Norway's Shearwater GeoServices has clinched two new 3D survey jobs in the Mediterranean and South East Asia.

The joint venture between GC Rieber Shipping and Rasmussengruppen said the contracts will add seven vessel-months to its backlog.

The surveys will start in the fourth quarter of 2018.

The Mediterranean work, covering 1,300 sq km, will take two months and the Asian job five, over more than 8,000 sq km in two areas.