Construction and installation of offshore facilities – The study on inshore module lifting onto a floating concrete offshore structure conducted in 1986 pioneered the use of risk analysis for improving and optimising complex engineering operations. This was followed by risk analysis of the construction to installation phases of the Sleipner A2 platform and flare structures. It was closely monitored by the Norwegian Petroleum Directory, since it was the first study of its kind. Other work includes the Troll gas, Hibernia, Visund, Kristin, Huldra and Snorre A facilities.

Marine operations for transport and indocking of LNG plant - Quantitative risk analysis of marine operations related to float-on, transportation, float-off and indocking of the Snøhvit LNG plant constructed on a barge has recently been completed.  The indocking operation is shown in the picture on the left.

The dock for the Snøhvit LNG barge is shown on the right.

Deep sea pipe laying - Studies of deep sea pipe laying in the Gulf of Mexico using J-lay and S-lay techniques were conducted to optimise the process and minimize project delays in the case of accidental buckling of a pipeline. Closing of pipeline departure angle (which leads to a buckle) in the case of loss of propulsion is presented in a graph.

Trbojevic, V.M. and Vervest, W.H., Risk assessment of delays during deep water pipelaying, Proc. of ETCE/OMAE2000 Joint Conference, New Orleans, USA, 14-17 February, 2000.