Pulsing remediation method
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United States of America Patent
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Aug 29, 1995
Grant Date -
N/A
app pub date -
Jan 27, 1994
filing date -
Jan 27, 1994
priority date (Note) -
Expired
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Abstract
A process for cyclically operating injection and withdrawal wells penetrating contaminated zones. A high flowrate portion of the cycle time preferably does not exceed a transient response period for in-situ formation fluids to achieve a quasi-steady state conditions. A low flowrate portion of the cycle time limits fluid flowrate which allows in-situ formation fluids to at least partially return to the zone affected by the high flowrate portion of the cycle. The cyclic operation produces improved remediation when compared to continuous operation of wells at similar operating conditions.
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