Archaeological research

Ormen Lange pipeline

Sperre AS has surveyed the seabed along the planned pipeline route in order to identify any archaeological impacts of the project. One important find was made: a shipwreck dating from around 1745. Sperre AS was also contracted to provide ROV equipment and operators to excavate the find.

The first ground has long since been broken for the giant Ormen Lange project. Since autumn 2007, gas from this field has been boiling the water for 10 million cups of tea in the UK every morning. Ormen Lange will be capable of supplying 20% of the UK's gas consumption for up to 40 years.

Sperre AS has carried out large-scale archaeological excavations in connection with the project. This is the first time that excavations have been carried out at such great depths using this method.

The process plant for the Ormen Lange field will be at Nyhamna in the municipality of Aukra in the County of Møre og Romsdal. The field itself lies 120 km offshore. The field is in a subsea depression left by the Storegga avalanche 8000 years ago. The wells lie under 1000 m of water.


Sperre AS manufactured the equipment needed for the comprehensive programme of excavations and salvage to be carried out. The excavations were led by NTNU's Museum of Natural History and Archaeology.