270-1 Basin-Scale Carbon Storage Modeling and Public Data Access in the Gulf Coastal Plain of Alabama

Session: Carbon Dioxide Storage and Mitigation of Greenhouse Gas Emissions (Posters)

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The Gulf Coastal Plain of Alabama is a region with proven geologic CO₂ storage potential. It is underlain by a structurally complex sequence of sedimentary rocks comprised of Jurassic to Upper Cretaceous strata that host thick saline reservoirs and laterally extensive seals, providing favorable conditions for secure, long-term carbon storage. For over two decades, the Geological Survey of Alabama (GSA) has conducted carbon capture and storage (CCS) assessments across Alabama, Mississippi, and the Florida Panhandle. Field tests, including the Southeast Regional Carbon Sequestration Partnership (SECARB) III Anthropogenic Test, SECARB II Plant Daniel Test, and the Citronelle Enhanced Oil Recovery Test, have demonstrated successful potential for CO₂ injection and storage in the region. The GSA and the State Oil and Gas Board of Alabama (OGB) have accumulated extensive geologic, geophysical, and infrastructure data, much of which remains locked in legacy formats and not readily accessible. Supported by the U.S. Department of Energy, the GSA is conducting the “Alabama Carbon Storage: Data Sharing and Engagement (ACS-DSE)" project to develop publicly accessible geologic carbon capture models and datasets for the Gulf Coastal Plain of Alabama. For this project, the GSA and OGB are compiling and digitizing CCS-relevant datasets, developing a basin-scale 3-D geologic model using Petra and ArcGIS, and deploying an interactive online ArcGIS platform to share subsurface data and interpretations. The datasets include over 750 digitized logs (log ASCII standard format), stratigraphic tops, core analyses, reservoir properties (e.g., porosity, permeability, salinity, pressure), and CCS-related infrastructure such as offshore platforms, pipelines, salt-water disposal wells, and property boundaries. These resources, which are available via the GSA website, support detailed site screening, characterization, and risk assessment. The ACS-DSE project strengthens Alabama’s carbon storage readiness and provides a scalable model for data transparency and stakeholder engagement across the Gulf Coast.

Geological Society of America Abstracts with Programs. Vol. 57, No. 6, 2025

doi: 10.1130/abs/2025AM-4943

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