Basic Seismic Data Processing

Who should attend:

Geophysicists -acquisition, processing and interpretation- who are actively involved in seismic processing and/or liaise with seismic processing contractors. Geophysicists who are involved in special studies and should have a thorough understanding of conventional processing.

Overview:

During the last decade seismic has become the key tool for hydrocarbon exploration and development success. With the advance of computer technology, processing has increasingly helped to acquire a competitive edge. There are various ways to acquire seismic data and a variety of objectives for which the data can be used. Hence there is no standard procedure in seismic data processing. There is also a drive to extract more and more from the data and therefore scope for reprocessing. This course gives an overview of the steps that are common in seismic data processing and discusses for each step the variety of alternative implementations together with their inherent assumptions and strengths and weaknesses. This course should enable participants to assess the impact of different processing methods with respect to the stated objectives.

Content:

The following steps in seismic processing will be discussed:

• Static corrections
• Velocity analysis
• Deconvolution: stochastic and deterministic
• Signal-to-noise enhancement techniques
• Multiple elimination
• Stacking processes
• Dmo (dip move-out)
• Migration: time and depth
• Velocity modelling.

At the end of the course the participants will have obtained a thorough understanding and appreciation of the many alternative processing approaches that are commonly applied. They can act as processing geophysicist and/or liaise with the seismic processing contractor; they will be able to assess the implications of each particular processing route. The course includes theory, exercises and examples from both synthetic and real data; a handout that covers all course material will be made available.

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