Education Days Moscow 2017

Multiple Short Course Programme

Date
13 - 17 November
Location
Moscow, Russia
Registration
Closed
Call for papers
Closed

Seismic Attributes and their Applications in Seismic Interpretation

Date Nov 13
Instructor Behzad Alaei
Discipline  Geology - Geological Modelling

Course summary 

The course is divided into two parts: attributes review/applications and workflows. The first  part starts with a review of seismic attributes and discusses the noise (random and coherent) reduction as one essential step of all attribute studies. The number of seismic attributes
increased dramatically causing confusion for geoscientists to select appropriate ones. A series of trace-based attributes, volumetric dipand azimuth, fault detection and enhancement attributes, volumetric curvature and frequency decomposition are presented in this course
and, for every attribute, a short theory will be followed by applications using examples from different sedimentary basins. Frequency decomposition is briefly presented with different decomposition methods such as wavelet transform, Fourier transform and matching pursuit analysis. Examples illustrate the interpretation challenges associated with frequency decomposition data interpretation.
The concept of multi-attributes and geobody extraction is introduced at the end of the first part of the course with examples on combinations of amplitude, phase, discontinuity and frequency attributes to visualize different geological objects. Iso-proportional slicing as a
powerful interpretation tool is discussed. In the second part of the course stratigraphic and structural workflows will be presented using the acquired attributes. The workflows (and the elements for their planning) aim to show the integration of several attributes for specific
interpretation purposes, with examples of stratigraphic (fluvial/shallow marine clastic systems, attribute expressions of deep water turbidites and carbonate settings) and structural imaging workflows.
Lastly, the course analyses the importance of the integration of seismic attribute analysis processes with the other seismic interpretation (qualitative or quantitative) workflows.

Participants’ profile

The course addresses geoscientists involved in exploration and production projects where seismic play a role and who wish to learn the basic theory of the main seismic attributes used in exploration and production, as well as their applications and how to integrate them in exploration and reservoir characterization studies.

Instructor’s biography 

Behzad AlaeiBehzad Alaei received a B.Sc. degree from University of Tehran in Geology in 1991 and joined the National Iranian Oil Company (NIOC). He received M.Sc. degree from Institute of Geophysics, University of Tehran in seismology in 1997 and served in NIOC-Exploration Geophysics department till 2002. He has been involved in seismic interpretation and acquisition planning, and processing supervision. He also served as lead geophysicist in PetroIran Development Company which he planned and leaded geophysical studies (from acquisition planning to seismic reservoir characterization). He moved to Norway in 2002 and did his Ph.D. in exploration seismology in 2006 at the University of Bergen in cooperation with Norsk Hydro (now Statoil) research Center. He joined Rocksource (now Point resources) in late 2006 where he served as chief geophysicist until the end of 2015. He is co-founder and geophysicist in Earth Science Analytics working with both research and applied seismology. He carried out several seismic attribute studies over different sedimentary basins from Asia to Norwegian continental shelf and Gulf of Mexico.

He is a member of EAGE, SEG, and CSEG (Canadian Society of Exploration Geophysicists).

Prerequisites

Participants should have knowledge of seismic interpretation. Mathematical concepts of attributes are presented with minimum required equations and graphic illustrations. Some basic knowledge of seismic exploration may help.