Nugraha, Farel Reyhananda (2019) Aplikasi Seismik Multi Atribut untuk Analisa Sebaran Reservoir Batugamping pada Formasi Cibulakan Atas, Lapangan “PPY”, Cekungan Jawa Barat Utara. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Metode seismik multi-atribut menunjang interpretasi seismik dengan menampilkan fitur tersembunyi, dengan mengidentifikasi pola serupa, dan dengan mengkuantifikasi properti spesifik seperti reservoir hidrokarbon. Formasi Cibulakan Atas memiliki sejumlah fracture porosity pada batugamping berisi residu hidrokarbon yang mengindikasi kemungkinan adanya reservoir hidrokarbon. Digunakan metode seismik atribut yang bertujuan untuk memetakan persebaran batugamping pada formasi ini juga dengan saran zona prospek sumur produksi yang diharapkan dapat membantu dalam menentukan titik sumur baru. Hasil analisis sensitivitas log menunjukkan log gamma ray sensitif terhadap target, dengan nilai cutoff rendah 60 GAPI. Sedangkan hasil analisis sensitivitas atribut menunjukkan atribut Signal Envelope, Envelope Derivative, Instantaneous Frequency, Weighted Mean Frequency, Instantaneous Bandwidth, dan Dominant Frequency sensitif, dengan nilai cross correlation>0,30. Selanjutnya didapatkan zona prospek sumur produksi baru A, B dan C didasardasarkan pada nilai gamma ray, morfologi (daerah tinggian), dan belum terdapat sumur pada zona tersebut.
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Multi-attribute seismic analysis is widely used to support seismic interpretation by enhancing hidden geological features, identifying similar patterns, and quantifying reservoir properties, including hydrocarbon-bearing formations. The Upper Cibulakan Formation contains fractured limestone with hydrocarbon shows, indicating its potential as a hydrocarbon reservoir. In this study, seismic attribute analysis was applied to map the distribution of limestone within the formation and to identify prospective zones for future production wells. The results of the log sensitivity analysis indicate that the gamma ray log is the most sensitive parameter for identifying the target formation, with a cutoff value of less than 60 GAPI. Sensitivity analysis of seismic attributes shows that the Signal Envelope, Envelope Derivative, Instantaneous Frequency, Weighted Mean Frequency, Instantaneous Bandwidth, and Dominant Frequency attributes provide the highest sensitivity, with cross-correlation coefficients greater than 0.30. Based on the gamma ray values, structural morphology characterized by relatively high elevations, and the absence of existing wells, three prospective production well locations, designated as Zones A, B, and C, were identified as the most promising targets for future hydrocarbon exploration and development.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Persebaran Reservoir Batugamping, Seismik Multi-Atribut, Zona Prospek Sumur Produksi |
| Subjects: | Q Science > QE Geology > QE538.5 Seismic tomography; Seismic waves. Elastic waves Q Science > QE Geology > QE539.2.S4 Seismic models Q Science > QE Geology > QE601 Geology, Structural |
| Divisions: | Faculty of Civil Engineering and Planning > Geophysics Engineering > 33201-(S1) Undergraduate Thesis |
| Depositing User: | Nugraha Farel Reyhananda |
| Date Deposited: | 23 Jul 2026 00:43 |
| Last Modified: | 23 Jul 2026 00:43 |
| URI: | http://repository.its.ac.id/id/eprint/67908 |
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