| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 01/30/2014 | WO2014018026A1 Time delayed secondary retention mechanism for safety joint in a wellbore |
| 01/30/2014 | WO2014016801A2 Non-invasive acoustic monitoring of subsea containers |
| 01/30/2014 | WO2014016758A2 A joint element, a casing stream comprising such a joint element and a method for compensating for forces due to thermal effects in a casing string |
| 01/30/2014 | US20140027184 Dual-Member Pipe Joint For A Dual-Member Drill String |
| 01/30/2014 | US20140027124 System for Conveying Fluid from an Offshore Well |
| 01/30/2014 | US20140027107 Continuous rod centralizer |
| 01/29/2014 | EP2689103A2 Sonde with integral pressure sensor and method |
| 01/29/2014 | EP2689102A1 Well tool assemblies with quick connectors and shock mitigating capabilities |
| 01/29/2014 | EP2689094A2 A riser |
| 01/29/2014 | EP2689093A1 Method for the assisted installation of an underwater riser |
| 01/29/2014 | EP1794407B1 Bend stiffener |
| 01/29/2014 | CN203412525U Resistivity-while-drilling drill collar |
| 01/29/2014 | CN203412524U Square kelly anti-off device |
| 01/29/2014 | CN203412523U Special thread for connecting oil well pipe |
| 01/29/2014 | CN203412522U Multi-stage water plugging string of bridge plug |
| 01/29/2014 | CN203412521U Underground glass reinforced plastic composite core casing |
| 01/29/2014 | CN103547765A Expansion cone assembly for setting a liner hanger in a wellbore casing |
| 01/29/2014 | CN103541667A Flushing drill bit |
| 01/29/2014 | CN103541666A Hydraulic variable-diameter centralizer |
| 01/29/2014 | CN103541665A 浇铸式抽油杆扶正器 Type casting rod centralizer |
| 01/29/2014 | CN103541664A Hydraulic feedback type sucker rod weighting device |
| 01/29/2014 | CN103541663A Special three-hole tube for plugging device and use method thereof |
| 01/29/2014 | CN102278075B Stress adapter based on top tension-type vertical tube and optimum design method thereof |
| 01/29/2014 | CN101906942B Pipe connector |
| 01/28/2014 | US8636448 Drilling apparatus, method, and system |
| 01/28/2014 | CA2749602C Open hole non-rotating sleeve and assembly |
| 01/28/2014 | CA2688106C Methods for cleaning out horizontal wellbores using coiled tubing |
| 01/28/2014 | CA2593228C Threads with perturbations |
| 01/27/2014 | CA2784269A1 Continuous rod centralizer |
| 01/23/2014 | WO2014014651A1 System and method for sand and inflow control |
| 01/23/2014 | WO2014014451A1 A pressure-operated dimple lockout tool |
| 01/23/2014 | WO2014014450A1 Reclosable multi zone isolation tool and method for use thereof |
| 01/23/2014 | WO2014014357A1 High pressure riser assembly |
| 01/23/2014 | WO2014013244A2 Structure monitoring |
| 01/23/2014 | WO2014012349A1 Information transmission apparatus of well logging during drilling |
| 01/23/2014 | WO2013022541A3 Method and apparatus for connecting tubulars of a wellsite |
| 01/23/2014 | US20140020905 Rotary lock block type drilling riser connector |
| 01/22/2014 | EP2686639A1 Self centering bore measurement unit |
| 01/22/2014 | EP2686514A1 Integral wear pad and method |
| 01/22/2014 | CN203403837U Semi-rigid centralizer |
| 01/22/2014 | CN203403836U Anti-falling oil pipe centralizer |
| 01/22/2014 | CN203403835U Buoyancy compensation system of deep sea petroleum drilling extraction device |
| 01/22/2014 | CN203403834U Barb type screwed joint |
| 01/22/2014 | CN203403833U Trapezoidal thread connector with tangency point sealing structure |
| 01/22/2014 | CN203403832U Air-tight seal screwed joint |
| 01/22/2014 | CN203403831U Direct-connecting oil casing pipe threaded connector |
| 01/22/2014 | CN203403830U Aluminum alloy drill pipe structure for wire-line coring drilling |
| 01/22/2014 | CN203403829U All-aluminum light alloy drilling pipe |
| 01/22/2014 | CN203403828U Joint suitable for welding of drilling rod |
| 01/22/2014 | CN203403822U Back-dragging broaching device with centering device |
| 01/22/2014 | CN103534437A Window joint for lateral wellbore construction and method for opening same |
| 01/22/2014 | CN103534435A Method and system for protecting a conduit in an annular space around a well casing |
| 01/22/2014 | CN103534434A Submersible progressive cavity pump driver |
| 01/22/2014 | CN103527181A Method and instrument for controllable source neutron logging during drilling |
| 01/22/2014 | CN103527111A Casing compensator |
| 01/22/2014 | CN103527110A Multistage sealing anti-sticky buckle type thread for titanium alloy oil casing |
| 01/22/2014 | CN103527109A Oil casing |
| 01/22/2014 | CN103527108A Anti-eccentric coupling |
| 01/22/2014 | CN103527107A Bidirectional self-locking type single-start thread marine riser connector |
| 01/22/2014 | CN103527106A Separate layer fracturing string |
| 01/22/2014 | CN103527105A Heat insulation oil pipe |
| 01/22/2014 | CN103527099A PDC (polycrystalline diamond compact) bit for oil drilling |
| 01/22/2014 | CN103527078A Hole forming technology and device for bored pile construction through down-the-hole hammer |
| 01/22/2014 | CN103526746A Full-thread pile pouring machine extruding soil body and pile-forming construction method thereof |
| 01/22/2014 | CN102146912B High-strength large-pump tripping device |
| 01/22/2014 | CN101928893B Low-alloy steel resistant to carbon dioxide corrosion |
| 01/21/2014 | US8631874 Apparatus and method for managed pressure drilling |
| 01/21/2014 | US8631873 Tubing hanger—production tubing suspension arrangement |
| 01/21/2014 | US8631864 Durability of downhole tools |
| 01/21/2014 | US8631863 Snap mount annular debris barrier |
| 01/21/2014 | US8631862 Self-sealing chemical injection line coupling |
| 01/21/2014 | CA2722642C Drill pipe having an internally coated electrical pathway |
| 01/21/2014 | CA2587147C Electronic id tag and co-operating antenna |
| 01/16/2014 | WO2014011193A1 Pipe in pipe piston thrust system |
| 01/16/2014 | WO2014011056A1 Device arranged for attaching a mandrel on a tubular body |
| 01/16/2014 | WO2013107462A3 Method of drilling a well |
| 01/16/2014 | WO2013104770A3 Nested dual drill pipe |
| 01/16/2014 | WO2013104769A3 Seal assembly for nested dual drill pipe |
| 01/16/2014 | US20140014386 Power tool with battery pack ejector |
| 01/16/2014 | US20140014373 Low Profile Clamp for a Wellbore Tubular |
| 01/16/2014 | US20140014370 Centraliser |
| 01/16/2014 | US20140014364 Mechanically Activated Contingency Release System and Method |
| 01/16/2014 | US20140014315 Modular downhole tool |
| 01/15/2014 | EP2683908A2 Restraint systems for hybrid decoupled risers |
| 01/15/2014 | CN203394481U Steam injection pipeline connection centralizer of production well |
| 01/15/2014 | CN203394379U Split type pumping rod centralizer |
| 01/15/2014 | CN203394378U Rolling wheel type polished rod anti-eccentric centralizer of wellhead |
| 01/15/2014 | CN203394377U Split rigid roller centering device |
| 01/15/2014 | CN203394376U Reaming type stabilizer |
| 01/15/2014 | CN203394375U Positioning centralizer for well polish rod of pumping unit |
| 01/15/2014 | CN203394374U Polished-rod centralizing device |
| 01/15/2014 | CN203394373U Oil pipe coupling device |
| 01/15/2014 | CN203394372U Fiber reinforced composite material continuous bandlet sucker rod joint |
| 01/15/2014 | CN203394371U Guide joint of coiled tubing |
| 01/15/2014 | CN203394370U Shear type releasing connector |
| 01/15/2014 | CN203394369U Coiled tubing ground sealing device |
| 01/15/2014 | CN203394368U Plug-in type stripping preventer |
| 01/15/2014 | CN203394367U Pumping well and flowing well wellhead adapter |
| 01/15/2014 | CN203394366U Anti-sink connecting elbow for wellhead flow path of pumping unit |
| 01/15/2014 | CN203394365U Double-tube type drill pipe |