Mammoet completes loadout of 7,400-tonne offshore platform
Mammoet weighs, jacks and loads out 7,400 offshore, ice-resistant, stationary platform LSP-2 onto a barge for its further transport to the Filanovsky field in the Caspian Sea, Russia
Mammoet has completed the load-out of the 7,400 offshore, ice-resistant, stationary platform LSP-2 onto a barge for its further transport to the Filanovsky field in the Caspian Sea, Russia.
For weighing and jacking of the 7,400-metric-ton platform, Mammoet used their JS2400 push-up system. This allows heavy and oversized structures to be constructed on the ground and subsequently raised to the correct height ready for the load-out operation.
In this case a load-out frame was inserted during jack up to provide sufficient height for installation at sea. Using this system removes the need to work at height, significantly increases safety and reduces the operation time. As a result, the load out of the platform took less than 40 days.
The Filanovsky field is the largest oil discovery in Russia in the past 25 years, with reserves equal to 129 million tonnes of oil and 30 billion cubic meters of gas. The production rate of the platform will equal six million tonnes a year.
Mammoet Russia won the contract for weighing, jacking and the load-out of the LSP-2 platform in part due to its role in 2014 in helping Lukoil with the construction and load-out of a central processing platform (CPP) for the Vladimir Filanovsky field weighing nearly 10,000 tonnes.
It was the heaviest load-out of this type in Russia. The project took more than 18 months of preparation, including calculations, design engineering, and coordination.
Detailed planning was required as the depth and flow of the Volga river provided an execution window of just four days. However, when the time came, the river levels hit the optimum point earlier than anticipated.
By being quick on their feet and by mobilizing the right staff from their global pool, Mammoet nevertheless successfully responded to the new situation and on 12 June 2014 the CCP topside along with a transport frame were successfully installed on barge supports.