RokDoc Ji-Fi

2 Day Course
RokDoc Ji-Fi (Joint Impedance & Facies Inversion) is our most innovative inversion technology. This course takes you through a detailed workflow; starting from the generation of facies logs to running the inversion and QC of the results, so you fully cover all its extensive capabilities. As well as learning how to drive the software, all relevant underlying principles are discussed, and results reviewed.

This course is intended for advanced RokDoc 3D users, and as such it is highly recommended that our RokDoc Rock Physics course is attended first. Attendees will also greatly benefit from having been on our RokDoc Reservoir Characterisation course as well.

Topics covered:
  • Overview of inversion principles, methods and application
  • Overview of the Ji-Fi algorithm and workflow
  • Inversion feasibility for facies based inversion
  • Application of the Joint Inversion to real data
Detailed Course Overview
Ji-Fi Workflow and Philosophy
Log Based Fluid Substitution and Upscaling
Facies Models and Elastic Facies Associations

Cut-offs for facies generation

  • Facies generation
Depth Trend Analysis
  • Rock Properties Varying Laterally
  • Rock Properties Varying with Depth
  • Importance of QC depth trends errors and their effect on the construction of PDFs
Log Based Bayesian Classification
Setting Up the Inversion Algorithm
Inversion QC and Analysis
  • Ji-Fi QC Outputs Panel
  • QC Output Quantities
  • QC Residual Quantities
  • Filter Quantities
  • Invert Around Wells
  • Spectra Plot
  • Calculate Inversion Button
  • Facies QC Plot (Posterior) Button
  • Outputs panel
  • Joint Impedance Facies Inversion Progress Dialog
  • Computing Property Maps from the Horizon Toolbox
Suggested QC Steps During Pre-stack Inversion

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