Final Examination
Learning objectives
- Test the whole course, one question per major link
- Recall the key relationships from porosity to saturation to volumes
- Diagnose the common pitfalls that bias an interpretation
- Earn a score and a verdict to close the course
The Capstone Test
This is the end of the road. The exam below draws fifteen questions, one from each major link of the course, from the meaning of effective porosity to the probability of commercial success. Answer each one, see whether you were right and why, and read the verdict at the end. There is no time limit and you can restart as often as you like; the goal is mastery, not speed.
What a Pass Means
To answer these is to have read the Ogbon-1 well from the rock to the decision: to strip the shale, find the porosity, solve Archie for saturation, estimate permeability, set the cutoffs, and carry the volumes into a go or no-go under uncertainty. The same chain reads any well. That is the whole of formation evaluation, and with this exam behind you, it is yours.
Where to Go Next
Petrophysics feeds the reservoir model. The porosity, permeability, saturation, and net pay you now know how to read from logs are the well data that anchor the geostatistical property models of the Reservoir Modeling and Simulation course, the natural next step. The logs describe the rock; the reservoir model spreads that description through the field and forecasts how it will produce.
References
- Asquith, G. and Krygowski, D. (2004). Basic Well Log Analysis, 2nd ed. AAPG.
- Crain, E. R. Crain's Petrophysical Handbook.