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Sequence Stratigraphy - SQS
Geology
Foundation

WHO SHOULD ATTEND?


Geologists, geophysicists, biostratigraphers and engineers (with some knowledge of geology) needing a fundamental understanding of the principles and applications of sequence stratigraphy.

COURSE DESCRIPTION


Sequence stratigraphy, based on sedimentary response to changes in relative sea level gives the explorationist and the development geoscientist a powerful new predictive tool for regional basin analysis, shelf to basin correlation and reservoir heterogeneity. Perhaps most importantly, sequence stratigraphy gives the geoscientist a superior framework for the integration of geologic, geophysical and engineering data and expertise.

We will develop the basic concepts of sequence stratigraphy such as the integration of eustasy and tectonic subsidence which gives rise to the basic cycle hierarchy that can be observed in the geologic record. Using these basic concepts we will build a general predictive stratigraphic model emphasizing the petroleum system and particularly stressing shelf to basin correlation.

The particular strength of this seminar is the application of these basic principles to actual subsurface data sets gathered into a series of well-founded exercises. In recent courses the data sets included Miocene delta complexes in Venezuela Cretaceous incised valleys in the US, Paleozoic mixed carbonate clastic basin floor fans and low stand prograding complexes in the US and Jurassic basin floor and slope fans in France.

LEARNING OBJECTIVES


At the end of the workshop the participants will able to

  • Identify stratigraphic sequences
  • Interpret seismic reflection geometries
  • Relate sequence stratigraphy to basin architecture, relative sea levels and history
  • Build predictive stratigraphic model

COURSE CONTENT

Historical framework
Seismic geometries
Unconformities
Relative sea level
Eustasy
Parasequences and their stacking patterns
Parasequences as a correlation tool
Relationship of stratigraphic patterns to changes in subsidence rates
Cycle hierarchy
World-wide cycle chart and its application
The sequence stratigraphic model
LST sequence boundaries, diagenesis related to unconformities, incised valleys, slope fans, basin floor fans and prograding
TST incised valley fill, two phase sedimentation pattern, source rock and reservoir seal illustrated by slide presentation and individual exercises
HST alluvial, deltaic, shoreline complexes and shelf sands illustrated by slide presentation and individual exercises
Exploration and production scaled case histories and strategies