RokDoc Rock Physics - 3 Days Course

September 03 - 05, 2024

Course Outline:

This 3-day course is intended for new and intermediate users who require an introduction to RokDoc and the rock physics theories behind the software.

The course provides an overview of using RokDoc software for rock physics workflows and analysis.

Delegates are guided through a typical RokDoc workflow, comprising data loading and QC, predicting missing data with calibrated rock physics models, blocky modelling, log-based rock physics analysis and 2D forward modelling.

The course will cover Gassmann dry rock modelling, elastic log analysis, cross-plotting and well ties. Further analysis is then performed in RokDoc 2D to determine the effects of seismic tuning, fluid substitutions, porosity perturbation and noise.

After successfully completing the course, the student should have:

  • Learned how to use the software (and modules) efficiently and effectively to run similar workflows as the ones in the course.
  • Gained insights on rock physics workflows, data editing, predicting missing data and 2D forward modelling.
Course Location
Show Course Outline
What is RokDoc & an introduction to Rock Physics
  • What is Rock Physics?
  • A RokDoc Workflow
Workflow 1 – Project Management
  • File management
  • Configuring RokDoc
  • Global Settings
  • User Settings
  • Shortcuts
  • Plugins
  • Project level data
Workflow 2 – Creating Fluid Sets
  • Calculating fluid properties
Workflow 3 – Importing Well Data
  • LAS loading
  • Log Data
  • Markers
  • Deviation surveys
  • Checkshots
  • Discrete data
  • Importing data from RokDoc projects
Workflow 4 – Well Viewer
  • Launching the Well Viewer
  • Configuring the display
  • Right-click options
  • Color Fills
  • Working Intervals
  • Creating and using well Views
Workflow 5 – Domain Transforms
  • TVD to TWT conversions
  • QC’ing the depth-time curve
Workflow 6 - Cross-plotting
  • Launching the Cross-plotter
  • Overlays
  • Polygons
  • Data QC in cross plotter
  • Calibrating trend lines and rock physics models
Rock physics essentials
  • Data acquisition
  • Seismic essentials
  • Elastic properties and moduli
  • Density and Vs prediction
Workflow 7 – Vs Prediction
  • Creating Volume Fraction Sets - Minerals
  • Creating Saturation Sets - Fluids
  • Vs Prediction- Greenberg Castagna
  • Vp-Vs-Rho Sets
  • Case study
Workflow 8 – RHOB Prediction
  • Rho prediction - The Gardner Model
  • Vp-Vs-Rho Sets
Introduction to the Log Calculator
  • Basic functionality
Introduction to the User Programmer
  • Writing and running programs
Workflow 9 – Deriving Averages
  • Deriving averages for use in single interface models and mineral sets
  • Using working intervals and cut-offs to derive averages
Workflow 10 – Blocky Operations – AVO and Gassmann
  • Principles of AVO
  • Blocky AVO single-interface models
  • Gassmann Fluid Substitution
  • Fluid and mineral mixing
  • Elastic Bounds
  • Limitations
  • Performing blocky fluid substitutions in RokDoc
Workflow 11 – Log Fluid Substitution
  • Log Operations
  • Fluid Substitution
  • Shaley Sand Gassmann
  • Dry Rock Modeling
Workflow 12 – Loading and Viewing Seismic Data
  • Importing SEG-Y volumes
  • Importing horizon data
  • Inline and Crossline Viewers
  • Viewing time slices
Workflow 13 – Synthetic Gathers, Log Elastic Properties and Log Filtering
  • Backus Averaging
  • Creating a statistical wavelet
  • Synthetic gather generation
  • Gather manipulation
  • Gather Analysis
  • Log elastic properties
  • Angle dependent properties
  • Angle independent properties
  • Log Filtering
Workflow 14 – Advanced Cross-plotting
  • Matrix cross-plotting
  • Single-well and multi-well cross-plotting
  • Trend Lines and Overlays
  • Histogram Plot
  • Rose Diagram
  • Inversion Feasibility studies
  • Weighted stack cross-plotting
Workflow 15 – Wavelet Estimation
  • Defining wavelet estimation inputs
  • Extracting deterministic wavelets
  • Wavelet QC and editing
Introduction to RokDoc 2D
  • Resolution, interference and tuning
  • Bright, flat and dim spots
  • Navigating in RokDoc 2D
Workflow 16 – Tuning Model
  • Creating a Simple Tuning Wedge
  • Creating and filling bodies
  • Manipulating model parameters
  • Measuring attributes
  • Changing body properties
Workflow 17 – One Well Layer Cake Model
  • Creating a Simple Layer Cake Model
  • Left-to-right Filtering
  • Fluid Substitution
  • Porosity Perturbation
  • Calculators
  • Adding Noise
  • Creating pseudo-wells
Workflow 18 – Model from Seismic
  • Bringing Seismic into RokDoc 2D
  • Creating and editing horizons
  • Bulk shifts, stretch and squeeze
  • Measuring attributes
  • Bayesian Classification
  • Weighted Stack Projections
Workflow 19 – Multi-Well Model from Seismic Backdrop
  • Building the model
  • Using more than one well
  • Importing backdrops
  • Re-positioning wells and markers
  • Digitizing geologically consistent events
  • Perturbing the model
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1. Ikon Science shall provide, at its cost, comprehensive training course materials comprising PowerPoint slides, worksheets, trainer notes and case notes as required for the relevant Ikon Science training course described above (the “Course”) and in sufficient numbers for all attending participants (the “Materials”). Such Materials are to include exercises and case studies as well as a selection of relevant articles (where available) that may be of use to facilitate further understanding of the subject matter.

2. The individual attending the training course (the “Attendee”) acknowledges and agrees that all intellectual property in the Materials belongs exclusively to Ikon Science or third party providers thereof (where applicable) and the Individual shall not acquire any express of implied interest therein. The Attendee shall not (i) copy or otherwise reproduce the Materials, (ii) use the Materials for commercial purposes or otherwise than for the direct purpose of completing the Course, or (iii) sell, lease, transfer, publish or otherwise make available or disclose the Materials or any part thereof (whether orally, in writing or in electronic form) to any third party (including any other person, company or any employee, officer or agent of the Attendee.

3. Ikon Science shall provide one (1) suitably skilled and experienced trainer who shall deliver the Course in a professional manner and otherwise in accordance with the objectives, target audience and outline set out in this letter.

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5. This contract for the provision of training is governed by English law and subject to the exclusive jurisdiction of the courts of England & Wales.

6. In the event that the Company issues a purchase order to Ikon Science which relates to training for a specified number of Company personnel in the use of Ikon Science software as specified therein, Ikon Science hereby grants to Company a non-exclusive, non-transferable licence for each such personnel to use the relevant software (“Training Licence”) provided by Ikon Science in connection with the such training (“Training Licence”) solely for such training purposes and for no commercial or other purposes whatsoever. Training Licence shall be installed by Company on such equipment as Ikon Science shall specify and, unless otherwise agreed in writing, each Training Licence shall expire seven days after its date of issuance. Save as aforesaid, Ikon Science’s standard software licenceterms which are not inconsistent with the terms of this paragraph shall apply to all Training Licences granted hereunder.

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