Back Geotechnical Works and Underground Structures PETS - Sines Terminal Expansion Project - Seawater Rejection Tunnel Sines Terminal, Portugal ClientREN Atlântico – Terminal GNL, S.A. / PETS (Project for the Expansion of the Sines Terminal) / Somague, S.A. LocationSines Terminal, Portugal Design date2009 Construction date2010 - 2011 ServicesDetailed Design; Monitoring, Control and Technical Assistance to the Construction ConstructionSomague, S.A. SummaryHydraulic tunnel built by NATM with 230 m extension integrated in the LNG (Liquefied Natural Gas) reservoirs cooling systems. PETS - Sines Terminal Expansion Project - Seawater Rejection Tunnel Project detail