Jornal de Efeitos e Controle da Poluição
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Optimal Options for Treatment of Produced Water in Offshore Petroleum Platforms

Chibunna Onyems Igwe, Abdulrahman AL Saadi and Stanley E Ngene

During Petroleum exploration, water, which is trapped in underground formations, is brought to the surface along with oil or gas. This water, referred to as Produced water, has constituents that make it unsafe to be discharged into the environment without adequate treatment. In offshore locations, the situation is even more difficult since there is always limited space for produced water treatment. The treatment of Produced water will not only provide water for use but will protect our environment against pollution. This paper has reviewed exhaustively the various ways of handling produced water on the basis of its constituents, expected use of the effluent fluid, adherence to the local regulations on environmental protection, available expertise, and cost of its treatment. Furthermore, the paper has selected some key produced water treatment techniques, discussed their advantages as well as limitations to enable oil and gas operators to make informed decision depending on the circumstances surrounding their operations.