| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 02/20/2001 | US6189621 Smart shuttles to complete oil and gas wells |
| 02/20/2001 | US6189616 Expandable wellbore junction |
| 02/20/2001 | US6189612 Subsurface measurement apparatus, system, and process for improved well drilling, control, and production |
| 02/15/2001 | WO2001011187A1 Pump systems and methods |
| 02/15/2001 | WO2001011185A1 Drilling and completion system for multilateral wells |
| 02/14/2001 | EP1075582A2 Subsea mud pump |
| 02/14/2001 | CN2419369Y Oil pipe plug |
| 02/14/2001 | CN2419368Y Self locked composite packing casing |
| 02/14/2001 | CN2419367Y Flange style isolative sealer for electric cable at hole top for underground electric pump |
| 02/14/2001 | CN2419366Y Work carrier style isolative sealer for electric cable at hole top for underground electric pump |
| 02/14/2001 | CN2419365Y Sealing packing for polish rod of sucker |
| 02/13/2001 | US6188327 Subsea electronic tagging and monitoring systems |
| 02/13/2001 | US6186239 Casing annulus remediation system |
| 02/13/2001 | US6186237 Annulus check valve with tubing plug back-up |
| 02/13/2001 | US6186236 Multi-zone screenless well fracturing method and apparatus |
| 02/13/2001 | US6186227 Packer |
| 02/13/2001 | CA2222200C Spoolable coiled tubing completion system |
| 02/13/2001 | CA2222194C Spoolable coiled tubing completion system |
| 02/13/2001 | CA2222191C Spoolable coiled tubing completion system |
| 02/13/2001 | CA2222182C Spoolable coiled tubing completion system |
| 02/13/2001 | CA2222102C Spoolable coiled tubing completion system |
| 02/08/2001 | WO2001009982A1 Electrical connectors |
| 02/08/2001 | WO2001009481A1 Anti-rotation device for use with well tools |
| 02/08/2001 | WO2001009480A1 Anti-rotation device for use with well tools |
| 02/08/2001 | WO2001009056A1 A low-density and low-porosity cementing slurry for oil wells or the like |
| 02/07/2001 | CN2418252Y Thickening apparatus |
| 02/07/2001 | CN2418251Y Blowout-proof device for test of high-pressure wellhead |
| 02/06/2001 | US6184287 Polymeric latexes prepared in the presence of 2-acrylamido-2-methylpropanesulfonate |
| 02/06/2001 | US6182773 Blasthole drill having a drill pipe seal assembly |
| 02/06/2001 | US6182763 Subsea module |
| 02/06/2001 | US6182762 Storm valve |
| 02/06/2001 | US6182761 Flowline extendable pigging valve assembly |
| 02/06/2001 | US6182755 Bellow seal and anchor |
| 02/06/2001 | US6182752 Multi-port cementing head |
| 02/01/2001 | WO2001007754A1 Methods and apparatus for long term monitoring of a hydrocarbon reservoir |
| 02/01/2001 | WO2001007751A1 A wellhead arrangement |
| 02/01/2001 | WO2001007748A2 Mechanism for dropping a plurality of balls into tubulars |
| 02/01/2001 | WO2000012862A9 Hydraulic well packer |
| 01/31/2001 | EP1071862A1 Rotating subsea diverter |
| 01/31/2001 | EP1019613A4 Downhole packer |
| 01/31/2001 | CN1061415C Automatic sealing pipeless submerged pump |
| 01/30/2001 | US6179057 Apparatus and method for killing or suppressing a subsea well |
| 01/30/2001 | US6179053 Lockdown mechanism for well tools requiring fixed-point packoff |
| 01/30/2001 | US6179052 Digital-hydraulic well control system |
| 01/25/2001 | WO2001006088A1 Dowhole packer inflation control device |
| 01/25/2001 | WO2001006087A1 Extrusion resistant inflatable tool |
| 01/25/2001 | WO2000061912A3 Method of manufacturing a wall thickness program into an elastomeric tubular component for incorporation into a packing device for use in a subterranean well |
| 01/24/2001 | EP1070573A1 Subsea electronic tagging and monitoring systems |
| 01/24/2001 | CN2416229Y Multifunction blow-out preventer |
| 01/24/2001 | CN2416228Y Strong supporting oil-submersible electric pump well head hanger |
| 01/24/2001 | CN2416227Y Long-acting wear-resisting energy-saving packing |
| 01/24/2001 | CN1281088A One-step filling technology for isolating high pressure and its tool |
| 01/23/2001 | US6176466 Composite pumping tree with integral shut-off valve |
| 01/23/2001 | US6176316 Subsea well head assembly |
| 01/23/2001 | US6176310 Assembly for sealing the annulus between concentric cylindrical surfaces |
| 01/23/2001 | CA2123298C Trenchless pipeline replacement |
| 01/19/2001 | CA2278059A1 Tubing rotator |
| 01/19/2001 | CA2277628A1 Subsea electronic valve tagging and status logging systems |
| 01/18/2001 | WO2001004565A1 Blast hole plug |
| 01/18/2001 | WO2001004456A1 Lubricator for underbalanced drilling |
| 01/18/2001 | DE10028015A1 Adding a liner to a borehole by inserting liner on a mandrel, injecting liquid between the liner and the borehole and expanding the liner onto the wall |
| 01/17/2001 | CN1280239A Strong binding acid soluble leak stopping agent |
| 01/16/2001 | US6173964 Seal assembly with backup elements having coil springs positioned therein |
| 01/16/2001 | US6173788 Wellpacker and a method of running an I-wire or control line past a packer |
| 01/16/2001 | US6173777 Single valve for a casing filling and circulating apparatus |
| 01/16/2001 | US6173770 Shear ram for ram-type blowout preventer |
| 01/16/2001 | US6173742 Undersea hydraulic coupling with axial preloading |
| 01/12/2001 | CA2313747A1 Method for installing a template and a substructure on a sea bed and levelling of the template |
| 01/10/2001 | EP1066449A1 Rotating connector with compensating unit |
| 01/10/2001 | CN2414188Y Multi-function hole top of oil well |
| 01/10/2001 | CN1279336A Artificial well wall of oil well for preventing sand |
| 01/09/2001 | US6170578 Monobore riser bore selector |
| 01/09/2001 | US6170574 Method of forming cement seals in downhole pipes |
| 01/04/2001 | WO2000053887A3 Wellbore primary barrier and related systems |
| 01/04/2001 | WO2000043632A3 System with a compliant guide and method for inserting a coiled tubing into an oil well |
| 01/03/2001 | EP1064452A1 Formation testing apparatus and method |
| 01/03/2001 | CN2413019Y Packer for downhole channeling best of cement sheath |
| 01/03/2001 | CN2413018Y Double-layer packing case |
| 01/02/2001 | USH1932 Wettability and fluid displacement in a well |
| 01/02/2001 | US6167967 Methods of sealing subterranean zones |
| 01/02/2001 | US6167963 Removable non-metallic bridge plug or packer |
| 01/02/2001 | US6167959 Adjustable stuffing boxes for pump rods |
| 12/28/2000 | WO2000079093A1 Well packer and method |
| 12/27/2000 | EP1062405A1 Extraction of fluids from wells |
| 12/27/2000 | EP1038087A4 Assembly and process for drilling and completing multiple wells |
| 12/27/2000 | EP0991847A4 Downhole surge pressure reduction system and method of use |
| 12/27/2000 | EP0857247A4 Assembly and process for drilling and completing multiple wells |
| 12/27/2000 | CN2412088Y Near bit type drilling tool slurry preventer |
| 12/26/2000 | US6165947 Method and composition for controlling fluid loss in high permeability hydrocarbon bearing formations |
| 12/26/2000 | US6164663 Bidirectional metal to metal seal |
| 12/26/2000 | US6164619 Bi-directional sealing ram |
| 12/26/2000 | US6164378 Pressure-compensation system |
| 12/26/2000 | CA2216668C Telescoping joint for use in a conduit connected to a wellhead and zone isolating tool for use therewith |
| 12/26/2000 | CA2133240C Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells using deformable sealing means |
| 12/21/2000 | WO2000077431A2 Expandable connector |
| 12/20/2000 | EP1061231A2 Stripper/packer |
| 12/20/2000 | EP1060325A1 Compositions for use in well construction, repair and/or abandonment |
| 12/20/2000 | EP1060324A1 Sealing for energy wells |
| 12/20/2000 | EP1060320A1 Method and apparatus for drilling a borehole into a subsea abnormal pore pressure environment |
| 12/20/2000 | EP0777813A4 Formation isolation and testing apparatus and method |