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Laboratory study of a combination of forward combustion and waterflooding-the COFCAW process

Conference · · Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:5564095
A combination of forward combustion and waterflooding (COFCAW) can result in a markedly improved oil recovery method. Combustion maintains a zone of elevated temperature. Some of the injected water serves to fill up the burned-out region. The remainder of the water picks up heat that is otherwise wasted during conventional forward combustion, is converted to steam, and transports the heat ahead. The steam plateau, a zone of nearly constant temperature due to the condensation of steam, is much larger than that which occurs during forward combustion. This causes the oil to be displaced more efficiently and results in reduced fuel consumption and reduced air requirements. Eleven laboratory COFCAW experiments are reported. The COFCAW process holds promise as an economic tertiary recovery method for selected reservoirs. (11 refs.)
Research Organization:
Pan American Petr Corp.
OSTI ID:
5564095
Report Number(s):
CONF-680926-
Conference Information:
Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE2209
Country of Publication:
United States
Language:
English