Advanced sandwash system helps operators meet oil in sand environmental regulations

In response to current and future legislation tightening the requirement to control overboard discharges, RBG developed its advancedsandwash system to provide a cost effective, environmentally sound route to dispose of produced solids.

The units were introduced following a 12-month development period and incorporate a mix of field proven equipment and techniques, and a novel approach to the chemistry and fluid dynamics of three phase separation to allow the clean-up of solids prior to overboard discharge.

The technology has now been used offshore successfully for the past two years and the sand discharge results achieved are often below 1% oil content, which is well within 6% limit governed by the prevention of Oil Pollution Act (POPA) 1971.

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