
Figure 1 – Polytropic efficiency over time of compressor sections.

Figure 2 – % Opening of primary vent valve and primary vent ∆P trend over time.
Define the optimal scope of maintenance for the compressors train through an analytical and data driven approach.
CST recommended to skip the Major Overhaul at the upcoming early 2023 shutdown, only replacing the DGSs. Rescheduling the MOH for 2028
Significant Opex saving and shorten the window of the Turnaround thus saving production for 2,000 k$.