1
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 (286 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 ...


2
Harold J Vinegar, Christopher Kelvin Harris, Robin Adrianus Hartmann, Christopher Arnold Pratt, Gordon Bruce Lepper, Randolph Rogers Wagner: Forming openings in a hydrocarbon containing formation using magnetic tracking. Shell Oil Company, January 31, 2006: US06991045 (193 worldwide citation)

A method for forming one or more openings in a hydrocarbon containing formation is described. The method may include forming or providing a first opening in the formation. A plurality of magnets may be provided into the first opening. The plurality of magnets may be positioned along a portion of the ...


3
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 (187 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 ...


4
Christopher Kelvin Harris: Triaxial temperature limited heater. Shell Oil Company, May 13, 2008: US07370704 (144 worldwide citation)

Certain embodiments provide a heater. The heater includes an inner electrical conductor. A heater section at least partially surrounds the inner electrical conductor. The heater section is configured to generate an electrically resistive heat output during application of time-varying electrical curr ...


5
Chester Ledlie Sandberg, Harold J Vinegar, Christopher Kelvin Harris: Variable frequency temperature limited heaters. Shell Oil Company, February 17, 2009: US07490665 (137 worldwide citation)

Certain embodiments provide a heating system configured to heat at least a part of a subsurface formation. The system includes an electrical power supply. A heater section includes one or more electrical conductors electrically coupled to the electrical power supply. The heater section is configured ...


6
Harold J Vinegar, Christopher Kelvin Harris: Temperature limited heaters with thermally conductive fluid used to heat subsurface formations. Shell Oil Company, June 10, 2008: US07383877 (136 worldwide citation)

Certain embodiments provide a system including a heater. The heater includes one or more electrical conductors. The heater is configured to generate a heat output during application of electrical current to the heater. The heater includes a ferromagnetic material. A conduit at least partially surrou ...


7
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, Frederick Gordon Carl Jr, Taixu Bai, Dong Sub Kim, Michael David Fairbanks, Guillermo Pastor Sanz: Thermal processes for subsurface formations. Shell Oil Company, April 22, 2008: US07360588 (135 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 ...


8
Harold J Vinegar, Chester Ledlie Sandberg, Christopher Kelvin Harris: Temperature limited heaters with relatively constant current. Shell Oil Company, January 27, 2009: US07481274 (130 worldwide citation)

Certain embodiments provide a system configured to heat a subsurface formation. The system includes an electrical power supply. A heater section includes one or more electrical conductors electrically coupled to the electrical power supply. At least one of the electrical conductors includes ferromag ...


9
Harold J Vinegar, Christopher Kelvin Harris, Stanley Leroy Mason: Non-ferromagnetic overburden casing. Shell Oil Company, September 14, 2010: US07793722 (91 worldwide citation)

Systems, methods, and heaters for treating a subsurface formation are described herein. At least one system for electrically insulating an overburden portion of a heater wellbore is described. The system may include a heater wellbore located in a subsurface formation and an electrically insulating c ...


10
Christopher Kelvin Harris, John Michael Karanikas, Scott Vinh Nguyen: Parallel heater system for subsurface formations. Shell Oil Company, October 25, 2011: US08042610 (70 worldwide citation)

A heating system for a subsurface formation is disclosed. The system includes a plurality of substantially horizontally oriented or inclined heater sections located in a hydrocarbon containing layer in the formation. At least a portion of two of the heater sections are substantially parallel to each ...