| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 03/16/2007 | CA2520758A1 Rotating polished rod guide |
| 03/15/2007 | WO2007028982A1 Subsea pipeline end & drilling guide frame assembly |
| 03/15/2007 | WO2007028946A1 Bottomhole assembly and method for stimulating a well |
| 03/15/2007 | WO2006023690A3 A modular, distributed, rov retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use |
| 03/15/2007 | WO2005016581A3 Casing cutter |
| 03/15/2007 | US20070056775 Pressure-actuated seals for rotating members |
| 03/15/2007 | US20070056774 Apparatus and methods for drilling a wellbore using casing |
| 03/15/2007 | US20070056750 Deployable Zonal Isolation System |
| 03/15/2007 | US20070056749 Dynamic Inflatable Sealing Device |
| 03/15/2007 | US20070056748 Component for a motor vehicle |
| 03/15/2007 | US20070056747 Seal assembly energized with floating pistons |
| 03/15/2007 | US20070056735 Swelleable body arranged in the wellbore in a manner so as to seal space upon swelling; being in contact with formation water flowing into the wellbore, matrix material provided with a compound soluble in the formation water; matrix material sprevents or restricts migration |
| 03/15/2007 | US20070056734 Methods of using settable compositions comprising cement kiln dust and additive(s) |
| 03/15/2007 | US20070056733 Introducing the foamed settable formulation into a location to be cemented; allowing to form a hardened mass |
| 03/15/2007 | US20070056732 Cementing compositions comprising cement kiln dust, vitrified shale, zeolite, and/or amorphous silica utilizing a packing volume fraction, and associated methods |
| 03/15/2007 | US20070056731 Method for reducing density of a system fluid and for performing drilling operations using a reduced density system fluid comprising aerogel |
| 03/15/2007 | US20070056730 Well treating method to prevent or cure lost-circulation |
| 03/15/2007 | US20070056728 Methods of using settable compositions comprising cement kiln dust |
| 03/15/2007 | US20070056725 Seal assembly |
| 03/14/2007 | EP1762696A2 Iinternal riser rotating control head |
| 03/14/2007 | EP1761680A1 Improved well servicing tool storage system for subsea well intervention |
| 03/14/2007 | EP1642001A4 Removable seal carrier for blowout preventer bonnet assembly |
| 03/14/2007 | EP1392953B1 Line hanger, running tool and method |
| 03/14/2007 | CN2878663Y Constant pressure valve and anti-spray device for bushing |
| 03/14/2007 | CN2878662Y Plugging device for oil water well |
| 03/14/2007 | CN2878661Y Hydraulic anti-spray box |
| 03/14/2007 | CN2878660Y Anti-spray alarming anti-falling device for multi-functional well mouth |
| 03/14/2007 | CN2878659Y Environmental anti-spray device for oil well test |
| 03/14/2007 | CN2878658Y Drilling/further drilling/back drilling sealing device for high-pressure cryolaccolith layer |
| 03/14/2007 | CN1930365A System for sealing an annular space in a wellbore |
| 03/14/2007 | CN1930364A System for sealing an annular space in a wellbore |
| 03/14/2007 | CN1930361A A method and device for establishing an underground well |
| 03/14/2007 | CN1928319A Filling and leakage blocking process for cracking leak gravel |
| 03/14/2007 | CN1304725C Rotational platform for blowout preventer bonnets and method of approaching flashboard of the same |
| 03/14/2007 | CN1304724C Device for performing a downhole operation in well formed in stratum |
| 03/14/2007 | CA2515556A1 Uppers plug |
| 03/13/2007 | USRE39509 Top entry sub arrangement |
| 03/13/2007 | US7188687 Downhole filter |
| 03/13/2007 | US7188683 Drilling method |
| 03/13/2007 | US7188677 Tensioning system for production tubing in a riser at a floating installation for hydrocarbon production |
| 03/13/2007 | US7188673 Process for reducing the production of water in oil wells |
| 03/13/2007 | CA2518225A1 Sure plug |
| 03/13/2007 | CA2454840C High expansion non-elastomeric straddle tool |
| 03/13/2007 | CA2448434C Plug-dropping container for releasing a plug into a wellbore |
| 03/13/2007 | CA2295466C Lateral well tie-back method and apparatus |
| 03/08/2007 | WO2007027228A1 Slotted slip element for expandable packer |
| 03/08/2007 | WO2007027080A2 Control system for seabed processing system |
| 03/08/2007 | US20070051521 Retrievable frac packer |
| 03/08/2007 | US20070051518 Method of supplying oil from a floating production structure to an offloading buoy via a thermally insulated flexible transfer duct |
| 03/08/2007 | US20070051517 Bottomhole assembly and method for stimulating a well |
| 03/08/2007 | US20070051516 cementing wells using a mixture of calcium phosphate or aluminate, water and minerals selected from mica or vermiculite, and optionally wollastonite, basalt, carbon fibers or plastic fibers |
| 03/08/2007 | US20070051515 Placing a cementitious composition of a carrier fluid, and cement clinker with zeolite and gypsum, allowing to set; sealing a subterranean zone penetrated by a wellbore |
| 03/08/2007 | US20070051514 Method and apparatus for well casing repair and plugging utilizing molten metal |
| 03/07/2007 | EP1760252A1 Intervention device for a subsea well, and method and cable for use with the device |
| 03/07/2007 | EP1664480B1 Dual function cement additive |
| 03/07/2007 | CN2876321Y Land well antitheft valve |
| 03/07/2007 | CN2876319Y High pressure drillable bridge plug for preventing middle way seat sealing |
| 03/07/2007 | CN2876318Y Admissible drillable high pressure bridge plug |
| 03/07/2007 | CN2876317Y Locking type washable well packer and corollary used well washing valve switching tool |
| 03/07/2007 | CN1924287A Plug-free cement filling method for well fixing |
| 03/07/2007 | CN1303310C Method for water searching and blocking for oil well |
| 03/01/2007 | WO2007024372A2 Inner guide seal assembly for a ram type bop system |
| 03/01/2007 | WO2007022834A1 Method and apparatus to set a plug in a wellbore |
| 03/01/2007 | WO2006034251A3 Expandable seal |
| 03/01/2007 | WO2006014895A3 Shearing sealing ram |
| 03/01/2007 | US20070044977 Packer |
| 03/01/2007 | US20070044976 Inner guide seal assembly for a ram type BOP system |
| 03/01/2007 | US20070044969 Perforating a Well Formation |
| 03/01/2007 | US20070044967 Injecting into a well a hydrophobically-aggregating gelling agent of hydrophilic and hydrophobic monomer units and an inhibitor which suppresses hydrophobic aggregation of the gelling agent and is soluble in water but insoluble in hydrocarbons; controling the flow of water into oil wells |
| 03/01/2007 | US20070044966 Methods of Forming Acid Particle Based Packers for Wellbores |
| 03/01/2007 | US20070044961 Oil well completion by introducing a crosslinkable mixture of chitosan, a reactive polymer and a phenol source (phloroglucinol dihydrate) into a portion of a subterranean formation and allowing it to form a crosslinked gel; gelation-retarding additive; thermal stability |
| 03/01/2007 | US20070044958 Well Operating Elements Comprising a Soluble Component and Methods of Use |
| 03/01/2007 | US20070044956 Annular Choke |
| 03/01/2007 | CA2619483A1 Inner guide seal assembly for a ram type bop system |
| 02/28/2007 | EP1757770A1 Method and apparatus to set a plug in a wellbore |
| 02/28/2007 | EP1756397A1 Plug setting and retrieving apparatus |
| 02/28/2007 | EP1756396A1 Geosynthetic composite for borehole strengthening |
| 02/28/2007 | EP1756395A1 A method and a device for expanding a body under overpressure |
| 02/28/2007 | CN2874012Y Packer using block core expansion |
| 02/28/2007 | CN2874011Y Anti-breaking wellhead collar clamp |
| 02/28/2007 | CN2874010Y Anti-theft house of oil field well head |
| 02/28/2007 | CN1920246A System and method for completing a subterranean well |
| 02/28/2007 | CN1920245A Geological observation well mouth apparatus with exploitation process of thick oil steam drive gravity for oil leakage |
| 02/28/2007 | CN1920244A Two-power two-sealing sing-valve two-control type well mouth device for oil injection and production |
| 02/28/2007 | CA2517773A1 Pipe alignment apparatus |
| 02/27/2007 | US7182142 Downhole apparatus |
| 02/27/2007 | US7182137 Cementitious compositions containing interground cement clinker and zeolite |
| 02/27/2007 | US7182136 Methods of reducing water permeability for acidizing a subterranean formation |
| 02/27/2007 | US7182135 Plug systems and methods for using plugs in subterranean formations |
| 02/27/2007 | CA2356194C Procedures and equipment for profiling and jointing of pipes |
| 02/23/2007 | CA2555726A1 Environmentally friendly defoamer |
| 02/22/2007 | WO2007021422A2 Triple valve blow out preventer |
| 02/22/2007 | WO2007021337A1 Vertical annular separation and pumping system with outer annulus liquid discharge arrangement |
| 02/22/2007 | WO2007021198A1 Device for conducting cementing operations and inflow regulation |
| 02/22/2007 | WO2006121928A3 Tubular runing tool and method of using same |
| 02/22/2007 | WO2006058244A3 Shear/seal ram assembly for a ram-type blowout prevention system |
| 02/22/2007 | US20070039738 Orientation-less ultra-slim well and completion system |
| 02/22/2007 | US20070039735 Methods of sealing subterranean formations using rapid setting plugging compositions |
| 02/22/2007 | US20070039734 Strength retrogression preventer |
| 02/22/2007 | US20070039732 Methods and compositions for improving hydrocarbon recovery by water flood intervention |