merged

The Effects of Current Velocity on the Structural Response of Fully
Submerged Artificial Reef of Jacket Structure
Siti Nurul Shazwani Binti Shalihir
Supervisor: Dr. Mohd Asamudin A. Rahman
Bachelor of Applied Science (Maritime Technology)
School of Ocean Engineering
Universiti Malaysia Terengganu
When oil and gas platforms become obsolete, the platform will undergo a
decommissioning process. One of the decommissioning methods is partial removal,
where the half of the jacket leg structure is removed from the submerged platform
and placed on the sea floor nearby or at another site to be served as an artificial reef.
The lifespan of the fully submerged artificial reef depends on the environmental
conditions such as wave and current. This paper study the effects of current velocity
on a three-dimensional jacket offshore structure model to measure the dynamic
response under different current velocity ranging from 0.2 m/s to 1.2m/s with constant
direction. The jacket platform was modelled and analyzed using SACS Offshore
Structure Design and Analysis Software. It was expected that the current velocity will
influence the performance of the jacket structure. For larger mud line, the platform
responses increase significantly due to the increased current velocity.
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