... assembly api 17tr12 prediction pressure case subsea system high pressure high temperature complex reservoir fea prediction validation application valve block subsea equipment validate hpht gate valve assembly hyperbaric chamber load case American Petroleum Institute, Technical...

... in this paper, some subtle, that must be evaluated and resolved before attempting to use equipment above its API RWP based on the presence of external hydrostatic pressure (from ambient seawater pressure or from the fluid column in risers or flowlines). API 17TR12 contains detailed guidelines on these issues...