One of our Clients, an operator in the Mid East has experienced a concern with adverse internal corrosion (and corrosion rate) of many scraper trap barrels for their crude oil upstream gathering and downstream crude export pipeline system. The upstream gathering system gross fluids contain H2S...
I would seek recommendations on which International design code to use for a 20", 6 Km, HPHT (900#, 600 degree F) cross-country steam pipline. My problem is B31.1 and B31.3 do not allow higher grade API 5L line pipe at these temperatures, and A106 Gr. B results in very high wall thicknesses...