| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 12/30/2004 | US20040261990 Wellbore system with annular seal member |
| 12/29/2004 | WO2004113158A2 Lightweight and compact subsea intervention package and method |
| 12/29/2004 | WO2004072434A3 Methods and apparatus for wellbore construction and completion |
| 12/29/2004 | EP1491717A2 Choke and kill line systems for blowout preventers |
| 12/29/2004 | EP1491714A2 Multilateral well drilling and completion method and appratus |
| 12/29/2004 | EP1203424B1 Electrical connectors |
| 12/29/2004 | EP1175550B1 Inflatable packer setting tool assembly |
| 12/29/2004 | CN2667148Y Adjustable multifunction well packing device |
| 12/29/2004 | CN2667147Y Non-well killing servicing machine |
| 12/28/2004 | US6834727 Emergency deflate mechanism and method for inflatable packer assemblies |
| 12/28/2004 | US6834725 Reinforced swelling elastomer seal element on expandable tubular |
| 12/28/2004 | US6834724 System for accessing oil wells with compliant guide and coiled tubing |
| 12/28/2004 | US6834721 System for disconnecting coiled tubing |
| 12/28/2004 | US6834720 Method and apparatus for injecting particulate media into the ground |
| 12/28/2004 | US6834719 Drillpipe sub |
| 12/28/2004 | US6834718 Casing head connector with landing base |
| 12/28/2004 | US6834717 Tubing rotator |
| 12/28/2004 | US6834680 Method of purging liquids from piston accumulators |
| 12/28/2004 | CA2443311C Expandable radially reduced tubular member |
| 12/28/2004 | CA2283978C Self aligning stuffing box for pumpjacks |
| 12/23/2004 | WO2004111380A2 Wellhead assembly with pressure actuated seal assembly and running tool |
| 12/23/2004 | WO2004111379A2 Removable seal carrier for blowout preventer bonnet assembly |
| 12/23/2004 | WO2004092526A3 Downhole polymer plug and liner and methods employing same |
| 12/23/2004 | US20040258470 Removable seal carrier for blowout preventer bonnet assembly |
| 12/23/2004 | US20040256161 Modular design for downhole ECD-management devices and related methods |
| 12/23/2004 | US20040256160 Mud diverter and method for horizontal drilling |
| 12/23/2004 | US20040256157 Method and apparatus for drilling a borehole with a borehole liner |
| 12/23/2004 | US20040256154 Process and system for drilling and lining a bore hole |
| 12/23/2004 | US20040256115 Expansion set packer with bias assist |
| 12/23/2004 | US20040256114 Shear activated inflation fluid system for inflatable packers |
| 12/23/2004 | US20040256112 Expandable tubulars |
| 12/23/2004 | US20040256107 Choke and kill line systems for blowout preventers |
| 12/23/2004 | US20040256100 Method and apparatus of providing an optical fiber along a power supply line |
| 12/23/2004 | US20040256096 Breechblock connectors for use with oil field lines and oil field equipment |
| 12/22/2004 | EP1488074A1 Sealing method and apparatus |
| 12/22/2004 | EP1276955B1 Central circulation completion system |
| 12/22/2004 | CN2665353Y Large incline grade deep mine packer |
| 12/22/2004 | CN2665352Y Multifunctional measuring plug |
| 12/22/2004 | CN2665351Y All-purpose high-pressure portable self-sealing closure |
| 12/22/2004 | CN2665350Y Well head anti-theft case |
| 12/22/2004 | CN2665348Y Well pumping unit pressure type disc root adding specific appliance |
| 12/22/2004 | CN2664850Y Portable packing set detaching device |
| 12/21/2004 | US6832874 Modular seabed processing system |
| 12/21/2004 | US6832654 Bottom hole assembly |
| 12/21/2004 | US6832652 Ultra low density cementitious slurries for use in cementing of oil and gas wells |
| 12/21/2004 | CA2381620C Straddle packer tool for well treating having valving and fluid bypass system |
| 12/16/2004 | WO2004109055A1 Expansion set packer |
| 12/16/2004 | WO2004027202B1 Inner riser adjustable hanger and seal assembly |
| 12/16/2004 | WO2003106130B1 Collapsible expansion cone |
| 12/16/2004 | US20040251036 Well operations system |
| 12/16/2004 | US20040251034 Mono-diameter wellbore casing |
| 12/16/2004 | US20040251032 Apparatus and methods for utilizing a downhole deployment valve |
| 12/16/2004 | US20040251031 Wellhead assembly with pressure actuated seal assembly and running tool |
| 12/16/2004 | US20040251030 Single well development system |
| 12/16/2004 | US20040251026 Cementing compositions and application of such compositions for cementing oil wells or the like |
| 12/16/2004 | US20040251025 Single-direction cementing plug |
| 12/16/2004 | US20040251024 Single trip perforation/packing method |
| 12/16/2004 | US20040251023 Downhole surge pressure reduction and filtering apparatus |
| 12/16/2004 | US20040251018 Abrasion resistant frac head |
| 12/15/2004 | EP1485571A1 A triggering mechanism for disconnecting a riser from a riser connector |
| 12/15/2004 | EP1060320A4 Method and apparatus for drilling a borehole into a subsea abnormal pore pressure environment |
| 12/15/2004 | CN2663649Y High pressure deep well water filling packer |
| 12/15/2004 | CN2663648Y Front seal assembly of ram block |
| 12/15/2004 | CN2663647Y Casing assembly of ram blowout preventer |
| 12/15/2004 | CN2663646Y Multifunctional well head |
| 12/15/2004 | CN2663645Y Lubricating device of polished rod seal box |
| 12/15/2004 | CN1554855A Method for water searching and blocking for oil well |
| 12/14/2004 | CA2330105C Method and apparatus for sealing between casing and wellhead connector structure |
| 12/14/2004 | CA2314412C Stripper packer |
| 12/14/2004 | CA2296975C Pull-through tubing string rotator for an oil well |
| 12/14/2004 | CA2245614C Well casing sealing device |
| 12/14/2004 | CA2242445C Slip retaining system for downhole tools |
| 12/14/2004 | CA2231904C Methods of sealing subterranean zones |
| 12/14/2004 | CA2224917C Improved bridge plug for a well bore |
| 12/14/2004 | CA2205728C Inflatable packer with port collar valving |
| 12/12/2004 | CA2470960A1 Cement float |
| 12/09/2004 | WO2004106695A1 Subsea wireline lubricator |
| 12/09/2004 | WO2003067135A3 Externally actuated subsea wellhead tieback connector |
| 12/09/2004 | US20040245020 Apparatus and methods for drilling a wellbore using casing |
| 12/09/2004 | US20040244982 Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons |
| 12/09/2004 | US20040244977 Mixture of zeolite, cement and flow control agent; well completion |
| 12/09/2004 | US20040244970 Determination of thermal properties of a formation |
| 12/09/2004 | US20040244966 Slip system for retrievable packer |
| 12/08/2004 | EP1141517B1 Drilling method |
| 12/08/2004 | EP1092078B1 Flying lead workover interface system |
| 12/08/2004 | CN2661910Y Cementing plug device |
| 12/08/2004 | CN2661909Y Instant grouting and unfreezing device |
| 12/08/2004 | CN2661908Y Pressing crack packer |
| 12/08/2004 | CN2661907Y Hydraulic type adhesive tape seal blowout preventing box |
| 12/08/2004 | CN1552793A Pre-crosslinked granular plugging agent and its production |
| 12/08/2004 | CN1179114C Quick workover process for oil well |
| 12/07/2004 | US6828547 Wellbores utilizing fiber optic-based sensors and operating devices |
| 12/07/2004 | US6828531 Oil and gas well alloy squeezing method and apparatus |
| 12/07/2004 | US6827150 High expansion packer |
| 12/07/2004 | US6827147 Reciprocating lubricator |
| 12/07/2004 | CA2363710C Spool for pressure containment used in rigless well completion, re-completion, servicing or workover |
| 12/03/2004 | CA2430724A1 Annulus isolation valve |
| 12/02/2004 | WO2004104560A2 Formation-based interpretation of nmr data for carbonate reservoirs |
| 12/02/2004 | WO2004104366A1 Reverse circulation cementing process |
| 12/02/2004 | WO2004104365A1 Low profile connector |