We received various contracts for the development of the marine facilities for an LNG-export terminal at Shell’s giant Sakhalin LNG project in Eastern Siberia.

The first assignment was for a study to optimize the mooring layout for LNG export facility handling LNG carriers of 125,000 – 145,000m3, comprising four breasting and 5 mooring dolphins. Mooring simulation runs have been carried out to investigate vessel motions and forces in mooring wires and fenders. Manifold envelopes for marine loading arms have been determined. Special attention has been paid to effects of long wave phenomena. The Study was subsequently reviewd in order to accommodate smaller vessels ranging 18,800 – 30,000m3 in addition to the larger fleet. Additional breasting and mooring dolphins were recommended and the required manifold envelopes have been defined. The second contract was for the design concepts for jetty head and trestle with special consideration to ice conditions and subsequent ice loads at structures. This has resulted in gravity based concrete caisson solutions and relatively long steel spans. We are still heavily involved in the environmental impact assessment studies with employees working locally in Sakhalin.

Martijn Coopman
T +31 (0)10 2865 693
E Martijn Coopman