1
David Booth Burns, Horng Jye, Jochen Marwede, Duncan Charles MacDonald, Robert George Prince Wright: Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations. Shell Oil Company, May 15, 2012: US08177305 (56 worldwide citation)

A system for treating a subsurface hydrocarbon containing formation includes one or more shafts. At least two substantially horizontal or inclined tunnels extend from one or more of the shafts. A plurality of heat sources are located in at least one heat source wellbore extending between at least tw ...


2
Duncan Charles MacDonald: Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations. Shell Oil Company, April 10, 2012: US08151907 (55 worldwide citation)

A method for forming a subsurface wellbore is disclosed. The method includes operating a drilling string in a first direction of rotation. A first motor located near the end of the drilling string is operated in a direction of rotation opposite that of the drilling string. A drill bit is rotated usi ...


3
David Booth Burns, Horng Jye, Jochen Marwede, Duncan Charles MacDonald, Robert George Prince Wright: Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations. Shell Oil Company, May 8, 2012: US08172335 (47 worldwide citation)

A system for treating a subsurface hydrocarbon containing formation includes one or more shafts. A first substantially horizontal or inclined tunnel extends from one or more of the shafts. A second substantially horizontal or inclined tunnel extends from one or more of the shafts. Two or more heat s ...


4
David Booth Burns, Horng Jye, Jochen Marwede, Duncan Charles MacDonald, Robert George Prince Wright: Using tunnels for treating subsurface hydrocarbon containing formations. Shell Oil Company, April 24, 2012: US08162405 (47 worldwide citation)

A system for treating a subsurface hydrocarbon containing formation includes one or more tunnels having an average diameter of at least 1 m. At least one tunnel is connected to the surface. Two or more wellbores extend from at least one of the tunnels into at least a portion of the subsurface hydroc ...


5
Ian Alexander Davidson, Cameron James Geddes, Randall Lynn Rudolf, Bruce Allen Selby, Duncan Charles MacDonald: Wellbore manufacturing processes for in situ heat treatment processes. Shell Oil Company, December 11, 2012: US08327681 (24 worldwide citation)

A method includes making coiled tubing at a coiled tubing manufacturing unit coupled to a coiled tubing transportation system. One or more coiled tubing reels are transported from the coiled tubing manufacturing unit to one or more moveable well drilling systems using the coiled tubing transportatio ...


6
Robert George Prince Wright, Jochen Marwede, Horng Jye, Duncan Charles MacDonald, David Booth Burns: Mines and tunnels for use in treating subsurface hydrocarbon containing formations. Shell Oil Company, January 28, 2014: US08636323 (21 worldwide citation)

A system for treating a subsurface hydrocarbon containing formation includes one or more substantially horizontal or inclined tunnels extending from at least one shaft. One or more heater sources are located in one or more heater wellbores coupled to at least one of the substantially horizontal or i ...


7
David Booth Burns, Horng Jye, Jochen Marwede, Duncan Charles MacDonald, Robert George Prince Wright: Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations. Shell Oil Company, October 22, 2013: US08562078 (21 worldwide citation)

A system for treating a subsurface hydrocarbon containing formation includes one or more substantially horizontal or inclined tunnels extending from one or more shafts. A production system is located in at least one of the tunnels. The production system is configured to produce fluids from the forma ...


8
David Alston Edbury, Jose Victor Guerrero, Duncan Charles MacDonald, James Bryon Rogers, Donald Ray Sitton: Methods and systems for drilling. Shell Oil Company, October 22, 2013: US08561720 (3 worldwide citation)

A method of steering a drill bit to form an opening in a subsurface formation, comprises a) determining a distance from design of a well, and b) determining an angle offset from design of the well wherein angle offset from design is the difference between the inclination and azimuth of the hole and ...


9
David Alston Edbury, Duncan Charles MacDonald: Systems and methods of forming subsurface wellbores. Shell Oil Company, September 8, 2015: US09129728 (2 worldwide citation)

A system for forming a subsurface wellbore includes a rack and pinion system including a chuck drive system. The chuck drive system operates a drilling string. An automatic position control system includes at least one measurement sensor coupled to the rack and pinion system. The automatic position ...


10
Ernesto Rafael Fonseca Ocampos, John Michael Karanikas, Duncan Charles MacDonald, Ernest E Carter Jr: Methods for heating with slots in hydrocarbon formations. Shell Oil Company, June 3, 2014: US08739874 (1 worldwide citation)

Systems and methods for treating a subsurface formation are described herein. Some embodiments generally relate to systems, methods, and/or processes for treating fluid produced from the subsurface formation. Some methods include providing heat to a first section of the hydrocarbon containing format ...