Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 33 - Sealing or packing boreholes or wells
Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
11/2012
11/08/2012CA2834915A1 Liner cementation process and system
11/08/2012CA2834857A1 Single upset landing string running system
11/07/2012EP2520760A2 Seal
11/07/2012EP2520759A1 Supplying power to underwater devices
11/07/2012EP2520757A2 A method for connecting two coupling parts of a subsea coupling arrangement to each other
11/07/2012CN202520276U Multifunctional blowout control box blowout preventer
11/07/2012CN202520275U Pneumatic control blowout preventer
11/07/2012CN202520274U Water detection safety anti-blowout device in coal mine
11/07/2012CN202520273U Packing feeding assistor for water injection pump
11/07/2012CN202520272U Abrasion-proof reinforced sealing packing for oil exploitation
11/07/2012CN202520271U Universal ball type polish rod sealer of pumping well
11/07/2012CN202520270U Plug for preventing crude oil in oil well from being stolen
11/07/2012CN202520269U Flap type spray prevention packing box
11/07/2012CN202520268U Follow-up type eccentric wear preventing pumping wellhead polished rod sealing device
11/07/2012CN202520267U Three-grade polish rod sealer
11/07/2012CN202520266U Four-stage polished rod sealing device
11/07/2012CN202520265U Gas production well head device with metallic seals
11/07/2012CN102767389A Hole packer for drawing out gas and injecting slurry
11/07/2012CN102767355A Thick oil steam-huff-and-puff injection-production integrated oil production device
11/07/2012CN102767347A Bidirectional blowout preventing valve
11/07/2012CN102767346A Instant hole sealing device
11/07/2012CN102767345A Multifunctional sucker rod hanging blowout preventer
11/07/2012CN101936156B Self-expanding packer borehole simulation test device
11/07/2012CN101892842B Method for uncovering coal in vertical shaft
11/07/2012CN101709630B Integrated control module for safe shutdown system of wellhead
11/07/2012CN101503954B Water faucet for adjustable plugging device
11/07/2012CN101415904B Mounts for blowout preventer bonnets
11/06/2012US8302698 Activation-device launcher for a cementing head
11/06/2012US8302694 Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations
11/06/2012US8302678 Fracturing isolation sleeve
11/06/2012DE202012007972U1 Spannpacker mit mechanischer Spannvorrichtung Clamping packer with mechanical tensioner
11/06/2012CA2724401C Using nanoparticles for water flow control in subterranean formations
11/06/2012CA2548748C Method of creating a zonal isolation in an underground wellbore
11/06/2012CA2521033C Drifting tubing
11/05/2012CA2775215A1 Seal
11/01/2012WO2012149445A1 Emergency disconnect system for riserless subsea well intervention system
11/01/2012WO2012149080A2 Marine subsea riser systems and methods
11/01/2012WO2012148993A2 Subsea dispersant injection systems and methods
11/01/2012WO2012148979A2 Systems and methods for making subsea fluid conduit connections
11/01/2012WO2012148857A2 Contoured ram bore on type u blowout preventer
11/01/2012WO2012148640A2 Controlled production and injection
11/01/2012WO2012148579A1 System and method for casing hanger running
11/01/2012WO2012148546A1 Laser assisted system for controlling deep water drilling emergency situations
11/01/2012WO2012148288A1 Subsea well assembly and associated method
11/01/2012WO2012091982A3 Plug-inducing matter and method of plugging a wellbore
11/01/2012WO2012004652A3 Method and device for sealing leaks on media-conducting structures
11/01/2012WO2012001402A3 Oilfield equipment and related apparatus and method
11/01/2012WO2011160150A3 Device for sealing the end face of a tube from which fluid flows
11/01/2012US20120273217 Casing annulus tester for diagnostics and testing of a wellbore
11/01/2012US20120273214 Connection System for Subsea Flow Interface Equipment
11/01/2012US20120273213 Marine subsea riser systems and methods
11/01/2012US20120273202 Controlled Production and Injection
11/01/2012US20120273200 Methods for treating a wellbore
11/01/2012US20120273199 Nitinol Through Tubing Bridge Plug
11/01/2012US20120273188 Swellable Oilfield Apparatus and Methods of Forming
11/01/2012US20120273186 Fluid minotiring and flow characterization
11/01/2012CA2834294A1 Controlled production and injection
11/01/2012CA2831844A1 Contoured ram bore on type u blowout preventer
11/01/2012CA2827961A1 Laser assisted system for controlling deep water drilling emergency situations
10/2012
10/31/2012EP2518262A2 Subsea sensors display system and method
10/31/2012EP2518261A2 Automated well control method and apparatus
10/31/2012EP2518260A1 System and method for casing hanger running
10/31/2012EP2516798A2 Constant pressure open hole water packing system
10/31/2012EP2516795A2 Hydraulic deployment of a well isolation mechanism
10/31/2012DE102011018755A1 Rückdrehsicherung für Bohrlochpumpen Reverse protection for well pump
10/31/2012DE102010053900B4 Dichtungssystem für Bohrlochpumpen Sealing system for downhole pumps
10/31/2012CN202510085U Well cementation device used for improving cement slurry displacement efficiency
10/31/2012CN202510084U High-pressure well blanking plug
10/31/2012CN202510083U Double-packer nipple of stratum tester
10/31/2012CN202510082U Uniflow plug
10/31/2012CN202510081U K344 type expanding packer
10/31/2012CN202510080U Wellhead pressure sampling measurement device of single well
10/31/2012CN202510079U Electric submersible oil extraction wellhead device
10/31/2012CN102762814A Seal assembly and method of forming a seal assembly
10/31/2012CN102758620A Well control and wellhead equipment pressure testing device
10/31/2012CN102758619A Automated well control method and apparatus
10/31/2012CN102758599A Separate mining and combined mining pipe column for sieve pipe well completion horizontal well and mining method thereof
10/31/2012CN102758598A Integrated pipe column for accurate quantitative injection and seal examination and seal examination method thereof
10/31/2012CN102758597A Split six-channel cable-crossing packer
10/31/2012CN102758596A Separate layer fracturing packer
10/31/2012CN102758595A Well blowout processing device of geothermal system
10/31/2012CN101824979B Emulsion process profile control and water shutoff method of thickened oil steam huff-puff wells
10/31/2012CN101709624B Automatic loading shotcrete machine for coal mine
10/31/2012CN101581205B Self-controlled mine surface grout injection system
10/30/2012USRE43773 Drilling quick connectors
10/30/2012US8297368 Systems and methods for initiating annular obstruction in a subsurface well
10/30/2012US8297366 Installable load shoulder for a wellhead
10/30/2012US8297357 Acid-soluble cement compositions comprising cement kiln dust and/or a natural pozzolan and methods of use
10/30/2012US8297353 Use of micro-electro-mechanical systems (MEMS) in well treatments
10/30/2012US8297352 Use of micro-electro-mechanical systems (MEMS) in well treatments
10/30/2012US8297348 Seal configuration for top drive swivel apparatus and method
10/30/2012US8297346 Load bearing assembly
10/30/2012CA2709759C Removable hydraulic-set packer
10/30/2012CA2707994C Methods and apparatus for subsea well intervention and subsea wellhead retrieval
10/30/2012CA2671498C Water reductions in subterranean formations
10/30/2012CA2631084C Riserless deployment system
10/26/2012WO2012145506A2 Tubular actuating system and method
10/26/2012WO2012145488A2 System and method for deploying a downhole casing patch
10/26/2012WO2012143775A2 Ball valve safety plug
10/26/2012WO2012115730A3 Expandable packer with mandrel undercuts and sealing boost feature
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