SEAWATER TREATMENT TO OBTAIN HIGH SALINITY WATER WITH LOW HARDNESS FOR ENHANCED OIL RECOVERY

SEAWATER TREATMENT TO OBTAIN HIGH SALINITY WATER WITH LOW HARDNESS FOR ENHANCED OIL RECOVERY

A high salinity feed water such as seawater is treated to produce a reverse osmosis (RO) concentrate and an RO permeate. Optionally, some or all of the RO concentrate may be filtered to produce a nanofiltration (NF) permeate. Optionally, some feed water can also be filtered to produce NF permeate wi...

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Hauptverfasser: Kapa, Ravi Chandra Reddy, Elyanow, Irving, Doupe, Michael, Antonopoulos, Nick, Kanagasabai, Tamizh Aruvi
Format: Patent
Sprache:eng
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CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator Kapa, Ravi Chandra Reddy
Elyanow, Irving
Doupe, Michael
Antonopoulos, Nick
Kanagasabai, Tamizh Aruvi
description A high salinity feed water such as seawater is treated to produce a reverse osmosis (RO) concentrate and an RO permeate. Optionally, some or all of the RO concentrate may be filtered to produce a nanofiltration (NF) permeate. Optionally, some feed water can also be filtered to produce NF permeate without first being concentrated by RO treatment. The NF permeate, or a blend of the RO permeate and NF permeate, may be used to produce a product water for injection into an oil-bearing reservoir to enhance oil recovery. Optionally, the product water may have salinity greater than the feedwater, or at least 30 g/L. The product water may have hardness of less than 20 mg/L.
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subjects CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title SEAWATER TREATMENT TO OBTAIN HIGH SALINITY WATER WITH LOW HARDNESS FOR ENHANCED OIL RECOVERY
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