A STUDY ON STRUCTURAL INTEGRITY OF CORRODED OFFSHORE FIXED PLATFORM UTILIZING PUSHOVER ANALYSIS

Oil and gas industry in Malaysia has been well established in the region. Since the water
depth in Malaysia is categorised as shallow water depth, majority of the offshore
platforms built in Malaysia is the fixed jacket-type platform. Jacket platform in Malaysia
is mostly reaching the end of design life, which is 30 years. The newest current oil
extracting method like Enhanced Oil Recovery (EOR) pushed the aging jacket-type
platforms to be used beyond their design life. Hence, structural assessment is needed to
assess the capacity of the platform for further use. The research objective is to determine
and compare the effect of time-dependent corrosion data namely Average Mean
Corrosion and Severe Mean Corrosion to Ultimate Strength and Reserve Strength Ratio
(RSR) of three (3) platforms specifically located in Sarawak Operations (SKO) owned
by PETRONAS.