1
Harold J Vinegar, Chester Ledlie Sandberg: Temperature limited heater with a conduit substantially electrically isolated from the formation. Shell Oil Company, July 14, 2009: US07559367 (166 worldwide citation)

A system for heating a hydrocarbon containing formation is described. A conduit may be located in an opening in the formation. The conduit includes ferromagnetic material. An electrical conductor is positioned inside the conduit, and is electrically coupled to the conduit at or near an end portion o ...


2
Vinegar Harold J, Sandberg Chester Ledlie: Temperature limited heater with a conduit substantially electrically isolated from the formation. Shell Int Research, wangchang jing, October 29, 2008: CN200680039493

A system for heating stratum containing hydrocarbon includes a conduit tube locating in the opening of the stratum. Electric conductors are located in the conduit tube. The electric conductors form a heater, which is electrically isolated with the stratum, thereby reducing the electric loss onto the ...


3
Vinegar Harold J, Sandberg Chester Ledlie: Temperature limited heater with a conduit substantially electrically isolated from the formation. Shell Oil, July 9, 2008: EP1941126-A1

A system for treating a hydrocarbon containing formation (212) includes a steam and electricity cogeneration facility (218) . At least one injection well (216) is located in a first portion of the formation. The injection well is configured to provide steam from the steam and electricity cogeneratio ...


4
Harold J Vinegar, Chester Ledlie Sandberg: Temperature limited heater with a conduit substantially electrically isolated from the formation. Shell Oil Company, January 24, 2008: US20080017370-A1

A system for heating a hydrocarbon containing formation is described. A conduit may be located in an opening in the formation. The conduit includes ferromagnetic material. An electrical conductor is positioned inside the conduit, and is electrically coupled to the conduit at or near an end portion o ...


5
Vinegar Harold J, Sandberg Chester Ledlie: Temperature limited heater with a conduit substantially electrically isolated from the formation. Shell Internationale Research Maatschappij, Vinegar Harold J, Sandberg Chester Ledlie, SHELL INTERNATIONAL, May 3, 2007: WO/2007/050469

A system for heating a hydrocarbon containing formation includes a conduit located in an opening in the formation. An electrical conductor is positioned inside the conduit. The electrical conductor forms a heater which is electrically isolated from the formation thereby reducing electrical losses to ...


6
Vinegar Harold J, Sandberg Chester Ledlie: Temperature limited heater with a conduit substantially electrically isolated from the formation. Shell Internationale Research Maatschappij, August 6, 2008: KR1020087011678

A system for heating a hydrocarbon containing formation includes a conduit located in an opening in the formation. An electrical conductor is positioned inside the conduit. The electrical conductor forms a heater which is electrically isolated from the formation thereby reducing electrical losses to ...


7
VINEGAR HAROLD J, SANDBERG CHESTER LEDLIE: RADIATEUR LIMITE EN TEMPERATURE AVEC UN CONDUIT SENSIBLEMENT ISOLE DE MANIERE ELECTRIQUE DE LA FORMATION, TEMPERATURE LIMITED HEATER WITH A CONDUIT SUBSTANTIALLY ELECTRICALLY ISOLATED FROM THE FORMATION. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ, SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ, NORTON ROSE FULBRIGHT CANADA S E N C R L S R L, June 10, 2014: CA2626969

A system for heating a hydrocarbon containing formation includes a conduit located in an opening in the formation. An electrical conductor is positioned inside the conduit. The electrical conductor forms a heater which is electrically isolated from the formation thereby reducing electrical losses to ...