A Guided Tour of Seismic Processing of Multiples: Concepts, Applications, Trends

Instructor: Dr Clément Kostov
Language: English
Level: Intermediate
Duration and formats:
Online: 2 half-days of 3-4 hours CPD Points: 4
Classroom: 1 day CPD Points: 5

Course Description

An outline of the ten stops on this guided tour of the topic of multiples in seismic data processing is as follows:

First session:

  1. Examples of multiples in seismic data, definitions of multiples, numerical modeling, synthetics datasets.
  2. Multiple scattering at different scales in acoustic experiments (VSP, sonic, sea-bed profiling, crosswell, sonic).
  3. Using VSP and sonic data to gain understanding of multiples in surface seismic data.
  4. Multiples in model building and imaging seismic data processing workflows. Multiples as noise or as signal.
  5. Prediction methods for free-surface multiples and analysis of their properties; data-driven and model-based approaches.
  6. Adaptive subtractions and results assessment

Second session:

  1. Signal processing transforms and their applications to multiples
  2. Up-down deconvolution and inversion methods for sea-bed and streamer data
  3. Prediction methods for internal multiples; perspectives from Marchenko and Inverse Scattering Series theories.
  4. Case study examples: deep-water marine, shallow-water marine, land (based on published case studies).
  5. Wrap-up: historical developments, trends, emerging technologies.

For each of the ten topics above, there will be 20 min allocated, for a short presentation and time for questions and discussion. A handout and a reading list for each topic will be part of the material distributed before the class.

Participants’ Profile

The course is designed for geoscientists who work with or have an interest in surface seismic data and wish to gain a deeper understanding of the technology related to multiples in seismic data.

Prerequisites

Basic knowledge of surface seismic surveys and their acquisition, processing, and applications.

About the Instructor

Clément Kostov is a Consulting research geophysicist, based in France. He has had a 30 years career with SLB in research and technology development, with assignments as technical expert and as research manager, working in the UK, USA, France and Russia.

Clément's interest in geosciences started during his undergraduate studies at the Ecole des Mines de Paris and developed through graduate degrees from Stanford University (MSc in Applied Earth Sciences '85 and PhD in Geophysics '90).

Clément has co-organized several research workshops for the EAGE and SEG in past years and has been a keynote speaker at technical conferences. He is currently chair of the Editorial Board of EAGE's First Break magazine and Associate Editor for EAGE's Geophysical Prospecting. In 2021, he received the Geophysics Reviewer of the Year Award from SEG.

Clément is a member of the EAGE, SEG and IEEE professional societies.