| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 02/07/2012 | CA2579111C Spring/seal element |
| 02/02/2012 | WO2012015927A2 Downhole seal and method of lubricating a downhole tool |
| 02/02/2012 | WO2012015551A1 Tubing hanger assembly with single trip internal lock down mechanism |
| 02/02/2012 | WO2012015376A1 Method and device for connecting pipes |
| 02/02/2012 | WO2012015315A1 Riserless, pollutionless drilling system |
| 02/02/2012 | WO2012015311A1 Expanding elastomer/plug device for sealing bore hole and pipelines |
| 02/02/2012 | WO2011156372A3 Low impact ball-seat apparatus and method |
| 02/02/2012 | WO2011156368A3 Ball-seat apparatus and method |
| 02/02/2012 | WO2011153621A3 Rotating flow control diverter |
| 02/02/2012 | WO2011130063A3 High strength dissolvable structures for use in a subterranean well |
| 02/02/2012 | US20120025470 Bi-directional metal-to-metal seal |
| 02/02/2012 | US20120024632 Downhole seal and method of lubricating a downhole tool |
| 02/02/2012 | US20120024542 Hanger floating ring and seal assembly system and method |
| 02/02/2012 | US20120024541 Drill Pipe Running Tool |
| 02/02/2012 | US20120024538 Christmas tree installation using coiled tubing injector |
| 02/02/2012 | US20120024536 Wellhead tree pressure limiting device |
| 02/02/2012 | US20120024527 Cement composition containing a substituted ethoxylated phenol surfactant for use in an oil-contaminated well |
| 02/02/2012 | US20120024521 Hydraulic lubricator for use at a wellhead |
| 02/02/2012 | DE102010032903A1 Emergency petroleum bore hole closure arrangement for use in e.g. land, has explosive bodies spaced from each other, where hole is split by introduction of dips to form seal such that seal withstands pressure of petroleum applied on seal |
| 02/02/2012 | CA2806672A1 Expanding elastomer/plug device for sealing bore hole and pipelines |
| 02/02/2012 | CA2806109A1 Downhole seal and method of lubricating a downhole tool |
| 02/01/2012 | EP2411622A2 Well tools utilizing swellable materials activated on demand |
| 02/01/2012 | EP2411618A2 Dc powered subsea inverter |
| 02/01/2012 | EP2411483A2 Emulsion-based cleaning composition for oilfield applications |
| 02/01/2012 | CN202132016U 一种密封装置及机械式密封封隔器 A sealing device and the mechanical seal packers |
| 02/01/2012 | CN202132015U 油气田用压缩式封隔器密封筒 Oil and gas fields with a compression packer sealed tube |
| 02/01/2012 | CN202132014U 一种油管内堵塞器 One kind of tubing clogged filter |
| 02/01/2012 | CN202132013U 电泵井井下防喷装置 Downhole pump wells blowout preventer |
| 02/01/2012 | CN202132012U 新型套管封井器 The new Casing Packer |
| 02/01/2012 | CN202132011U 润滑自动调节型密封圈 Lubrication automatic adjustment-ring |
| 02/01/2012 | CN202132010U 轴承式自润滑光杆密封器 Self-lubricating bearing rod sealer |
| 02/01/2012 | CN102341561A Dc powered subsea inverter |
| 02/01/2012 | CN102337872A One-grade three-section integrated water distribution tubular column of horizontal well |
| 02/01/2012 | CN102337861A Device for moulding and forming drilled hole wall |
| 02/01/2012 | CN102337860A 封隔器 Packer |
| 02/01/2012 | CN102337859A Coal field drill hole leak blocking system |
| 02/01/2012 | CN102337858A Tool for grouting in loose coal seam section during drilling |
| 02/01/2012 | CN102337857A Underground pipeline type leakage protective system used for exploiting petroleum |
| 02/01/2012 | CN102337856A Novel thermally-expanded extrusion packer for viscous oil steam-injection well |
| 02/01/2012 | CN102337855A Pre-filling self expansion packer for well completion |
| 02/01/2012 | CN102337854A Washable well type gradual unpacking packer |
| 02/01/2012 | CN102337853A Circulating drilling-free blind plate cementing device |
| 02/01/2012 | CN102337852A Borehole blowout preventer for water exploration |
| 02/01/2012 | CN102337851A Oil production wellhead device capable of rotating automatically |
| 02/01/2012 | CN102337850A Titanium alloy blowout-prevention pipe |
| 01/31/2012 | US8104769 Bi-directional wellhead seal |
| 01/31/2012 | US8104541 Apparatus and method for processing fluids from a well |
| 01/29/2012 | CA2745941A1 Isolation valve with debris control and flow tube protection |
| 01/26/2012 | WO2012012193A1 Method and system for sealing a wellbore |
| 01/26/2012 | WO2012012192A1 System and method for sealing a wellbore |
| 01/26/2012 | WO2012012000A1 Actuation of shape memory alloy materials using ultracapacitors |
| 01/26/2012 | WO2012011820A1 Method and system for testing a multiplexed bop control system |
| 01/26/2012 | WO2011151730A3 Apparatus for emergency electrodynamic capping of pipes and wells |
| 01/26/2012 | US20120018174 Method And Apparatus For Controlling The Flow Of Fluids From A Well Below The Surface Of The Water |
| 01/26/2012 | US20120018165 Marine Well Containment System and Method |
| 01/26/2012 | US20120018155 Cement compositions with a high-density additive of silicon carbide or sintered bauxite |
| 01/26/2012 | US20120018154 Methods for completing thermal-recovery wells |
| 01/26/2012 | US20120018143 Swellable Packer Anchors |
| 01/26/2012 | CA2806080A1 System and method for sealing a wellbore |
| 01/26/2012 | CA2806019A1 Method and system for sealing a wellbore |
| 01/25/2012 | EP2410121A2 Retrievable slip mechanism for downhole tool |
| 01/25/2012 | EP2410120A2 Swellable packer anchors |
| 01/25/2012 | EP1969246B1 Cam-actuated centrifugal brake for preventing backspin |
| 01/25/2012 | CN202125284U Dissolvable temporary plugging water nozzle |
| 01/25/2012 | CN202125283U High-pressure filling type rotary sliding well head |
| 01/25/2012 | CN202125275U Drilling-plug-free tool for top cementing of horizontal well sieve tube |
| 01/25/2012 | CN202125274U External packer of segmental well completion pipe of thermal production horizontal well |
| 01/25/2012 | CN202125273U Fracture packer |
| 01/25/2012 | CN202125272U Small-clamping-distance packer for fine water distribution |
| 01/25/2012 | CN202125271U Antitheft clamp for oil-water well |
| 01/25/2012 | CN202125270U Safe spear blanking plug |
| 01/25/2012 | CN102330543A Sucker rod ring seal movable sealer |
| 01/24/2012 | US8100190 Methods for swelling swellable elements in a portion of a well using a water-in-oil emulsion |
| 01/24/2012 | US8100189 System and method for dynamic sealing of a drill string |
| 01/24/2012 | US8100185 Multi-lock adapters for independent screwed wellheads and methods of using same |
| 01/24/2012 | US8100180 Method of servicing a wellbore with a sealant composition comprising solid latex |
| 01/24/2012 | US8100179 Production and delivery of a fluid mixture to an annular volume of a wellbore |
| 01/24/2012 | US8100175 Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing same |
| 01/24/2012 | CA2658830C Swelling element packer and installation method |
| 01/24/2012 | CA2626204C Reverse cementing float equipment |
| 01/23/2012 | CA2741802A1 Hole covering and locator |
| 01/23/2012 | CA2741238A1 Swellable packer anchors |
| 01/19/2012 | WO2012009536A2 Low density cementitious compositions using limestone |
| 01/19/2012 | WO2012009099A1 Auto-production frac tool |
| 01/19/2012 | WO2012008870A1 Method for plugging an undersea well and apparatus for carrying out said method |
| 01/19/2012 | WO2012007928A2 Positive retraction latch locking dog for a rotating control device |
| 01/19/2012 | WO2012007556A2 Process for backfilling a borehole and arrangement therefor |
| 01/19/2012 | WO2012007407A2 Blowout preventer and launcher system |
| 01/19/2012 | WO2011153524A9 Magnetorheological blowout preventer |
| 01/19/2012 | WO2011148192A3 System and method for severing a tubular |
| 01/19/2012 | WO2011148191A3 Tubular severing system and method of using same |
| 01/19/2012 | WO2011148190A3 Tubular severing system and method of using same |
| 01/19/2012 | US20120012343 Downhole Packer Having Swellable Sleeve |
| 01/19/2012 | US20120012342 Downhole Packer Having Tandem Packer Elements for Isolating Frac Zones |
| 01/19/2012 | US20120012341 Drilling operation suspension spool |
| 01/19/2012 | US20120012340 Method and system for sealing a wellbore |
| 01/19/2012 | US20120012339 System and method for sealing a wellbore |
| 01/19/2012 | US20120012336 Casing hanger profile for multiple seal landing positions |
| 01/19/2012 | US20120012335 Sealing adapter for well tubing head |
| 01/19/2012 | US20120012334 Method and apparatus for use with downhole tools having gas-filled cavities |