Aquamarine Subsea Solutions has been awarded a contract to upgrade Diamond Offshore’s 18-¾” 15M subsea stack for the Ocean Valiant semi-submersible, currently operating in the North Sea. Aquamarine will supply engineering design, fabrication, and assembly and test to upgrade the stack to accommodate five cavities, including the choke and kill flex loop and capture spool. The work will be carried out at Aquamarines’ Houston, Texas facility.
