... is making the option of subsea wells an increasingly popular choice. The wellheads are often located on the seabed, with flow lines running along the seabed until they reach a riser that carries the production fluids up to a vessel, such as a Floating Production System (FPS), or to an existing platform...

... While cathodic protection is frequently applied to well casings of onshore wells to prevent detrimental corrosion and leaks /1,2/, subsea wells are not defined as critical objects that require cathodic protection per design. This is due to the low corrosivity...