Satellite-based measurements of surface deformation reveal fluid flow associated with the geological storage of carbon dioxide

• Published in: Geophysical research letters Vol. 37; no. 3; pp. np - n/a
• Main Authors: Vasco, D. W., Rucci, A., Ferretti, A., Novali, F., Bissell, R. C., Ringrose, P. S., Mathieson, A. S., Wright, I. W.
• Format: Journal Article
• Language: English
• Published: Washington, DC Blackwell Publishing Ltd 01.02.2010; American Geophysical Union; John Wiley & Sons, Inc
• Subjects: Carbon capture and storage; Carbon dioxide; Carbon sequestration; Climate change; deformation; Earth; Earth sciences; Earth, ocean, space; Exact sciences and technology; Fluid flow; Fluids; Fracture mechanics; Geodetics; geological storage; Geology; Geophysics; Hydrology; InSAR; Remote sensing; Reservoirs; Rock deformation; Satellites; North Africa; Algeria; Africa; satellites; carbon dioxide; models; projects; interferometry; reservoirs; storage; monitoring; Carbon sequestration; greenhouse gas; Flow(fluid); displacements; fault zones; deformation; Elastic Earth; injection; fractures; Synthetic aperture radar
• ISSN: 0094-8276; 1944-8007
• DOI: 10.1029/2009GL041544

Interferometric Synthetic Aperture Radar (InSAR) data, gathered over the In Salah CO2 storage project in Algeria, provide an early indication that satellite‐based geodetic methods can be effective in monitoring the geological storage of carbon dioxide. An injected mass of 3 million tons of carbon dioxide from one of the first large‐scale carbon sequestration efforts, produces a measurable surface displacement of approximately 5 mm/year. Using geophysical inverse techniques, we are able to infer flow within the reservoir layer and within a seismically detected fracture/fault zone intersecting the reservoir. We find that, if we use the best available elastic Earth model, the fluid flow need only occur in the vicinity of the reservoir layer. However, flow associated with the injection of the carbon dioxide does appear to extend several kilometers laterally within the reservoir, following the fracture/fault zone.