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US 2009/0057223 A1Published application
Apparatus and method for treating injection fluid
AssigneeVWS Westgarth Limited
InventorsCrawford Young, Arno Theron, Brian Baillie
Life of this patent
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AssigneeVWS Westgarth Limited
InventorsCrawford Young, Arno Theron, Brian Baillie
Estimating the term…
An apparatus for treating a fluid to be injected into a subterranean hydrocarbon-bearing formation includes a filtration unit having one or more filtration membranes including either or both ultra-filtration membranes and microfiltration membranes, and an ionic species removal plant, wherein fluid to be injected is first treated by the filtration unit and then treated by the ionic species removal plant. In a preferred embodiment, the ionic species removal plant is a sulfate removal plant which incorporates nano-filtration membranes. A method of treating fluid to be injected into a subterranean formation is also disclosed. A cleaning system and method for use in an apparatus for treating injection fluid is also disclosed.
A method of treating fluid to be injected into a subterranean hydrocarbon-bearing formation, said method comprising the steps of:
A method of cleaning a fluid treatment apparatus incorporating a plurality of filtration units each comprising at least one filtration membrane including at least one of an ultra-filtration membrane and a micro-filtration membrane, and an ionic species removal plant coupled to and located downstream of the filtration unit, said method comprising the steps of:
Dependencies are inferred from the claim text.