| Patents for E21B 34 - Valve arrangements for boreholes or wells (14,685) |
|---|
| 05/01/2014 | WO2014065995A1 Valve system |
| 05/01/2014 | WO2014065813A1 Semi-autonomous insert valve for well system |
| 05/01/2014 | WO2014065788A1 Interventionless adjustable flow control device using inflatables |
| 05/01/2014 | WO2013127609A3 Actuator for dual drill string valve and drill string valve configurations therefor |
| 05/01/2014 | US20140116731 Method and apparatus for wellbore fluid treatment |
| 05/01/2014 | US20140116720 High Temperature Back Pressure Valve |
| 05/01/2014 | US20140116717 Valve system |
| 05/01/2014 | US20140116716 Spool module |
| 05/01/2014 | US20140116715 System and method for monitoring a subsea well |
| 05/01/2014 | US20140116713 RFID Actuated Gravel Pack Valves |
| 05/01/2014 | US20140116700 Integral diverter system |
| 05/01/2014 | US20140116693 Gravel Pack Apparatus Having Actuated Valves |
| 05/01/2014 | US20140116679 Oil and gas reservoir electric logging overflow safety control wireline hanger |
| 04/30/2014 | EP2725188A2 Gravel pack apparatus having actuated valves |
| 04/30/2014 | EP2724838A1 Filament wound composite ball and its manufacturing method |
| 04/30/2014 | EP2723978A1 A flushing tool and method of flushing perforated tubing |
| 04/30/2014 | CN203570293U Locked slide sleeve seat |
| 04/30/2014 | CN203570265U Slide sleeve oil extracting and draining device |
| 04/30/2014 | CN203570264U Cavity sleeved type reverse circulation valve |
| 04/30/2014 | CN203570263U Water injection control valve for oil producing well |
| 04/30/2014 | CN203570262U Fixed rack device for oil-well gas valve replacement under pressure |
| 04/30/2014 | CN103764939A Downhole fluid flow control system having a fluidic module with a bridge network and method for use of same |
| 04/30/2014 | CN103758494A Horizontal well external staged fracturing sand control string and method |
| 04/30/2014 | CN102383775B Double-cock ball throwing device and ball throwing method |
| 04/30/2014 | CN102383760B Design method of sliding sleeve switch |
| 04/30/2014 | CN102027190B A sub sea hybrid valve actuator system and method |
| 04/30/2014 | CA2828710A1 Opening isolation for fluid injection into a formation from an expanded casing |
| 04/29/2014 | US8708307 Elongated trunnion for high pressure ball valves |
| 04/29/2014 | US8708054 Dual path subsea control system |
| 04/29/2014 | US8708051 Isolation valve with debris control and flow tube protection |
| 04/29/2014 | US8708050 Method and apparatus for controlling fluid flow using movable flow diverter assembly |
| 04/29/2014 | US8708049 Downhole mixing device for mixing a first fluid with a second fluid |
| 04/29/2014 | CA2735384C Sneak path eliminator for diode multiplexed control of downhole well tools |
| 04/29/2014 | CA2698916C Subsea valve |
| 04/29/2014 | CA2581581C Direct connecting downhole control system |
| 04/24/2014 | WO2014060722A2 Flow control assembly |
| 04/24/2014 | US20140110128 Variable flow resistance for use with a subterranean well |
| 04/24/2014 | US20140110123 Wellbore isolation device made from a powdered fusible alloy matrix |
| 04/24/2014 | US20140110122 Safety System for Wells Having a Cable Deployed Electronic Submersible Pump |
| 04/23/2014 | EP2721247A1 Kobe sub with inflow control, wellbore tubing string and method |
| 04/23/2014 | CN203559867U Sea valve for tank pipeline of mud circulating system |
| 04/23/2014 | CN203559866U Circulating bottom valve under pressure |
| 04/23/2014 | CN203559865U Circulating bottom valve |
| 04/23/2014 | CN203559862U One-way sealing device for underground gas storage well shaft |
| 04/23/2014 | CN203559853U Blowout preventer for oil field equipment |
| 04/23/2014 | CN103742109A Anti-clogging valve body for injecting plugging slurry |
| 04/23/2014 | CN103742108A Downhole operation well fluid balance buffering method and multifunctional buffering fluid valve |
| 04/23/2014 | CN103742107A Downhole mechanical switching valve for coal-bed gas well testing |
| 04/23/2014 | CN103742106A Openable kelly cock valve with high pressure difference |
| 04/23/2014 | CN103742105A Multifunctional cock valve for petroleum drilling |
| 04/23/2014 | CN103742103A Double guide rod coercing reset type float collar |
| 04/22/2014 | US8701782 Subsurface safety valve with metal seal |
| 04/22/2014 | US8701781 Subsurface safety valve flapper |
| 04/22/2014 | US8701779 Bellows valve |
| 04/22/2014 | US8701778 Downhole tester valve having rapid charging capabilities and method for use thereof |
| 04/22/2014 | US8701777 Downhole fluid flow control system and method having dynamic response to local well conditions |
| 04/22/2014 | US8701776 Downhole actuating apparatus |
| 04/22/2014 | CA2752535C Temperature triggered actuator |
| 04/17/2014 | WO2014058814A1 Well system with an independently retrievable tree |
| 04/17/2014 | WO2014058626A1 Flow restrictor for a service tool |
| 04/17/2014 | WO2014058424A1 Horizontal fracturing tree |
| 04/17/2014 | WO2014056045A1 Hydrocarbon conduit connection |
| 04/17/2014 | WO2014056044A1 Improved diverter valve |
| 04/17/2014 | WO2014011361A3 Wellbore servicing assemblies and methods of using the same |
| 04/17/2014 | WO2013154420A3 Apparatus and method to remotely control fluid flow in tubular strings and wellbore annulus |
| 04/17/2014 | WO2013124643A3 Downhole flow control device |
| 04/17/2014 | WO2013079929A3 Apparatus and method for controlling a downhole device |
| 04/17/2014 | WO2012118889A3 Multi-actuating seat and drop element |
| 04/17/2014 | US20140102725 Seal assembly |
| 04/17/2014 | CA2850071A1 Horizontal fracturing tree |
| 04/16/2014 | EP2719856A2 Seal assembly for subsurface safety valve |
| 04/16/2014 | CN203547699U Fracturing sliding sleeve |
| 04/16/2014 | CN203547662U Annular pressure control type circulating valve |
| 04/16/2014 | CN203547661U Fine tuning air releasing valve dedicated for gas lift valve |
| 04/16/2014 | CN203547660U Back pressure valve |
| 04/16/2014 | CN203547659U Large drift diameter switch controller |
| 04/16/2014 | CN203547658U Isolating valve |
| 04/16/2014 | CN203547657U Circulating valve |
| 04/16/2014 | CN203547656U Novel backflow-preventing closing-free heat preservation combined well mouth |
| 04/16/2014 | CN203547614U Large reset spring tightener for subsurface safety valve |
| 04/16/2014 | CN203547611U Auxiliary device for changing clamp connected gate |
| 04/16/2014 | CN103732854A Autonomous fluid control assembly having a movable, density-driven diverter for directing fluid flow in a fluid control system |
| 04/16/2014 | CN103732852A Tubing pressure insensitive pressure compensated actuator for a downhole tool and method |
| 04/16/2014 | CN103732851A Annular barrier with compensation device |
| 04/16/2014 | CN103726805A Remote intelligent control constant-pressure air release device for sun-generated electric power |
| 04/16/2014 | CN102587860B Removable anti-blocking safety valve and special fishing tool for same |
| 04/16/2014 | CN102261231B Repeated switch sliding sleeve device |
| 04/15/2014 | US8695716 Multi-zone fracturing completion |
| 04/15/2014 | US8695712 Wellhead tree pressure compensating device |
| 04/15/2014 | US8695710 Method for individually servicing a plurality of zones of a subterranean formation |
| 04/15/2014 | US8695709 Self-orienting crossover tool |
| 04/15/2014 | US8695637 Gate valve pressure equalization system |
| 04/15/2014 | US8695622 Ball valve safety plug |
| 04/15/2014 | CA2581622C Dual check valve |
| 04/10/2014 | WO2014055598A2 Apparatus, system, and method for controlling the flow of drilling fluid in a wellbore |
| 04/10/2014 | WO2014055332A1 Interlocking segmented seat for downhole wellbore tools |
| 04/10/2014 | WO2014055192A1 Multi-cycle ball activated circulation tool with flow blocking capability |
| 04/10/2014 | WO2014055191A1 Sliding sleeve valve with feature to block flow through the tool |
| 04/10/2014 | WO2014055063A1 System and method for actuating isolation valves in a subterranean well |
| 04/10/2014 | WO2014053349A2 Hydraulic fracturing device and process |