Hallin Marine awarded subsea construction project off JavaProjects and Operations // July 23, 2013
Hallin Marine has been awarded a contract for a project off the northwest coast of Java. It centres on the installation of new control taps and a bypass for the main pipeline which supplies 60 per cent of Jakarta's gas requirements to the mainland.
Hallin will be providing full saturation-diving services using equipment built into the Ullswater subsea vessel. Ullswater will be equipped with a remotely operated submersible vehicle which will be used for underwater observation and process monitoring.
Also on site from the Hallin fleet will be another vessel, Carlisle, which was recently mobilised for duty as a diving support vessel. Carlisle has a Hallin-designed-and-built modular SAT system permanently mounted on deck. This is augmented by dynamic positioning class 2, 126 man accommodation and a four-point-mooring system.
Hallin teams based on the two vessels will be performing removal of concrete coating on existing pipelines, pipeline integrity checks, spools installation, pre-commissioning assistance, installation of hot-taps at multiple locations and the fitting of underwater pipe-closure stopples.