Generally, the production of crude oil and natural gas brings to the surface fossil
water, termed “produced water.” By far the largest by-product or waste stream by
volume associated with oil and gas extraction, this water is always cleaned to some
extent and the level of cleaning is determined by the intended use and/or current
discharge regulations. Existing technologies are not usually capable of reaching the
new levels of cleanliness demanded. This investigation focuses on the
characterization of permeate flux using newly developed ceramic microfiltration (MF),
ultrafiltration (UF) and nanofiltration (NF) membranes for efficient treatment of oilfield
produced water. Results for average flux rates and flux degradation are shown.