In situ chemical stimulation of diatomite formations
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United States of America Patent
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May 9, 1989
Grant Date -
N/A
app pub date -
Oct 13, 1987
filing date -
Oct 13, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved method of recovering oil from diatomite is described. A solvent is injected into the diatomite followed by an aqueous surface active solution. The aqueous surface active solution contains a diatomite/oil water wettability improving agent and an oil/water surface tension lowering agent. The method may be supplemented by injection of water and/or steam into the diatomite.
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