| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 07/28/2004 | CN2628720Y Water distribution packer |
| 07/28/2004 | CN2628719Y Blow-out preventer |
| 07/28/2004 | CN2628718Y Safety locking device for hydraulic ram blosout preventer |
| 07/28/2004 | CN2628717Y External thickened oil pipe hanger body |
| 07/28/2004 | CN2628716Y Antipollution device for oil well operating sucker rod |
| 07/28/2004 | CN2628715Y Recoverable antitheft well surface sealing appartus |
| 07/28/2004 | CN2628714Y Decompressible thread packer |
| 07/28/2004 | CN2628711Y Thermal flashing supporting slips |
| 07/27/2004 | US6766861 Stackable guide funnel system and method |
| 07/27/2004 | US6766858 Method for managing the production of a well |
| 07/27/2004 | CA2444588C High temperature, high pressure retrievable packer |
| 07/27/2004 | CA2366693C Wellhead stuffing box support assembly |
| 07/22/2004 | WO2004061265A1 Alternative packer setting method |
| 07/22/2004 | WO2004061264A1 Wellhead completion system having a horizontal control penetrator and method of using same |
| 07/22/2004 | WO2004041455A3 Vacuum assisted seal engagement for rov deployed equipment |
| 07/22/2004 | US20040140128 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 07/22/2004 | US20040140125 Orientation system for a subsea well |
| 07/22/2004 | US20040140124 Drilling and producing deep water subsea wells |
| 07/22/2004 | DE10222684B4 Hydraulisches Unterwasser-Blindkupplungsteil Hydraulic Underwater dummy coupling part |
| 07/21/2004 | EP1438482A2 Cementing system for wellbores |
| 07/21/2004 | EP1438366A1 Drilling fluids |
| 07/21/2004 | CN2627210Y Vehicle mounted liquid preparation device |
| 07/21/2004 | CN2627209Y Compression type small diameter water blocking packer |
| 07/21/2004 | CN2627208Y Pipe column sealing arrangement |
| 07/21/2004 | CN2627207Y Special-purpose blanking plug for plugging |
| 07/21/2004 | CN2627206Y Oil field well uniflow eccentric water blocking switch |
| 07/21/2004 | CN2627205Y Novel lower plug indicator for cementing-head apparatus |
| 07/21/2004 | CN2627204Y Sealing section with three leather cups |
| 07/21/2004 | CN2627203Y Pumping well polished rod sealing device capable of automatic deflection adjustment and compensation |
| 07/21/2004 | CN2627195Y Lose-hand device for oil extraction well narrow-bore water blocking tube |
| 07/21/2004 | CN1514905A In-situ casting of well equipment |
| 07/20/2004 | US6764103 Method and apparatus for locking a tubular quick coupling |
| 07/20/2004 | US6763891 Production tree with multiple safety barriers |
| 07/20/2004 | US6763889 Subsea intervention |
| 07/20/2004 | US6763882 Insulated casing and tubing hangers |
| 07/20/2004 | CA2252297C Plug release indication method |
| 07/20/2004 | CA2217293C Mechanism for anchoring a well tool |
| 07/20/2004 | CA2173320C Method and apparatus for sealing and transferring force in a wellbore |
| 07/17/2004 | CA2455249A1 Crosslinking delaying agents for acid fluids |
| 07/15/2004 | WO2004059118A1 Mounts for blowout preventer bonnets |
| 07/15/2004 | WO2004029487A3 Metal seal with corrosion resistant alloy overlay |
| 07/15/2004 | WO2003095872A3 Metal end cap seal with o-rings |
| 07/15/2004 | WO2003014604A3 Method and apparatus for replacing bop with gate valve |
| 07/15/2004 | US20040135112 Pressurized seal arrangement |
| 07/15/2004 | US20040134666 Blow out preventer handling system |
| 07/15/2004 | US20040134665 Actuator for well-head valve or other similar applications and system incorporating same |
| 07/15/2004 | US20040134662 High power umbilicals for electric flowline immersion heating of produced hydrocarbons |
| 07/15/2004 | US20040134659 High expansion non-elastomeric straddle tool |
| 07/15/2004 | DE10355988A1 System zur Verwendung bei der Steuerung einer Kohlenwasserstoff-Gewinnungsquelle System for use in the control of a hydrocarbon production Source |
| 07/14/2004 | EP1437480A1 High expansion non-elastomeric straddle tool |
| 07/14/2004 | EP1436482A2 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles |
| 07/14/2004 | CN2625572Y Down-hole inner tube stepped cementing device |
| 07/14/2004 | CN2625571Y Impacting seat for well cementing |
| 07/14/2004 | CN2625570Y Classification hoop for down-hole inner tube cementing |
| 07/14/2004 | CN2625569Y Impacting shearing device for tail pipe well completion |
| 07/14/2004 | CN2625568Y Acidifying inverse discharging protecting packer |
| 07/14/2004 | CN2625567Y Jacket type unidirectional ball throwing stop |
| 07/14/2004 | CN2625566Y Multi-stage stratified waterflooding ball throwing stop |
| 07/14/2004 | CN2625565Y Two-stage casing head |
| 07/14/2004 | CN2625564Y Seal protection device for slick rod |
| 07/14/2004 | CN2625563Y Anti-theft device for wall head |
| 07/14/2004 | CN2625562Y Roller type centralizer for pump well slick rod |
| 07/13/2004 | US6761222 Packer system |
| 07/13/2004 | CA2322075C Packer with equalizing valve and method of use |
| 07/13/2004 | CA2258659C Chip resistant buttons for downhole tools having slip elements |
| 07/13/2004 | CA2199232C High temperature, high pressure retrievable packer |
| 07/13/2004 | CA2114785C Subsea wellhead |
| 07/08/2004 | WO2004057715A2 A cable duct device in a swelling packer |
| 07/08/2004 | WO2004057151A1 Wellbore consolidating tool for rotary drilling applications |
| 07/08/2004 | WO2004057147A2 Tensioning system for production tubing in a riser at a floating installation for hydrocarbon production. |
| 07/08/2004 | WO2003081360A3 Apparatus for controlling the annulus of an inner string and casing string |
| 07/08/2004 | US20040129456 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 07/08/2004 | US20040129433 Subsurface annular safety barrier |
| 07/08/2004 | US20040129432 Emergency deflate mechanism for inflatable packer assemblies |
| 07/08/2004 | US20040129429 Backpressure adapter pin and methods of use |
| 07/08/2004 | US20040129422 Apparatus and method for wellbore isolation |
| 07/08/2004 | US20040129421 Filtered actuator port for hydraulically actuated downhole tools |
| 07/07/2004 | CN2623869Y Packer for oil field water injection well |
| 07/06/2004 | US6758278 Forming a wellbore casing while simultaneously drilling a wellbore |
| 07/06/2004 | US6758274 Sample extraction system for boreholes |
| 07/06/2004 | CA2326532C Rotating connector with compensating unit |
| 07/06/2004 | CA2193309C Early evaluation system with pump and method of servicing a well |
| 07/03/2004 | CA2415631A1 Backpressure adapter pin and method of use |
| 07/01/2004 | WO2004055950A1 Feedthrough of an electrical conductor |
| 07/01/2004 | WO2004055318A2 Horizontal spool tree with improved porting |
| 07/01/2004 | WO2004001190B1 Subsea well apparatus |
| 07/01/2004 | WO2003027432A3 Erosion resistant drilling head assembly |
| 07/01/2004 | US20040127084 Connector |
| 07/01/2004 | US20040124380 Articulated slip ram for tapered coiled tubing |
| 07/01/2004 | US20040124015 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 07/01/2004 | US20040124008 Subsea wellbore drilling system for reducing bottom hole pressure |
| 07/01/2004 | US20040123988 Wellhead |
| 07/01/2004 | US20040123984 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 07/01/2004 | US20040123983 Isolation of subterranean zones |
| 06/30/2004 | CN2622386Y Fluidmaster for well cementing |
| 06/30/2004 | CN2622385Y Double-automatic pump seal device |
| 06/30/2004 | CN2622384Y Blocking tool for eccentric water distributor used in blowout preventing work of water injection well |
| 06/30/2004 | CN2622383Y Drill followed rotating self-adapted composite seal for blowout preventer |
| 06/30/2004 | CN2622382Y Multi-functon smooth rod seal device |
| 06/30/2004 | CN1508380A Ultrashort curvature leve well drilling and completion method and apparatus thereof |