| Patents for E21B 41 - Equipment or details not covered by groups (7,984) |
|---|
| 02/21/1995 | CA1334483C Subsea guidebase |
| 02/15/1995 | EP0638747A2 Interface system for connecting a remote-operated vehicle to subsea pipeline support |
| 02/14/1995 | US5390153 Measuring while drilling employing cascaded transmission systems |
| 02/14/1995 | US5388648 Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells using deformable sealing means |
| 02/07/1995 | US5387737 Disposing the solid waste in a subterranean by injecting a solid-free liquid with high pressure gas to liquefaction |
| 02/07/1995 | US5387736 Portable decontamination system and method for environmental well drilling rigs |
| 02/07/1995 | CA2017640C Well completions |
| 01/31/1995 | US5385060 Device for the assembly or disassembly of probes in process pipes, tanks, etc. |
| 12/27/1994 | US5377104 Passive seismic imaging for real time management and verification of hydraulic fracturing and of geologic containment of hazardous wastes injected into hydraulic fractures |
| 12/22/1994 | WO1994029572A1 Method and apparatus for communicating coded messages in a wellbore |
| 12/22/1994 | WO1994029568A1 Multi-lateral selective re-entry tool |
| 12/22/1994 | WO1994029563A1 Method for completing multi-lateral wells and maintaining selective re-entry into laterals |
| 12/22/1994 | WO1994029562A1 Scoophead/diverter assembly for completing lateral wellbores |
| 12/22/1994 | CA2142112A1 Scoophead/diverter assembly for completing lateral wellbores |
| 12/13/1994 | US5372458 System for treating drilling mud containing potassium chloride (KCl) for disposal |
| 12/13/1994 | US5372192 Drag block for increasing the fluid resistance of well production tubing inadvertently dropped in a cased hole of an oil or gas well |
| 12/09/1994 | CA2098000A1 Perforation cleaning tools |
| 12/06/1994 | US5370799 Elevated temperature-pressure flow simulator |
| 11/30/1994 | CN1026812C Assisting spraying pipe apparatus freely suspended in deep well |
| 11/30/1994 | CN1026811C Novel well finishing apparatus |
| 11/29/1994 | US5369579 Electronic blast control system for downhole well operations |
| 11/29/1994 | CA2010746C Sub-sea valve actuator |
| 11/24/1994 | WO1994027023A1 Drill bit and other downhole tools |
| 11/10/1994 | WO1994025722A1 Drill rig having automatic spindle stop |
| 11/10/1994 | CA2136726A1 Drill rig having automatic spindle stop |
| 11/09/1994 | CN1026503C Corrosion inhibitor for oil field |
| 11/08/1994 | US5361998 Plant for treating drill cuttings |
| 11/08/1994 | CA2012328C Corrosion inhibition method and apparatus for downhole electrical heating in mineral fluid wells |
| 11/08/1994 | CA2012327C Corrosion inhibition apparatus for downhole electrical heating |
| 11/02/1994 | EP0621937A1 Removal of contaminants |
| 11/02/1994 | EP0621811A1 Improved method of disposal of contaminated cuttings. |
| 11/01/1994 | US5360072 Drill rig having automatic spindle stop |
| 10/11/1994 | US5353876 Method and apparatus for sealing the juncture between a verticle well and one or more horizontal wells using mandrel means |
| 10/04/1994 | US5351756 Contacting in situ with a solution of water, anti-hydrate stabilizers which able to vaporize at low temperature than water, separating the stabilizer from gases by condensation, recycling to reuse |
| 09/29/1994 | WO1994021393A1 Waste disposal in hydraulically fractured earth formations |
| 09/11/1994 | CA2118673A1 Plug or lock for use in oil field tubular members and an operating system therefor |
| 09/06/1994 | US5345077 Method and apparatus for producing a porosity log of a subsurface formation corrected for detector standoff |
| 09/06/1994 | US5343963 Method and apparatus for providing controlled force transference to a wellbore tool |
| 09/06/1994 | US5343943 Portable oil-drilling waste recovery system |
| 09/06/1994 | US5343941 Apparatus for treating oil and gas wells |
| 08/30/1994 | US5342148 Method and system for developing offshore hydrocarbon reserves |
| 08/30/1994 | US5341882 Well drilling cuttings disposal |
| 08/30/1994 | CA2053425C Method and apparatus for gravel packing of wells |
| 08/23/1994 | US5340237 Guide-post interchangeability mechanism operated by remotely controlled vehicle |
| 08/23/1994 | US5339912 Cuttings disposal system |
| 08/17/1994 | EP0610366A1 Gravel-packed pipeline and method and apparatus for installation thereof |
| 08/16/1994 | US5339241 Method and system for controlling a travelling body so as to move forward along the predetermined route of the movement of travelling body |
| 08/16/1994 | US5337966 Method and apparatus for the reduction and classification of solids particles |
| 08/16/1994 | US5337819 Washing tool |
| 08/16/1994 | US5337808 Technique and apparatus for selective multi-zone vertical and/or horizontal completions |
| 08/16/1994 | US5337489 Instrument |
| 08/09/1994 | US5335732 Oil recovery combined with injection of produced water |
| 08/09/1994 | US5335728 Method and apparatus for disposing of water at gas wells |
| 08/04/1994 | WO1994016837A1 Subterranean disposal of liquid and slurried wastes |
| 08/04/1994 | CA2154547A1 Subterranean disposal of liquid and slurried wastes |
| 08/02/1994 | US5333691 ROV installable junction plate and method |
| 07/21/1994 | WO1994016193A1 Data and signal transmitting installation for controlling and monitoring underwater ramming and cutting-off machinery, or the like |
| 07/19/1994 | US5330017 Method of processing drilling mud in earth-boring operations |
| 07/19/1994 | US5330016 Drill bit and other downhole tools having electro-negative surfaces and sacrificial anodes to reduce mud balling |
| 07/05/1994 | US5325924 Method and apparatus for locating and re-entering one or more horizontal wells using mandrel means |
| 06/21/1994 | US5322127 Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells |
| 06/15/1994 | EP0601811A2 Measurement-while-drilling system using mud-pulse valve for data transmission |
| 06/14/1994 | CA2041960C Control apparatus and method responsive to a changing stimulus |
| 06/07/1994 | US5318382 Method and apparatus for hydraulic embedment of waste in subterranean formations |
| 06/07/1994 | US5318136 Drilling process and apparatus |
| 06/07/1994 | US5318130 Selective downhole operating system and method |
| 06/07/1994 | US5318122 Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells using deformable sealing means |
| 06/07/1994 | US5318121 Method and apparatus for locating and re-entering one or more horizontal wells using whipstock with sealable bores |
| 05/31/1994 | US5316086 Combination well casing pressure relief and kill valve apparatus |
| 05/25/1994 | EP0426773B1 Undersea package and installation system |
| 05/25/1994 | CN2166218Y Hydraulic anchor block |
| 05/24/1994 | US5314265 Waste disposal in hydraulically fractured earth formations |
| 05/17/1994 | US5312163 System for aiding operation of excavating type underground advancing machine |
| 05/17/1994 | US5311955 Installation for cleaning the zone near the drill hole |
| 05/17/1994 | US5311936 Method and apparatus for isolating one horizontal production zone in a multilateral well |
| 05/10/1994 | US5310285 Device for reclaiming and disposal of drilling wastes and method of use therefore |
| 05/10/1994 | US5310282 Hydrocarbon recovery from drilling mud stored in salt cavity |
| 05/10/1994 | CA1329319C Oil removal from hydrocarbon contaminated cuttings |
| 05/05/1994 | DE4300074C1 Signal and data transmission device for underwater operating plant - uses communications umbilical coupled to separate underwater device linked to plant via cable or radio link |
| 04/27/1994 | CN1024364C Method for treatment of tail waste of insoluble sodium carbonate stone underground |
| 04/21/1994 | DE4235378A1 Method for erosion injection into soils etc - uses continuous process to cut open and mill out soil, and inject binding agent suspension continuously into hole |
| 04/13/1994 | EP0592160A1 Setting tool and related method |
| 04/12/1994 | US5301760 Completing horizontal drain holes from a vertical well |
| 04/05/1994 | CA1328217C Carriage for mooring and connecting flexible lines on a base |
| 03/29/1994 | CA2022195C Hydraulically operated permanent type well packer assembly |
| 03/24/1994 | DE4231025A1 Deep drilling tool drive assembly of tubular form - in which a residual core can grow within a core pipe which extends through the pipe |
| 03/22/1994 | US5295817 Apparatus and method for combusting crude oil |
| 03/16/1994 | EP0586428A1 Apparatus for measuring the profile of a moving object. |
| 03/15/1994 | US5293946 Divergent fluid nozzle for drilling tool |
| 03/08/1994 | US5292429 Thermal distillation |
| 03/02/1994 | EP0584997A2 Downhole tool operating system and method |
| 03/01/1994 | US5289876 Completing wells in incompetent formations |
| 02/23/1994 | EP0583987A2 Apparatus for combusting crude oil |
| 02/20/1994 | CA2104250A1 Apparatus and method for combusting crude oil |
| 02/17/1994 | WO1994003702A1 Method and apparatus for sealing the juncture between a vertical and horizontal well |
| 02/17/1994 | WO1994003701A1 Method and apparatus for sealing the juncture between a vertical and horizontal well |
| 02/17/1994 | WO1994003699A1 Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells |
| 02/17/1994 | WO1994003698A1 Method and apparatus for locating and re-entering one or more horizontal wells using whipstocks |
| 02/17/1994 | WO1994003697A1 Method and apparatus for locating and re-entering one or more horizontal wells using mandrel means |
| 02/17/1994 | WO1994003280A1 Coating of components |