Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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07/24/2013 | CN102031947B Back wash pump negative-pressure oil extraction device |
07/23/2013 | US8492317 Slag compositions and methods of use |
07/23/2013 | US8491013 Cementing swivel and retainer arm assembly and method |
07/23/2013 | US8490979 Method for reducing extrusion of sealing elements |
07/23/2013 | US8490708 Downhole apparatus and method |
07/23/2013 | US8490707 Oilfield apparatus and method comprising swellable elastomers |
07/23/2013 | US8490706 Casing head connector |
07/23/2013 | US8490704 Technique of fracturing with selective stream injection |
07/23/2013 | US8490702 Downhole tool assembly with debris relief, and method for using same |
07/23/2013 | US8490701 Methods of releasing at least one tubing string below a blow-out preventer |
07/23/2013 | US8490695 Method for drilling and fracture treating multiple wellbores |
07/23/2013 | US8490691 Plug |
07/23/2013 | US8490689 Bridge style fractionation plug |
07/23/2013 | US8490688 Methodology for setting of an inflatable packer using solid media |
07/23/2013 | CA2741802C Hole covering and locator |
07/23/2013 | CA2734186C Tubing hanger |
07/23/2013 | CA2685021C Seal for a drill string |
07/23/2013 | CA2537511C Mobile snubbing system |
07/18/2013 | WO2013106260A1 Performing multi-stage well operations |
07/18/2013 | WO2013106228A2 Multiple ramp compression packer |
07/18/2013 | WO2013105866A1 Access fitting for attaching a device within a process pipeline or vessel |
07/18/2013 | WO2013104069A1 Fluid or slurry pulsing casing/liner shoe |
07/18/2013 | WO2013030681A3 Wave-inducing device, casing system and method for cementing a casing in a borehole |
07/18/2013 | WO2012094626A4 Test packer and method for use |
07/18/2013 | WO2012041996A3 Rotating control device |
07/18/2013 | US20130181147 Blowout preventer with port for entry between casing and tubing string and/or port for entry into tubing string |
07/18/2013 | US20130180735 Completions fluid loss control system |
07/18/2013 | US20130180734 Packing Element with Full Mechanical Circumferential Support |
07/18/2013 | US20130180733 Seal ring backup devices and methods for preventing extrusion |
07/18/2013 | US20130180732 Multiple Ramp Compression Packer |
07/18/2013 | US20130180731 Pressure Activated Down Hole Systems and Methods |
07/18/2013 | US20130180718 Method and apparatus for wellbore fluid treatment |
07/18/2013 | US20130180717 System, method and apparatus for entraining air in concrete |
07/18/2013 | US20130180716 Settable spacer fluids comprising pumicite and methods of using such fluids in subterranean formations |
07/18/2013 | US20130180715 Methods and apparatus for cementing wells |
07/18/2013 | US20130180706 Expandable Device for Use in a Well Bore |
07/18/2013 | US20130180705 Expanding elastomer/plug device for sealing bore hole and pipelines |
07/18/2013 | US20130180094 Isolating tubing |
07/18/2013 | DE102011116953B4 Verfahren, Absperr- und Anschlussvorrichtungen zum Anbau in der Tiefsee zwecks Ausflussstoppen bzw. Anschließen an havarierten Erdgas- bzw. Erdölförderrohrstutzen, Präventer und Bohrgestänge Procedures, isolation and connection devices for cultivation in the deep sea for the purpose of stopping or discharge connection to natural gas or oil production damaged pipes, drill pipe and Präventer |
07/17/2013 | EP2615241A2 High strength dissolvable structures for use in a subterranean well |
07/17/2013 | CN203066927U Bracing wire claw type grout blocking hole packer |
07/17/2013 | CN203066926U Oil field testing blowout preventer |
07/17/2013 | CN203066925U Double-tube blowout preventer for oil well |
07/17/2013 | CN203066924U Combination-sealed direction-dividing wear-resisting fracture mining well head equipment |
07/17/2013 | CN203066923U Fast installed simple casing head |
07/17/2013 | CN203066895U Multi-wing type rigid casing pipe centralizer |
07/17/2013 | CN103210175A Bop lock down |
07/17/2013 | CN103206191A Integrated technique of liner cementing and channeling in heavy oil production |
07/17/2013 | CN103206190A Rapid inflation grouting hole-sealing method |
07/17/2013 | CN103206189A Timing automatic cement feeding mechanism |
07/17/2013 | CN103206188A Isolation packer |
07/17/2013 | CN103206187A Blanking plug for sand prevention |
07/17/2013 | CN103206186A Down-hole packer based on shape memory materials |
07/17/2013 | CN103206185A Blowout preventer ram |
07/17/2013 | CN101730785B A sealing device for a tubing arrangement, tubing structure and method for sealing the tubing structure |
07/17/2013 | CN101460699B A method and apparatus for patching a well by hydroforming a tubular metal patch, and a patch for this purpose |
07/17/2013 | CN101243239B Oil gas well drilling system and method for grouting in the system |
07/17/2013 | CN101107422B Methods for producing fluids from acidized and consolidated portions of subterranean formations |
07/16/2013 | US8486869 Methods of plugging and abandoning a well using compositions comprising cement kiln dust and pumicite |
07/16/2013 | US8486868 Settable compositions comprising unexpanded perlite and methods of cementing in subterranean formations |
07/16/2013 | US8485267 Hydra-connector |
07/16/2013 | US8485260 Modular backup fluid supply system |
07/16/2013 | US8485259 Structurally stand-alone FRAC liner system and method of use thereof |
07/16/2013 | US8485255 Water-based fluid loss additive containing an amphiphilic dispersant for use in a well |
07/16/2013 | CA2748207C Anti-rotation device for wellhead stuffing box |
07/16/2013 | CA2645948C High velocity string for well pump and method for producing well fluid |
07/16/2013 | CA2582941C An injection apparatus for injecting an activated fluid into a well-bore and related injection method |
07/11/2013 | WO2013103604A2 Sealing mechanism for subsea capping system |
07/11/2013 | WO2013103561A1 Segregating flowable materials in a well |
07/11/2013 | WO2013103461A1 Downhole plug drop tool |
07/11/2013 | WO2013025516A3 Debris barrier for hydraulic disconnect tools |
07/11/2013 | WO2011110856A3 An electric subsea valve actuating device |
07/11/2013 | US20130175056 Method and apparatus for injecting packing into stuffing boxes for reciprocating rods |
07/11/2013 | US20130175055 Sealing Mechanism for Subsea Capping System |
07/11/2013 | US20130175054 Sealing mechanism for subsea capping system |
07/11/2013 | US20130175053 Downhole plug drop tool |
07/11/2013 | US20130175052 Performing multi-stage well operations |
07/11/2013 | US20130175045 In-riser hydraulic power recharging |
07/11/2013 | US20130175044 Retrievable subsea device and method |
07/11/2013 | US20130175041 Pressure tolerant battery |
07/11/2013 | US20130175035 Downhole tools |
07/11/2013 | US20130175034 Drill hole plugs |
07/11/2013 | US20130175029 Method of forming subterranean barriers with molten wax |
07/11/2013 | CA2764302A1 Fluid or slurry pulsing casing/liner shoe |
07/10/2013 | EP2611988A1 Multi-function isolation tool and method of use |
07/10/2013 | EP2611987A2 Systems and methods for monitoring a parameter of a subterranean formation using swellable materials |
07/10/2013 | CN203050657U Horizontal well infinite stage even acidification tubular column |
07/10/2013 | CN203050613U Anti-rotating rubber plug |
07/10/2013 | CN203050612U Well cementation rubber skin plug |
07/10/2013 | CN203050611U Open-type cement injection apparatus |
07/10/2013 | CN203050610U Integrated electro-hydraulic bridge plug feeding tool |
07/10/2013 | CN203050609U Double-slip type packer |
07/10/2013 | CN203050608U Underground electric control compression packer |
07/10/2013 | CN203050607U Pipe column plugging device |
07/10/2013 | CN203050606U Large-drift-diameter open-hole packer |
07/10/2013 | CN203050605U Horizontal well section tubular column blanking plug |
07/10/2013 | CN203050604U Multi-setting device of packer |
07/10/2013 | CN203050603U Setting device capable of repeatedly pressurizing setting for pressurization packer |
07/10/2013 | CN203050602U Boring waterproof device |
07/10/2013 | CN203050601U High-pressure anti-spray orifice device for probe drilling water |