Patents for E21B 41 - Equipment or details not covered by groups (7,984)
04/2002
04/09/2002US6368403 Heating molten silicon in container and providing controllable amounts of oxygen gas and hydrogen gas to melt
04/09/2002US6367565 Means for detecting subterranean formations and monitoring the operation of a down-hole fluid driven percussive piston
04/04/2002WO2002027139A1 Method and system for wireless communications for downhole applications
04/04/2002WO2001086115A3 A method for treating a hydrocarbon containing formation
04/04/2002US20020040177 In situ thermal processing of a hydrocarbon containig formation, in situ production of synthesis gas, and carbon dioxide sequestration
04/04/2002US20020040173 Providing heat from one or more heat sources to at least one portion of formation; allowing heat to transfer from the one or more heat sources to a selected section of the formation; controlling the heat; producing a mixture from the formation
04/04/2002US20020039486 In situ thermal processing of a coal formation using heat sources positioned within open wellbores
04/04/2002US20020039465 Multiplexed distribution of optical power
04/04/2002US20020038727 Drill pipe protector assembly
04/04/2002US20020038712 In situ production of synthesis gas from a coal formation through a heat source wellbore
04/04/2002US20020038711 Pyrolysis
04/04/2002US20020038710 In situ thermal processing of a hydrocarbon containing formation having a selected total organic carbon content
04/04/2002US20020038709 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
04/04/2002US20020038708 In situ thermal processing of a coal formation to produce a condensate
04/04/2002US20020038706 In situ thermal processing of a coal formation with a selected vitrinite reflectance
04/04/2002US20020038705 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content
04/03/2002EP1193367A1 Drilling or coring machine
04/03/2002EP1193366A2 Method and apparatus for prediction control in drilling dynamics using neural network
04/03/2002EP1192715A2 Opto-electrical actuation system and method
04/03/2002EP0993540B1 Device and method for creating ramifications in a bore hole
04/03/2002CN1082128C Method of assaying work of waderground bit
04/02/2002US6364021 Well management system and method of operation
04/02/2002US6364014 Flow monitoring and control in multi-lateral wellbores
03/2002
03/28/2002WO2002025319A2 Methods and apparatus for interactive communications
03/28/2002WO2002025059A1 Method and apparatus for completing wells with expanding packers for casing annulus and formation isolation
03/28/2002WO2002025057A1 Apparatus comprising bistable structures for use in oil and gas wells
03/28/2002WO2001081716A3 A method for sequestering a fluid within a hydrocarbon containing formation
03/28/2002WO2001065718A3 Wireless power and communications cross-bar switch
03/28/2002WO2000054028A9 System and method for monitoring corrosion in oilfield wells and pipelines utilizing time-domain-reflectometry
03/28/2002US20020038069 In situ thermal processing of a coal formation to produce a mixture of olefins, oxygenated hydrocarbons, and aromatic hydrocarbons
03/28/2002US20020036103 In situ thermal processing of a coal formation by controlling a pressure of the formation
03/28/2002US20020036089 In situ thermal processing of a hydrocarbon containing formation using distributed combustor heat sources
03/28/2002US20020036085 Toroidal choke inductor for wireless communication and control
03/28/2002US20020036084 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation
03/28/2002US20020036083 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer
03/28/2002CA2423586A1 Methods and apparatus for interactive communications
03/28/2002CA2422800A1 Apparatus comprising bistable structures for use in oil and gas wells
03/27/2002EP1097287A4 Floating spar for supporting production risers
03/27/2002CN1341802A Continuous pumping rod operation machine
03/26/2002US6360823 Apparatus and method for performing downhole measurements
03/21/2002WO2001081717A3 Method for treating a hydrocarbon-containing formation
03/21/2002US20020035307 Pyrolysis
03/21/2002US20020034668 For powering a tool in a well
03/21/2002US20020034380 In situ thermal processing of a coal formation with a selected moisture content
03/21/2002US20020033280 In situ thermal processing of a coal formation with carbon dioxide sequestration
03/21/2002US20020033278 Cuttings injection system and method
03/21/2002US20020033257 In situ thermal processing of hydrocarbons within a relatively impermeable formation
03/21/2002US20020033256 Process control; heating
03/21/2002US20020033255 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment
03/21/2002US20020033254 In situ thermal processing of a coal formation to control product composition
03/21/2002US20020033253 In situ thermal processing of a hydrocarbon containing formation using insulated conductor heat sources
03/20/2002CN2482583Y Automatic non-derail self-unloading tackle
03/19/2002US6357539 Apparatus for retrieving metal objects from a wellbore
03/19/2002US6357524 System for using inert gas in oil recovery operations
03/14/2002WO2002020939A1 Method and system for perforating
03/14/2002US20020029908 Electrically sequenced tractor
03/14/2002US20020029889 Deviated borehole drilling assembly
03/14/2002US20020029885 In situ thermal processing of a coal formation using a movable heating element
03/14/2002US20020029884 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas
03/14/2002US20020029883 System and method for fluid flow optimization
03/14/2002US20020029882 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas
03/14/2002US20020029881 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources
03/14/2002US20020029718 Pipe racking system track cover
03/14/2002US20020029574 Apparatus for dissolving, liquefying and introducing CO2 gas into the deep sea for storage there
03/12/2002US6354386 Apparatus for retrieving metal objects from a wellbore
03/12/2002US6354375 Lateral well tie-back method and apparatus
03/12/2002CA2035823C Method and system for controlling vibrations in borehole equipment
03/07/2002WO2002018740A1 Improved method for drilling multi-lateral wells with reduced under-reaming and related device
03/07/2002WO2002018738A1 Improved method for drilling multi-lateral wells and related device
03/07/2002WO2002018727A1 Work platform for blowout preventer stacks
03/07/2002US20020027004 Computer controlled injection wells
03/07/2002US20020027001 In situ thermal processing of a coal formation to produce a selected gas mixture
03/06/2002CN1339083A Method for creating secondary sidetracks in a well system
03/06/2002CN1339082A Multilateral well and electrical transmission system
03/06/2002CN1080362C Chemicals for increasing productivity of oil and gas fields and method therefor
03/05/2002US6353799 Method and apparatus for determining potential interfacial severity for a formation
02/2002
02/28/2002US20020023759 Method and apparatus of operating devices using actuators having expandable or contractable elements
02/28/2002US20020023758 Deviated borehole drilling assembly
02/28/2002US20020023757 Deviated borehole drilling assembly
02/28/2002US20020023756 Deviated borehole drilling assembly
02/28/2002US20020023754 Method for drilling multilateral wells and related device
02/28/2002US20020023753 Method for drilling multilateral wells with reduced under-reaming and related device
02/28/2002US20020023747 Deviated borehole drilling assembly
02/28/2002US20020023746 Methods of downhole testing subterranean formations and associated apparatus therefor
02/28/2002US20020023745 Deviated borehole drilling assembly
02/28/2002US20020023569 Pipe racking system track cover
02/27/2002CN2479203Y Brake booster for petroleum dill rig and servicing rig
02/27/2002CN1079879C Drilling device, drilling system and drilling method
02/26/2002US6349769 Apparatus and method for establishing branch wells from a parent well
02/26/2002US6349768 Method and apparatus for all multilateral well entry
02/26/2002US6349767 Disconnect tool
02/26/2002US6349766 Chemical actuation of downhole tools
02/26/2002CA2237093C Portable flare tank for degassing of drilling fluid
02/21/2002US20020020533 Production well telemetry system and method
02/21/2002US20020020531 Method and apparatus for cementing branch wells from a parent well
02/19/2002US6347674 Electrically sequenced tractor
02/14/2002WO2002012113A1 Web-based system and method for evaluating oil and gas properties
02/14/2002US20020017387 Methods of downhole testing subterranean formations and associated apparatus therefor
02/14/2002US20020017386 Methods of downhole testing subterranean formations and associated apparatus therefor
02/12/2002US6345672 Method and apparatus for handling and disposal of oil and gas well drill cuttings
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