| Patents for E21B 41 - Equipment or details not covered by groups (7,984) |
|---|
| 09/16/1986 | US4611664 Technique for placing a liquid chemical in a well or bore hole |
| 09/16/1986 | US4611661 Retrievable exploration guide base/completion guide base system |
| 09/10/1986 | EP0193596A1 In situ waste impoundment treating apparatus and method of using same |
| 09/02/1986 | US4609046 Production riser foot and a process for implementing same |
| 09/02/1986 | US4609045 Method and apparatus for cleaning the screen inlet portion of a water well casing |
| 09/02/1986 | US4609042 Inflatable safety bladder |
| 08/26/1986 | US4607998 Electromechanical manipulator assembly |
| 08/19/1986 | US4606283 System for extracting contaminants and hydrocarbons from cuttings waste in oil well drilling |
| 08/14/1986 | WO1986004634A1 Corrosion inhibitor for high density brines |
| 08/12/1986 | US4605065 Method and apparatus for monitoring well tubing fluid |
| 07/29/1986 | US4602893 Ring gasket installation tool |
| 07/22/1986 | US4601610 Apparatus and method for underwater valve component assembly and disassembly |
| 07/22/1986 | US4601608 Subsea hydraulic connection method and apparatus |
| 07/15/1986 | US4600339 Shield for protecting a well head and functional modules of an under sea station |
| 07/15/1986 | CA1207603A1 Underwater operating unit |
| 07/08/1986 | US4599117 Drilling cuttings |
| 06/24/1986 | CA1206411A1 Oil recovery by in situ combustion |
| 06/17/1986 | US4595422 Removing fluids and hydrocarbons from mixture by immersing solids in solution to remove hydrocarbons, agitating, shaking solids, centrifuging, heating to vaporize remaining fluids, discharging |
| 06/11/1986 | EP0184411A2 Method and apparatus for treating wellbore drilling cuttings |
| 06/10/1986 | CA1205737A1 Apparatus for signalling within a borehole while drilling |
| 06/10/1986 | CA1205616A1 Process for elimination of h.sub.2s from natural gas, crude oil and mixtures thereof |
| 06/04/1986 | EP0183500A2 Apparatus for cleaning pipes |
| 05/27/1986 | US4591296 In subsea drilling operations involving a temporary guide base |
| 04/23/1986 | EP0178870A2 Method and apparatus for the servicing and inspection of pipes |
| 04/22/1986 | US4583603 Drill pipe joint |
| 04/22/1986 | CA1203450A1 Composition and method for cleaning oil from hard surfaces |
| 04/15/1986 | US4582131 Submersible chemical injection pump |
| 04/08/1986 | US4580926 Foundation level and orientation tool |
| 04/08/1986 | US4580634 Method and apparatus for distributing fluids within a subterranean wellbore |
| 04/01/1986 | CA1202563A1 Tool and method for disconnecting the attachment of a leader line |
| 03/18/1986 | US4576193 Device for working on a submerged valve |
| 03/13/1986 | WO1986001439A1 In situ waste impoundment treating apparatus and method of using same |
| 03/04/1986 | US4574241 Marine surveying apparatus and method for locating pipelines buried under the seabed |
| 03/04/1986 | US4573744 Pick and the combination of a pick and holder |
| 03/04/1986 | US4573541 Multi-drain drilling and petroleum production start-up device |
| 03/04/1986 | US4573529 High flow injection anchor |
| 03/04/1986 | CA1201428A1 Method and means for transmitting data through a drill string in a borehole |
| 03/04/1986 | CA1201380A1 Well pump shield |
| 02/13/1986 | WO1986000964A1 A securing device |
| 02/12/1986 | EP0171335A1 Drilling rod joint, especially for traversing the zones of lost circulation |
| 01/28/1986 | CA1199864A1 Method and apparatus for monitoring the corrosive effects of well fluids |
| 01/16/1986 | WO1986000353A1 Underwater operating system |
| 01/16/1986 | WO1986000273A1 Manned autonomous underwater vessel |
| 01/15/1986 | EP0167686A1 Process for containment of liquids as solids or semisolids |
| 01/07/1986 | US4562854 Piston actuated chemical injection valve |
| 12/31/1985 | US4562560 Method and means for transmitting data through a drill string in a borehole |
| 12/24/1985 | US4559716 Method and apparatus for determining the distance and angular orientation between two structurally unconnected members |
| 12/10/1985 | US4557628 Method and apparatus for remotely cutting broken underwater guidelines |
| 12/10/1985 | US4557329 Oil recovery by in-situ combustion |
| 12/10/1985 | CA1197837A1 Prevention of cone seal failures in rock bits |
| 12/03/1985 | US4556111 Method for inhibiting corrosion |
| 12/03/1985 | US4556110 Corrosion inhibition |
| 12/03/1985 | CA1197458A1 Chemical injection valve with openable bypass |
| 11/26/1985 | CA1197180A1 Subsea wellhead connection assembly and a method of installing same |
| 11/19/1985 | US4553989 Safety system for removing any risk of carrying liquids to the nose of the flare or to the vent-hole during burning or dispersion of the gases associated with production |
| 11/19/1985 | US4553600 Safety installation for a submerged drilling well-head |
| 11/19/1985 | CA1196858A1 Subsea well conception system, a base template for the system and a method of establishing production capability from multiple subsea wellheads |
| 11/05/1985 | US4550804 Climbing assist apparatus having controlled descent and escape mechanism |
| 10/29/1985 | US4549570 Waste disposal monitoring system |
| 10/23/1985 | EP0088776B1 System for preventing liquids from being driven to the flair stack tip |
| 10/22/1985 | US4548708 Process for removing hydrogen sulfide from natural gas, oil and mixtures thereof |
| 10/22/1985 | US4548525 Method and apparatus for pre-dilution of drilling mud slurry and the like |
| 10/15/1985 | US4547149 System for preventing liquids from being driven to the flair stack tip |
| 10/15/1985 | US4546783 Apparatus for washing drill cuttings |
| 10/09/1985 | EP0157395A2 Whirl nozzle as a hydraulic tool |
| 10/08/1985 | US4545437 Drilling riser locking apparatus and method |
| 09/17/1985 | US4541755 Device and process for lowering and connecting the four guide lines to guide posts of an underwater station |
| 09/17/1985 | US4541754 Device and process for lowering a connector suspended from guide line to a guide column installed on an underwater station |
| 08/28/1985 | EP0046800B1 Riser angle positioning system and process |
| 08/27/1985 | US4537533 Installation and levelling of subsea templates |
| 08/13/1985 | US4535430 Subsea acoustic relocation system |
| 08/13/1985 | US4535429 Apparatus for signalling within a borehole while drilling |
| 08/06/1985 | US4533162 Stabbing box and safety slip for making tubing connections |
| 08/06/1985 | CA1191531A1 Means for generating electricity during drilling of a borehole |
| 08/06/1985 | CA1191451A1 Means for sealing a gap around a conductor pipe |
| 07/30/1985 | US4532614 Wall bore electrical generator |
| 07/23/1985 | CA1190850A1 Corrosion inhibiting process for a remotely located deep corrosive gas well |
| 07/17/1985 | EP0148264A1 Process and apparatus for handling waste from oil well operations |
| 07/01/1985 | EP0099884A4 Method and apparatus for treating waste rock cuttings. |
| 06/18/1985 | US4523878 Remotely replaceable guidepost method and apparatus |
| 06/18/1985 | CA1188982A1 Submerged tool rework connector |
| 05/28/1985 | US4519848 Cleaning material from particles |
| 05/28/1985 | CA1187868A1 Guideline system for positioning subsea equipment |
| 05/21/1985 | US4518888 For use in a drill string operating in a borehole |
| 05/21/1985 | US4518041 Hydraulic jet well cleaning assembly using a non-rotating tubing string |
| 05/14/1985 | US4516932 Safety system intended in particular to elminate entrained or condensed liquids, and to limit the heat radiation when flaring or dispersing hydrocarbon gases |
| 05/14/1985 | US4516882 Method and apparatus for conversion of semi-submersible platform to tension leg platform for conducting offshore well operations |
| 05/14/1985 | CA1187038A1 Prevention of hydrogen embrittlement of metals in corrosive environments |
| 05/07/1985 | US4515225 Mud energized electrical generating method and means |
| 05/02/1985 | EP0139596A2 Device for working at under-water structures having several branches |
| 05/02/1985 | EP0139567A2 Method and composition for inhibiting corrosion |
| 04/30/1985 | US4513818 Method for reducing scale in geothermal systems |
| 04/23/1985 | US4512420 Downhole vortex generator |
| 04/23/1985 | US4512409 Moonpool guidance system for floating structures |
| 04/23/1985 | US4512408 Moonpool guidance system for drill strings having attached umbilical lines |
| 04/16/1985 | US4510994 For use in a well tubing |
| 04/16/1985 | US4510985 Stacked open bottom temporary guide base for offshore drilling |
| 04/10/1985 | EP0136935A1 Device for drilling a multidrain oil well and for putting it into production |
| 04/10/1985 | EP0136373A1 Process for washing drill cuttings |
| 04/09/1985 | US4509595 In situ combustion for oil recovery |