This repository contains Jupyter notebooks used for teaching the lecture TPG4170 - Reservoir Seismics at NTNU. See Course Page for more info.
For Newbies to Python and Jupyter notebook, Annaconda are recommanded to run the notebook. Check this Video and see how to install Annaconda and get Jupyter to run in minutes.
Basic python installation and Scipy are needed.
For Questions and suggestions regarding the code and content please submit to Issues
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Here is an overview of the course content:
Contents
01：Critical porosity model and Gassmann Fluid substitution:
- Nur's cirtical porosity model
- Gassmann's relations (GS)
- Assumptions and lmitations of GS
02：Effective Elastic Media: Bounds:
- Voigt and Reuss Bounds
- Voigt–Reuss–Hill Average Moduli Estimate
- Hashin-Shtrikmann bounds
- In comparision to Nur's cirtical porosity model
03: Effective Medium (EM) theory 1: Inclusion models:
- Non-interacting EM model with spherical pores
- Self-Consistent(SC) EM model with spherical pores
- Non-interacting crack model
- Self-consistent crack model
- The assumption and limitation of these models
04: Effective Medium (EM) theory 2: Contact models :
- Hertz-Mindlin approach
- Reduced shear factor
- Walton's model
- Assumptions and limitations of each model
05：Fluid parameter estimation:
- Batzle and Wang fluid parameter estimation
06: Anisotropy:
- Thomsen parameters
- Weak anistropic approximation of phase velocities
- Backus averaging
07: Quartz cementation modelling:
- Modelling porosity loss due to mechanical compaction
- Modelling porosity loss due to quartz cementation
08: Soft-Sand, Stiff-Sand and Cemented sand models :
- Soft-sand model
- Stiff-sand model
- Contact cement model
- Constant cement model
- Increasing cement model
- Rock physics diagnostic approach
09：Shaly Sand modeling:
- Thomas–Stieber Model for Sand–Shale Systems
- Net-to-gross ratio
- Dvorkin–Gutierrez Elastic Model
10: Rock Physics Template (RPT):
- Rock physics template created from different models
11: Differential Effective Medium (DEM):
- Berrymann's differential effective medium formulation
12: Amplitute versus Offset (AVO):
- Zeoppritz Equation
- Aki-Richard approximation to Zeoppritz Equation
- Intercept and gradient