Hatenboer-Water BV has recently secured contracts from Daewoo Shipbuilding & Marine Engineering (DSME) for the supply of Demitec® watermakers for four new drillships.
In Okpo Bay in Korea, Guy Heijnen, Manager, Sales & Water Quality at Hatenboer-Water, signed contracts for the projects H3612, 13, 14 and 15. These relate to drillships for Vantage Energy, Atwood Oceanics and two for Aker Solutions. The drillships are the newest generation of ultra deep drilling ships, which can drill to a water depth of 12,000 ft (3 km). The ships are currently under construction, and the delivery of the watermakers is planned for this year.
The watermakers work on the principle of reverse osmosis (RO) and have a capacity of 50 m3 per day. Drilling at great depths demands an extremely high quality of product water. The installations can supply water with a purity of only 10 ppm TDS. To obtain such a standard, the installation is in a two-stage configuration, with two RO installations in-line. The first unit desalinates to 500 ppm TDS and the second delivers product water with a salt content no higher than 10 ppm TDS.
DEMITEC® is the trade name van Hatenboer-Water RO type watermakers. These are heavy duty installations specially designed for 24/7 operation in maritime and offshore applications. Worldwide there are more that 200 DEMITEC® RO systems in operation.
[mappress] World Maritime News Staff, January 30, 2012; Image: DSME