Introduction to Petrophysics - Including Traditional and Reservoir Petrophysics
Introduction to Petrophysics covers fundamental petrophysical relations, with a primary focus on understanding water saturation, fluid contacts and free water level. Participants learn formation evaluation based on pore-geometry and petrophysical rock types.
Additional topics include fundamentals of core analysis, wireline log and open-hole interpretation. Applied work sessions (Excel) and participant presentations (PowerPoint) are key cornerstones that help participants gain confidence in using these methods. Several case studies are used to show the importance of integration between geology, geophysics petrophysics and reservoir engineering.
Petrophysical rock types are introduced in the 3 day version, capillary pressure and saturation height models are introduced in the 4 day version and flow units are introduced in the 5 day version.
This course can be offered as a 3, 4 or 5 day option. The course outline of proposed topiscs, provides additional details.
Typically, over 30 percent of the course is “learn by doing, which includes workshops, participant presentations and group discussions”.
Why petrophysics is important and how it is the key to building reservoir models
- An overview of how petrophysics fits into a reservoir characterization work flow
- Pre-course technical assessment
- Petrophysical properties and how they relate to static and dynamic models are discussed to show the importance of cross discipline integration (reservoir fluid properties, drive mechanism, volumetrics and recovery factors)
- Introduce the concept of using logs to identify reservoir fluids (oil, gas and water)
- Introduce a visual conceptual 3-Line log analysis technique
- Workshop - Quick Look Log Analysis
- Workshop - What is cubic packing
Why core-log integration helps improve our understanding of reservoir rocks
- Introduce Routine Core Analysis
- Porosity (total, effective includes both obvious and finer details
- Log based porosity (sonic, density, neutron and NMR Porosity)
- Core and log integration (porosity and lithology)
- Introduce the concept of petrophsyical rock types
- Workshop – Facies, initial rock types and core sampling
- Workshop - Using core data to confirm lithology and reservoir qiality
Petrophsyical rock types are relate storage and flow capacity with capillary pressure
- Introduce the ARchie Method and concept
- Determining petrophysical rock types using pore throat radius (Winland, Pittman and FZI approaches)
- “Water saturation is not an accident…..”
- Workshop - Winland petrophysical rock types
- Introduction to capillary pressure, fluid contacts and free water level
- Workshop - Capillary Pressure
- Workshop - How facies and petrophsyical rock types are used together
A practical way to understand capillary fluid contacts and free water level
- Introduce high pressure mercury injection as a pore geometry evaluation tool
- Introduce how to determine the number of petrophsyical rock types needed in a field and well
- Workshop - determine the number of petrophsyical rock type
- Workshop - discuss the various ways to average petrophsyical data
- Introduce the height above free water concept
- Workshop - Convert Lab Capillary Pressure to Height Above Free Water
- Introduce the concept of Saturation Height Modeling
- Workshop - Well Review using Petrophsyical Rock Types and Saturation Height Model (Excel)
Using Advanced Flow Units as An Integration and Well Evaluation Tool
- Introduce the concept of flow units
- Workshop - using basic flow units
- Introduce the concept of advanced flow units (determine the PRT, what units will produce water etc.)
- Workshop - Well evaluation using advanced flow units
- Special Topic 1
- Final cpurse technical assessment
- Course wrap up
This five-day course is designed for geologists, geophysicists, petrophysicists working in exploration and exploitation.
A technical degree and working knowledge of depositional systems and petroleum geology.