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
