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E-211 - Structural Analysis & Associated Traps

  • Petroleum exploration geoscientists, multidisciplinary-team managers
  • To provide an in-depth knowledge of key elements that characterizes the structural style of a sedimentary basin
Learning Objectives
  • To identify the structural style of a petroleum area
  • To grasp issues of tectonic evolution versus petroleum system
Ways and means
  • Interactive course
  • Workshop on real case studies

Plate tectonics and coeval structural styles
  • Earth structure and global dynamics
  • Extensional regimes: from continental breakup to oceanic accretion
  • Compressional regime at plate boundaries: accretionary prisms and foreland fold-and-thrust belts
  • Oblique convergence and strain partitioning
Extensional and compressional deformations and coeval structural traps
  • Rifting and development of extensional traps (field - seismic examples and analog modeling)
  • Foreland inversion features and related traps (field - seismic examples and analog modeling)
  • Salt tectonics and related traps: geometries and case studies (seismic data and analog modeling)
  • Wrench faulting and related traps
  • Mobile belt: quantitative analysis of uplifts and erosions and dynamics of thrust propagation
  • Regional case studies and relations with petroleum system
Relationship between geological structure and sedimentary processes
  • Geodynamic controls on sedimentation
  • Synrift sedimentation and its tectonic-paleo-environmental controls
  • Passive margin development and its eustatic-geodynamic controls
  • Synflexural sedimentation in foreland-foredeep areas
  • Syntectonic (syn-kinematic) sedimentation in foothills areas
  • Fore-arc and back-arc volcano-clastic sedimentation
Exploration and development problems associated with structural styles
  • Overall distribution of fractures as a result of paleo-stress and present-day direction of principal stress
  • Folding mechanisms and styles, impact on fractures distribution
  • Faults acting as conducts or seals
  • Drainage areas, migration pathways and timing of petroleum systems
  • Seal efficiency and time of residence of hydrocarbons in structural traps
Synthesis and conclusion