Geostatistical Simulations for Reservoir Characterization

3 days

• November 17-19, 2008 « Register
  Lecturer: Jacques Deraisme
  Price: 1650 € (Euros)
  Venue: Geovariances premises
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OBJECTIVE

To provide an in-depth review of stochastic modeling methods for simulating geological facies. The course specifically addresses issues of reservoir characterization.

KEY FEATURES

Most commonly used methods are presented and their pros and cons discussed: indicator methods, truncated / pluri-gaussian, object based simulations. Most attention is paid to the analysis of proportion curves and the role played by the stratigraphic reference surface. The different steps to carry out for a 3D modeling of reservoir facies with truncated /pluri- gaussian method are practiced on real data.

WHO SHOULD ATTEND

Geologists, geophysicists and reservoir engineers involved in reservoir characterization, volumetrics or reservoir simulations. Participants should have a good knowledge of basic geostatistics (variograms, kriging).

COURSE CONTENT

• Why simulations: limitations of the use of kriging, importance of modeling heterogeneities for simulating reservoir production.
• General overview of simulation methods for categorical variables, like litho-facies.
• Statistical and geostatistical analysis of the facies variability: reference surfaces, proportion curves.
• How to account for a lateral non stationarity.
• Variographic analysis of indicators.
• Conditional simulations of categorical variables: truncated gaussian method, indicator simulation, Boolean simulations.
• Extension of the truncated Gaussian concepts to pluri-gaussian, definition of transition schemes.

Half of the course is dedicated to practical computer exercices, using Isatis, that reinforce the understanding of the theoretical notions.