| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 05/26/2006 | WO2006055953A1 Modular drillling apparatus with power and/or data transmission |
| 05/26/2006 | WO2006055303A2 Ergonomically efficient cordless power tool |
| 05/26/2006 | WO2006054933A1 Rock drill bit |
| 05/26/2006 | WO2006054901A1 A method and a device for solvent injection in a subsurface well |
| 05/26/2006 | WO2005124103A3 Apparatus and methods for positioning in a borehole |
| 05/26/2006 | CA2585564A1 Rock drill bit |
| 05/25/2006 | US20060110083 Bore hole assembly and method of designing same |
| 05/25/2006 | US20060108121 Riser tensioner with lubricant reservoir |
| 05/25/2006 | US20060108117 Selectively operational cleaning tool |
| 05/25/2006 | US20060108110 Coated tools for use in oil well pipes |
| 05/25/2006 | US20060107736 Measuring sonde for a hydrocarbon well |
| 05/25/2006 | US20060107514 Expandable slotted tubing string and method for connecting such a tubing string |
| 05/24/2006 | EP1659257A1 Offshore exploration and production system having an adjustable buoyancy chamber |
| 05/24/2006 | EP1483476B1 Double shoulder oilfield tubular connection |
| 05/24/2006 | EP1259702B1 Power generation using batteries with reconfigurable discharge |
| 05/24/2006 | EP1259701B1 Controlled downhole chemical injection |
| 05/24/2006 | CN2782910Y Pipe column without pressing oil reservoir for well cleanout |
| 05/24/2006 | CN1777736A Wellstring assembly |
| 05/24/2006 | CN1777732A Flexible power tool motor pack and method of making the same |
| 05/24/2006 | CN1776193A Butt-joint drilling rod capable of transmitting electric signal |
| 05/23/2006 | US7049506 Conductor system |
| 05/23/2006 | US7048079 Mud saver valve |
| 05/23/2006 | US7048078 Expandable underreamer/stabilizer |
| 05/23/2006 | US7048076 Percussion electrical hand held tool |
| 05/23/2006 | US7048064 Multi-unit centralizer |
| 05/23/2006 | US7048063 Profiled recess for instrumented expandable components |
| 05/23/2006 | US7048062 Method of selecting tubular members |
| 05/23/2006 | US7048052 Apparatus comprising expandable bistable tubulars and methods for their use in wellbores |
| 05/23/2006 | US7048050 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 05/23/2006 | CA2527395A1 Riser rotating control device |
| 05/23/2006 | CA2402221C In-well monitoring and flow control system |
| 05/23/2006 | CA2395753C Integrated transmitter surveying while boring (swb) entrenching powering device for the continuation of a guided bore hole |
| 05/23/2006 | CA2387616C Apparatus for transferring electrical energy between rotating and non-rotating members of downhole tools |
| 05/23/2006 | CA2292676C Electrically sequenced tractor |
| 05/23/2006 | CA2228494C Drilling method and casing shoe |
| 05/22/2006 | CA2491273A1 System and method of installing and maintaining an offshore exploration and production system having an adjustable buoyancy chamber |
| 05/18/2006 | US20060104735 Tool and accessory connecting system |
| 05/18/2006 | US20060102338 Anchoring device for a wellbore tool |
| 05/17/2006 | EP1551698B1 Riser installation vessel and method of using the same |
| 05/17/2006 | EP1328700B1 Drilling tool |
| 05/17/2006 | CN2780975Y Device for preventing mutual wear-out oil pipe and casing |
| 05/17/2006 | CN1256502C Well provided with flexible production tubing |
| 05/16/2006 | US7046165 Method for collecting geological data ahead of a drill bit |
| 05/16/2006 | US7044678 Connecting an anchoring rod to a drilling tool |
| 05/16/2006 | US7044240 Torque absorber for downhole drill motor |
| 05/16/2006 | US7044232 Well apparatus connection assembly |
| 05/16/2006 | US7044229 Downhole valve device |
| 05/16/2006 | US7044219 Shock absorber |
| 05/16/2006 | US7044218 Apparatus for radially expanding tubular members |
| 05/16/2006 | CA2338517C Optical fiber cable for use in harsh environments |
| 05/16/2006 | CA2185421C Device for permanent joining of tubes |
| 05/11/2006 | WO2006049572A1 Duplex stainless steel |
| 05/11/2006 | WO2006048623A1 Conveyor tube for use in installing or replacing a well tool in a producing well and procedures for use of the same |
| 05/11/2006 | WO2006003477A3 Intervention rod |
| 05/11/2006 | US20060096787 Bit retainer system |
| 05/11/2006 | US20060096771 Ergonomically efficient cordless power tool |
| 05/11/2006 | US20060096770 Knuckle joint and release/locking mechanism therefor |
| 05/11/2006 | CA2586452A1 Duplex stainless steel |
| 05/10/2006 | EP1495209B1 Slotted expandable centraliser |
| 05/10/2006 | CN2779040Y Partial abrasion proof centralizer of pumping rod |
| 05/10/2006 | CN2779039Y Highly effective multi-point balancing equipment |
| 05/10/2006 | CN2779038Y Wear-resisting centralizer of mutually-inserted type closing piece |
| 05/10/2006 | CN2779037Y Whole pole fixed type centralizer |
| 05/10/2006 | CN2779036Y Screw-threaded drilling rod |
| 05/10/2006 | CN2779035Y Tubing anchor |
| 05/10/2006 | CN2779034Y Sterilization, bacterium-restraining, dirt-preventing, wax-proof, anti-septic oil pipe |
| 05/10/2006 | CN2779033Y Hydraulic pre-stretched drill collar |
| 05/09/2006 | US7041908 Data transmission system for a downhole component |
| 05/09/2006 | US7040841 Shallow water riser support |
| 05/09/2006 | US7040422 Drill string member |
| 05/09/2006 | US7040415 Downhole telemetry system and method |
| 05/09/2006 | US7040406 Subsea riser disconnect and method |
| 05/09/2006 | US7040398 In situ thermal processing of a relatively permeable formation in a reducing environment |
| 05/09/2006 | US7040396 Apparatus for releasably coupling two elements |
| 05/09/2006 | US7040392 Bearing assembly for a progressive cavity pump and system for liquid lower zone disposal |
| 05/09/2006 | US7040018 Radially expandable tubular with supported end portion |
| 05/09/2006 | US7040003 Inductive coupler for downhole components and method for making same |
| 05/09/2006 | CA2526054A1 Subsea pumping system |
| 05/09/2006 | CA2382686C A hybrid riser configuration |
| 05/09/2006 | CA2323715C Threaded assembly of metal tubes designed to contain a corrosive fluid |
| 05/04/2006 | WO2006045741A2 Drill string stabiliser |
| 05/04/2006 | WO2005116387A3 Deployment system |
| 05/04/2006 | WO2005107395A3 Flexible drillstring apparatus and method for manufacture |
| 05/04/2006 | US20060090902 Protective sleeve for threaded connections for expandable liner hanger |
| 05/03/2006 | EP1653039A2 Centraliser |
| 05/03/2006 | EP1651840A1 Seafloor-surface coupling device comprising a flexible, leak-tight connection between a riser and a float |
| 05/03/2006 | EP1210497B8 Bit connector |
| 05/03/2006 | CN2777243Y Anti eccentrically wear device for oil pumping unit plunger |
| 05/03/2006 | CN2777192Y Water shut off tube column |
| 05/03/2006 | CN2777187Y Single-stage sectional type casing head |
| 05/03/2006 | CN2777177Y Rotating matching type centering guide for oil sucking |
| 05/03/2006 | CN2777176Y Anti-seizing drilling machine for underground boring |
| 05/03/2006 | CN2777173Y Rock powder dredging device for borehole |
| 05/03/2006 | CN1766335A Repair method for improving pumping rod strength |
| 05/03/2006 | CN1766278A Tubular goods with threaded integral joint connections |
| 05/02/2006 | US7036614 Fracture and wear resistant compounds and rock bits |
| 05/02/2006 | US7036612 Controllable magneto-rheological fluid-based dampers for drilling |
| 05/02/2006 | US7036582 Expansion cone for radially expanding tubular members |
| 05/02/2006 | US7036580 Downhole motor lock-up tool |
| 05/02/2006 | CA2198689C Method and apparatus for establishing branch wells at a node of a parent well |