External pressure consideration in deep offshore

"Akin Akangbe" wrote in message news:487f653a@news.prod-bent.dmz...

Am presently working on a deep offshore tie-in analysis. Can you kindly explain to me how I can consider the effect of external pressure in my analysis. Without inclusion of external pressure, I suspect that the effective force derived by AutoPIPE is not right.

Also, how do I model negative pressure for a case of higher external pressure compared to internal pressure as is the case with deep offshore

in the range of 2500m and above