World-class training for the modern energy industry

An Introduction to Sequence Stratigraphy (G068)

  • TypeType: Classroom, Virtual
  • TypeDiscipline: Basin Analysis, Depositional Systems
  • TypeDuration: 2 days

Tutor(s)

Gary Hampson: Imperial College London

Overview

Sequence stratigraphy is a key tool for subsurface interpretation of depositional systems and thereby predicting the distribution of reservoir, source rock and seal lithologies. The course will introduce the principles and methods of sequence stratigraphy, with a focus on continental, shallow-marine and deep-marine depositional settings. Participants will apply these principles and methods via the sequence stratigraphic interpretation of subsurface data (e.g. seismic, well-log, core, reservoir production data).

Duration and Logistics

Classroom version: 2 days including a mix of lectures and exercises. The course manual will be provided in digital format and participants will be required to bring along a laptop or tablet to follow the lectures and exercises.

Online version: Three 3.5-hour interactive online sessions presented over 3 days (afternoons in Europe and mornings in North America). A digital manual will be distributed to participants before the course.

Level and Audience

Fundamental. This course is designed for junior geoscientists working on a variety of subsurface energy projects who want to gain a basic understanding of sequence stratigraphy and its applications to subsurface data sets. Participants should have knowledge of basic sedimentology and subsurface geology.

Objectives

You will learn to:

  1. Understand the basic terminology of sequence stratigraphy.
  2. Describe the key surfaces and systems tracts.
  3. Appreciate the main components of depositional sequences in continental, shallow-marine and deep-marine systems.
  4. Evaluate a range of subsurface data in terms of sequence stratigraphic methods and models.

Course Content

Session 1: Key concepts and terminology

  • Introduction to stratigraphy
  • Lithostratigraphy and chronostratigraphy
  • Sequence stratigraphy controls and concepts
    • Accommodation / Relative sea level
    • Sediment supply
    • Regression vs. transgression
  • Sequence stratigraphy terminology
    • Key definitions
    • Formation of parasequences
    • Transgressive surfaces
    • Parasequence stacking patterns
    • Forced regressions
    • Incised valleys
    • Sequence boundaries
    • Interfluves
    • Shoreline trajectory
  • Exercise on identifying stratal patterns and key surfaces

Session 2: Exploration-scale applications

  • Depositional sequences
  • Seismic analysis
  • Well-log analysis
  • Application to exploration plays
  • Exercise on passive-margin exploration plays

Session 3: Reservoir-scale applications

  • Application to shallow-marine reservoirs
  • Exercise on continental and shallow-marine reservoirs
  • Application to deep-marine reservoirs
  • Exercise on deep-marine reservoirs
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