| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 01/03/2012 | CA2659454C Anchor system for packers in well injection service |
| 01/03/2012 | CA2597564C One trip cemented expandable monobore liner system and method |
| 01/03/2012 | CA2593607C Degradable polymers for wellbore fluids and processes |
| 01/03/2012 | CA2580177C Rotating control head radial seal protection and leak detection systems |
| 01/03/2012 | CA2541274C Cementing composition with controlled mechanical properties |
| 01/03/2012 | CA2536647C Dual function cement additive |
| 01/03/2012 | CA2524620C Cement compositions with improved mechanical properties and methods of cementing in subterranean formations |
| 01/03/2012 | CA2518729C Foamed compositions and methods of use in subterranean zones |
| 01/03/2012 | CA2512615C Actuator for well-head valve or other similar applications and system incorporating same |
| 12/30/2011 | CA2744229A1 External position indicator of ram blowout preventer |
| 12/30/2011 | CA2743362A1 Fluorinated elastomeric blowout preventer packers and method |
| 12/29/2011 | WO2011163573A2 Apparatus and method for isolating and securing an underwater oil wellhead and blowout preventer |
| 12/29/2011 | WO2011163369A2 A system and method for conformance control in a subterranean reservoir |
| 12/29/2011 | WO2011163305A2 Side pocket barrier valve gas lift and mandrel |
| 12/29/2011 | WO2011162895A2 Telescoping conduits with shape memory foam as a plug and sand control feature |
| 12/29/2011 | WO2011162616A1 Device and method for stablization of a wellhead, and also use of a suction substructure for support of a wellhead |
| 12/29/2011 | WO2011161625A1 Underwater device and method for blocking outflow a fluid like oil or gas by an underwater well |
| 12/29/2011 | WO2011160801A2 Method and apparatus for closing or securing a well |
| 12/29/2011 | WO2011160193A1 Inflatable packer and control valve |
| 12/29/2011 | US20110316236 Wicker-Type Face Seal and Wellhead System Incorporating Same |
| 12/29/2011 | US20110315405 Well tools utilizing swellable materials activated on demand |
| 12/29/2011 | US20110315404 Lubricating Seal for Use with a Tubular |
| 12/29/2011 | US20110315403 Bottom hole assembly comprising flow through setting tool and frac plug |
| 12/29/2011 | US20110315402 Method for forming an isolating plug |
| 12/29/2011 | US20110315398 Plug device and method of using same |
| 12/29/2011 | US20110315392 Subsea apparatus |
| 12/29/2011 | US20110315391 Arcuate control line encapsulation |
| 12/29/2011 | US20110315382 High temperature polymer gels for well treatments and their use |
| 12/29/2011 | US20110315381 Compositions and method for use in plugging a well |
| 12/29/2011 | US20110315380 System for cementing tubulars comprising a mud motor |
| 12/29/2011 | US20110315377 Sensors in Swellable Materials |
| 12/29/2011 | US20110315373 Retention Mechanism for Subterranean Seals Experiencing Differential Pressure |
| 12/29/2011 | US20110315372 Fluid sampling tool |
| 12/29/2011 | DE102010052220A1 Method for short term throttling flow of liquid medium e.g. deep sea flowing out petroleum in channel or through-hole at ground, involves injecting resistant material at channel, bore hole and pipe in flowing medium or petroleum |
| 12/29/2011 | DE102010030444A1 Oil leakages preventing system for sea floor, has blocks e.g. rocks and/or shaped bricks, distributed around fluid discharge portion, and filling mass i.e. underwater concrete, partially provided in hollow space between blocks |
| 12/29/2011 | DE102010026009A1 Method for covering e.g. sea borehole during production of oil by oil drilling platform, involves carrying out freezing agent stimulation such that temperature difference is caused between coolant and sea water |
| 12/29/2011 | DE102010025526A1 Device for sealing lines and/or bore holes, has swellable material e.g. water soluble polymer or original oily polymer, provided in free-flowing medium e.g. aqueous medium or oil medium, and mechanical unit fixing device at location |
| 12/29/2011 | CA2803032A1 Inflatable packer and control valve |
| 12/29/2011 | CA2802838A1 Device and method for stablization of a wellhead, and also use of a suction substructure for support of a wellhead |
| 12/29/2011 | CA2801657A1 A system and method for conformance control in a subterranean reservoir |
| 12/29/2011 | CA2743865A1 System for cementing tubulars comprising a mud motor |
| 12/28/2011 | EP2400110A2 Apparatus and method for severing a wellbore tubular |
| 12/28/2011 | EP2400109A2 Apparatus and method for severing a wellbore tubular |
| 12/28/2011 | EP2399000A2 Swellable material activation and monitoring in a subterranean well |
| 12/28/2011 | EP2183462B1 Method and apparatus for isolating a jet forming aperture in a well bore servicing tool |
| 12/28/2011 | CN202090890U 一种井下钻柱近钻头用止回阀 A downhole drill string near the drill bit with a check valve |
| 12/28/2011 | CN202090889U 一种新型地面送料装置 A new ground feeding device |
| 12/28/2011 | CN202090888U 封下堵上分层堵水工具 Layered under seal plug shutoff tool |
| 12/28/2011 | CN202090887U 一种井下环空防喷器 A downhole annular preventer |
| 12/28/2011 | CN202090886U 一种金属笼管外封隔器 Metal cage tube packer |
| 12/28/2011 | CN202090885U 自膨胀式封隔器 Self-expandable packer |
| 12/28/2011 | CN202090884U 油水井分层堵水封隔器 Oil wells stratified water shutoff packer |
| 12/28/2011 | CN202090883U 平衡式无卡瓦堵水管柱 No kava shutoff balanced column |
| 12/28/2011 | CN202090882U 一种低压漏油失油层多功能保护装置 A low-pressure oil spill loss multifunction protection device |
| 12/28/2011 | CN202090881U 一种整体式全封闸板的液动双闸板防喷器 A monolithic full closure of the hydraulic ram BOP double plate |
| 12/28/2011 | CN202090880U 支架踏板 Pedal bracket |
| 12/28/2011 | CN202090879U 套管头无法兰连接结构 Casing head flangeless connection structure |
| 12/28/2011 | CN202090878U 一种采油井口盘根密封装置 An oil wellhead seal packing |
| 12/28/2011 | CN202090877U 两用采油井口 Dual wellhead |
| 12/28/2011 | CN202090876U 调偏防泄漏井口保护器 Detuning wellhead leak-proof protection |
| 12/28/2011 | CN202090848U 井下堵水作业管柱 Underground water shutoff string |
| 12/28/2011 | CN102301073A 用于通过喷射灌浆来用于土壤固结中的潜孔锤钻的装置 By jet grouting to be used for soil consolidation in DTH drilling equipment |
| 12/28/2011 | CN102296978A 煤壁注水封孔器 Coal wall water sealing device |
| 12/28/2011 | CN101265788B 一种y管防污染方法及其装置 One kind of pollution y tube method and device |
| 12/27/2011 | US8083850 Method of brake fluid disposal and grinding aid for cement material |
| 12/27/2011 | US8083849 Activating compositions in subterranean zones |
| 12/27/2011 | US8083001 Expandable gage ring |
| 12/27/2011 | US8083000 Swellable packer having a cable conduit |
| 12/27/2011 | US8082982 Methods and devices for forming a wellbore with casing |
| 12/27/2011 | US8082981 Multiple point adjustable depth air sparging well system |
| 12/25/2011 | CA2708829A1 Stuffing box |
| 12/22/2011 | WO2011159983A1 Continuous circulating sub for drill strings |
| 12/22/2011 | WO2011159925A2 Use of wired tubulars for communications/power in an in-riser application |
| 12/22/2011 | WO2011159405A1 Methods and systems for subsea eletric piezopumps |
| 12/22/2011 | WO2011158001A1 A water-based fluid loss additive containing an amphiphilic dispersant for use in a well |
| 12/22/2011 | WO2011133319A3 Prevention, actuation and control of deployment of memory-shape polymer foam-based expandables |
| 12/22/2011 | WO2011093717A3 A tool for installing units in a well |
| 12/22/2011 | US20110308820 Downhole Apparatus with Packer Cup and Slip |
| 12/22/2011 | US20110308819 Hydraulicaly fracturable downhole valve assembly and method for using same |
| 12/22/2011 | US20110308818 Sealing Arrangement, And Corresponding Method |
| 12/22/2011 | US20110308817 Multi-Zone Fracturing Completion |
| 12/22/2011 | US20110308815 Multi-pressure flange connection |
| 12/22/2011 | US20110308800 Fluid loss additive containing a biodegradable grafted copolymer for a cement composition |
| 12/22/2011 | US20110308799 Water-based fluid loss additive containing an amphiphilic dispersant for use in a well |
| 12/22/2011 | US20110308793 High integrity hanger and seal for casing |
| 12/22/2011 | DE102010024496A1 Method for closing bore hole lying below water surface in off-shore platform during oil recovery, involves distributing curable mass around pipe, and closing pipe by butterfly valve after curable mass is partly cured |
| 12/22/2011 | DE102010024390A1 ABC-pipe closed system for use in rescue practices of brake pipe at seabed, has pipe connecting piece exposed to undestroyed pipe shaft piece of approximately specific meters height, sawed off horizontally and freed from sharp ridges |
| 12/22/2011 | CA2707059A1 Method and apparatus for installing and removing an electric submersiblepump |
| 12/21/2011 | EP2396501A2 Stage cementing tool |
| 12/21/2011 | EP2396382A1 Degradable perforation balls and associated methods of use in subterranean applications |
| 12/21/2011 | EP1689970B1 Plug systems and methods for using plugs in subterranean formations |
| 12/21/2011 | CN202081908U 涌水瓦斯抽放钻孔封孔装置 Gushing gas drainage drilling sealing device |
| 12/21/2011 | CN202081857U 一种瓦斯抽放钻孔的封孔设备 Sealing a gas drainage drilling equipment |
| 12/21/2011 | CN202081856U 扩张式封隔器胶筒 Expansion packer cones |
| 12/21/2011 | CN202081855U 可控式逐级解封封隔器 Controllable gradual unblocking packer |
| 12/21/2011 | CN202081854U 一种油水井密封器 An oil wells sealer |
| 12/21/2011 | CN202081853U 防喷器电液动控制系统 BOP electric hydraulic control system |
| 12/21/2011 | CN202081852U 新型井口低压封紧器 The new low-pressure wellhead seal tensioner |
| 12/21/2011 | CN202081851U 光杆密封器 Rod sealer |
| 12/21/2011 | CN102287221A 一种用于CO<sub>2</sub>气体开采器的封孔装置 Sealing device for CO <sub> 2 </ sub> gas extraction device |