Method of separating a mixture, and a plant for separating a mixture comprising water, oil and gas
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United States of America Patent
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Apr 23, 2013
Grant Date -
Jan 14, 2010
app pub date -
Nov 3, 2006
filing date -
Nov 3, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of separating includes mixing a fluid into a mixture that has been separated from an oil well stream and that includes water, oil, and gas. The mixture including the fluid is fed into a separator and allowed to separate into a water phase and an oil/fluid phase. The cleaned water phase is removed from the separator via an outlet for water. The oil/fluid phase is subjected to a separation step separating the oil/fluid into an oil phase and a gaseous phase, from which gaseous phase the fluid is recovered by a condensation step and recycled for injection into the mixture. The separator is a liquid-liquid/gas separator in which the pressure is in the range of 0.5 bar to 25 bar, while the mixture including the fluid is separated into the water phase and an oil/gas phase.
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