| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 03/03/2011 | WO2010135492A3 Swelling packer and method of construction |
| 03/03/2011 | WO2009112530A3 A tool for shutting off openings or leaks in a well bore |
| 03/03/2011 | US20110048744 Expandable Gage Ring |
| 03/03/2011 | US20110048743 Dissolvable bridge plug |
| 03/03/2011 | US20110048742 Downhole Safety Valve Having Flapper and Protected Opening Procedure |
| 03/03/2011 | US20110048740 Securing a composite bridge plug |
| 03/03/2011 | US20110048736 Crane Device and Method |
| 03/03/2011 | US20110048726 Internal tree cap and itc running tool |
| 03/03/2011 | US20110048715 Radiation-Induced Thickening for Set-On-Command Sealant Compositions and Methods of Use |
| 03/03/2011 | US20110048714 Homogenous synthetic mud-to-cement cementing glasses |
| 03/03/2011 | US20110048713 Radiation-Induced Triggering for Set-On-Command Compositions and Methods of Use |
| 03/03/2011 | US20110048712 Method and apparatus for dropping a pump down plug or ball |
| 03/03/2011 | US20110048711 Methods of sonically activating cement compositions |
| 03/03/2011 | US20110048710 Method and apparatus for performing cementing operations on top drive rigs. |
| 03/03/2011 | US20110048709 Cement Compositions and Associated Methods Comprising Sub-Micron Calcium Carbonate and Latex |
| 03/03/2011 | US20110048708 Methods of Fluid Placement and Diversion in Subterranean Formations |
| 03/03/2011 | CA2771698A1 Activating compositions in subterranean zones |
| 03/03/2011 | CA2771629A1 Methods and apparatus for releasing a chemical into a well bore upon command |
| 03/03/2011 | CA2771626A1 Methods of activating compositions in subterranean zones |
| 03/03/2011 | CA2771199A1 Casing head connector |
| 03/03/2011 | CA2770208A1 Selective placement of conformance treatments in multi-zone well completions |
| 03/03/2011 | CA2715700A1 Methods for servicing subterranean wells |
| 03/02/2011 | EP2290192A1 Apparatus and method for autofill equipment activation |
| 03/02/2011 | EP2290191A2 Method and plugging material for reducing formation fluid migration in wells |
| 03/02/2011 | EP2288788A2 Continuous fibers for use in well completion, intervention, and other subterranean applications |
| 03/02/2011 | EP2288785A1 Plug release apparatus |
| 03/02/2011 | EP2288631A1 Novel method for the treatment of rock formations and novel polyampholytes |
| 03/02/2011 | CN201753593U Outer hanged type hydraulic control box of blowout preventer |
| 03/01/2011 | US7896091 Convertible seal |
| 03/01/2011 | US7896090 Stroking tool using at least one packer cup |
| 03/01/2011 | US7896089 System and method for forming a seal in a wellbore |
| 03/01/2011 | US7896086 Logging tool deployment systems and methods without pressure compensation |
| 03/01/2011 | US7896085 Downhole apparatus with a swellable support structure |
| 03/01/2011 | US7896083 Pivoted rail-based assembly and transport system for well-head equipment |
| 03/01/2011 | US7896078 Method of using crosslinkable brine containing compositions |
| 03/01/2011 | US7896076 Rheology modifier for cement slurries |
| 03/01/2011 | US7896070 Providing an expandable sealing element having a slot to receive a sensor array |
| 03/01/2011 | US7896068 Activation mechanism applicable for oilfield chemicals products |
| 02/28/2011 | CA2710329A1 Securing a composite bridge plug |
| 02/28/2011 | CA2677440A1 Well cap rod hanger |
| 02/24/2011 | WO2011021945A1 Vertical connector for use on the seabed |
| 02/24/2011 | WO2011021004A1 Internal retention mechanism |
| 02/24/2011 | WO2011020987A2 Pressure control device |
| 02/24/2011 | WO2011020182A1 Wellhead connection |
| 02/24/2011 | WO2010133304A3 System and method for facilitating well servicing operations |
| 02/24/2011 | WO2010129266A3 Nitinol through tubing bridge plug |
| 02/24/2011 | WO2010120469A4 Open hole frac system |
| 02/24/2011 | WO2010037993A3 Methods and equipment to improve reliability of pinpoint stimulation operations |
| 02/24/2011 | US20110042099 Remote Actuated Downhole Pressure Barrier and Method for Use of Same |
| 02/24/2011 | US20110042088 Cement composition containing inorganic and organic fibers |
| 02/24/2011 | US20110042087 Shot Perforator Device and Method for Water Well Bore Decommissioning |
| 02/24/2011 | US20110042086 Additive for controlling cement slurry rheology |
| 02/24/2011 | US20110042081 Methods and Apparatuses for Releasing a Chemical into a Well Bore Upon Command |
| 02/24/2011 | US20110042068 Internal retention mechanism |
| 02/24/2011 | US20110042067 Subsurface discrete interval system with verifiable interval isolation |
| 02/24/2011 | US20110042065 Casing head connector |
| 02/24/2011 | CA2771196A1 Wellhead connection |
| 02/24/2011 | CA2771195A1 Pressure control device |
| 02/23/2011 | EP2287440A1 Compositions and their use for sealing subterranean zones |
| 02/23/2011 | EP2287439A1 Method of completing a well |
| 02/23/2011 | EP2287438A1 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 02/23/2011 | CN201751531U Thread protecting cap of oil well packing box |
| 02/23/2011 | CN101981270A System and method for recompletion of old wells |
| 02/23/2011 | CN101979826A Method for repairing coal bed gas multi-branch horizontal accident well |
| 02/23/2011 | CN101979822A Anti-rotation device for well cementing glue plug |
| 02/23/2011 | CN101979821A Self-locking cementing stopper combination device |
| 02/23/2011 | CN101979820A Process for sealing elevation drill hole water-stopping sleeves |
| 02/23/2011 | CN101979819A Embedded high-pressure side door floating sealing device |
| 02/22/2011 | US7893011 Wellbore servicing; magnesium oxide; magnesium chloride, sodium phosphate soluble salt; quaternary amide viscosifier; quaternary amide ester; surfactant; retarder |
| 02/22/2011 | US7891440 Method and system for installing geothermal transfer apparatuses with a sonic drill and a removable or retrievable drill bit |
| 02/22/2011 | US7891434 Packer setting device for high hydrostatic applications |
| 02/22/2011 | US7891433 Resettable antiextrusion backup system and method |
| 02/22/2011 | US7891432 Apparatus and methods for setting one or more packers in a well bore |
| 02/22/2011 | US7891431 Annular packer device |
| 02/22/2011 | US7891428 Safety valve |
| 02/22/2011 | US7891425 Methods of limiting or preventing fluid flow through a portion of a subterranean formation |
| 02/22/2011 | US7891424 Methods of delivering material downhole |
| 02/22/2011 | CA2650168C Barrier seal and assembly incorporating same |
| 02/22/2011 | CA2634373C Method and means to seal the casing-by-casing annulus at the surface for reverse circulation cement jobs |
| 02/22/2011 | CA2628164C Self centralizing non-rotational slip and cone system for downhole tools |
| 02/22/2011 | CA2613861C Brine based fluid loss pills comprising crosslinked polymer gels and solid salt particles |
| 02/22/2011 | CA2611316C Wellhead bypass method and apparatus |
| 02/17/2011 | WO2011019930A1 Dual barrier plug system for a wellhead |
| 02/17/2011 | WO2011018765A2 Fiber reinforced packer |
| 02/17/2011 | WO2011018120A1 Subsea well head structure |
| 02/17/2011 | WO2011017815A1 Wellhead pipe coupling |
| 02/17/2011 | WO2010110953A3 Full bore compression sealing method |
| 02/17/2011 | US20110037231 Shaft seal for down-hole tools |
| 02/17/2011 | US20110037230 Expandable packer system |
| 02/17/2011 | US20110037229 Packing element |
| 02/17/2011 | US20110036597 Fiber Reinforced Packer |
| 02/17/2011 | US20110036596 Dual barrier plug system for a wellhead |
| 02/17/2011 | US20110036595 Direct Connecting Downhole Control System |
| 02/17/2011 | US20110036589 Wellhead connection |
| 02/17/2011 | US20110036588 Systems and Methods for Running Casing Into Wells Drilled with Dual-Gradient Mud Systems |
| 02/17/2011 | US20110036573 Methods for Swelling Swellable Elements in a Portion of a Well Using a Water-in-Oil Emulsion |
| 02/17/2011 | US20110036572 Methods for Swelling Swellable Elements in a Portion of a Well Using an Oil-in-Water Emulsion |
| 02/17/2011 | US20110036570 Method and apparatus for well casing shoe seal |
| 02/17/2011 | US20110036564 Retrievable Bridge Plug |
| 02/17/2011 | US20110036562 Well plug |