Optimisasi Ekonomi Carbon Capture, Utilization, and Storage (CCUS): Pendekatan Iteratif Latin Hypercube Sampling dalam Menentukan Laju Injeksi CO₂
DOI:
https://doi.org/10.29017/LPMGB.59.1.1796Kata Kunci:
Carbon Capture and Storage, Enhanced Oil Recovery, Iterative Latin Hypercube Sampling, Net Present Value, CO₂ Injection Rate, Economic OptimizationAbstrak
Optimisasi ekonomi dalam penerapan Carbon Capture, Utilization, and Storage (CCUS) sangat penting untuk menjamin kelayakan proyek di tengah fluktuasi harga energi dan ketidakpastian operasional. Penelitian ini mengembangkan dan menerapkan metode Iterative Latin Hypercube Sampling (ILHS) untuk menentukan laju injeksi CO₂ yang optimal berdasarkan kriteria Net Present Value (NPV). Simulasi dilakukan pada model reservoir PUNQ-S3 dengan penggabungan program optimisasi berbasis FORTRAN dan simulator komersial CMG-GEM. Tiga studi kasus dengan variasi harga minyak ($70 dan $30 per barel) dan discount rate (0% dan 10%) dianalisis untuk menilai sensitivitas terhadap NPV. Hasilnya menunjukkan bahwa ILHS mampu mencapai konvergensi yang cepat dengan kebutuhan sumber daya komputasi yang relatif rendah, serta menghasilkan laju injeksi optimal yang berbeda tergantung pada parameter ekonomi. Studi ini menegaskan pentingnya mempertimbangkan faktor ekonomi dinamis dalam penentuan strategi injeksi CO₂ dan menunjukkan bahwa ILHS merupakan metode yang robust dan efisien untuk optimisasi CCUS berskala lapangan.
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