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Brevets

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Brevet citant Date de dépôt Date de délivrance Cessionnaire d'origine Titre
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US710431924 oct. 200212 sept. 2006Shell Oil CompanyIn situ thermal processing of a heavy oil diatomite formation
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US712134124 oct. 200317 oct. 2006Shell Oil CompanyConductor-in-conduit temperature limited heaters
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US715617624 oct. 20022 janv. 2007Shell Oil CompanyInstallation and use of removable heaters in a hydrocarbon containing formation
US716561524 oct. 200223 janv. 2007Shell Oil CompanyIn situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden
US721973424 oct. 200322 mai 2007Shell Oil CompanyInhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation
US722586631 janv. 20065 juin 2007Shell Oil CompanyIn situ thermal processing of an oil shale formation using a pattern of heat sources
US736058817 oct. 200622 avr. 2008Shell Oil CompanyThermal processes for subsurface formations
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US76409807 avr. 20085 janv. 2010Shell Oil CompanyThermal processes for subsurface formations
US77359351 juin 200715 juin 2010Shell Oil CompanyIn situ thermal processing of an oil shale formation containing carbonate minerals
US790070113 janv. 20068 mars 2011Encana CorporationIn situ combustion in gas over bitumen formations
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US81670407 mars 20111 mai 2012Encana CorporationIn situ combustion in gas over bitumen formations
US820007224 oct. 200312 juin 2012Shell Oil CompanyTemperature limited heaters for heating subsurface formations or wellbores
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US822416324 oct. 200317 juil. 2012Shell Oil CompanyVariable frequency temperature limited heaters
US822416424 oct. 200317 juil. 2012Shell Oil CompanyInsulated conductor temperature limited heaters
US823873024 oct. 20037 août 2012Shell Oil CompanyHigh voltage temperature limited heaters
USRE3001930 juin 19775 juin 1979Chevron Research CompanyProduction of hydrocarbons from underground formations

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