ANALYSIS OF STRESS AND DISPLACEMENT PROFILE ON 30" PIPELINE RISER AT MLNG TIGA

This project is mainly concerns about the analysis on the finite element simulation of a 30-inch
pipeline riser. The area of interest is focused on the displacement of the riser due to internal and
external loads applied on the pipeline riser. This project is in collaboration with PETRONAS
Carigali Sdn. Bhd (PCSB). Pipeline riser is subjected to internal pressure caused by the fluid
inside the pipeline and external pressure, which is the underwater hydrostatic pressure. This
could cause the pipeline to experience some displacement or dislocation. Thus, the aim of this
study is to simulate the pipeline riser under operating condition and analyze the profile of the
pipeline riser using a 3D Finite Element Analysis software. The scope of the study basically
covers four main phases starting from literature review, data gathering, modeling and simulation
run using software, and finally analyzing the profile of the pipeline riser model prior to the result
obtained from the simulation. The methodology of this project demonstrates on how a pipe
simulation is done using a 3D Finite Element Analysis software. The simulation used is based on
a piping network model provided by the software and the output of the simulation is used for the
analysis at the final stage of the study. This study has come out with results that were found to be
inaccurate. The displacements of the pipeline riser have been determined from the simulation.
The results obtained from the simulation are however reasonable considering the limitations that
was set earlier in the project. The author has successfully managed to simulate the 3D model
using the software identified.