| Patents for E21B 41 - Equipment or details not covered by groups (7,984) |
|---|
| 04/06/1993 | US5199997 Treatment of hydrocarbon-contaminated particulate materials |
| 04/06/1993 | US5199821 Method for conducting offshore well operations |
| 04/06/1993 | US5199497 Shape-memory actuator for use in subterranean wells |
| 03/30/1993 | US5197826 Offshore gas flare system |
| 03/24/1993 | EP0533550A1 Divergent nozzle for drilling tool and tool using this nozzle |
| 03/23/1993 | US5195848 Method and system for developing offshore hydrocarbon reserves |
| 03/23/1993 | US5195585 Wireline retrievable jet cleaning tool |
| 03/23/1993 | CA1314970C Measurement of corrosion with curved ultrasonic transducer; rule-based processing of full echo waveforms; preprocessing and transmitting echo waveform information |
| 03/18/1993 | WO1993005269A1 Improved slip stream device with adjustable choke, and method of choking a fluid flow path |
| 03/09/1993 | US5192167 Subsea production system |
| 03/09/1993 | US5192164 Soda ash production |
| 03/03/1993 | EP0530045A1 Modulated bias units for steerable rotary drilling systems |
| 03/03/1993 | EP0516630A4 Process for recovery and treatment of a diverse waste stream |
| 03/02/1993 | US5190664 Preventing fouling caused by high temperature geothermal brines, adding sulfuric acid to brine |
| 03/02/1993 | US5190411 Tension leg well jacket |
| 02/23/1993 | US5189388 Oil well pump start-up alarm |
| 02/23/1993 | US5188183 Method and apparatus for controlling the flow of well bore fluids |
| 02/23/1993 | US5188179 Oxidizing hydrogen sulfide to polysulfides which react with free iron to precipitate iron disulfide; continuous processing |
| 02/23/1993 | US5188172 Automatic downhole well shut-in control valve |
| 02/16/1993 | US5186579 Apparatus for controlling direction of underground excavator |
| 01/27/1993 | CN1068392A Oil-bleeding disconnector |
| 01/26/1993 | US5182730 Method and apparatus for transmitting information in a borehole employing signal discrimination |
| 01/26/1993 | CA1313128C Method of treating a permeable formation |
| 01/20/1993 | EP0523823A1 Use of machine oil for making a corrosion-resistant protactive coat at screw connections for oil-well pipes |
| 01/19/1993 | CA2074132A1 Method of producing a corrosion-protective layer on pipe threads |
| 01/05/1993 | US5176216 Bypass seating nipple |
| 12/30/1992 | EP0520733A1 Steerable rotary drilling system |
| 12/30/1992 | EP0315636B1 Method and system for attaching and removing equipment from a wellhead |
| 12/29/1992 | US5174394 Apparatus for cleaning layers of earth |
| 12/29/1992 | US5174380 Gas venting apparatus |
| 12/23/1992 | EP0519793A2 Device and installation for the cleaning of drain pipes, in particular in oil production wells |
| 12/23/1992 | EP0235249B1 In situ hazardous waste treating apparatus and method of using same |
| 12/16/1992 | EP0517807A1 Process and apparatus for cleaning particulate solids |
| 12/09/1992 | EP0516630A1 Process for recovery and treatment of a diverse waste stream |
| 12/08/1992 | US5168933 Combination hydraulic tubing hanger and chemical injection sub |
| 11/26/1992 | WO1992020995A1 Apparatus for measuring the profile of a moving object |
| 11/24/1992 | US5165478 Downhole activated process and apparatus for providing cathodic protection for a pipe in a wellbore |
| 11/24/1992 | US5165477 Enzymatic decomposition of drilling mud |
| 11/24/1992 | US5165235 System for using geopressured-geothermal reservoirs |
| 11/21/1992 | CA2069057A1 Downhole reeled tubing inspection system with fiberoptic cable |
| 11/19/1992 | EP0513296A1 Device for the assembly or disassembly of probes in process pipes, tanks, etc. |
| 11/19/1992 | DE4115563A1 System for double lining pipes - first closes branch pipes before rolling in hose filled with glass-fibre plastics |
| 11/12/1992 | WO1992019561A1 A process for preparing products which require treating or drying of crushed stone materials |
| 11/11/1992 | EP0512331A1 Device for cleaning the well-bore-surrounding-zone |
| 11/11/1992 | EP0512063A1 Apparatus for inductively coupling signals between a downhole sensor and the surface |
| 11/10/1992 | US5161639 Derrick counterweight assembly |
| 11/10/1992 | US5161619 Environmentally safe |
| 11/10/1992 | US5161612 Well casing wash assembly |
| 11/10/1992 | US5161294 Tool device for use in replacing an instrument disposed in a normally inaccesible or dangerous environment |
| 11/04/1992 | EP0511296A1 Cleaning device |
| 10/27/1992 | WO1992019836A1 Engine for performing subsea operations and devices driven by such an engine |
| 10/27/1992 | US5158141 Coupling arrangement for components in subsea structures and a remotely operated tool unit for handling such components |
| 10/27/1992 | CA2109107A1 Machine for subsea operations |
| 10/14/1992 | EP0507925A1 Hydraulic embedment of waste in subterranean formations. |
| 10/13/1992 | US5154230 Polymerizing resin to form colsolidate matrix that prevents fl ow of sand |
| 10/11/1992 | WO1992018151A1 Ablating gelatin pig and method for use in tubulars |
| 10/11/1992 | CA2104298A1 Ablating gelatin pig and method for use in tubulars |
| 10/07/1992 | CN1018571B Sub-sea valve actuator |
| 10/06/1992 | US5152177 Process for the detection and quantitation of corrosion and scale inhibitors in produced well fluids |
| 09/22/1992 | US5150333 Method and apparatus for providing improved pressure pulse characteristics for measuring while drilling |
| 09/22/1992 | US5149984 Electric power supply for use downhole |
| 09/19/1992 | CA2062258A1 Method for dumping and disposing of carbon dioxide gas and apparatus therefor |
| 09/15/1992 | US5147148 Heave-restrained platform and drilling system |
| 09/15/1992 | US5146990 Anchoring structure for marine riser assembly |
| 09/15/1992 | US5146983 Hydrostatic setting tool including a selectively operable apparatus initially blocking an orifice disposed between two chambers and opening in response to a signal |
| 09/08/1992 | US5145013 Sand control with resin and explosive |
| 08/26/1992 | EP0500341A1 Downhole tool apparatus actuatable by pressure differential |
| 08/26/1992 | EP0500303A2 Electric power supply apparatus for use downhole |
| 08/25/1992 | US5141062 Tool actuator |
| 08/25/1992 | CA1306669C Method and apparatus for retrieving a running tool/guideframe assembly |
| 08/21/1992 | CA2061576A1 Differential actuating system for downhole tools |
| 08/14/1992 | CA2054809A1 Self-propelled drilling module |
| 08/05/1992 | EP0496850A1 Drill cuttings disposal method and system. |
| 08/05/1992 | CN2112005U Well cable positioning and protecting cutting ferrule |
| 08/04/1992 | US5135656 Process for removing water soluble organic compounds from produced water |
| 08/04/1992 | US5135053 Treatment of well tubulars with gelatin |
| 07/29/1992 | CN1063082A Method and system for conducting offshore well operations |
| 07/28/1992 | US5133624 Method and apparatus for hydraulic embedment of waste in subterranean formations |
| 07/21/1992 | US5131468 Packer slips for CRA completion |
| 07/21/1992 | CA1305406C Method and system to proportion assisting fluids in a well |
| 07/14/1992 | US5129469 Drill cuttings disposal method and system |
| 07/09/1992 | WO1992008875A3 Well completion system |
| 07/07/1992 | US5128046 Chelation, coagulation, water pollution control |
| 07/07/1992 | US5127457 Method and well system for producing hydrocarbons |
| 06/30/1992 | US5126051 Enzymatic decomposition of drilling mud |
| 06/30/1992 | US5125857 Harness method for use in cold weather oil field operations and apparatus |
| 06/16/1992 | US5121794 Waste fluid containment and recovery apparatus |
| 06/13/1992 | CA2032022A1 Down hole drilling tool control mechanism |
| 06/11/1992 | WO1992009723A1 Device for the assembly or disassembly of probes in process pipes, tanks, etc. |
| 06/11/1992 | WO1992009379A1 Plant for treating drill cuttings |
| 06/03/1992 | EP0488519A1 Downhole perforating tool |
| 06/02/1992 | US5117926 Method and system for controlling vibrations in borehole equipment |
| 06/02/1992 | US5117913 Chemical injection system for downhole treating |
| 05/29/1992 | WO1992009380A1 Method for treating drill cuttings during oil and gas drilling |
| 05/29/1992 | WO1992008875A2 Well completion system |
| 05/29/1992 | WO1992008823A1 Process for cleaning and degreasing, premix for use at the process and cleaning composition |
| 05/27/1992 | EP0486751A1 Directional drill string with an integrated electrical generator |
| 05/26/1992 | CA1301638C Pressure actuated cleaning tool |
| 05/22/1992 | CA2055077A1 Time delay perforating apparatus |
| 05/12/1992 | US5113379 Method and apparatus for communicating between spaced locations in a borehole |