Processes, Год журнала: 2025, Номер 13(4), С. 1087 - 1087

Опубликована: Апрель 4, 2025

The pursuit of effective climate change mitigation strategies is driving research into geological carbon dioxide (CO2) storage. present work explores the interaction CO2 with carbonate rocks from El Abra formation in Tampico-Misantla basin, focusing on comparative influence organic matter (OM) content mineralization processes, hypothesizing that variations OM significantly modulate process affecting both rate and type formation. Expanding a previous study, studied injected under high-pressure (1350-2350 PSI) high-temperature (60–110 °C) conditions two contrasting samples: one high another low content. Structural, morphological, physical adsorption changes were evaluated through Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET) analyses. findings indicate mineralogy promotes secondary precipitation, rock–fluid interactions enhanced by brine presence. Samples exhibited dramatic reduction average particle size 13 μm to 2 μm, along metastable phases, such as vaterite—evidenced XRD peak shifting modifications FT-IR spectrum bands. Meanwhile, low-OM samples showed an increase 1.6 between 3.26 4.12 indicating predominant recrystallization. BET analysis confirmed significant porosity enhancement high-OM (up 2.918 m2/g). Therefore, plays critical role modulating mineralization, potentially enhancing storage capacity samples. These integrated demonstrate critically governs calcite dissolution, formation, microstructural evolution, providing key insights for optimizing complex reservoirs.

Язык: Английский