Patents by Inventor George Leo Stegemeier
George Leo Stegemeier has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8789586Abstract: An oil shale formation may be treated using an in situ thermal process. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat input into the formation may be controlled to raise the temperature of portion at a selected rate during pyrolysis of hydrocarbons within the formation. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation.Type: GrantFiled: July 12, 2013Date of Patent: July 29, 2014Assignee: Shell Oil CompanyInventors: Eric Pierre de Rouffignac, Ilya Emil Berchenko, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr., George Leo Stegemeier, Harold J. Vinegar, Scott Lee Wellington, Etuan Zhang
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Publication number: 20140027119Abstract: An oil shale formation may be treated using an in situ thermal process. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat input into the formation may be controlled to raise the temperature of portion at a selected rate during pyrolysis of hydrocarbons within the formation. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation.Type: ApplicationFiled: July 12, 2013Publication date: January 30, 2014Inventors: Eric Pierre de Rouffignac, llya Emil Berchenko, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, JR., George Leo Stegemeier, Harold J. Vinegar, Scott Lee Wellington, Etuan Zhang
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Patent number: 8485252Abstract: An oil shale formation may be treated using an in situ thermal process. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat input into the formation may be controlled to raise the temperature of portion at a selected rate during pyrolysis of hydrocarbons within the formation. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation.Type: GrantFiled: July 11, 2012Date of Patent: July 16, 2013Assignee: Shell Oil CompanyInventors: Eric Pierre de Rouffignac, Ilya Emil Berchenko, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr., George Leo Stegemeier, Harold J. Vinegar, Scott Lee Wellington, Etuan Zhang
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Publication number: 20130008660Abstract: An oil shale formation may be treated using an in situ thermal process. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat input into the formation may be controlled to raise the temperature of portion at a selected rate during pyrolysis of hydrocarbons within the formation. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation.Type: ApplicationFiled: July 11, 2012Publication date: January 10, 2013Inventors: Eric Pierre de Rouffignac, Ilya Emil Berchenko, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, JR., George Leo Stegemeier, Harold J. Vinegar, Scott Lee Wellington, Etuan Zhang
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Patent number: 8225866Abstract: An oil shale formation may be treated using an in situ thermal process. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat input into the formation may be controlled to raise the temperature of portion at a selected rate during pyrolysis of hydrocarbons within the formation. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation.Type: GrantFiled: July 21, 2010Date of Patent: July 24, 2012Assignee: Shell Oil CompanyInventors: Eric Pierre de Rouffignac, Ilya Emil Berchenko, Thomas David Fowler, Robert Charles Ryan, Gordon Thomas Shahin, Jr., George Leo Stegemeier, Harold J. Vinegar, Scott Lee Wellington, Etuan Zhang
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Patent number: 8191630Abstract: Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters located in the portion. The heat may be controlled to increase the permeability of at least part of the portion to create an injection zone in the portion with an average permeability sufficient to allow injection of a fluid through the injection zone. A drive fluid and/or an oxidizing fluid may be provided into the injection zone. At least some hydrocarbons including mobilized hydrocarbons are produced from the portion.Type: GrantFiled: April 28, 2010Date of Patent: June 5, 2012Assignee: Shell Oil CompanyInventors: George Leo Stegemeier, Gary Lee Beer, Etuan Zhang
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Publication number: 20110088904Abstract: An oil shale formation may be treated using an in situ thermal process. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat input into the formation may be controlled to raise the temperature of portion at a selected rate during pyrolysis of hydrocarbons within the formation. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation.Type: ApplicationFiled: July 21, 2010Publication date: April 21, 2011Inventors: Eric Pierre de Rouffignac, Ilya Emil Berchenko, Thomas David Fowler, Gordon Thomas Shahin, JR., Robert Charles Ryan, George Leo Stegemeier, Harold J. Vinegar, Scott Lee Wellington, Etuan Zhang
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Patent number: 7860377Abstract: A system for heating a subsurface formation is described. The system includes a first elongated heater in a first opening in the formation. The first elongated heater includes an exposed metal section in a portion of the first opening. The portion is below a layer of the formation to be heated. The exposed metal section is exposed to the formation. A second elongated heater is in a second opening in the formation. The second opening connects to the first opening at or near the portion of the first opening below the layer to be heated. At least a portion of an exposed metal section of the second elongated heater is electrically coupled to at least a portion of the exposed metal section of the first elongated heater in the portion of the first opening below the layer to be heated.Type: GrantFiled: April 21, 2006Date of Patent: December 28, 2010Assignee: Shell Oil CompanyInventors: Harold J. Vinegar, Ronald Marshall Bass, Dong Sub Kim, Stanley Leroy Mason, George Leo Stegemeier, Thomas Joseph Keltner, Frederick Gordon Carl, Jr.
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Publication number: 20100276141Abstract: Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters located in the portion. The heat may be controlled to increase the permeability of at least part of the portion to create an injection zone in the portion with an average permeability sufficient to allow injection of a fluid through the injection zone. A drive fluid and/or an oxidizing fluid may be provided into the injection zone. At least some hydrocarbons including mobilized hydrocarbons are produced from the portion.Type: ApplicationFiled: April 28, 2010Publication date: November 4, 2010Inventors: George Leo Stegemeier, Gary Lee Beer, Etuan Zhang
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Patent number: 7798221Abstract: An oil shale formation may be treated using an in situ thermal process. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat input into the formation may be controlled to raise the temperature of portion at a selected rate during pyrolysis of hydrocarbons within the formation. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. The mixture may be separated into condensable hydrocarbons and non-condensable hydrocarbons. The condensable hydrocarbons removed from the formation may be a high quality oil that has a relatively low olefin content and a relatively high API gravity.Type: GrantFiled: May 31, 2007Date of Patent: September 21, 2010Assignee: Shell Oil CompanyInventors: Harold J. Vinegar, Scott Lee Wellington, Eric Pierre de Rouffignac, John Michael Karanikas, Ilya Emil Berchenko, George Leo Stegemeier, Kevin Albert Maher, Etuan Zhang, Gordon Thomas Shahin, James Louis Menotti, John Matthew Coles, Thomas David Fowler, Charles Robert Keedy, Ajay Madhav Madgavkar, Robert Martijn Van Hardeveld, Robert Charles Ryan, Lanny Gene Schoeling, Frederick Gordon Carl
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Patent number: 7730947Abstract: Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters located in the portion. The heat may be controlled to increase the permeability of at least part of the portion to create an injection zone in the portion with an average permeability sufficient to allow injection of a fluid through the injection zone. A drive fluid and/or an oxidizing fluid may be provided into the injection zone. At least some hydrocarbons are produced from the portion.Type: GrantFiled: October 19, 2007Date of Patent: June 8, 2010Assignee: Shell Oil CompanyInventors: George Leo Stegemeier, Gary Lee Beer, Etuan Zhang
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Patent number: 7717171Abstract: A method for treating a tar sands formation is disclosed. The method includes heating a first portion of a hydrocarbon layer in the formation from one or more heaters located in the first portion. The heat is controlled to increase a fluid injectivity of the first portion. A drive fluid and/or an oxidizing fluid is injected and/or created in the first portion to cause at least some hydrocarbons to move from a second portion of the hydrocarbon layer to a third portion of the hydrocarbon layer. The second portion is between the first portion and the third portion. The first, second, and third portions are horizontally displaced from each other. The third portion is heated from one or more heaters located in the third portion. Hydrocarbons are produced from the third portion of the formation. The hydrocarbons include at least some hydrocarbons from the second portion of the formation.Type: GrantFiled: October 19, 2007Date of Patent: May 18, 2010Assignee: Shell Oil CompanyInventors: George Leo Stegemeier, Ramesh Raju Mudunuri, Harold J. Vinegar, John Michael Karanikas, Namit Jaiswal, Weijian Mo
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Patent number: 7644765Abstract: Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. A pressure in the majority of the section may be maintained below a fracture pressure of the formation. The pressure in the majority of the section may be reduced to a selected pressure after the average temperature reaches a temperature that is above 240° C. and is at or below pyrolysis temperatures of hydrocarbons in the section. At least some hydrocarbon fluids may be produced from the formation.Type: GrantFiled: October 19, 2007Date of Patent: January 12, 2010Assignee: Shell Oil CompanyInventors: George Leo Stegemeier, Gary Lee Beer, Etuan Zhang
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Patent number: 7549470Abstract: A method for treating an oil shale formation comprising nahcolite includes providing a first fluid to a portion of the formation. A second fluid is produced from the portion. The second fluid includes at least some nahcolite dissolved in the first fluid. A controlled amount of oxidant is provided to the portion of the formation. Hydrocarbon fluids are produced from the formation.Type: GrantFiled: October 20, 2006Date of Patent: June 23, 2009Assignee: Shell Oil CompanyInventors: Harold J. Vinegar, George Leo Stegemeier
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Publication number: 20090101346Abstract: An oil shale formation may be treated using an in situ thermal process. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat input into the formation may be controlled to raise the temperature of portion at a selected rate during pyrolysis of hydrocarbons within the formation. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. The mixture may be separated into condensable hydrocarbons and non-condensable hydrocarbons. The condensable hydrocarbons removed from the formation may be a high quality oil that has a relatively low olefin content and a relatively high API gravity.Type: ApplicationFiled: May 31, 2007Publication date: April 23, 2009Inventors: Harold J. Vinegar, Scott Lee Wellington, Eric Pierre de Rouffignac, John Michael Karanikas, IIya Emil Berchenko, George Leo Stegemeier, Kevin Albert Maher, Etuan Zhang, Gordon Thomas Shahin, James Louis Menotti, John Matthew Coles, Thomas David Fowler, Charles Robert Keedy, Ajay Madhav Madgavkar, Robert Martijn Van Hardeveld, Robert Charles Ryan, Lanny Gene Schoeling, Frederick Gordon Carl
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Publication number: 20090014180Abstract: A method for treating a tar sands formation is disclosed. The method includes heating a first portion of a hydrocarbon layer in the formation from one or more heaters located in the first portion. The heat is controlled to increase a fluid injectivity of the first portion. A drive fluid and/or an oxidizing fluid is injected and/or created in the first portion to cause at least some hydrocarbons to move from a second portion of the hydrocarbon layer to a third portion of the hydrocarbon layer. The second portion is between the first portion and the third portion. The first, second, and third portions are horizontally displaced from each other. The third portion is heated from one or more heaters located in the third portion. Hydrocarbons are produced from the third portion of the formation. The hydrocarbons include at least some hydrocarbons from the second portion of the formation.Type: ApplicationFiled: October 19, 2007Publication date: January 15, 2009Inventors: George Leo Stegemeier, Ramesh Raju Mudunuri, Harold J. Vinegar, John Michael Karanikas, Namit Jaiswal, Weijan Mo
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Publication number: 20080277113Abstract: Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. A pressure in the majority of the section may be maintained below a fracture pressure of the formation. The pressure in the majority of the section may be reduced to a selected pressure after the average temperature reaches a temperature that is above 240° C. and is at or below pyrolysis temperatures of hydrocarbons in the section. At least some hydrocarbon fluids may be produced from the formation.Type: ApplicationFiled: October 19, 2007Publication date: November 13, 2008Inventors: George Leo Stegemeier, Gary Lee Beer, Etuan Zhang
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Publication number: 20080217016Abstract: Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters located in the portion. The heat may be controlled to increase the permeability of at least part of the portion to create an injection zone in the portion with an average permeability sufficient to allow injection of a fluid through the injection zone. A drive fluid and/or an oxidizing fluid may be provided into the injection zone. At least some hydrocarbons are produced from the portion.Type: ApplicationFiled: October 19, 2007Publication date: September 11, 2008Inventors: George Leo Stegemeier, Gary Lee Beer, Etuan Zhang
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Patent number: 7322410Abstract: An apparatus and method for operating an electrically powered device in a packer using the piping structure of the well as an electrical conductor for providing power and/or communications. The electrically powered device may comprise an electrically controllable valve, a communications and control module, a modem, a sensor, and/or a tracer injection module.Type: GrantFiled: March 2, 2001Date of Patent: January 29, 2008Assignee: Shell Oil CompanyInventors: Harold J. Vinegar, Robert Rex Burnett, William Mountjoy Savage, Frederick Gordon Carl, Jr., John Michele Hirsch, George Leo Stegemeier, Ronald Marshall Bass
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Patent number: 7259688Abstract: A reservoir production control system includes a plurality of wells for producing a reservoir linked to a central computer over a downhole communication network and a surface communication network. Both the downhole and the surface communication networks are wireless communications paths for transmitting downhole data and surface data to the central computer. Both networks include a series of interconnected tubing or pipe that allows transmission of data over electrically isolated portions of the pipe and tubing. After integrating and analyzing all relevant data and comparing the data with a reservoir model, the central computer initiates changes in a plurality of downhole control devices associated with the wells, thereby optimizing the production of the reservoir.Type: GrantFiled: March 2, 2001Date of Patent: August 21, 2007Assignee: Shell Oil CompanyInventors: John Michele Hirsch, George Leo Stegemeier, Harold J. Vinegar, Robert Rex Burnett, Frederick Gordon Carl, Jr., William Mountjoy Savage, James William Hall