| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
|---|
| 07/25/1995 | US5436396 Stabilizing compositions and methods for stabilizing subterranean formations |
| 07/25/1995 | US5435395 Method for running downhole tools and devices with coiled tubing |
| 07/25/1995 | US5435390 Remote control for a plug-dropping head |
| 07/25/1995 | US5435388 Well plugging apparatus and method |
| 07/25/1995 | US5435387 Built-in grout line for a well casing |
| 07/25/1995 | US5435386 Cementing plug |
| 07/25/1995 | US5435385 Integrated wellhead tubing string |
| 07/25/1995 | US5435338 Equipment for the interconnection of two lines to allow running of pigs |
| 07/25/1995 | CA2060246C Rotary blowout preventer adaptable for use with both kelly and overhead drive mechanisms |
| 07/18/1995 | US5433275 Double-threaded anchor tubing assembly |
| 07/18/1995 | US5433274 Hydraulic connector |
| 07/18/1995 | US5433270 For insertion in the bore of a casting |
| 07/18/1995 | US5433269 Retrievable packer for high temperature, high pressure service |
| 07/18/1995 | CA2023151C Packer locking apparatus |
| 07/12/1995 | EP0662188A1 Method for cement placement in horizontal wells |
| 07/12/1995 | CN2203353Y Hydraulic bridge plug setting tool |
| 07/11/1995 | US5431412 For a packer |
| 07/11/1995 | US5431230 Slant wellbore tubing anchor catcher with rotating mandrel |
| 07/06/1995 | WO1995018288A1 A downhole tool |
| 07/04/1995 | US5429194 Method for inserting a wireline inside coiled tubing |
| 07/04/1995 | US5429188 Tubing rotator for a well |
| 06/29/1995 | WO1995017580A1 Assembly and process for drilling and completing multiple wells |
| 06/29/1995 | WO1995017244A1 Solvent soaps and methods employing same |
| 06/29/1995 | CA2179720A1 Solvent soaps and methods employing same |
| 06/27/1995 | US5427179 For changing direction of drilling within a wellbore |
| 06/27/1995 | US5427178 Tubing rotator and hanger |
| 06/27/1995 | US5427153 Expandable plug for drain pipes |
| 06/21/1995 | EP0658683A1 Running tool |
| 06/21/1995 | CN1103885A Graft polymer and its use for oil well or water well for sealing purpose |
| 06/21/1995 | CA2116077A1 Rotatable wellhead equipment for logging through the annulus |
| 06/20/1995 | US5425424 Casing valve |
| 06/20/1995 | US5425423 Well completion tool and process |
| 06/20/1995 | US5425421 Method for sealing unwanted fractures in fluid-producing earth formations |
| 06/20/1995 | US5425420 Spoolable coiled tubing completion system |
| 06/20/1995 | US5425419 Whipstock apparatus and methods of use |
| 06/20/1995 | US5425418 Multiple-completion packer and locking element therefor |
| 06/20/1995 | CA2081701C Tubular coupling device |
| 06/20/1995 | CA2080997C Reinforced inflatable packer |
| 06/15/1995 | WO1995016103A1 Cellulose injection system and method |
| 06/15/1995 | WO1995016102A1 Method for abandonment of subseawells |
| 06/15/1995 | CA2177809A1 Cellulose injection system and method |
| 06/14/1995 | DE4443792A1 Vorrichtung zur Verriegelung und Abdichtung A device for locking and sealing |
| 06/14/1995 | CN1103700A 纤维素注入系统 Cellulose injection system |
| 06/13/1995 | US5423383 Spoolable flexible hydraulic controlled coiled tubing safety valve |
| 06/13/1995 | US5423379 Method for drilling and cementing a well |
| 06/13/1995 | CA1335878C Cementing method and arrangement |
| 06/13/1995 | CA1335877C Apparatus and method for testing a well |
| 06/11/1995 | CA2135699A1 Control system |
| 06/08/1995 | WO1995015428A1 Method for developing an offshore hydrocarbon reservoir and an underwater station for use in exploring an offshore hydrocarbon reservoir |
| 06/07/1995 | EP0656460A2 Method and device for monitoring subsurface reservoirs |
| 06/07/1995 | CN2200049Y Packer in borehole |
| 06/07/1995 | CN2200048Y Flushing heat recovery packer |
| 06/07/1995 | CN2200047Y Direct seat sealing type cable bridging plug |
| 06/06/1995 | US5421410 Plugging of underground strata to eliminate gas and water coning during oil production |
| 06/06/1995 | US5421408 Simultaneous water and gas injection into earth formations |
| 06/06/1995 | US5421407 Wellhead load support ring |
| 05/31/1995 | CN2199307Y Device for overcoming U-tube effect in pouring cement |
| 05/31/1995 | CN2199306Y Suspended thermal extracting device for well head with spinning oil pipe |
| 05/31/1995 | CN1103130A Bentonite gel plugging agent |
| 05/31/1995 | CN1103129A Oil well water-stopping agent of polyacrylamide |
| 05/30/1995 | US5419400 Environmental vat |
| 05/26/1995 | WO1995014208A1 Expansion foam borehole plug and method |
| 05/24/1995 | EP0654581A2 Sub-surface release plug apparatus |
| 05/23/1995 | US5417459 Subsea umbilical connector |
| 05/23/1995 | US5417289 Inflatable packer device including limited initial travel means and method |
| 05/23/1995 | US5417285 Method and apparatus for sealing and transferring force in a wellbore |
| 05/23/1995 | US5417122 Soil sampling system with sample container rigidly coupled to drive casing by inflated gland |
| 05/17/1995 | EP0653546A1 Separation element for the space between hollow bodies inserted into one another, in particular for well pipes |
| 05/17/1995 | EP0653545A1 Separation element for the space between hollow bodies inserted into one another, in particular for well pipes |
| 05/17/1995 | EP0515513B1 Releasable hydraulic and/or electric connection for subsea equipment |
| 05/17/1995 | CN2197456Y Automatic mud pumping apparatus for sucked region |
| 05/17/1995 | CN2197455Y Adjustable sealing box for oil well top |
| 05/17/1995 | CN2197454Y Polish rod sealer with assembled stuffing box |
| 05/16/1995 | US5415237 Control system |
| 05/16/1995 | CA2098863C Friction plug for a high pressure pipe |
| 05/16/1995 | CA2003348C Casing hanger running and retrieval tools |
| 05/09/1995 | US5413415 Rotary table deck bushing |
| 05/09/1995 | US5413180 One trip backwash/sand control system with extendable washpipe isolation |
| 05/09/1995 | US5413177 Recovering hydrocarbons from underground reservoirs |
| 05/09/1995 | US5413176 Sand screen repair |
| 05/09/1995 | US5413172 Sub-surface release plug assembly with non-metallic components |
| 05/09/1995 | US5413171 Latching and sealing assembly |
| 05/09/1995 | US5413170 Spoolable coiled tubing completion system |
| 05/09/1995 | CA2099046C Multiple use well packer |
| 05/03/1995 | EP0651130A2 Packing sleeve for a well packer and method for constructing such a packer |
| 05/02/1995 | US5411099 Method of securing a linear in an overlapping well bore |
| 05/02/1995 | US5411095 Apparatus for cementing a casing string |
| 05/02/1995 | US5411085 Spoolable coiled tubing completion system |
| 05/02/1995 | US5411083 Inflatable well seal |
| 05/02/1995 | US5411081 Spoolable flexible hydraulically set, straight pull release well packer |
| 04/27/1995 | WO1995011369A1 Friction plug for a high pressure pipe |
| 04/25/1995 | US5409073 Rotating head with elastomeric member rotating assembly |
| 04/25/1995 | US5409071 Method to cement a wellbore |
| 04/25/1995 | US5409040 Springless pilot operated sequence valve |
| 04/25/1995 | CA2075255C Wet christmas tree |
| 04/20/1995 | WO1995010764A1 Apparatus for testing a shear thickening plugging fluid |
| 04/19/1995 | CN2194977Y Hydraulic bridge plug setting tool |
| 04/19/1995 | CN2194976Y Disk blowout-preventer deflection corrector for pumping well head |
| 04/19/1995 | CN1101697A Double layer combined case-pipe post structure and cementing method |
| 04/18/1995 | US5407172 Position instrumented blowout preventer |