ZeeWeed 700B

US-based GE has unveiled a new water treatment technology called ZeeWeed 700B for the offshore oil and gas industry.

The new horizontal-designed, inside-out ultrafiltration (UF) membrane ZeeWeed 700B offers seawater pretreatment for injection and solids removal in oil and gas applications.

The blended polyethersulphone (PES) membrane uses SevenBore fibre technology, produces better water quality and is virtually unaffected by variable raw water quality.

ZeeWeed provides an improved pretreatment technology, decreased lifecycle costs and reducec weight, as well as extending the life of a sulfate removal unit.

The new membrane does not need air scouring, and uses multibore fibres and reduces maintenance and repairs and eliminates the need for blowers.

GE Power engineered systems water and process technologies global leader Kevin Cassidy said: "The offshore oil and gas industry has strict requirements for materials of construction, space and weight, and GE’s ultrafiltration skids equipped with the new ZeeWeed 700B UF membrane meet these demanding specifications.

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"On offshore facilities, there is limited opportunity for downtime."

"On offshore facilities, there is limited opportunity for downtime. Using SevenBore multibore technology minimises the need for maintenance and repair, making GE’s ZeeWeed 700B ideal for offshore water treatment."

The advanced filtration technology separates particles, bacteria and viruses from water or wastewater and is used by nearly 1,000 plants globally.

The technology can handle large volumes of water in a small footprint and is suitable for treating sources such as seawater, GE said.

In May 2015, GE introduced a seawater sulfate removal nanofiltration membrane for the upstream oil and gas market.

The membrane removes sulphate from injection water in offshore oil production and reduces scale and corrosion in the injection well.

Image: GE ZeeWeed 700B: Robust SevenBore fibres remove particles that are 0.02µm or greater in size in an inside-out flow configuration. Photo: courtesy of General Electric.