Statoil is carrying out tests on the Heidrun platform's A-43 well in the Norwegian Sea to determine if it is possible to reinject produced water underground.
Production wells on the field need pressure support, and produced water is an alternative to seawater for injection purposes.
Statoil said if the test is successful it might invest in permanent facilities to enable the injection of all water produced on the field.
Statoil said 2,500 cubic meters of water per day are being injected, which is equivalent to 40 percent of the water produced on Heidrun.
The operator said the reinjection program has major environmental advantages since no harmful discharge of produced water would be made into the sea.
© 2001 Mena Report (www.menareport.com)