Deaeration of Seawater

Secondary recovery by means of water injection is an essential feature of crude oil production, and is often a crucial factor in achieving and sustaining economically viable production rates. The water used must be deaerated to remove oxygen, which would have an adverse effect on sulphate removal systems. Vacuum deaeration is the most commonly employed method in the oil and gas industry today: packed towers are continuously evacuated by a vacuum system, extracting oxygen and other gases. Typically, two stages of mass transfer packing are used.

Dolphin liquid ring vacuum pump systems are ideally suited to this application, as their robust construction permits operation in hostile environments such as offshore drilling rigs.

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