Formation Evaluation

🔹 Day 1: Introduction to Log Types and Principles

• 09:00–09:45: Course overview and importance of well logs

• 09:45–10:30: Classification: open-hole vs. cased-hole logs

• 10:30–10:45: ☕ Coffee Break

• 10:45–11:30: Gamma Ray (GR) and SP logs – principles and usage

• 11:30–12:15: Resistivity logs: LLD, LLS, MSFL – how to read and interpret

• 12:15–13:15: 🍽️ Lunch Break

• 13:15–14:00: Density, neutron, and sonic logs: rock property indicators

• 14:00–14:45: Caliper and borehole effects on log quality

• 14:45–15:00: Recap and Q&A

🔹 Day 2: Lithology and Shale Volume Estimation

• 09:00–09:45: GR response for lithology identification

• 09:45–10:30: Lithology interpretation using density-neutron crossplots

• 10:30–10:45: ☕ Coffee Break

• 10:45–11:30: Clay indicators and SP log in shaly formations

• 11:30–12:15: Vshale calculations from GR and cross-checking methods

• 12:15–13:15: 🍽️ Lunch Break

• 13:15–14:00: Lithology identification from multi-log overlays

• 14:00–14:45: Exercises using real log data

• 14:45–15:00: Recap and Q&A

🔹 Day 3: Porosity and Fluid Analysis

• 09:00–09:45: Effective vs. total porosity concepts

• 09:45–10:30: Neutron-density crossplot porosity calculation

• 10:30–10:45: ☕ Coffee Break

• 10:45–11:30: Sonic-derived porosity and lithology correction

• 11:30–12:15: Gas effect on porosity logs and separation indicators

• 12:15–13:15: 🍽️ Lunch Break

• 13:15–14:00: Water saturation (Sw) using Archie’s equation

• 14:00–14:45: Interpreting hydrocarbon indicators (e.g., crossover)

• 14:45–15:00: Recap and Q&A

🔹 Day 4: Crossplots, Cutoffs, and Net Pay

• 09:00–09:45: Crossplot methods: litho-fluid classification

• 09:45–10:30: Core vs. log calibration for porosity/permeability

• 10:30–10:45: ☕ Coffee Break

• 10:45–11:30: Defining log cutoffs: GR, porosity, Sw

• 11:30–12:15: Net reservoir and net pay calculations

• 12:15–13:15: 🍽️ Lunch Break

• 13:15–14:00: Case study: carbonate vs. clastic interpretation

• 14:00–14:45: Hands-on log analysis for pay zone identification

• 14:45–15:00: Recap and Q&A

🔹 Day 5: Integrated Interpretation and Case Study

• 09:00–09:45: Overview of integrated workflow

• 09:45–10:30: Group exercise: identify lithology, porosity, fluids

• 10:30–10:45: ☕ Coffee Break

• 10:45–11:30: Constructing a log-based reservoir model

• 11:30–12:15: Comparing log interpretation to core and test data

• 12:15–13:15: 🍽️ Lunch Break

• 13:15–14:00: Group presentations and peer review

• 14:00–14:45: Summary of interpretation challenges and solutions

• 14:45–15:00: Final Q&A and certificates