CO2 Static Containment Evaluation (CCS/CCUS Academy)

Session 1 – Introduction and Overview

• Introduction of the course
• Overview of the Illinois Basin geology
• Summary of the main elements and associated risks in caprocks and fault seals
• Overview of the caprocks geometry interpretation, fracture and fault interpretation, and fault seal analysis workflow in Petrel
• Pre-assessment

Session 2 – Caprocks Geometry interpretation

• The key Uniqueness's of CCS/CCUS subsurface characterization in caprock integrity and fault seal evaluation 
• Caprock effectiveness: thickness and lithology analysis
• Practical exercises in Petrel – analyze caprock lithology from well logs, make depth maps and isochore/isopach maps

Session 3 – Caprocks 3D Property Modeling

• Overview of the geological modeling workflow (structural model and property model) under the context of CCS
• Practical exercises on building a structural model and property models porosity in Petrel

Session 4 – Caprocks integrity and Sealing Capacity

• Caprock capillary sealing capacity
• Caprocks integrity: faults and fractures interpretation
• Practical exercises in Petrel - Building a fracture model from Discrete Fracture Network (DFN)

Session 5 – Fault Seal Analysis (I)

• Introduction to fault seal and trap analysis
• Fault throw analysis, juxtaposition mapping
• Practical exercises in Petrel – Construct 1D/3D fault juxtaposition analysis, fault throw/displacement analysis

Session 6 – Fault Seal Analysis (II)

• Fault clay content prediction – shale gouge ratio and clay smear factor along faults
• Sealing capacity calculation – fault threshold pressure, fluid column height analysis
• Fault compartmentalization – find the leaking points on fault seals
• Practical exercises in Petrel – calculate shale gouge ratio, clay smear potential, and estimate fault sealing capacity

Session 7 – Fault Seal Analysis (III)

• Fault transmissibility and transmissibility multiplier calculation
• Practical exercises in Petrel – calculate fault permeability, fault thickness, fault transmissibility, and transmissibility multiplier

Session 8 – Integrated Evaluation (I)

• CO2 storage capacity assessment methodologies
• Pore volume estimation and storage capacity estimation
• Uncertainty in storage capacity estimation
• Practical exercises in Petrel – storage capacity estimation and capacity uncertainty analysis

Session 9 – Integrated Evaluation (II)

• Integrated risk analysis using play chance mapping
• Practical exercises in Petrel

Session 10 – Group Presentation and Summary

• Group presentation
• Main takeaways (Technical and operational perspectives)
• Assessment
• Q&A