Basic Geophysics
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Basic Geophysics Course
Introduction:
A profitable development of an oil or gas field starts with a good understanding of the subsurface, for which geophysical techniques are essential. During this course, an overview is given of the geophysical methods deployed in the oil industry with the main emphasis on the seismic reflection technique. Aspects of seismic data acquisition and processing will be treated, followed by interpretation and quantitative methods. Lectures are complemented by extensive exercises.
Course Objectives:
Participants will be able to
- Well log to seismic ties
- Developing contour maps
- Developing fault plane maps
- Time-to-depth conversion
- Seismic sequence analysis
- Workstation interpretation of 3D data
- Effects of seismic acquisition and processing on interpretation
Participants will
- Learn to use Seis-works Seismic analysis software from Landmark. Participants will be able to manipulate and view 2-d and 3 d seismic data, Correlate marker horizons and correlate this with stratigraphy. Estimate litho logic properties such as thickness and porosity from seismic data. Identify and correlate faults, and features such as the presence of natural gas and the water table.
- Learn to interpret geology from Seismic Data, including locating faults, folds, stratigraphic sequences.
- Learn the limits of seismic resolution
- Learn how changing dips and other rock properties affect seismic response.
Who Should Attend?
Petroleum engineers and geologists/geophysicists involved with the exploration and development of oil and gas reservoirs? course an overview is given of the geophysical methods deployed in the oil industry with the main emphasis on the seismic reflection technique. Aspects of seismic data acquisition and processing will be treated, followed by interpretation and quantitative methods. Lectures are complemented by extensive exercises
Course Outlines:
- Summary of non-seismic method
- Key elements of surveying
- Introduction of wave propagation and seismic velocities and rock properties
- Practical aspects of seismic acquisition
- Overview of seismic pre-processing, statics, velocity analysis and migration
- Well geophysics
- Structural interpretation
- Stratigraphic interpretation
- Time to depth conversion
- Quantitative interpretation, including hydrocarbon effects
- Seismic artefacts
- Uncertainties
- New developments
