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E-241C - Advanced Multivariate Geostatistics Certification

E-241C - Advanced Multivariate Geostatistics Certification

5 days
GRE/GEOSTAT
Sessions
This course is not scheduled.
Who should attend?

Audience

    • Experienced geoscientists involved in data interpretation and management.
    • Recommended for geologists, geophysicists and reservoir engineers involved in integrated reservoir studies.

Level

  • Advanced
  • This course provides participants with a comprehensive technical knowledge and to get familiar with geostatistical methods used in Geophysics, Reservoir Characterization and Modeling studies.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • acquire a practical approach to the industrial methodology of reservoir characterization and modeling, in particular with geostatistical tools and methods,
  • use geostatistical tools and methods (variograms, kriging, cokriging, external drift, simulations),
  • use geostatistical methods for seismic data filtering and Time-to-Depth conversion,
  • use geostatistical methods for enhancing classification for ElectroFacies determination,
  • choose ways for property simulations using geostatistical algorithms: facies (pixel and object methods); petrophysics (gaussian methods),
  • constrain 2D or 3D properties distribution using various information (e.g. geology, seismic and dynamic data) of different nature and accuracy,
  • use industrial software dedicated for geostatistics.
Course Content

MULTIVARIATE DATA ANALYSIS

1 day

  • Statistics: distributions, mean, variance, correlation coefficient, linear regression.
  • Multivariate statistical analysis: PCA, Min-Max autocorrelation factor.
  • Variograms and cross-variogram: the linear model of coregionalization.

COKRIGING & ITS VARIATIONS

1 day

  • Kriging theory: building the kriging system of equations, kriging weights behavior, cross-validation.
  • Generalization of kriging to the multivariate case: cokriging.
  • Particular case of collocated cokriging.

KRIGING WITH AUXILIARY VARIABLES

0.5 day

  • Kriging with trend: universal kriging formalism.
  • Kriging with external drift.
  • Comparison between collocated cokriging and kriging with external drift.
  • Kriging with Bayesian drift.
  • Kriging with fuzzy data.

GEOSTATISTICS & CLASSIFICATION

0.5 day

  • Clustering methods for ElectroFacies calculation.
  • Enhancing clustering by integrating spatial constraints.
  • Pitfalls in ElectroFacies calculation and characterization.

FACTORIAL KRIGING & FACTORIAL COKRIGING

1 day

  • Multi-components variograms (univariate and multivariate cases).
  • Factorial kriging theory.
  • Application to data filtering.
  • Seismic filtering with multiple acquisitions.

GEOSTATISTICAL SIMULATIONS IN THE MULTIVARIATE CASE

0.5 day

  • Reminder about geostatistical simulations, comparison with kriging.
  • Theoretical overview of co-simulations of continuous variables.
  • A multivariate facies simulation method: truncated Pluri-Gaussian Simulations (PGS).
  • Complex sedimentary patterns modeling with PGS.

SUMMARY & TEST

0.5 day

  • Summary of the studied methods and their applications: Q&A session.
  • Final examination.
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Ways & Means
  • Lectures and hands-on activities. Practical examples and laboratory exercises will be performed using dedicated software Isatis™.
Certification
  • Une reconnaissance au niveau international.
  • L’obtention d’un Advanced Certificate.
  • Une expertise confirmée E-241C - Advanced Multivariate Geostatistics Certification.
  • Des compétences applicables en milieu professionnel.