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Pipeline installation modelling

Pipeline installation modelling

Pipeline installation modelling

(OP)
Hi guys, it will definitely be helpful if anyone around is a pipeline installation engineer.
I am pretty new in this field and was wondering how in real fact pipelaying works (i.e., is the pipeline payout due to barge movement or tension reduction??). Currently working on OFFPIPE and purely on using existing models to get results but no idea how it really works dynamically and from OIC point of view.

RE: Pipeline installation modelling

Barge movement.  You hold a given tension on your pipe to keep its curvatures within tolerance and hence your stresses controlled within acceptable limits, for any given water depth and pipe weight.

Start playing with a model of a chain sagging under its own weight (a catenary curve) that is tangent to the stinger at the top and tangent to the mudline at the bottom and see how the tension forces change when you vary the chain weight and the horizontal span and the depth of water and what you see in Offpipe will begin to make more sense.  

Let your acquaintances be many, but your advisors one in a thousand'  ...  Book of Ecclesiasticus

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