Desain dan Karakterisasi Kinerja Electric Submersible Pump (ESP) Khusus Sumur Kandungan Gas Liquid Ratio (GLR) Tinggi: Analisis Ekonomi dan Kelayakan Investasi
DOI:
https://doi.org/10.29017/LPMGB.59.3.1915Kata Kunci:
electric submersible pump (ESP), gas liquid ratio (GLR), gas separator, laju produksi, keekonomian sumur, net present value (NPV)Abstrak
Penurunan produksi sumur minyak diakibatkan oleh faktor alami seperti penurunan tekanan reservoir, peningkatan kadar air, dan rasio gas-cair (GLR) tinggi, yang turut memengaruhi kinerja artificial lift. Electric Submersible Pump (ESP) dipilih sebagai solusi, meskipun menghadapi tantangan seperti gas lock dan keausan tak merata pada sumur direksional ber-GLR tinggi. Perencanaan ESP berfokus pada desain komponen seperti motor protector dan penggunaan Gas Separator Single Feature Rotary untuk mengatasi gas. Implementasi ESP pada tiga sumur menunjukkan peningkatan produksi yang signifikan: Sumur AZ-049 naik 12,7% (dari 902 BFPD ke 1017 BFPD), Sumur AZ-084 naik 86%, dan Sumur AZ-025 mencapai peningkatan tertinggi 124% (dari 246 BFPD ke 551 BFPD). Secara kolektif, proyek ini menghasilkan gross production total 2817 BFPD dan peningkatan minyak bersih (Oil Gain) 364,5 BOPD. Analisis keekonomian menunjukkan kelayakan finansial yang unggul dengan Net Present Value (NPV) $3,089 Juta, Profitability Index (PI) 30,07, dan Rate of Return (ROR) 2761,33%. Risiko likuiditas sangat rendah, ditandai dengan Pay Out Time (POT) hanya 0,035 tahun (sekitar 13 hari). Hasil ini mengindikasikan proyek ESP ini merupakan investasi yang sangat layak.
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