External Corrosion Control Method of Hangzhou Bay Submarine Crude Oil Pipeline

The laying environment of submarine pipeline in Hangzhou Bay is harsh, and the corrosiveness of seawater is very strong. Once the corrosion leakage occurs, it will have a huge impact on the marine environment. The technical experience of Hangzhou Bay submarine pipeline in external corrosion control was summarized, and the difficulties in external corrosion control of submarine pipeline were proposed.