ABSTRACT

This paper describes how to apply the PIM deepwater installation technology to install a 195Te manifold in a water depth of 1,500m. The analysis methodology and numerical findings of the PIM installation are presented here for lifting off deck, overboarding, lowering through slash zone and water column, finally landing into the target box on the seabed. This PIM method is cost effective compared to utilization of scarce specialized deepwater installation vessels or formidably expensive drilling rigs. It should be pointed out that, due to complex geometry of the manifold, hydrodynamic instability may arise during launch operation.

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