Method to obtain rapid build-up of pressure in a steam foam process
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United States of America Patent
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-
Aug 1, 1989
Grant Date -
N/A
app pub date -
Jul 6, 1988
filing date -
Jul 6, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improvement to a steam foam enhanced oil recovery process, whereby the time between injection of a surfactant and the resulting increase in steam injection pressure is reduced by initially injecting a rapidly-foaming surfactant, such as an internal olefin sulfonate, a vinylidene olefin sulfonate, or secondary alkane sulfonate, and subsequently injecting a typical steam foam surfactant that forms foam less rapidly.
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