Deepwater installs RetroMats on methanol pipeline in Equatorial Guinea.
Deepwater Corrosion Services Inc., USA, in conjunction with Alduco Engineering Services, Malabo, successfully designed and installed 20-year Cathodic Protection (CP) retrofit systems for Atlantic Methanol Pipeline Company (AMPCO), Equatorial Guinea subsea facilities in the Gulf of Guinea on the Western African coast. This retrofit will protect a 2km 24” methanol pipeline and its PLEM, and two each of seawater intake and outfall protective frames using Deepwater’s RetroMat sacrificial retrofits of various sizes. Deepwater’s RetroMat sacrificial CP system comprises a concrete ballast mat with integral aluminum (Al-Zn-In) anodes. Each system is designed uniquely to satisfy both CP current and alloy mass requirements for each facility on a 20-year life extension. The least negative CP potential observed was 1025mV vs Ag/AgCl reference electrode, which was recorded immediately before installation.