Title | Date | Subject | Description | ||
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1 | Thermal drainage process for recovering hot water-swollen oil from a thick tar sand | 1987-05-26 | thermal drainage process; hot water-swollen oil recovery; thick tar sand; oil recovery | Hot liquid-containing water-swollen tar is produced from a tar sand by injecting steam into a well, which is at least initially open and substantially free of obstruction to vertical fluid flow throughout a long vertical interval from the bottom of the tar sand, by producing said liquid from the bot... |