Shafeeq, Alvand (2024) Analisis Frekuensi Dominan dan Estimasi Faktor Kualitas Menggunakan Metode Centroid Frequency-Shift Sebagai Data Acuan Proses Pemulihan Minyak Vibroseismik Lapangan “SKYE”. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Indonesia menghadapi tantangan besar dalam industri minyak dengan produksi yang terus menurun setiap tahunnya. Enhanced Oil Recovery (EOR) adalah solusi potensial untuk meningkatkan produksi minyak, khususnya di lapangan tua. Metode vibroseismik EOR, yang menggunakan gelombang seismik untuk menggerakkan partikel batuan reservoar, menarik perhatian karena potensinya untuk meningkatkan mobilitas minyak. Penelitian ini menganalisis frekuensi dominan dan estimasi faktor kualitas (Q) menggunakan metode Centroid Frequency-Shift (CFS) di lapangan "SKYE". Pendekatan peluruhan frekuensi dilakukan dengan tiga model: linear, eksponensial, dan logaritmik. Hasil menunjukkan frekuensi dominan menurun seiring peningkatan Two-Way Travel Time (TWT). Model logaritmik menunjukkan variasi yang lebih ekstrem namun paling mendekati hasil pemodelan perambatan gelombang seismik, sementara model linear dan eksponensial menunjukkan stabilitas dan penurunan yang konsisten. Estimasi nilai Q menggunakan metode CFS menunjukkan nilai Q yang lebih rendah di lapisan yang lebih dalam, menandakan peluruhan energi seismik yang lebih cepat. Pemodelan perambatan gelombang seismik memvalidasi hasil estimasi Q dan menunjukkan penurunan frekuensi yang konsisten dengan hasil pendekatan peluruhan frekuensi, terutama pada model logaritmik. Penelitian ini memberikan dasar ilmiah untuk mengoptimalkan frekuensi getaran dalam proses vibroseismik EOR, meningkatkan efektivitas pemulihan minyak di lapangan "SKYE".
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Indonesia faces significant challenges in the oil industry with continuously declining production each year. Enhanced Oil Recovery (EOR) is a potential solution to boost oil production, especially in mature fields. The vibroseismic EOR method, using seismic waves to mobilize reservoir rock particles, is promising for enhancing oil mobility. This study analyses dominant frequency and quality factor (Q) estimation using the Centroid Frequency-Shift (CFS) method in the "SKYE" field. Frequency decay was approached using three models: linear, exponential, and logarithmic. Results show that dominant frequency decreases with increasing Two-Way Travel Time (TWT). The logarithmic model shows greater variation but aligns most closely with seismic wave propagation modeling results, while the linear and exponential models show stability and consistent decay. Q estimation using the CFS method reveals lower Q values in deeper layers, indicating faster seismic energy attenuation. Seismic wave propagation modeling validates the Q estimation results, showing consistent frequency decay with the frequency decay approach, especially with the logarithmic model. This research provides a scientific basis for optimizing vibration frequency in the vibroseismic EOR process, enhancing oil recovery effectiveness in the "SKYE" field.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | EOR Vibroseismik, Estimasi Nilai Faktor Kualitas (Q), Metode Centroid Frequency-Shift (CFS) ======================================================================================================================== EOR Vibroseismic, Quality Factor (Q) Estimation, Centroid Frequency-Shift (CFS) Method |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN269 Prospecting--Geophysical methods |
| Divisions: | Faculty of Civil Engineering and Planning > Geophysics Engineering > 33201-(S1) Undergraduate Thesis |
| Depositing User: | Alvand Shafeeq |
| Date Deposited: | 12 Aug 2024 00:58 |
| Last Modified: | 12 Aug 2024 00:58 |
| URI: | http://repository.its.ac.id/id/eprint/114951 |
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