| Bahan Kajian | - Pendahuluan:
Petroleum system, jenis-jenis jebakan minyak, sekilas akuisisi
seismik
Teori Dasar Seismik Refleksi:
- Definisi, jenis & sifat gelombang, Hukum Snell, waktu
tempuh gelombang, wavelet, noise, Prinsip Huygen,
difraksi
- Pengolahan data seismik:
- Sort and gather
- Pre-processing, filter : single channel (shaping,
bandpass, inverse Q dll)
- Penggunaan isotop
- Latihan interpretasi data kerogen batuan induk & tugas
- Filter : multi-channel (F-K, fan), koreksi statik (field &
residual)
- Dekonvolusi (prediktif, spiking, zero-phase)
- Analisa kecepatan
- Normal move out dan stack
- Migrasi (Kirchhoff sumation, F-K, finite difference
Pre-stack migration)
- Seismik Stratigrafi:
- Tujuan, prosedur, atribut refleksi (frekuensi,
kemenerusan, amplitudo,)
- Analisa fasies seismik
- Pemetaan fasies seismik : konfigurasi internal &
eksternal (toplap, downlap, onlap dll), karakterisasi
fasies seismik
- Interpretasi seismik:
- Interpretasi di daerah klastik pengenalan bentuk-bentuk
channel, fan, sidelobe, pola-pola refleksi, upper dan
lower boundary
- Interpretasi seismik karbonat konfigurasi refleksi,
atribut diag-nostik pd data seismik karbonat, analisa
lingkungan karbonat
Amplitude Versus Offset, inversi seismik, atribut
seismik
| - Introduction:
Petroleum system, types of oil traps, seismic acquisition at a glance
Basic Theory of Seismic Reflection:
-Definition , types & properties of waves, Snell's Law, wave travel time, wavelets, noise, Huygen's Principle, diffraction
- Seismic data processing:
- Sort and gather
- Pre-processing, filter: single channel (shaping, bandpass, inverse Q etc.)
- Use of isotopes
- Host rock kerogen data interpretation exercise & assignment
- Filters: multi-channel (F-K, fan), static correction (field & residual)
- Deconvolution (predictive, spiking, zero-phase)
- Speed analysis
- Normal move out and stack
- Migration (Kirchhoff sumation, F-K, finite difference Pre-stack migration)
- Seismic Stratigraphy:
- Purpose, procedure, reflection attributes (frequency, slope, amplitude,)
- Seismic facies analysis
- Seismic facies mapping: internal & external configuration (toplap, downlap, onlap etc.), seismic facies characterization
- Seismic interpretation:
- Interpretation in clastic areas recognizing channel shapes, fans, sidelobes, reflection patterns, upper and lower boundaries
- Carbonate seismic interpretation of reflection configurations, diag-nostic attributes on carbonate seismic data, analysis of
carbonate environment
Amplitude Versus Offset, seismic inversion, attributes
seismic
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