ANALISIS INTERPRETASI DATA KUALITATIF DAN KUANTITATIF DATA WELL LOGGING UNTUK EVALUASI FORMASI PADA SUMUR X LAPANGAN Y
DOI:
https://doi.org/10.53026/prosidingsntem.v5i1.663Keywords:
Well Logging, Hidrokarbon, Porositas, Water Saturation,, Payzone, Gammaray, Shale, DepthAbstract
Interpretasi well log merupakan tahapan penting dalam evaluasi formasi untuk mengidentifikasi karakteristik batuan reservoar dan menentukan potensi hidrokarbon. Penelitian ini mengintegrasikan analisis kualitatif dan kuantitatif terhadap data Sumur X di Lapangan Y dengan tujuan mengetahui zona produktif dan sifat petrofisika utama. Analisis kualitatif digunakan untuk mengenali litologi, zona permeabel, serta indikasi fluida hidrokarbon melalui respon log Gamma Ray (GR), Resistivity (Rt), Density (RHOB), dan Neutron (NPHI). Selanjutnya, analisis kuantitatif dilakukan untuk menghitung parameter porositas efektif (Φe) dan saturasi air (Sw) berdasarkan hasil pengolahan data LAS menggunakan perangkat lunak analisis well log dan perhitungan tambahan melalui spreadsheet. Hasil penelitian menunjukkan bahwa interval kedalaman 246–400 ft memiliki nilai porositas efektif antara 0,17–0,42 dan saturasi air antara 0,03–0,28, yang menunjukkan dominasi fluida non-konduktif seperti minyak. Nilai resistivitas yang tinggi dan respon GR yang rendah mengonfirmasi bahwa lapisan tersebut merupakan zona reservoar utama yang berpotensi produktif. Integrasi pendekatan kualitatif dan kuantitatif dalam penelitian ini memberikan hasil interpretasi yang lebih akurat dan komprehensif, serta dapat meningkatkan keandalan evaluasi formasi dalam penentuan potensi hidrokarbon.
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