Petrophysical Analysis of Shaly Sands
This course focuses on the challenges of evaluating shaly sand reservoirs, including distinguishing clay-bound water, using appropriate models for effective porosity and water saturation, and integrating core data with logs for accurate net pay estimation. 🗓️ Day 1: Introduction & …
Overview
This course focuses on the challenges of evaluating shaly sand reservoirs, including distinguishing clay-bound water, using appropriate models for effective porosity and water saturation, and integrating core data with logs for accurate net pay estimation.
🗓️ Day 1: Introduction & Clay Types
| Time | Topic |
|---|---|
| 08:30 – 09:00 | Course objectives and overview of shaly sand issues |
| 09:00 – 10:30 | Types of clays: kaolinite, illite, smectite, chlorite |
| 10:30 – 10:45 | ☕ Coffee Break |
| 10:45 – 12:15 | Distribution of clays: laminated, structural, dispersed |
| 12:15 – 13:15 | 🍽 Lunch Break |
| 13:15 – 14:45 | Introduction to effective vs. total porosity |
| 14:45 – 15:00 | ☕ Coffee Break |
| 15:00 – 16:30 | Exercise: clay identification on well logs |
🗓️ Day 2: Shale Indicators
| Time | Topic |
|---|---|
| 08:30 – 10:00 | SP, GR, neutron-density separation, spectral GR |
| 10:00 – 10:15 | ☕ Coffee Break |
| 10:15 – 12:15 | Volume of shale (Vsh) estimation techniques |
| 12:15 – 13:15 | 🍽 Lunch Break |
| 13:15 – 14:45 | Crossplots for shaly sand interpretation |
| 14:45 – 15:00 | ☕ Coffee Break |
| 15:00 – 16:30 | Exercise: Vsh calculations using different methods |
🗓️ Day 3: Shaly Sand Saturation Models
| Time | Topic |
|---|---|
| 08:30 – 10:00 | Archie’s equation limitations in shaly sands |
| 10:00 – 10:15 | ☕ Coffee Break |
| 10:15 – 12:15 | Dual water & Waxman-Smits models |
| 12:15 – 13:15 | 🍽 Lunch Break |
| 13:15 – 14:45 | Indonesian & Simandoux models |
| 14:45 – 15:00 | ☕ Coffee Break |
| 15:00 – 16:30 | Exercise: comparing Sw from different models |
🗓️ Day 4: Net Pay in Shaly Sands
| Time | Topic |
|---|---|
| 08:30 – 10:00 | Defining cutoffs for porosity, Vsh, Sw |
| 10:00 – 10:15 | ☕ Coffee Break |
| 10:15 – 12:15 | Net-to-gross calculations |
| 12:15 – 13:15 | 🍽 Lunch Break |
| 13:15 – 14:45 | Sensitivity analysis on cutoff selection |
| 14:45 – 15:00 | ☕ Coffee Break |
| 15:00 – 16:30 | Exercise: net pay determination on case study |
🗓️ Day 5: Integration & Practical Applications
| Time | Topic |
|---|---|
| 08:30 – 10:00 | Combining core, SCAL, and logs |
| 10:00 – 10:15 | ☕ Coffee Break |
| 10:15 – 12:15 | Final exercise: shaly sand reservoir interpretation |
| 12:15 – 13:15 | 🍽 Lunch Break |
| 13:15 – 14:45 | Group presentations of results |
| 14:45 – 15:00 | ☕ Coffee Break |
| 15:00 – 16:30 | Review, Q&A, and wrap-up |
Target audiences
- Reservoir Engineers, Geologists
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Course Features
- Lecture 0
- Quiz 0
- Duration 5 days
- Skill level All levels
- Language English
- Students 40
- Assessments Yes