Techno Economic Analysis of Online and Closed Loop Transformer Oil Purification System for Offshore Oil and Gas Platform

Abstract

The focus of this research is to conduct techno-economic analysis for investment on purification system of transformer oil in offshore oil and gas industry. The challenges of the purification system are the design shall be appropriate for limited space area, no production disruption (works online), and conducted without discharging from the pipe / transformer system in accordance with regulations. The methodology of this research is conducting literature study and review to previous researches and using existing contract data and manufacturer’s offering which applied in oil & gas industry of Indonesia. The result is the most appropriate purification system is the combination of filtration – degassing & dehydration – filtration methods, 70 cm x 70 cm x 125 cm in dimension. The investment is good in economic value which indicated by IRR value 25.24%, NPV IDR 2,425,529,703, and payback period 4.35 years.