CO₂ Storage Capacity in the Subsurface of the Manzano Block, Magallanes Region, Chile

Conference Paper

Danilo Gonzalez, Álvaro Pérez-Pérez
November 2023XVI Congreso Geológico Chileno, 2023

Cite

APA Click to copy
Gonzalez, D., & Pérez-Pérez, Á. (2023). CO₂ Storage Capacity in the Subsurface of the Manzano Block, Magallanes Region, Chile. In November 2023XVI Congreso Geológico Chileno.

Chicago/Turabian Click to copy
Gonzalez, Danilo, and Álvaro Pérez-Pérez. “CO₂ Storage Capacity in the Subsurface of the Manzano Block, Magallanes Region, Chile.” In November 2023XVI Congreso Geológico Chileno, 2023.

MLA Click to copy
Gonzalez, Danilo, and Álvaro Pérez-Pérez. “CO₂ Storage Capacity in the Subsurface of the Manzano Block, Magallanes Region, Chile.” November 2023XVI Congreso Geológico Chileno, 2023.

BibTeX Click to copy

@conference{danilo2023a,
  title = {CO₂ Storage Capacity in the Subsurface of the Manzano Block, Magallanes Region, Chile},
  year = {2023},
  author = {Gonzalez, Danilo and Pérez-Pérez, Álvaro},
  booktitle = {November 2023XVI Congreso Geológico Chileno}
}

Abstract

Geological carbon capture and storage (CCS) is an emerging technique that captures CO₂ emissions from industrial sources, transports them, and injects them into deep subsurface formations for long-term containment. This study presents a preliminary assessment of the CO₂ storage capacity in an area of 2,180 km² located north of Punta Arenas, within the Magallanes Basin. Using stratigraphic, well, and subsurface data from ENAP’s exploration database, the study identifies two main storage targets: deep saline aquifers and coal seams. Sandstones of the Upper Eocene Loreto Formation show favorable reservoir properties, with average porosity of 19% and net sand thicknesses around 200 m, suitable for CO₂ injection in supercritical state below 750 m depth. Coal seams from the Loreto and El Salto formations also present potential as CO₂ sinks through methane displacement and adsorption mechanisms. The estimated storage capacity exceeds 900 Mt of CO₂ in saline aquifers and 58 Mt in coal beds, demonstrating the significant potential of the Magallanes Basin for geological CO₂ sequestration and its relevance to Chile’s national climate strategy