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Harold J Vinegar, Peter Veenstra, Steven Paul Giles, Chester L Sandberg, Frederick Henry Kreisler Rambow, Christopher Kelvin Harris, Lanny Gene Schoeling, Mark Gregory Picha, Etuan Zhang, Gary Beer, Fredrick Gordon Carl Jr, Taixu Bai, Dong Sub Kim, Michael David Fairbanks, Guillermo Pastor Sanz: Thermal processes for subsurface formations. Shell Oil Company, October 17, 2006: US07121342 (285 worldwide citation)

A process may include providing heat from one or more heaters to at least a portion of a subsurface formation. Heat may transfer from one or more heaters to a part of a formation. In some embodiments, heat from the one or more heat sources may pyrolyze at least some hydrocarbons in a part of a subsu ...


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Anthony Thomas Cole, Lawrence James Bielamowicz, Fredrick Gordon Carl Jr, John Matthew Coles, Eric Pierre de Rouffignac, Bruce Gerard Hunsucker, John Michael Karanikas, James Louis Menotti, Christopher Arnold Pratt, Harold J Vinegar, Scott Lee Wellington: Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation. Shell Oil Company, February 28, 2006: US07004247 (227 worldwide citation)

An oil shale formation may be treated using an in situ thermal process. Hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation from one or more heat sources to raise a temperature of a portion of the formation to a desired temperature ...


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Harold J Vinegar, Chester Ledlie Sandberg, Christopher Kelvin Harris, Jaime Santos Son, Fredrick Gordon Carl Jr: Conductor-in-conduit temperature limited heaters. Shell Oil Company, October 17, 2006: US07121341 (186 worldwide citation)

A heater may include an electrical conductor. Applying alternating current to the electrical conductor may generate resistively heat the electrical conductor. The electrical conductor may include an electrically resistive ferromagnetic material. The ferromagnetic material may at least partially surr ...


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Chester Ledlie Sandberg, Harold J Vinegar, Christopher Kelvin Harris, Jaime Santos Son, Fredrick Gordon Carl Jr: High voltage temperature limited heaters. Shell Oil Company, August 7, 2012: US08238730 (46 worldwide citation)

A heater system may include an alternating current supply and an electrical conductor. An alternating current may be applied to one or more electrical conductors at a voltage above about 200 volts. The electrical conductors may be located in a formation. The electrical conductors may provide an elec ...


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Harold J Vinegar, Chester Ledlie Sandberg, Christopher Kelvin Harris, Jaime Santos Son, James Louis Menotti, Fredrick Gordon Carl Jr: Temperature limited heaters for heating subsurface formations or wellbores. Shell Oil Company, June 12, 2012: US08200072 (46 worldwide citation)

Systems and methods are described for heating a subsurface formation. Alternating electrical current may be applied to one or more electrical conductors. The electrical conductors may be located in a subsurface formation. The electrical conductors may provide an electrically resistive heat output up ...


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Chester Ledlie Sandberg, Harold J Vinegar, Christopher Kelvin Harris, Jaime Santos Son, Fredrick Gordon Carl Jr: Insulated conductor temperature limited heaters. Shell Oil Company, July 17, 2012: US08224164 (43 worldwide citation)

A heater may include an electrical conductor. Applying alternating current to the electrical conductor may resistively heat the electrical conductor. The electrical conductor may include an electrically resistive ferromagnetic material. The ferromagnetic material may at least partially surround a no ...


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Eric Pierre de Rouffignac, Harold J Vinegar, John Michael Karanikas, James Louis Menotti, John Matthew Coles, Bruce Gerard Hunsucker, Lawrence James Bielamowicz, Fredrick Gordon Carl: In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources. Del Christensen, Shell Oil Company, March 14, 2002: US20020029881-A1 (2 worldwide citation)

A hydrocarbon containing formation may be treated using an in situ thermal process. Hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation from heat sources to raise a temperature of a portion of the formation to a desired temperature ...


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Harold J Vinegar, Fredrick Gordon Carl, John Matthew Coles, Eric Pierre de Rouffignac, Bruce Gerard Hunsucker, James Louis Menotti, Scott Lee Wellington: Removable heat sources for in situ thermal processing of an oil shale formation. Del Christensen, Shell Oil Company, August 7, 2003: US20030146002-A1 (2 worldwide citation)

An oil shale formation may be treated using an in situ thermal process. Heat may be applied to the formation from one or more heat sources to raise a temperature of a portion of the formation to a desired temperature. Hydrocarbons, H2, and/or other formation fluids may be produced from the formation ...



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