Optimization of Production Surface Facilities in Mature Gas Compression System in APO and Point B with Economic Valuation Strategy

Mature gas field optimization for new local company for operatorship shall begin with main production problems identification and cost readiness, for Gas Compression Area Cluster IV (APO) and Unit 26 (Point B) operation, the main problem is the production facility equipment needs to modify surface production facility to adapt the current operating conditions. Excessive fuel own use has more challenging for new operator, in additional, several joint agreements in Facilities Sharing Agreement also need to be considered. First and foremost, generating surface production facility resizing programs that directly contribute to reduce fuel own use should be put on priority with business scheme toward Operation Expenses i.e., rental equipment models should be put in first consideration as the company needs cash to do exploration in the area. Gas Compression is a vital system in the distribution of Gas. The existing gas booster compressor cluster IV (K/KGT-4920) and gas booster compressor unit 26 (K/KGT-2601) are 2 (two) stage LP/HP Centrifugal machine driven by Gas Turbine. Fuel gas consumption of K/KGT-4920 in the amount of 3.8 MMSCFD and fuel gas consumption of K/KGT-2601 in the total amount of 6.2 MMSCFD. There is one project were in Cluster IV Gas Compression area that will be executed to reduce fuel own use in gas booster compressor package for Cluster IV and Unit 26 as well as increasing sales gas. Resizing of new gas booster compressor package cluster IV (K/KGT-4920) is adjusted to the gas booster compressor package unit 26 (K/KGT-2601) output by means directly delivered to the Inlet treating unit of Point B. The new size of gas booster compressor will reduce total amount of fuel gas consumption ± 6.9 MMSCFD, therefore, the equal gas sales will increase in the same amount that will contribute extra income of 37,464 USD on daily basis. Based on the project economic valuation from Q4 2023 up to Q4 2028, the expected Net Present Value (NPV) worth 27,800,000 USD after replacement of the existing compressor looks profitable.