at great depths |
| 02/04/2010 | WO2010012487A1 Method and apparatus for installing a wireline for logging or other operations in an under-balanced well |
| 02/04/2010 | US20100025120 Casing Shoe and Retrievable Bit Assembly |
| 02/04/2010 | US20100025118 Apparatus |
| 02/04/2010 | CA2674590A1 Connection apparatus and method |
| 02/03/2010 | EP2149670A1 Method and apparatus for installing a wireline for logging or other operations in an under-balanced well |
| 02/03/2010 | EP2149669A2 Guide arrangement |
| 02/03/2010 | EP2148974A2 Bottom-surface linking equipment including a flexible link between a floating support and the upper end of an under-surface rigid duct |
| 02/03/2010 | EP2148972A1 Field-assemblable bow-spring casing centralizer and method of making a centralizer |
| 02/03/2010 | CN201396429Y Sealing ring for sealing oil pumping pipe and coupling |