| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 07/06/2006 | US20060144593 Methods of sequentially injecting different sealant compositions into a wellbore to improve zonal isolation |
| 07/06/2006 | US20060144591 Method and apparatus for repair of wells utilizing meltable repair materials and exothermic reactants as heating agents |
| 07/06/2006 | CA2784248A1 Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications |
| 07/05/2006 | CN2793313Y Leaking stoppage simulated experimental device of drill well |
| 07/05/2006 | CN2793312Y Disposable seated packer |
| 07/05/2006 | CN2793311Y Complicated shape packing box |
| 07/05/2006 | CN2793310Y Built-in gland safety oil packing box with double layers |
| 07/05/2006 | CN2793309Y Natural gas well mouth resetting safety protector |
| 07/04/2006 | US7070360 Apparatus and method |
| 07/04/2006 | US7070001 Expandable sealing apparatus |
| 07/04/2006 | US7069995 Remedial system to flush contaminants from tubing string |
| 07/04/2006 | US7069992 Mono-trip cement thru completion |
| 07/04/2006 | US7069991 Method and apparatus for surge pressure reduction in a tool with fluid motivator |
| 07/04/2006 | US7069988 Flow completion system |
| 07/04/2006 | US7069987 Casing adapter tool for well servicing |
| 07/04/2006 | CA2452907C Expansion assembly for a tubular expander tool, and method of tubular expansion |
| 07/04/2006 | CA2428479C Apparatus and methods for separating and joining tubulars in a wellbore |
| 07/04/2006 | CA2331915C Rod hanger and clamp assembly |
| 07/04/2006 | CA2296357C Methods for deposition of materials in underground reservoirs |
| 06/29/2006 | WO2006069088A1 Method and system for cleaning a well bore |
| 06/29/2006 | WO2006068873A1 Modular actuator for subsea valves and equipment, and methods of using same |
| 06/29/2006 | WO2006067740A1 Preloaded tubular connector |
| 06/29/2006 | US20060137881 One-way valve for a side pocket mandrel of a gas lift system |
| 06/29/2006 | US20060137876 Zeolite compositions having enhanced compressive strength |
| 06/29/2006 | CA2591391A1 Preloaded tubular connector |
| 06/28/2006 | EP1466072B1 Inflatable packing element |
| 06/28/2006 | EP1179116B9 Recovery of production fluids from an oil or gas well |
| 06/28/2006 | CN2791243Y Equipotential self-balanced oil pump for clustertype well |
| 06/28/2006 | CN2791239Y Progressive polish rod sealer |
| 06/28/2006 | CN1793601A Casing outside packer auto-pressurizing double-block high pressure layer well cementation tech. |
| 06/27/2006 | US7067004 Slurry of water and grout; one-package; mixture of bentonite, silica and graphite flakes; heat exchanging loop in soil; supplying slurry |
| 06/27/2006 | US7066284 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 06/27/2006 | US7066269 Casing mandrel with well stimulation tool and tubing head spool for use with the casing mandrel |
| 06/27/2006 | US7066266 Method of treating oil and gas wells |
| 06/27/2006 | US7066265 System and method of production enhancement and completion of a well |
| 06/27/2006 | US7066259 Bore isolation |
| 06/27/2006 | US7066256 Apparatus and method of detecting interfaces between well fluids |
| 06/27/2006 | US7066252 Erosion resistant, self and/or artificial external cleaning solid exclusion system |
| 06/27/2006 | US7066249 Cementing manifold assembly |
| 06/27/2006 | CA2411129C Method of sealing pressure within a blowout preventer and a blowout preventer |
| 06/22/2006 | WO2006065144A1 A method and a device for sealing a void incompletely filled with a cast material |
| 06/22/2006 | WO2006064184A1 Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore |
| 06/22/2006 | WO2006063988A1 Wellbore system extending through a salt layer |
| 06/22/2006 | WO2006063986A1 Method of sealing an annular space in a wellbore |
| 06/22/2006 | WO2005052316A3 Molded foam plugs, plug systems and methods of using same |
| 06/22/2006 | US20060131019 Methods of using cement compositions comprising phosphate compounds in subterranean formations |
| 06/22/2006 | US20060131018 Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore |
| 06/22/2006 | US20060131012 Remediation of subterranean formations using vibrational waves and consolidating agents |
| 06/22/2006 | CA2588008A1 Method of sealing an annular space in a wellbore |
| 06/22/2006 | CA2587939A1 Wellbore system extending through a salt layer |
| 06/21/2006 | EP1672166A1 Well packing |
| 06/21/2006 | EP1671012A1 Oil-well cement slurry |
| 06/21/2006 | EP1454032B1 Method and device for injecting a fluid into a formation |
| 06/21/2006 | EP1278935B1 Tubing head seal assembly |
| 06/21/2006 | CN2789407Y Automatic grouting circulating apparatus for casing operation |
| 06/21/2006 | CN2789406Y High pressure resisting packer |
| 06/21/2006 | CN2789405Y Single-stage assembling cashinghead |
| 06/21/2006 | CN2789404Y Polished rod sealer packing oil leakage recovery blowout preventer |
| 06/21/2006 | CN2789403Y Pumping well head multifunction safety sealing box and special tool thereof |
| 06/21/2006 | CN1789657A Well head device for thick oil extraction by horizontal well SAGD process |
| 06/20/2006 | US7063164 System and method to seal by bringing the wall of a wellbore into sealing contact with a tubing |
| 06/20/2006 | US7063160 Non-orienting tubing hanger system with a flow cage |
| 06/20/2006 | US7063159 Multi-purpose coiled tubing handling system |
| 06/20/2006 | US7063157 Apparatus and method for installation of subsea well completion systems |
| 06/20/2006 | US7063153 fluid loss control polymer additive from an unsaturated sulfonic acid, unsaturated carboxy acid or anhydride, vinyl amide, hydrocarbylenebis- acrylate or acrylamide, and optionally an unsaturated ether or allyl alcohol |
| 06/20/2006 | US7063152 Model HCCV hydrostatic closed circulation valve |
| 06/20/2006 | US7063142 Method of applying an axial force to an expansion cone |
| 06/20/2006 | US7062960 Blow out preventer testing apparatus |
| 06/15/2006 | WO2006062512A1 Deepwater seal test apparatus |
| 06/15/2006 | WO2006062433A1 Well abandonment method |
| 06/15/2006 | WO2006061645A1 Plug installation and retrieval tool for subsea wells |
| 06/15/2006 | US20060124352 Control systems and methods for active controlled bottomhole pressure systems |
| 06/15/2006 | US20060124314 Assembly and a method for intervention of a subsea well |
| 06/15/2006 | US20060124307 Retrievable bridge plug |
| 06/15/2006 | US20060124306 Installation of one-way valve after removal of retrievable drill bit to complete oil and gas wells |
| 06/15/2006 | US20060124305 Pipe running tool having a cement path |
| 06/15/2006 | US20060124304 Method of creating a zonal isolation in an underground wellbore |
| 06/14/2006 | EP1669540A1 Device for controlling fluid communication in a wellbore |
| 06/14/2006 | EP1101012A4 Mechanism for dropping a plurality of balls into tubulars used in drilling, completion and workover of oil, gas and geothermal wells, and method of using same |
| 06/14/2006 | CN2787827Y Device for increasing water flooding horizon of water flooding well |
| 06/14/2006 | CN2787823Y Cement injecting tool for absorption well |
| 06/14/2006 | CN2787822Y Step-by-step releasable packer |
| 06/14/2006 | CN2787821Y Installing stub for square drill rod |
| 06/14/2006 | CN2787820Y Well mouth anti-theft device |
| 06/14/2006 | CN1788066A Well-treating method to prevent or cure lost-circulation |
| 06/13/2006 | US7060129 Displacement of gelling additive to well bore; crosslinking; forming barrier |
| 06/13/2006 | US7059418 Pressurized seal arrangement |
| 06/13/2006 | US7059415 Wellbore system with annular seal member |
| 06/13/2006 | US7059410 Method and system for reducing longitudinal fluid flow around a permeable well |
| 06/13/2006 | US7059409 Methods of cementing and cement compositions containing a polymeric cement cohesion additive |
| 06/13/2006 | US7059408 Methods of reducing the impact of a formate-based drilling fluid comprising an alkaline buffering agent on a cement slurry |
| 06/13/2006 | US7059407 Method and apparatus for stimulation of multiple formation intervals |
| 06/13/2006 | US7059406 Production-enhancing completion methods |
| 06/13/2006 | CA2368339C Tubing hanger and adapter assembly |
| 06/13/2006 | CA2117276C Oilwells cement slurries, their preparation and their use in well cementing operation |
| 06/08/2006 | WO2006059147A1 Apparatus and method for guiding pipe |
| 06/08/2006 | WO2006059146A1 Elevator for use in handling pipe and method for handling pipe |
| 06/08/2006 | WO2005079403A3 System for controlling a hydraulic actuator, and methods of using same |
| 06/08/2006 | US20060122069 Well plug additive, well plug treatment fluid made therefrom, and method of plugging a well |
| 06/08/2006 | US20060118310 Subsea petroleum production system method of installation and use of the same |