| Patents for E21B 41 - Equipment or details not covered by groups (7,984) |
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| 10/23/2013 | EP2652250A1 Systems and methods for injecting a particulate mixture |
| 10/23/2013 | CN203248125U Power head sliding lug anti-dropping device |
| 10/23/2013 | CN203248124U Well site ground wire inserted rod pull-out device |
| 10/23/2013 | CN203248123U Gooseneck boom folding structure of rotary drilling rig |
| 10/23/2013 | CN203248122U Concealed folding hydraulic pipeline support |
| 10/23/2013 | CN103362478A Preassembled type fixed and movable two-function bracket |
| 10/22/2013 | CA2576897C Sleeve arrangement |
| 10/17/2013 | WO2013154337A1 Method and system for static and dynamic positioning or controlling motion of marine structure |
| 10/17/2013 | WO2013154231A1 Method and system for static and dynamic positioning of marine structure by using real-time monitoring of mooring line |
| 10/17/2013 | US20130269792 System and Method for Providing Heated Water for Well Related Activities |
| 10/16/2013 | CN203239292U Anti-misoperation control device |
| 10/15/2013 | US8555977 Remotely operated underwater redirection plenum chamber for spill response |
| 10/10/2013 | WO2012145494A3 System and method for drilling a borehole using streaming reference data |
| 10/10/2013 | US20130264051 Well tools selectively responsive to magnetic patterns |
| 10/09/2013 | CN203230389U Adjustable fender of pumping well |
| 10/08/2013 | CA2491807C Sealed branch wellbore transition joint |
| 10/03/2013 | WO2013144601A1 Rov deployable clamp |
| 10/03/2013 | US20130259575 Methods for storing carbon dioxide compositions in subterranean geological formations and an apparatus for carrying out method |
| 10/02/2013 | CN203223209U Downhole buffer device used for plunger gas lifting drainage gas recovery method |
| 10/01/2013 | CA2726769C System and method for deflection compensation in power drive system for connection of tubulars |
| 09/29/2013 | CA2773171A1 Climatic protection of fracking hydro tanks |
| 09/26/2013 | WO2013098362A3 An electrical power distribution method for a wireline tool string downhole |
| 09/26/2013 | WO2013072682A3 Improvements in or relating to subsea power distribution |
| 09/26/2013 | US20130248182 Modular manifold of a wellsite fluid system and method of using same |
| 09/26/2013 | US20130248174 Autonomous Downhole Conveyance System |
| 09/25/2013 | CN203214013U Power swivel reaction torque device |
| 09/25/2013 | CN203214012U Visualization device for safe operation |
| 09/25/2013 | CN103321610A Gas well lifting draining method capable of eliminating H2S damage |
| 09/25/2013 | CN103321609A Novel drilling and reaming tool |
| 09/25/2013 | CN103321227A Maritime waterproof conduit piling cap device |
| 09/24/2013 | US8540016 Control and supply unit |
| 09/24/2013 | CA2608292C Device and method for retrieving debris from a well |
| 09/24/2013 | CA2401705C Wireless downhole measurement and control for optimizing gas lift well and field performance |
| 09/19/2013 | WO2013137861A1 Method and device for interfacing with subsea production equipment |
| 09/19/2013 | WO2013136310A1 Hydrocarbon gas treatment |
| 09/19/2013 | WO2012148839A3 Pressure relief valve |
| 09/19/2013 | US20130240213 Guidepost extension |
| 09/18/2013 | EP2639401A1 Wellbore real-time monitoring and analysis of fracture contribution |
| 09/18/2013 | EP2638186A1 Method and composition for preventing corrosion of metal surfaces |
| 09/18/2013 | CN103314177A Removable guidepost extension |
| 09/17/2013 | US8538701 Fluid conductivity measurement tool and methods |
| 09/12/2013 | WO2013132269A1 Nozzle for a liquid heat barrier |
| 09/12/2013 | WO2013093389A8 Unequal load collet and method of use |
| 09/12/2013 | WO2012148840A3 Weighted pressure relief valve |
| 09/12/2013 | US20130233544 System and process for inhibitor injection |
| 09/12/2013 | US20130233543 Nitrogen-containing compounds as corrosion inhibitors |
| 09/12/2013 | US20130233390 Collecting Tank, System Comprising Collecting Tank and Multi-Phase Pumps, and Method for Separating and Dividing Up a Multi-Phase Mixture |
| 09/11/2013 | CN203186464U Horizontal directional drilling machine operation room |
| 09/11/2013 | CN103291246A Positioning mechanism for underwater horizontal connector |
| 09/06/2013 | WO2013126983A1 Line pipe tray |
| 09/05/2013 | US20130228377 Rock drilling rig and method for transmission of rock drilling rig |
| 09/05/2013 | US20130228373 Apparatus Including Load Driven By a Motor Coupled to an Alternator |
| 09/04/2013 | CN203175495U Buzz-prompting drilling machine for trenchless construction |
| 09/04/2013 | CN203175494U Gyro orientation rotary key-sitting device |
| 09/04/2013 | CN203175493U Portable methanol filling device for unfreezing casing-head gas pipeline |
| 09/04/2013 | CN103282599A Low equivalent circulation density setting tool |
| 09/04/2013 | CN103282595A Lateral junction assembly |
| 09/04/2013 | CN103282271A Subsea anchor |
| 09/04/2013 | CN103275685A Annular suspension protection liquid of annular suspension mechanical seat seal oil well and construction process thereof |
| 09/04/2013 | CN102112736B 能量发生器 Energy generator |
| 08/29/2013 | WO2012115763A9 Method of introducing treatment agents into a well or flow conduit |
| 08/29/2013 | US20130223935 Methods and arrangements for carbon dioxide storage in subterranean geological formations |
| 08/29/2013 | US20130220434 Systems And Methods For Pressure Boosting Of Liquids Of A Hydrocarbon Gas-Liquid Separator Using One Or More Pumps On Seabed |
| 08/28/2013 | EP2631422A2 Method of conjugated hydrocarbon gas extraction and storage CO2 in horizontal wellbores |
| 08/28/2013 | CN203161182U Automatic detection and protection device for drilling machine grounding system |
| 08/28/2013 | CN203161181U Electronic control ball injector bin gate control mechanism |
| 08/28/2013 | CN203161180U Agent adding vehicle for oil well |
| 08/27/2013 | US8521496 Systems and methods for improved positioning of pads |
| 08/27/2013 | US8517090 Apparatus and methods for tubular makeup interlock |
| 08/27/2013 | US8516794 Economic means of aspirating a fuel combustion engine with non-atmospheric gases to produce a subsequently useful byproduct |
| 08/27/2013 | CA2614980C Downhole force generator |
| 08/22/2013 | WO2012122337A3 Altra-low friction coatings for drill stem assemblies |
| 08/22/2013 | WO2012116036A3 Coated sleeved oil gas well production devices |
| 08/22/2013 | US20130213644 Method for signalling a downhole device in a well |
| 08/22/2013 | US20130213643 Consolidating Spacer Fluids and Methods of Use |
| 08/22/2013 | US20130213634 Grinding Arrangement For Tool Joints On A Drill String |
| 08/21/2013 | EP2628893A1 Method for exploiting a deposit using a technique for selecting the positions of drilling wells |
| 08/21/2013 | EP2627863A1 Guide post |
| 08/21/2013 | EP2627862A1 Method and apparatus for a high side orienting sub for multi-lateral installations |
| 08/21/2013 | EP2627853A2 Pressure bearing wall and support structure therefor |
| 08/21/2013 | CN103261582A Method for automatic control and positioning of autonomous downhole tools |
| 08/20/2013 | US8511387 Made-up flange locking cap |
| 08/20/2013 | CA2736227C Removable hand guard for drilling rig hand tongs |
| 08/15/2013 | WO2013119127A1 Device in a subsea electromechanical actuator and method for use of a subsea electromechanical actuator |
| 08/15/2013 | WO2013119126A1 Power actuator device and method for submerged use at petroleum exploitation |
| 08/15/2013 | WO2012135306A3 Coated oil and gas well production devices |
| 08/15/2013 | WO2012118411A3 Method for the additional development of depleted natural hydrocarbon deposits |
| 08/15/2013 | WO2012118410A3 Method of carbon dioxide disposal in water-bearing strata |
| 08/15/2013 | US20130206419 Blowout preventer and launcher sytem |
| 08/15/2013 | CA2805584A1 Wellhead drive brake system |
| 08/14/2013 | CN203130046U Agent adding device for oil well |
| 08/14/2013 | CN203130020U Hydraulic drive device for wellhead blowout prevention system |
| 08/14/2013 | CN103244156A Anti-tipping protection method for pneumatic anchor cable drill rig |
| 08/13/2013 | US8505620 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 08/13/2013 | CA2570344C Apparatus and methods for self-powered communication and sensor network |
| 08/10/2013 | CA2805469A1 Method and apparatus for modifying a cargo container to deliver sand to a frac site |
| 08/08/2013 | WO2013065013A3 Drilling arrangement |
| 08/08/2013 | US20130199854 Safety Protection Apparatus for Personnel on Oil Drilling Derricks |
| 08/07/2013 | EP2622174A2 Methods for storing carbon dioxide compositions in subterranean geological formations and an apparatus for carrying out the method |
| 08/07/2013 | CN203114250U Vehicle-mounted type guy-wire-free workover rig of inclined-balance side-balance load transmission device |