CO2 Storage Analysis Module
Purpose
This module allows users to evaluate the CO2 storage potential of a reservoir as well as the pressure available CO2 storage available.
Primary Outputs
| Curve Name | Description |
|---|---|
| CO2_DENSITY | Density of CO2 at reservoir PVT |
| CCS_STORAGE_CAPACITY | Cumulative summation of CO2 Storage Capacity |
| CCS_PRESSURE_AVAILABLE_STORAGE_CAPACITY | Pressure available cumulative summation of CO2 Storage Capacity |
Discussion
The module focuses on the "Storage" component of CCUS (Carbon Capture, Utilization, and Storage). Its primary goal is to take raw well log and spatial data and transform them into a Static Storage Capacity estimate.
Before making the calculation it is important to calculate the porosity and to evaluate the irreducible water saturation.
The module typically employs the industry-standard DOE (Department of Energy) methodology for saline aquifers and depleted reservoirs. It calculates the theoretical and effective storage capacity using the following logic:
G_CO2 = A * H * PHI * RhoCO2 * E
- A: Area of the storage complex.
- H: Net thickness of the injection interval.
- PhiE: Porosity.
- Rho_CO2: Density of CO2 at reservoir temperature and pressure (calculated using built-in Equation of State models).
- E: Storage Efficiency Factor, which accounts for the fact that CO2 will not fill 100% of the pore space due to water displacement and heterogeneity.
The Pressure Available CO2 storage capability further restricts the calculation to account for when there will be pressure restrictions on further injection.
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2026 User Group Meeting
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