Water-wetting treatment for reducing water coning in an oil reservoir
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United States of America Patent
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Oct 29, 1991
Grant Date -
N/A
app pub date -
Jun 15, 1990
filing date -
Jun 15, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An oil well producing water is treated to reduce the water cut by injecting through the well into the reservoir a composite slug comprising: a relatively small volume of water-wetting agent in liquid form, said agent being adapted to modify the reservoir matrix to increase its water-wetted character; and a relatively large volume of non-condensable gas for further laterally extending the matrix surface modification.
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