Wells – Processes – With indicating – testing – measuring or locating
Patent
1986-03-10
1987-05-26
Suchfield, George A.
Wells
Processes
With indicating, testing, measuring or locating
166 57, 166 64, 166263, 166302, 166303, E21B 3600, E21B 4324, E21B 4706
Patent
active
046677399
ABSTRACT:
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 bottom of the tar sand and maintaining injection and production flow rates that keep the steam temperature above about 450.degree. F. at a pressure high enough to keep the produced liquid substantially free of steam and near to, but less than high enough to damage the reservoir.
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Glandt Carlos A.
Van Meurs Peter
Shell Oil Company
Suchfield George A.
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