Geological Model of a Storage Complex for a CO2 Storage Operation in a Naturally-Fractured Carbonate Formation
Yann Le Gallo,José Carlos de Dios +1 more
- Vol. 8, Iss: 9, pp 354
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TLDR
In this article, a geological model encompassing the whole storage complex was established based upon newly-drilled and legacy wells and the matrix characteristics were mainly obtained from the newly drilled wells with a complete suite of log acquisitions, laboratory works and hydraulic tests.Abstract:
Investigation into geological storage of CO2 is underway at Hontomin (Spain). The storage reservoir is a deep saline aquifer formed by naturally fractured carbonates with low matrix permeability. Understanding the processes that are involved in CO2 migration within these formations is key to ensure safe operation and reliable plume prediction. A geological model encompassing the whole storage complex was established based upon newly-drilled and legacy wells. The matrix characteristics were mainly obtained from the newly drilled wells with a complete suite of log acquisitions, laboratory works and hydraulic tests. The model major improvement is the integration of the natural fractures. Following a methodology that was developed for naturally fractured hydrocarbon reservoirs, the advanced characterization workflow identified the main sets of fractures and their main characteristics, such as apertures, orientations, and dips. Two main sets of fracture are identified based upon their mean orientation: North-South and East-West with different fracture density for each the facies. The flow capacity of the fracture sets are calibrated on interpreted injection tests by matching their permeability and aperture at the Discrete Fracture Network scale and are subsequently upscaled to the geological model scale. A key new feature of the model is estimated permeability anisotropy induced by the fracture sets.read more
Citations
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Journal ArticleDOI
Effect of geological heterogeneities on reservoir storage capacity and migration of CO2 plume in a deep saline fractured carbonate aquifer
TL;DR: In a reservoir characterization study of the Hontomin deep saline aquifer, the impact of geological heterogeneities on reservoir storage capacity and the migration of the CO2 plume is explored in this paper.
Posted ContentDOI
Active tectonic field for CO 2 Storage management: Hontomín onshore study-case (SPAIN)
Raúl Pérez-López,José F. Mediato,Miguel Ángel Rodríguez-Pascua,Jorge L. Giner-Robles,Adrià Ramos,Silvia Martín-Velázquez,Roberto Martínez-Orío,Paula Fernández-Canteli +7 more
TL;DR: In this article, the authors adapt a methodology of systematic geostructural analysis to the underground CO2 storage, based on the calculation of the strain field and defined by the strain fields from kinematics indicators on the fault planes (ey and ex for the maximum and minimum horizontal shortening respectively).
Journal ArticleDOI
Modeling reactive flow on carbonates with realistic porosity and permeability fields
Leandro de Paulo Ferreira,Rodrigo Surmas,Sandra Nelis Tonietto,Mônica Antunes Pereira da Silva,Ricardo Pires Peçanha +4 more
TL;DR: In this paper, the porosity field was calculated directly from micro-CT images, and two methodologies were proposed to calculate the permeability field, and a reactive two-scale continuum solver was implemented in OpenFOAM.
Journal ArticleDOI
An active tectonic field for CO 2 storage management: the Hontomín onshore case study (Spain)
Raúl Pérez-López,José F. Mediato,Miguel Ángel Rodríguez-Pascua,Jorge L. Giner-Robles,Adrià Ramos,Silvia Martín-Velázquez,Roberto Martínez-Orío,Paula Fernández-Canteli +7 more
TL;DR: In this article, the authors adapt a methodology of systematic geostructural analysis to underground CO2 storage, based on the calculation of the strain field from kinematics indicators on the fault planes.
Journal ArticleDOI
Effect of scCO2-brine mixture on injectivity and storage capacity in rock samples of naturally fractured carbonate formations
TL;DR: In this paper, the petrophysical behavior of two carbonate formations was studied, with different proportions of limestone, dolomite, quartz and anhydrite and fissures sealed mainly by potassium aluminosilicates and iron sulphides.
References
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Journal ArticleDOI
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Journal ArticleDOI
Acoustic and optical borehole-wall imaging for fractured-rock aquifer studies
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Journal ArticleDOI
Evaluating the impact of fractures on the performance of the In Salah CO2 storage site
Martin Iding,Philip Ringrose +1 more
TL;DR: The In Salah Gas Joint Venture CO 2 storage project has been in operation in Algeria since 2004 and is currently the world's largest onshore CO2 storage project as mentioned in this paper, where CO 2 is injected into the saline aquifer of a gas reservoir several kilometres away from the gas producers.