1
Winston R Shu, Kathy J Hartman: Thermal recovery method for viscous oil. Mobil Oil Corporation, A J McKillop, Michael G Gilman, George W Hager Jr, July 8, 1986: US04598770 (279 worldwide citation)

A thermal oil recovery process in which steam is injected into a heavy oil-bearing formation through a horizontally-drilled injection well and oil is produced through a horizontal production well parallel to the injection well.


2
Hartman Kathy J, Shu Winston R: Extraction thermique du petrole lourd, Thermal recovery method for viscous oil. Mobil Oil Corporation, GOWLING LAFLEUR HENDERSON, June 28, 1988: CA1238572

F-3113 ABSTRACTA thermal oil recovery process in which steam is injectedinto a heavy oil-bearing formation through a horizontally-drilledinjection well and oil is produced through a horizontal productionwell parallel to the injection well.