Unit SEISMIC INTERPRETATION AND DIGITAL SUBSURFACE MODELLING
- Course
- Geology for energy resources
- Study-unit Code
- A004707
- Location
- PERUGIA
- Curriculum
- In all curricula
- Teacher
- Giorgio Minelli
- Teachers
-
- Giorgio Minelli
- Hours
- 73 ore - Giorgio Minelli
- CFU
- 9
- Course Regulation
- Coorte 2024
- Offered
- 2024/25
- Learning activities
- Caratterizzante
- Area
- Discipline geologiche e paleontologiche
- Academic discipline
- GEO/03
- Type of study-unit
- Obbligatorio (Required)
- Type of learning activities
- Attività formativa monodisciplinare
- Language of instruction
- English
- Contents
- The method of seismic reflection in the context of procedures for exploration for and development of oil and gas reserves, the qualitative and quantitative analysis at different scales. Fundamentals of seismic reflection method. Flow procedure of 2D seismic interpretation. Display of the seismic interpretation results.
- Reference texts
- A petroleum Geologist's Guide to seismic reflection by William Ashcroft, Wiley-Blackwell, 2011
Seismic reflection interpretation by M.K.Jemyon and A.A.Fitch, Gebruder Borntraeger, 2nd ed. 1985
AAPG Studies in Geology #27, vol.2, Seismic expression of structural styles. A.E. BALLY, 1987
AAPG Studies in Geology #27, vol.1: Atlas of Seismic Stratigraphy, A. W. Bally, 1987.
AAPG Studies in Geology #27, vol.1: Atlas of Seismic Stratigraphy, A. W. Bally, 1987.
https://seismicinterpretation.weebly.com/index.html - Educational objectives
- The course aims to provide students with the basic principles of the interpretation of seismic reflection profiles.
The main knowledge gained will be: draw the the most significant seismic horizons, identify seismic sequences (seismic stratigraphy) and characterize the seismic facies (seismic facies), identify possible relationships between the tecto-sedimentary environments and their evolution over time.
The main skills (ie the ability to apply their knowledge) will be: interpret the 2D seismic data to reconstruct the geological evolution of an area. Identify possible prospects. Reconstruct maps of the underground in times and depths from seismic data and well. Calibrate the seismic lines with synthetic seismograms. - Prerequisites
- In order to understand and be able to profitably apply the techniques described in the teaching it is very important students know the basic concepts of sedimentology, structural geology and applied geophysics, of the latter, in particular, methods of seismic reflection and potential methods (gravimetry and magnetometry).
- Teaching methods
- The course is organized in lectures and at the end of each topic are carried out practical lessons in which they apply and, if necessary, repeat the concepts developed in the lectures. All classes are conducted on a real case. In lectures it makes extensive use of audiovisual media.
- Other information
- For meeting and requests please use the following email
GIORGIO.MINELLI@UNIPG.IT - Learning verification modality
- The final tests are written and are organized as scheduled examinations.
- Extended program
- 1) The method of seismic reflection in the context of procedures for exploration for and development of oil and gas reserves, qualitative and quantitative analysis, different targets at different scales
2) Fundamentals of seismic reflection: Raypath (Snell's law), the characters of the waveform, speed of seismic waves in the rocks in liquids and gases, static and dynamic corrections, migration, noise, vertical resolution, horizontal resolution, the signal to noise ratio, reflection coefficient.
3) Seismic 2D, 3D, 4D, acquisition on land, acquisition offshore, receivers and geometries, costs
4) Data processing of seismic reflection: general noise suppression and image enhancement techniques seismic, DHI, AVO and seismic attributes.
5) Flow of the 2D seismic interpretation procedure: anatomy of the seismic line (how to get informations from the seismic line), base map, procedure of piking reflector, seismic facies, seismic stratigraphy, remaind concepts of sequence stratigraphy, pittfals and artifacts, synthetic seismograms, conversion in depth, quantitative characterization of the reservoir and trap.
6) Results seismic interpretation: map generation of contours (time and depth)