In the production phase, three barrels of produced water are generated for every corresponding barrel of oil produced per day [6]. This ratio increases as oil wells mature and may reach 7–10 barrels, especially in mature oilfields [7].
Inthe production phase, three barrels of produced water are generatedfor every corresponding barrel of oil produced per day [6]. This ratioincreases as oil wells mature and may reach 7–10 barrels, especiallyin mature oilfields [7].