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JFZ4023 | Seismic Data Processing | 2+0+0 | ECTS:4 | Year / Semester | Fall Semester | Level of Course | First Cycle | Status | Elective | Department | DEPARTMENT of GEOPHYSICAL ENGINEERING | Prerequisites and co-requisites | None | Mode of Delivery | Face to face | Contact Hours | 14 weeks - 2 hours of lectures per week | Lecturer | Prof. Dr. Hakan KARSLI | Co-Lecturer | | Language of instruction | Turkish | Professional practise ( internship ) | None | | The aim of the course: | to teach processing of land and marine seismic data and preparing the data for interpretation |
Learning Outcomes | CTPO | TOA | Upon successful completion of the course, the students will be able to : | | | LO - 1 : | learn characters and content of land and marine seismic data | 2,4 | 4 | LO - 2 : | learn workflows in seismic data processing | 2,4 | 1,5 | LO - 3 : | learn processing of seismic data by using a software | 2,4 | 4,5 | CTPO : Contribution to programme outcomes, TOA :Type of assessment (1: written exam, 2: Oral exam, 3: Homework assignment, 4: Laboratory exercise/exam, 5: Seminar / presentation, 6: Term paper), LO : Learning Outcome | |
Basic signal processing principles: frequency, periyor, wavelength, wavenumber, velocity parameters, time and spave sampling rules, spectral content, problems and solution. Seismic Data Groups, Recording Format: Land and marine seismic data, SEGD, SEG2 and SEGY data structure, demultiplexing and data imaging. Seismic Data Quality Control: trace editing, amplitude correction or compensetation, spectral content control. Stacking Data: Sorting, CMP (or CDP) groups, NMO correction and stack. Seismic Noises and Filters: signal and noise, coherent and incoherent noises and their characteristics, types of filters and features. Seismic Dekonvolution: Meaning of dekonvolution, types of Wiener deconvolution (spiking, predictive and wavelet shaping). Velocity Analysis: constant velocity panels, constant velocity stack, velocity spectra (or semplance). Statical Correction: Eleviation and Weatheringt (Low Velocity Layer) correction, up-hole shooting, refraction statics. Data Enhancement: Spectral extrapolation, iterative deconvolution. Seismic Migration: Seismic migration basis and rules, Post-stack Stolt migration (f-k). Seismic Modeling, Image Techniques: Importance of reflection coefficients, seismic wavelet and types, convolutional modeling, prestack and post stack modeling, wiggle, wiggle+are, colored+area imaging. PROMAX software and Matlab based seismic data processing applications in SeisLab. |
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Course Syllabus | Week | Subject | Related Notes / Files | Week 1 | Basic signal processing parameters | | Week 2 | Seismic data groups, recording format, data loading | | Week 3 | Seismic data quality controls | | Week 4 | Seismic data quality controls | | Week 5 | Seismic noises and filters | | Week 6 | Data stacking | | Week 7 | Velocity analysis | | Week 8 | Statical correction | | Week 9 | Assignment control | | Week 10 | Data enhancement | | Week 11 | Seismic migration | | Week 12 | Modeling and imaging | | Week 13 | Application-1 | | Week 14 | Application-2 | | Week 15 | Application-3 | | Week 16 | Final exam | | |
1 | Dondurur, D., 2009; Deniz Sismiğinde Veri İşlem, TMMOB Jeofizik Mühendisleri Odası Yayınları, No.11, Ankara | | 2 | Yılmaz, Ö., 2001; Seismic data Analysis: Processing, Inversion, and Interpretation of Seismic data. SEG Tulsa, 2027 pp. | | |
Method of Assessment | Type of assessment | Week No | Date | Duration (hours) | Weight (%) | Presentation | 9 | | 2 | 50 | End-of-term exam | 16 | | 1 | 50 | |
Student Work Load and its Distribution | Type of work | Duration (hours pw) | No of weeks / Number of activity | Hours in total per term | Yüz yüze eğitim | 2 | 13 | 26 | Sınıf dışı çalışma | 2 | 5 | 10 | Laboratuar çalışması | 2 | 3 | 6 | Arasınav için hazırlık | 2 | 1 | 2 | Uygulama | 2 | 7 | 14 | Dönem sonu sınavı için hazırlık | 2 | 1 | 2 | Dönem sonu sınavı | 2 | 1 | 2 | Total work load | | | 62 |
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