E21B 34 - Valve arrangements for boreholes or wells

Patents for E21B 34 - Valve arrangements for boreholes or wells (14,685)
11/2006
11/21/2006	US7137452 Method of disabling and locking open a safety valve with releasable flow tube for flapper lockout
11/21/2006	US7137450 Electric-hydraulic power unit
11/21/2006	CA2249128C Fluid injection tubing assembly and method
11/16/2006	US20060254822 Method and apparatus for adding a tubular to drill string with diverter
11/15/2006	EP1721058A1 Connection system for subsea flow interface equipment
11/15/2006	CN1864021A Internal blow out preventer ball and seat
11/14/2006	US7134505 Method and apparatus for wellbore fluid treatment
11/14/2006	US7134488 Isolation assembly for coiled tubing
11/14/2006	CA2442981C Mechanically opened ball seat and expandable ball seat
11/14/2006	CA2262807C Tubular string auto-fill sub
11/09/2006	US20060249291 System and Method for Gas Shut Off in a Subterranean Well
11/08/2006	EP1718842A1 Method and actuator device
11/08/2006	EP1718841A1 Annular pressure relief collar
11/08/2006	CN2835531Y Multifunctional tubing anchor
11/08/2006	CN1858400A Automatic safety switch for oil and gas well
11/08/2006	CN1283892C Electrical transmission system for multilateral well
11/07/2006	US7131498 Expander for expanding a tubular element
11/02/2006	WO2006115471A1 Direct proportional surface control system for downhole choke
11/02/2006	US20060243455 Downhole tool
11/02/2006	US20060243444 apparatus for radially expanding and plastically deforming a tubular member
11/01/2006	CN2833097Y Inside-packed type water detection and blocking sequence switch
10/2006
10/31/2006	US7128160 Method and apparatus to selectively reduce wellbore pressure during pumping operations
10/31/2006	US7128152 Method and apparatus to selectively reduce wellbore pressure during pumping operations
10/31/2006	US7128151 Gravel pack crossover tool with single position multi-function capability
10/26/2006	US20060237196 Direct proportional surface control system for downhole choke
10/26/2006	US20060237194 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
10/25/2006	CN2830637Y Safety valve of downhole
10/25/2006	CN2830636Y Single handle rubber valve of pump wellhead
10/24/2006	US7124824 Washpipeless isolation strings and methods for isolation
10/24/2006	US7124819 Downhole fluid pumping apparatus and method
10/24/2006	CA2453367C Choke valve assembly for downhole flow control
10/19/2006	WO2006110039A1 Valve
10/19/2006	WO2006109008A1 Apparatus for removing debris in a wellbore
10/19/2006	US20060231264 Riserless modular subsea well intervention, method and apparatus
10/19/2006	US20060231260 Device and a method for optional closing of a section of a well
10/18/2006	EP0918918B1 Variable orifice gas lift valve for high flow rates with detachable power source and method of using
10/18/2006	CN2828307Y Arrow drilling tool check valve
10/18/2006	CN2828306Y Multipurpose combined valve for oil well head
10/17/2006	US7121344 Plug installation system for deep water subsea wells
10/17/2006	US7121295 Internal blow out preventer ball and seat
10/12/2006	US20060225893 Valve for controlling the flow of fluid between an interior region of the valve and an exterior region of the valve
10/12/2006	US20060225885 Downhole apparatus
10/11/2006	EP1259710B1 Oilwell casing electrical power pick-off points
10/11/2006	EP1259708B1 Wireless power and communications cross-bar switch
10/11/2006	EP1252414B1 Method and operating devices having expandable element actuators
10/11/2006	CN2825937Y Multifunctional and combined oil extraction device
10/11/2006	CN2825936Y Multifunctional oil sampling plug
10/10/2006	US7117945 Well operations system
10/10/2006	US7117943 Friction reducers for fluids comprising carbon dioxide and methods of using friction reducers in fluids comprising carbon dioxide
10/10/2006	US7117940 Expander for expanding a tubular element
10/10/2006	CA2435601C Valve cage insert
10/10/2006	CA2262808C Plug apparatus having a dispersible plug member and a fluid barrier
10/10/2006	CA2220067C Tubular actuator component for use in a drill-string
10/08/2006	CA2828209A1 Valve for controlling the flow of fluid between an interior region of the valve and an exterior region of the valve
10/08/2006	CA2691925A1 Valve for controlling the flow of fluid between an interior region of the valve and an exterior region of the valve
10/05/2006	US20060219411 High pressure system
10/04/2006	EP1707737A1 Tubing head seal assembly
10/04/2006	EP1540132B1 Fast valve actuator and tool provided with same
10/04/2006	EP1307633B1 Activating ball assembly for use with a by-pass tool in a drill string
10/04/2006	EP1297241B1 Method for drilling and casing a wellbore with a pump down cement float
10/04/2006	EP1259706B1 Use of downhole high pressure gas in a gas-lift well
10/04/2006	CN2823545Y Oil well sleeve gas releasing recovering device
10/04/2006	CN2823544Y Sealing structure of open hole bypass valve
10/04/2006	CN2823543Y Seizing prevention type one way valve
10/03/2006	US7114697 Fast valve actuator and tool provided with same
10/03/2006	US7114572 System and method for offshore production with well control
10/03/2006	US7114558 Filtered actuator port for hydraulically actuated downhole tools
10/03/2006	CA2326489C Drillstring with stabilisers for re-entering a primary wellbore
09/2006
09/28/2006	WO2006101618A2 Hydraulically controlled burst disk subs (hcbs)
09/28/2006	US20060213670 Bi-directional ball seat system and method
09/27/2006	CN2821148Y Double path cock valve
09/26/2006	US7111695 Pneumatic rock-boring device and method for horizontal drilling using compressed air and drilling medium
09/26/2006	US7111687 Recovery of production fluids from an oil or gas well
09/26/2006	US7111677 Sand control for blanking plug and method of use
09/26/2006	CA2400973C Downhole surge pressure reduction and filtering apparatus
09/23/2006	CA2540997A1 Downhole safety valve
09/20/2006	EP1703074A2 Tubular filling system
09/20/2006	EP1702136A1 Controlling a fluid well
09/19/2006	US7108073 Multiple interventionless actuated downhole valve and method
09/19/2006	US7108071 Automatic tubing filler
09/19/2006	US7108069 Online thermal and watercut management
09/19/2006	US7108068 Floating plate back pressure valve assembly
09/19/2006	US7108067 Method and apparatus for wellbore fluid treatment
09/19/2006	US7108065 Technique for preventing deposition products from impeding the motion of a movable component
09/19/2006	US7108006 Subsea actuator assemblies and methods for extending the water depth capabilities of subsea actuator assemblies
09/13/2006	EP1700999A2 Tubular filling system
09/13/2006	EP1700998A2 Tubular Filling System
09/13/2006	CN2816352Y Strong magnetic liquid-relief valve
09/13/2006	CN2816344Y Well mouth safety valve control device
09/12/2006	US7104331 Optical position sensing for well control tools
09/12/2006	CA2395177C Controlling fluid flow in conduits
09/12/2006	CA2309516C Drill string diverter apparatus and method
09/12/2006	CA2260333C Method for operating an active oil and gas production well using a pumping system
09/07/2006	US20060196675 Tubing Fill and Testing Valve
09/07/2006	US20060196670 Well testing system
09/07/2006	US20060196669 Balance line safety valve with tubing pressure assist
09/07/2006	US20060196668 Method, device and apparatus
09/06/2006	CN2813885Y Rotary type drip
09/06/2006	CN2813884Y Sand settling oil drainage drip
09/06/2006	CN2813883Y Drilling rod floating valve

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