Fundamentals of Geologic CO2 Storage

Travis L. McLing Idaho National Laboratory\Center For Advanced Energy Studies.

RECS 2016

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Key Elements Geological Storage: Safety, and Security Strategy “ With appropriate site selection informed by available subsurface information, a monitoring program to program to detect problems, a regulatory system, system , and the appropriate use of remediation methods… methods …”

Financial Responsibility Regulatory Oversight

“… risks similar to existing activities such as natural gas storage and EOR.” “… the fraction retained is likely to exceed 99% over 1,000 years.” IPCC, 2005

Remediation Monitoring Safe Operations Storage Engineering Site Characterization









Basic Concept of Geologic Sequestration • Injected at depths of 1 km or deeper into rocks with tiny pore spaces • Primary trapping – Beneath seals of low permeability rocks



















CO 2 Density is Defined by Storage Depth • Storage below 800 m (waterhead) Supercritical CO





















Process Scales for CO 2 Geologic Storage











Required Characteristics of Geological Media Suitable for Storage of Fluids Capacity, to store the intended CO volume











Means Of CO 2 Geologic Storage





























































































































































Fundamentals of Geologic CO2 Storage

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