1
Harold J Vinegar, Scott Vinh Nguyen: In situ heat treatment process utilizing a closed loop heating system. Shell Oil Company, December 7, 2010: US07845411 (115 worldwide citation)

Systems and methods for an in situ heat treatment process that utilizes a circulation system to heat one or more treatment areas are described herein. The circulation system may use a heated liquid heat transfer fluid that passes through piping in the formation to transfer heat to the formation. In ...


2
Scott Vinh Nguyen, Harold J Vinegar: Molten salt as a heat transfer fluid for heating a subsurface formation. Shell Oil Company, November 16, 2010: US07832484 (99 worldwide citation)

A heating system for a subsurface formation includes a conduit located in an opening in the subsurface formation. An insulated conductor is located in the conduit. A material is in the conduit between a portion of the insulated conductor and a portion of the conduit. The material may be a salt. The ...


3
Scott Vinh Nguyen, Harold J Vinegar: Heating systems for heating subsurface formations. Shell Oil Company, April 26, 2011: US07931086 (91 worldwide citation)

Methods and systems for heating a subsurface formation are described herein. A heating system for a subsurface formation includes a sealed conduit positioned in an opening in the formation and a heat source. The sealed conduit includes a heat transfer fluid. The heat source provides heat to a portio ...


4
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 ...


5
Scott Vinh Nguyen, Ronald M Bass: Induction heaters used to heat subsurface formations. Shell Oil Company, April 24, 2012: US08162059 (62 worldwide citation)

A heating system for a subsurface formation includes an elongated electrical conductor located in the subsurface formation. The electrical conductor extends between at least a first electrical contact and a second electrical contact. A ferromagnetic conductor at least partially surrounds and at leas ...


6
Harold J Vinegar, Scott Vinh Nguyen: Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation. Shell Oil Company, July 17, 2012: US08220539 (62 worldwide citation)

An in situ heat treatment system for producing hydrocarbons from a subsurface formation includes a plurality of wellbores in the formation. At least one heater is positioned in at least two of the wellbores. A self-regulating nuclear reactor provides energy to at least one of the heaters to heat the ...


7
Scott Vinh Nguyen, Renfeng Richard Cao: Circulated heated transfer fluid heating of subsurface hydrocarbon formations. Shell Oil Company, October 9, 2012: US08281861 (44 worldwide citation)

A method of heating a subsurface formation includes introducing a molten salt into a first passageway of a conduit-in-conduit heater at a first location. The molten salt is passed through the conduit-in-conduit heater in the formation to a second location. Heat transfers from the molten salt to a tr ...


8
Ernesto Rafael Fonseca Ocampos, James Joseph Venditto, Renfeng Richard Cao, Ronald Marshall Bass, Scott Vinh Nguyen, Antonio Maria Guimaraes Leite Cruz, Damodaran Raghu, Jaime Santos Son: Circulated heated transfer fluid systems used to treat a subsurface formation. Shell Oil Company, September 18, 2012: US08267185 (43 worldwide citation)

A method for heating a subsurface formation includes applying heat from a plurality of heaters to at least a portion of the subsurface formation. A portion of one or more of the heaters are allowed to move relative to the heaters respective wellhead using sliding seals to accommodate thermal expansi ...


9
Dhruv Arora, Ronald Marshall Bass, Graham Patrick Bradford, David Booth Burns, Eric Abreu Gesualdi, Scott Vinh Nguyen, Edward Everett de St Remey, Stephen Taylor Thompson: Methods for assessing a temperature in a subsurface formation. Shell Oil Company, January 22, 2013: US08356935 (26 worldwide citation)

Methods for assessing a temperature in an opening in a subsurface formation are described herein. A method may include assessing one or more dielectric properties along a length of an insulated conductor located in the opening and assessing one or more temperatures along the length of the insulated ...


10
Scott Vinh Nguyen: Leak detection in circulated fluid systems for heating subsurface formations. Shell Oil Company, January 21, 2014: US08631866 (18 worldwide citation)

A method of treating a subsurface formation includes circulating at least one molten salt through at least one conduit of a conduit-in-conduit heater located in the formation to heat hydrocarbons in the formation to at least a mobilization temperature of the hydrocarbons. At least some of the hydroc ...