Navatech Ltd was contracted by Boskalis Subsea Services to perform the seafastening of the MDL gen 2 Mobile Reel Drive system (MRDS) onboard the Boka Nortern Ocean as part of the Shell Penguin project. The MRDS assembly includes two towers of 60Te each, six lengths of 12m skidding track which are bolted to the Boskalis grillage to distribute the loading onto the deck. Additional steel has been added underdeck to strengthen two bulkheads.

The MRDS has installed new flexible from five reels over two trips.
First trip:

• Fwd reel: 267.9Te
• Middle reel: 235.6Te
• Aft reel: 243.2Te

Second trip:

• Fwd reel: 159.2Te
• Middle reel: N/A
• Aft reel: 149.4Te

(Photos courtesy Boskalis subsea Services)