Geological storage of captured carbon dioxide as a large‐scale carbon mitigation option

Abstract

Carbon capture and storage (CCS), involves capture of CO2 emissions from power plants and other large stationary sources and subsequent injection of the captured CO2 into deep geological formations. This is the only technology currently available that allows continued use of fossil fuels while simultaneously reducing emissions of CO2 to the atmosphere. Although the subsurface injection and subsequent migration of large amounts of CO2 involve a number of challenges, many decades of research in the earth sciences, focused on fluid movement in porous rocks, provides a strong foundation on which to analyze the system. These analyses indicate that environmental risks associated with large CO2 injections appear to be manageable.

Chemo‐mechanical Alterations Induced From CO2 Injection in Carbonate‐Cemented Sandstone: An Experimental Study at 71 °C and 29 MPa

“…Carbon capture, utilization, and storage (CCUS) is an approach that involves capturing CO 2 generated by fossil fuel combustion or industrial processes and then storing it in the subsurface, potentially for thousands of years, to reduce CO 2 emissions and mitigate global warming (IPCC, ). Intended as a transition technology, CCUS allows the continuous use of fossil fuels while reducing CO 2 emissions at the same time (Celia, ). Costs may be offset when combined with enhanced oil recovery, enhanced geothermal systems, or CO 2 ‐plume geothermal (IPCC, ; Pruess, ; Randolph & Saar, ).…”

Tracking CO2 Plumes in Clay‐Rich Rock by Distributed Fiber Optic Strain Sensing (DFOSS): A Laboratory Demonstration

“…The deformations may be sufficient to induce seismicity (Gan & Frohlich, 2013;Hincks et al, 2018;Zoback & Gorelick, 2012) or observable uplift or subsidence of the ground (Rutqvist, 2012;Shirzaei et al, 2016). CO 2 sequestration into underground geological reservoirs is considered as a near-term solution to global warming effects (Benson et al, 2005;Celia, 2017;Sanchez et al, 2018). CO 2 injected into rocks can be retained by capillary, solubility, structure, and mineral trapping mechanisms.…”

Celebrating hydrologic science: The “Science is Essential” collection

“…2.7. Celia [2017]: Geological Storage of Captured Carbon Dioxide as a Large-Scale Carbon Mitigation Option Celia reviews the opportunities for geological storage of captured carbon dioxide (CO 2 ) as a way of reducing global CO 2 emissions to the atmosphere. The science advances in groundwater hydrology, where many decades of research have advanced our understanding of multiphase flow in porous media, have provided the capabilities to simulate different CO 2 injection scenarios.…”