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E-352 - Core Analysis for Reservoir Characterization

  • Reservoir engineers, petroleum engineers and experienced technicians willing to deepen their knowledge in petrophysics and core analysis.
  • This course provides information on how rock properties impact the reservoir description and the flow dynamics and how to get them from core analysis.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • explain and discuss the use of petrophysical properties for reservoir static and dynamic description,
  • describe and explain how rock properties are obtained from core analysis,
  • describe laboratory equipment, data acquisition and data processing for each property measurement.
  • No prerequisites for this course.
Ways and means
  • Hands-on practice through real lab experiments carried out during the training.
  • CYDAR™ software is used to design and interpret the experiments and to perform additional exercises.

Introduction – Coring & core analysis 0.5 day
  • Reservoir characterization and role of core analysis.
  • Methods for coring. Core preservation, cleaning and analysis.
  • Conventional and special core analysis (CCA and SCAL).
Generalities on two-phase flow properties 1 day
  • Darcy's law for two-phase flows core analysis.
  • Relative permeabilities: capillarity, capillary pressure, wettability.
  • Effect of petrophysical properties on fluid displacements, importance of wettability on Pc, Kr, RI.
Conventional core analysis 1.5 days
  • Porosity: definition and measurements (effective and total porosity).
  • Pore size distribution by NMR and mercury injection.
  • Permeability: definition, measurements, liquid and gas permeability, Klinkenberg corrections.
  • Porosity/permeability correlations.
  • Formation Factor and Resistivity Index (RI).
  • From lab to reservoir: use of Pc to determine reservoir initial saturation and transition zones.
Special core analysis 1.5 days
  • Measurement of wettability: Amott index, USBM.
  • Measurements of capillary pressure:
  • Porous plates, centrifuge: interpretation, existence of local saturation.
  • Measurement of relative permeabilities:
  • Steady-state, unsteady-state, in-situ saturation monitoring, interpretations.
Petrophysical rock typing 0.5 day
  • Synthesis of petrophysical data.
  • Leverett functions, exercises.