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GL5545: SEISMIC REFLECTION ACQUISITION AND PROCESSING (2020-2021)

Last modified: 05 Aug 2021 13:04


Course Overview

This module will cover on the most important essentials of reflection seismics: from basic to advanced information on how seismic data are acquired and processed to generate images of the subsurface. Practical exercises involving processing of seismic reflection data will form a significant part of the curriculum with the aim of familiarising students with key industry software packages.

Course Details

Study Type Postgraduate Level 5
Session Second Sub Session Credit Points 15 credits (7.5 ECTS credits)
Campus Aberdeen Sustained Study No
Co-ordinators
  • Dr David Cornwell

What courses & programmes must have been taken before this course?

  • MSc Geophysics
  • Any Postgraduate Programme

What other courses must be taken with this course?

None.

What courses cannot be taken with this course?

None.

Are there a limited number of places available?

No

Course Description

The theory and practical aspects of seismic reflection data acquisition will be covered, both in marine and land environments. Students will then follow a practical seismic processing task, with relevant theory and background information on the key steps, using an industry-standard processing package.

  1. Pre-stack processing: Reformatting seismic data; assigning geometry to seismic trace headers  2. Trace gathering  3. Velocity analysis: NMO stretching, muting, semblance, coherence maps  4. Comparing semblance maps, picking a semblance map; picking reflection events  5. Normal move-out correction; stacking CMP gathers  6. Editing: Killing and muting traces  7. Testing and applying deconvolution (deterministic and statistical: wavelet amplitude and phase shaping, predictive deconvolution) band pass filtering  8. Residual statics correction, velocity analysis iteration 9. Multiple suppression (FK, FX, Radon-domian, Tua-p and SRME)  10. Migration: principles, methods (Kirchloff, FD, FK), Post- and pre- stack time and depth migration
  2.  Post-stack processing, generating a client stack

In light of Covid-19 this information is indicative and may be subject to change.

Contact Teaching Time

Information on contact teaching time is available from the course guide.

Teaching Breakdown

More Information about Week Numbers


In light of Covid-19 and the move to blended learning delivery the assessment information advertised for second half-session courses may be subject to change. All updates for second-half session courses will be actioned in advance of the second half-session teaching starting. Please check back regularly for updates.

Summative Assessments

Exam

Assessment Type Summative Weighting 50
Assessment Weeks Feedback Weeks

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Learning Outcomes
Knowledge LevelThinking SkillOutcome
ProceduralApplyApply the theory of seismic reflection processing to process a marine seismic line with industry standard software.
ProceduralUnderstandAn understanding of the key elements of how seismic reflection data are acquired.

Essay

Assessment Type Summative Weighting 30
Assessment Weeks 27,29 Feedback Weeks 28,30

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Report on 3 Practicals on Seismic Processing

Word Count 3000
Learning Outcomes
Knowledge LevelThinking SkillOutcome
ProceduralApplyApply the theory of seismic reflection processing to process a marine seismic line with industry standard software.

Formative Assessment

Essay

Assessment Type Formative Weighting 20
Assessment Weeks 25,26 Feedback Weeks 26,27

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Feedback Word Count 2000
Learning Outcomes
Knowledge LevelThinking SkillOutcome
ProceduralUnderstandAn understanding of the key elements of how seismic reflection data are acquired.

Course Learning Outcomes

Knowledge LevelThinking SkillOutcome
ProceduralApplyApply the theory of seismic reflection processing to process a marine seismic line with industry standard software.
ProceduralUnderstandAn understanding of the key elements of how seismic reflection data are acquired.

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