Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Reexamination Certificate
2007-02-15
2010-06-08
Fortuna, Ana M (Department: 1797)
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
C210S703000, C210S748080, C210S257200, C210S175000, C210S180000, C204S157150, C204S660000, C205S742000, C202S082000, C203S010000, C203S012000
Reexamination Certificate
active
07731854
ABSTRACT:
An in situ system used for treating an oil and gas well drilling fluid and treating water after a well is completed. The system includes a fluid treatment unit used in a reserve pit and a water treatment unit disposed next to the pit. The fluid treatment unit includes a floating electrocoagulation unit in the reserve pit for destabilizing contaminates in the fluid and dropping out stable precipitates. The clear treated fluid is then pumped, using a submersible pump, to the water treatment unit. The water treatment includes a number of components including a pre-filter, an activated carbon filter and a heat exchanger for first treating the fluid. The filtered and heated fluid is then piped into a reverse osmosis unit for removing salt and any remaining minerals found therein. From the reverse osmosis unit, approximately 70 to 80% of the filtered water is cleaned and piped to a clean water storage tank for reuse. Reject water from the reverse osmosis unit is transferred to a water pre-heater and a primary and secondary distillation unit for converting the heated water to steam. The steam is now piped to a condenser where the steam is cooled to distilled, clean water. The remaining clean water from the condenser is now transferred to the clean water storage tank.
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Crabtree Edwin H.
Fortuna Ana M
H2O Tech, Inc.
Pizarro Ramon L.
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