Introduction to Petrophysics
Course description
The course will introduce the participants to the basis of logging tool configurations and logging operations as well as basic well log interpretation and/or Formation Evaluation, which is a key discipline in petroleum exploration and production.
The course is designed for:
- Exploration Geologists
- Production Geologists
- Well-site Geologists
- Operations Geologists
- Well Data Managers
- Geophysicists
- Petrophysicists
- Geotechnicians
Learning objectives
- To undergo a review of the logging tools and measurements made by the logging tools, and the transformation of the measured data into useful reservoir parameters such as porosity, permeability, water saturation and reserve estimations.
- To understand the link between Petrophysics and seismic interpretation, seismic reservoir characterisation and Reservoir Modelling.
Course outline
Basic interpretation methods
Clay / Shale type determination
Volume of Shale (Vsh) & Volume of Clay (Vcl) from GR, FDC, CNL logs
Porosity from Sonic, Density & Neutron
Water saturation (Sw) from Resistivity
Water saturation from SP logs
Pitfalls of Formation Evaluation
Permeable zones (qualitative interpretation)
Combined determination of porosity and rock composition
Logging charts
Cross-plot methods
Introduction shaly-sand interpretation
Fractured reservoir characterisation
Saturation determination
Movable fluids determination
Permeability Estimation
Thin-bed Evaluation
Introduction and review of logging methods and tools
Petrophysical properties of reservoir rocks
Reservoir rocks and types
Porosity ranges
Permeability (absolute, relative)
Capillary pressure (Pc)
Archie method
Dual-water method
Fundamentals of Formation Evaluation
The borehole and its environment
Open-hole logging methods
Cased-hole logging methods
Electric and electromagnetic methods
Spontaneous Potential (SP logs)
Sonic, Density & Nuclear methods
LWD and MWD techniques
Dip Meter methods
Gamma Ray (GR methods)
Coring and core investigations
Core-to-log data integration
Dipmeter Reservoir characterisation
Gamma Ray (GR) methods
Coring and core investigations
Reservoir characterisation
"The course was conducted with good communication and interaction between the instructor and participants."
- NCOC, Kazakhstan
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