Publications

Two Fuel Gas Compressors (FGC) deliver sweetened gas to Gas Turbine Generators (GTG) for power generation in Banyu Urip oil production facility. The fuel gas system started to experience multiple issue ranging from compressor’s thrust bearing failure to frequent diesel usage for the GTG due to scale formation at tube – bundle of Acid Gas Removal Unit Wet Surface Air Cooler (AGRU WSAC). This paper shares the background and evaluation of some potential solution to the problem, which is resulting an integrated short term and long term strategy. After completing a risk analysis approach, since facility modification in the sour gas system will lead to operation upset and unplanned downtime, then compressors and process operating parameters adjustment is chosen as the fastest and effective short term mitigation. The analysis also results a forward plan to perform chemical treatment for cooling water of the AGRU WSAC. This way, it will prevent additional scale formation and therefore prolong life the fuel gas system until AGRU WSAC tube – bundle replacement can be performed.