Control of flow and production of water and oil or bitumen from porous underground formations
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United States of America Patent
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Sep 27, 1994
Grant Date -
N/A
app pub date -
Feb 26, 1992
filing date -
Feb 26, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
It has been discovered that the production or recovery of oil or bitumen produced or recovered in the form of an oil-in-water emulsion form a porous water containing oil or bitumen producing formation is maintained and improved by maintaining the temperature of the produced oil or bitumen in the form of an oil-in-water emulsion at a temperature not lower than and preferably greater than Tc, wherein Tc is the minimum temperature for the oil or bitumen, such as in the form of an oil-in-water emulsion, to flow through the porous water-containing oil or bitumen producing formation. In a special practice of this invention to prevent water coning, a substantially water impermeable barrier can be produced in a water saturated formation by depositing therein a bitumen or oil-in-water emulsion barrier or zone at a temperature below Tc.
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