| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 01/31/1984 | US4428421 Wireline winch mounting system |
| 01/31/1984 | CA1161360A1 Arrangement for feeding packing and grouting materials to and their processing within a pre-set interval of a well |
| 01/24/1984 | US4427073 Deep water hydrostatic head control |
| 01/24/1984 | US4427065 Cementing plug container and method of use thereof |
| 01/24/1984 | US4427063 Retrievable bridge plug |
| 01/24/1984 | US4427060 Gas well ball retriever |
| 01/17/1984 | US4426175 Hydraulic sealing apparatus |
| 01/17/1984 | US4426086 Annular seal and method of use |
| 01/17/1984 | CA1160565A1 Cementing collar and method of operation |
| 01/10/1984 | US4424988 Frangible pipe coupling |
| 01/10/1984 | US4424865 Sealing conduits, wells |
| 01/10/1984 | US4424864 Isolation plug |
| 01/10/1984 | US4424861 Inflatable anchor element and packer employing same |
| 01/10/1984 | US4424860 Deflate-equalizing valve apparatus for inflatable packer formation tester |
| 01/10/1984 | US4424859 Multi-channel fluid injection system |
| 01/10/1984 | CA1160153A1 Fluid pressurization apparatus and technique |
| 01/10/1984 | CA1160066A1 Hull heating system for an arctic offshore production structure |
| 01/10/1984 | CA1160033A1 Oil base fluids containing cationic organophilic clays |
| 01/04/1984 | EP0097596A2 Method and well logging tool for measuring a characteristic of a flowing fluid |
| 01/04/1984 | EP0097457A2 Apparatus for setting a well tool in a well bore |
| 01/03/1984 | US4423982 Method and equipment for running riser pipes for mooring offshore floating platforms |
| 01/03/1984 | US4423783 Method for plugging a well and bridge plug |
| 01/03/1984 | US4423782 Annulus safety apparatus |
| 01/03/1984 | US4423781 Method of using a spacer system in brine completion of wellbores |
| 01/03/1984 | US4423780 Method and apparatus for fracturing hydrocarbon-bearing well formations |
| 01/03/1984 | US4423778 Concentric tubing separation joint |
| 01/03/1984 | US4423777 Fluid pressure actuated well tool |
| 01/03/1984 | US4423776 Drilling head assembly |
| 01/03/1984 | US4423775 Line stripper |
| 01/03/1984 | CA1159642A2 Oil well cementing process and composition |
| 12/27/1983 | US4422876 Method for preparing plugging material |
| 12/27/1983 | US4422507 Wellhead apparatus |
| 12/27/1983 | CA1159528A1 Plug-in connector for use in a fluid environment |
| 12/27/1983 | CA1159365A1 Blowout preventer |
| 12/27/1983 | CA1159360A1 Multiple stage cementer and casing inflation packer |
| 12/27/1983 | CA1159268A1 Method of and apparatus for reinforcing piling structure and improved precast concrete pile suitable for use in said method |
| 12/20/1983 | US4421169 Protective sheath for high temperature process wells |
| 12/20/1983 | US4421165 Multiple stage cementer and casing inflation packer |
| 12/20/1983 | US4421164 Weight-set pack-off unit |
| 12/20/1983 | CA1158976A1 Flanging system for suspending casing and tubing columns for high pressure oil or gas wells |
| 12/20/1983 | CA1158975A1 Submergible pump installation |
| 12/20/1983 | CA1158974A1 Seal assemblies and packer members therefor |
| 12/13/1983 | US4420159 Packer valve arrangement |
| 12/13/1983 | US4420042 Method for cutting and replacing tubing without killing well |
| 12/13/1983 | US4420040 Ball catcher |
| 12/13/1983 | CA1158546A1 Spacer system useful in brine completion of wellbores |
| 12/07/1983 | EP0095837A2 Well testing apparatus and method |
| 12/06/1983 | US4418756 Method and apparatus for performing operations in well tubing |
| 12/06/1983 | CA1158227A1 Method and apparatus for recovering unstable cores |
| 11/29/1983 | US4417625 Annulus plugging |
| 11/29/1983 | US4417624 Method and apparatus for controlling the flow of fluids from an open well bore |
| 11/29/1983 | CA1157769A1 Annular blowout preventer with upper and lower spherical sealing surfaces |
| 11/29/1983 | CA1157768A1 Control valve system for blowout preventers |
| 11/22/1983 | US4416495 Concentric electric connector for subsea well apparatus |
| 11/22/1983 | US4416472 Holddown and packoff apparatus |
| 11/22/1983 | US4416441 Blowout preventer |
| 11/22/1983 | US4416340 Rotary drilling head |
| 11/22/1983 | US4416328 Pitless adapter |
| 11/22/1983 | CA1157459A1 Swivel unit |
| 11/16/1983 | EP0094170A2 High temperature packer with low temperature setting capabilities |
| 11/16/1983 | EP0094169A2 High temperature packer |
| 11/15/1983 | US4415269 Device for providing a reinforced foam lining for well bore holes |
| 11/15/1983 | US4415205 Triple branch completion with separate drilling and completion templates |
| 11/15/1983 | US4415186 Flanging system for suspending casting and tubing columns for high pressure oil or gas wells |
| 11/15/1983 | US4415045 Offshore drilling of large diameter holes in rock formations |
| 11/15/1983 | US4415028 Apparatus for measuring bottom hole well conditions |
| 11/15/1983 | US4415026 Roller guide for oil-well pump |
| 11/10/1983 | WO1983003883A1 High-pressure fire-resistant metal seal |
| 11/09/1983 | EP0093561A2 Coupling device |
| 11/08/1983 | US4413682 Method and apparatus for installing a cementing float shoe on the bottom of a well casing |
| 11/08/1983 | US4413678 Alarm means for use with apparatus protecting a device situated in a borehole |
| 11/08/1983 | US4413677 Dual string well packer |
| 11/01/1983 | US4412584 Downhole tool intake port assembly |
| 11/01/1983 | US4412559 Dog locking sleeve |
| 11/01/1983 | CA1156140A1 Well tool having knitted wire mesh seal means |
| 10/25/1983 | US4412018 Organophilic clay complexes, their preparation and compositions comprising said complexes |
| 10/25/1983 | US4411455 Riser connector |
| 10/25/1983 | US4411454 Underwater wellhead connector |
| 10/25/1983 | US4411435 Seal assembly with energizing mechanism |
| 10/25/1983 | US4411315 Drag spring unit |
| 10/25/1983 | US4411314 Attachment means for use for insertion and retrieval of a casing packer |
| 10/25/1983 | US4411313 Pump |
| 10/25/1983 | US4411312 Water-tight conduit well cap |
| 10/25/1983 | CA1155762A1 Guides for forming connections |
| 10/25/1983 | CA1155759A1 Well tools |
| 10/18/1983 | US4410044 Method for orienting well casing and other tubular work objects and device therefor |
| 10/18/1983 | US4410040 Corrosive environment tension packer |
| 10/18/1983 | CA1155391A1 Packer |
| 10/18/1983 | CA1155390A1 Device for routing a body through a fluid filled pipeline |
| 10/18/1983 | CA1155389A1 Well sealing system |
| 10/18/1983 | CA1155308A1 Method and apparatus for installing a sea-floor cellar in a subsea bottom having compacted soil conditions |
| 10/11/1983 | US4408784 Production casing tieback connector assembly |
| 10/11/1983 | US4408783 Holddown apparatus |
| 10/11/1983 | US4408662 Retrievable packer for oil well casing |
| 10/11/1983 | US4408485 Rotary straddle tester apparatus with safety joint back-off clutch |
| 10/11/1983 | CA1155053A1 Blowout preventer |
| 10/11/1983 | CA1154945A1 Thickener from water-swellable material, oil surfactant and water |
| 10/04/1983 | US4407530 Packoff apparatus |
| 10/04/1983 | US4407514 Wellhead casing packing support |
| 10/04/1983 | US4407369 Method and apparatus for placing a cement thermal packer |