| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 10/04/1983 | US4407368 Polyurethane ball sealers for well treatment fluid diversion |
| 10/04/1983 | US4407366 Method for gas capping of idle geothermal steam wells |
| 10/04/1983 | US4407365 Method for preventing annular fluid flow |
| 10/04/1983 | US4407364 Landing nipple for pumpdown well completion system |
| 10/04/1983 | US4407361 Tool trap |
| 10/04/1983 | US4407183 Method and apparatus for hydraulically controlling subsea equipment |
| 09/28/1983 | EP0089798A2 Improved casing hanger |
| 09/27/1983 | US4406485 Tubular connector |
| 09/27/1983 | US4406469 Plastically deformable conduit seal for subterranean wells |
| 09/27/1983 | US4406461 Inflatable well packer apparatus reinforced with tire cording |
| 09/27/1983 | US4406333 Rotating head for rotary drilling rigs |
| 09/27/1983 | US4406331 Pipe wiper |
| 09/27/1983 | US4406324 Bottom lock pipe seal assembly |
| 09/27/1983 | CA1154389A1 Conductor pipe plug |
| 09/27/1983 | CA1154379A1 Kelly packing and stripper seal protection element |
| 09/27/1983 | CA1154307A1 Roller guide for oil-well pump |
| 09/21/1983 | EP0089146A2 Inflatable packer element |
| 09/20/1983 | US4405261 Subsea template levelling system and method |
| 09/20/1983 | US4405161 Wellhead security apparatus |
| 09/20/1983 | US4405017 Positive locating expendable plug |
| 09/20/1983 | US4405016 Underwater Christmas tree cap and lockdown apparatus |
| 09/20/1983 | US4404989 Underwater connector for fluid lines |
| 09/13/1983 | US4403660 Well packer and method of use thereof |
| 09/13/1983 | US4403656 Permanent thermal packer |
| 09/13/1983 | CA1153693A1 Well valve |
| 09/13/1983 | CA1153691A1 Isolation gravel packer |
| 09/06/1983 | US4402773 Remote automatic make-up stab-in sealing system |
| 09/06/1983 | US4402551 Method and apparatus to complete horizontal drain holes |
| 09/06/1983 | US4402535 Adjustable backing arrangement for pipe suspending slips |
| 09/06/1983 | US4402517 Well packer valve arrangement |
| 09/06/1983 | CA1153307A1 Rotary drive assembly for downhole rotary pump |
| 09/06/1983 | CA1153305A1 Downhole pump with pressure limiter |
| 09/06/1983 | CA1153288A1 Method and apparatus for obtaining selected samples of formation fluids |
| 08/30/1983 | US4401160 Dome-type packoff wellhead |
| 08/30/1983 | US4401158 One trip multi-zone gravel packing apparatus |
| 08/30/1983 | CA1152892A1 Connecting/deconnecting device between a first rigid riser with a self aligning mounting on a base and a second rigid conduit mounted on the same base |
| 08/23/1983 | US4399872 Guidelineless system for riser entry/reentry that permits quick release of a riser column from a subsea installation |
| 08/23/1983 | US4399869 Pipe wiping method and apparatus |
| 08/23/1983 | US4399867 Method for injecting a gaseous stream into a hot subterranean zone |
| 08/23/1983 | US4399866 Method for controlling the flow of subterranean water into a selected zone in a permeable subterranean carbonaceous deposit |
| 08/18/1983 | WO1983002798A1 System for activating a blowout preventer |
| 08/16/1983 | US4398729 Blowout preventer inner ram seal assembly |
| 08/16/1983 | US4398601 Parking tool for pumpdown well completion system |
| 08/16/1983 | US4398599 Rotating blowout preventor with adaptor |
| 08/16/1983 | US4398598 Break-out tool for annular type blow-out preventers |
| 08/09/1983 | US4397357 Disconnectable production riser assembly |
| 08/09/1983 | US4397355 Whipstock setting method and apparatus |
| 08/09/1983 | US4397354 Thickening fluid having a water-swellable material |
| 08/09/1983 | US4397353 Method for vertical fracture growth control |
| 08/09/1983 | US4397351 Packer tool for use in a wellbore |
| 08/09/1983 | CA1151537A1 Well packer |
| 08/09/1983 | CA1151536A1 High temperature packer element for well bores |
| 08/02/1983 | US4396314 Connection unit for securing offshore structures to marine bottom |
| 08/02/1983 | US4396230 Multiple branch well containing one producer and one injector well |
| 08/02/1983 | US4396066 Method and apparatus for effecting sealed connection to upstanding irregular end of tubing positioned in a well |
| 08/02/1983 | US4396064 Method and apparatus for injecting a gaseous stream into a subterranean zone |
| 08/02/1983 | US4396031 Method for restricting uncontrolled fluid flow through a pipe |
| 07/26/1983 | US4395061 Swivel unit |
| 07/19/1983 | US4393931 Combination hydraulically set hanger assembly with expansion joint |
| 07/19/1983 | US4393930 Subterranean well pressure surging tool |
| 07/19/1983 | US4393929 Well packers and slip assemblies for use therewith |
| 07/12/1983 | US4392633 Valve structure having movable seat means |
| 07/12/1983 | CA1149736A1 Riser connector |
| 07/12/1983 | CA1149735A1 Seal assembly releasing tool |
| 07/12/1983 | CA1149732A1 Method of cementing wells |
| 07/05/1983 | US4391331 Guides for use in forming pipe connections and a process of forming pipe connections |
| 07/05/1983 | US4391330 Apparatus and method for installing and energizing submergible pump in underwater well |
| 07/05/1983 | US4391329 Use of marker fluid in cementing offshore wells |
| 07/05/1983 | US4391324 Geothermal well head and actuator assembly |
| 06/28/1983 | US4390229 Plug-in connector suitable for use in a fluid medium |
| 06/28/1983 | US4390186 Metal-to-metal ribbed seal |
| 06/28/1983 | US4390065 Apparatus for well treating |
| 06/28/1983 | US4390063 Geothermal wellhead packing assembly |
| 06/21/1983 | US4388971 Hanger and running tool apparatus and method |
| 06/21/1983 | US4388970 Apparatus and method for controlling injection fluid flow in a well annulus |
| 06/21/1983 | US4388968 Downhole tool suction screen assembly |
| 06/14/1983 | US4387771 Wellhead system for exploratory wells |
| 06/14/1983 | US4387767 Subsurface safety valve system with hydraulic packer |
| 06/14/1983 | CA1148079A2 Connection of underwater lines |
| 06/14/1983 | CA1148078A2 Connection of underwater lines |
| 06/08/1983 | EP0080918A1 Obturator device for fluid tubes |
| 06/08/1983 | EP0080527A1 Device for shifting a port collar sleeve |
| 06/07/1983 | US4386783 Packing nut and stuffing box for hydraulic or manual actuation |
| 06/07/1983 | US4386659 Guides for forming connections |
| 06/07/1983 | US4386656 Tubing hanger landing and orienting tool |
| 06/07/1983 | US4386655 Downhole pump with floating seal means |
| 06/07/1983 | US4386555 Hydraulic cylinder cushion device |
| 06/07/1983 | US4386531 Method and apparatus for determining the injection pressure during injection operations during construction work |
| 06/07/1983 | CA1147645A2 High temperature well packer |
| 06/07/1983 | CA1147643A1 Method of selective diversion in deviated wellbores using ball sealers |
| 06/01/1983 | EP0079997A1 Aqueous treatment fluid and method for its use in the drilling of wells |
| 05/31/1983 | US4385664 Frangible cup thermal packer assembly for cased wells |
| 05/31/1983 | US4385663 Packerless well completion assembly |
| 05/31/1983 | CA1147259A1 Constantly energized no-load tension packer |
| 05/31/1983 | CA1147256A1 Seal assembly |
| 05/24/1983 | US4384730 Seal assembly |
| 05/24/1983 | US4384726 Expandable lubricating packing assembly for wellheads |
| 05/24/1983 | US4384615 Method of mixing fluids in a well bore |
| 05/24/1983 | CA1146848A1 Guides for use in forming pipe connections and a process for forming pipe connections |
| 05/17/1983 | US4383578 Casing bore receptacle with fluid check valve |