Study of Optimum Leg Diameter for Malaysian Field Based on UC Value

There are about 200 platforms currently being operated by various operators in Malaysia. These platforms are currently operating under the Peninsular Malaysia Operation (PMO), Sabah Operation (SBO) and Sarawak Operation (SKO). Most of these platforms were built and installed more than 20 years ago and already exceed their life design. During that particular time, the data used for the design was based on the one that has been used for the Gulf of Mexico. The data has still being used to design the new platform in term of defining the size of the member. Hence, it is very significant to make a study on the unity check ratio (UC) for these platforms and do the comparison using between these platforms. This is to determine for any platform that has already been over designed.