Patents for E21B 41 - Equipment or details not covered by groups (7,984) |
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05/01/1996 | EP0513296B1 Device for the assembly or disassembly of probes in process pipes, tanks, etc. |
04/30/1996 | CA1338279C Method for underground disposal of liquid waste |
04/23/1996 | US5509490 For preventing mud interference to a portion of a drill string |
04/18/1996 | WO1996011344A1 A mechanical overload protection device |
04/16/1996 | US5507346 Composite well flow conductor |
04/11/1996 | WO1996010719A1 A device for burning gas from a production plant for oil or gas |
04/10/1996 | EP0586428B1 Apparatus for measuring the profile of a moving object |
04/02/1996 | US5503225 System and method for monitoring the location of fractures in earth formations |
04/02/1996 | US5503014 Method and apparatus for testing wells using dual coiled tubing |
03/26/1996 | US5502267 Pollution control for waste treatment of sludge |
03/26/1996 | US5501549 Pulling and connecting tool for subsea conduits |
03/26/1996 | US5501281 Torque-resistant, seal setting force-limited, hydraulically settable well packer structure and associated methods |
03/20/1996 | EP0496850B1 Drill cuttings disposal method and system |
03/20/1996 | CN1031335C Method and system for conducting offshore well operations |
03/19/1996 | US5499681 Centralizing liner hanger method and system for subterranean multilateral well drilling |
03/19/1996 | US5499680 Diverter, diverter retrieving and running tool and method for running and retrieving a diverter |
03/13/1996 | EP0701045A2 Multilateral well drilling and completion method and apparatus |
03/13/1996 | EP0701044A2 Apparatus and method for hanging a downhole liner |
03/13/1996 | EP0701043A2 Torque-resistant well packer |
03/13/1996 | EP0701042A2 Decentring method and apparatus, especially for multilateral wells |
03/13/1996 | EP0701041A2 Well flow conductor and manufacture thereof |
03/13/1996 | EP0701040A2 Downhole diverter and retrieving tool therefor |
03/07/1996 | WO1996007001A1 Telescopic flare pipe tower |
03/05/1996 | US5495986 Liquid fuel, solid waste material |
02/27/1996 | US5495237 Measuring tool for collecting down hole information and metering valve for producing mud-pulse used in the same |
02/27/1996 | CA2156983A1 Centralizing liner hanger method and system for subterranean multilateral well drilling |
02/27/1996 | CA2156981A1 Composite well flow conductor for subterranean multilateral well drilling and completion and method of manufacture therefor |
02/26/1996 | CA2155704A1 Method for improving productivity of a well |
02/21/1996 | EP0697057A1 Drill bit and other downhole tools |
02/20/1996 | US5492173 Plug or lock for use in oil field tubular members and an operating system therefor |
02/13/1996 | US5490563 Perforating gun actuator |
02/13/1996 | US5490364 Telescopic flare pipe tower |
02/01/1996 | WO1996002728A1 Emf sacrificial anode sub and method to deter bit balling |
01/23/1996 | US5486070 Method for conducting offshore well operations |
01/16/1996 | US5484231 Disposal of slurries of municipal waste in deep geothermal reservoirs |
01/16/1996 | US5484016 For use in removing material buildup from an inner surface |
01/11/1996 | WO1996000834A1 Drag block for increasing the fluid resistance in a well production tubing |
01/09/1996 | CA2051081C Method of inhibiting corrosion in acidizing wells |
01/02/1996 | US5480266 Tensioned riser compliant tower |
12/26/1995 | US5477925 Method for multi-lateral completion and cementing the juncture with lateral wellbores |
12/26/1995 | US5477924 Method for producing hydrocarbon from an unknown reservoir |
12/26/1995 | US5477923 Wellbore completion using measurement-while-drilling techniques |
12/13/1995 | EP0686753A2 A release device |
12/12/1995 | US5474131 Method for completing multi-lateral wells and maintaining selective re-entry into laterals |
12/12/1995 | US5474130 Perforation purging tool |
11/30/1995 | WO1995032353A1 Lateral drilling method |
11/30/1995 | CA2191076A1 Lateral drilling method |
11/08/1995 | EP0681090A2 Measurement while drilling tool |
11/08/1995 | EP0681088A2 Annulus pressure responsive downhole tool |
11/08/1995 | EP0680388A1 Subterranean disposal of liquid and slurried wastes |
11/02/1995 | WO1995029435A1 Sensor system for controlling ventilation systems in vehicles |
11/02/1995 | WO1995029072A1 Sensor arrangement for controlling vehicle ventilation systems |
11/02/1995 | EP0553134B1 A method of disposing of drilling wastes |
11/02/1995 | DE4414594A1 Sensor device for controlling vehicle ventilation system |
10/31/1995 | US5463164 Waste disposal in subterranean earth formations |
10/31/1995 | US5462120 Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes |
10/31/1995 | US5462118 Method for enhanced cleanup of horizontal wells |
10/18/1995 | EP0677640A1 Improvements in or relating to steerable rotary drilling systems |
10/18/1995 | EP0677137A1 Data and signal transmitting installation for controlling and monitoring underwater ramming and cutting-off machinery, or the like. |
10/10/1995 | US5456316 Downhole signal conveying system |
10/03/1995 | US5454666 Method for disposing of unwanted gaseous fluid components within a solid carbonaceous subterranean formation |
10/03/1995 | US5454430 Lateral wellbore completion apparatus |
09/28/1995 | WO1995025607A1 Waste disposal in subterranean earth formations |
09/27/1995 | EP0649352A4 Waste disposal in hydraulically fractured earth formations. |
09/26/1995 | CA2020229C Well treatment method |
09/05/1995 | US5447202 Setting tool and related method |
09/05/1995 | US5447201 Well completion system |
08/31/1995 | DE4294552C2 Clearing of plug to restore well flow |
08/30/1995 | EP0557364B1 Process for cleaning and degreasing, premix for use at the process and cleaning composition |
08/30/1995 | CN2206348Y Wheel type truck |
08/22/1995 | US5443120 Method for improving productivity of a well |
08/15/1995 | US5441112 Integrated base for oil drilling and production work |
08/09/1995 | EP0666120A1 Method for gaining place in a dump for fluid waste |
08/08/1995 | US5439054 Method for treating a mixture of gaseous fluids within a solid carbonaceous subterranean formation |
08/08/1995 | US5439051 Lateral connector receptacle |
08/08/1995 | CA2028010C System to deal with, extend and repair undersea lines, worked by remotely operated vehicle |
08/08/1995 | CA2002806F Rock anchor and method of manufacture |
07/27/1995 | CA2140234A1 Scoophead running tool |
07/25/1995 | US5435400 Lateral well drilling |
07/13/1995 | WO1995018911A1 Formation injection tool for down-bore in-situ disposal |
07/11/1995 | US5431236 Method for processing solid material for disposal in an underground porous formation |
07/05/1995 | CN1029254C Method and system for controlling travelling body so as to move forward along predetermined route of movement of travelling body |
06/27/1995 | US5427177 Multi-lateral selective re-entry tool |
06/21/1995 | EP0621811B1 Improved method of disposal of contaminated cuttings |
06/20/1995 | US5425429 Method and apparatus for forming lateral boreholes |
06/20/1995 | US5425416 Formation injection tool for down-bore in-situ disposal of undesired fluids |
06/13/1995 | US5423387 Method for sidetracking below reduced-diameter tubulars |
06/07/1995 | EP0656459A1 Method for treating oil wells |
06/01/1995 | WO1995014543A1 A method for disposing of drilling wastes |
05/30/1995 | CA2058566C Harness method and apparatus |
05/02/1995 | US5411082 Scoophead running tool |
04/26/1995 | EP0649352A1 Waste disposal in hydraulically fractured earth formations |
04/18/1995 | US5408325 Apparatus for measuring the profile of a moving object |
04/11/1995 | US5405224 Subterranean disposal of liquid and slurried solids wastes |
04/11/1995 | US5405223 Method for treating drill cuttings during oil and gas drilling |
04/04/1995 | US5402857 Oil and gas well cuttings disposal system |
03/14/1995 | US5396960 Vent gas flame suppressing apparatus for offshore oil and gas producing platforms |
02/28/1995 | US5392862 Flow control sub for hydraulic expanding downhole tools |
02/28/1995 | US5392856 Slickline setting tool and bailer bottom for plugback operations |
02/22/1995 | EP0639240A1 Microencapsulated oil field chemicals and process for their use. |