In Salah CO2 injection modeling: A preliminary approach to predict short term reservoir behavior

Deflandre, J.-P.; Estublier, Audrey; Baroni, Axelle; Daniel, Jean‐Marc; Adjemian, F.

doi:10.1016/j.egypro.2011.02.286

Cited by 14 publications

(5 citation statements)

References 3 publications

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“…[], Preisig and Prévost [], and Deflandre et al . [], compared to the critical point of CO 2 at 31°C and 7.4 MPa [ Lide , ]). Second, mutual dissolution of the phases is ignored.…”

Section: Governing Equationsmentioning

confidence: 99%

Vertically integrated models for coupled two‐phase flow and geomechanics in porous media

Bjørnarå

Nordbotten

Park³

2016

Water Resources Research

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Models of reduced dimensionality have been found to be particularly attractive in simulating the fate of injected CO 2 in supercritical state in the context of carbon capture and storage. This is motivated by the confluence of three aspects: the strong buoyant segregation of the lighter CO 2 phase above water, the relatively long time scales associated with storage, and finally the large aspect ratios that characterize the geometry of typical storage aquifers. However, to date, these models have been confined to considering only the flow problem, as the coupling between reduced dimensionality models for flow and models for geomechanical response has previously not been developed. Herein, we develop a fully coupled, reduced dimension, model for multiphase flow and geomechanics. It is characterized by the aquifer(s) being of lower dimension(s), while the surrounding overburden and underburden being of full dimension. The model allows for general constitutive functions for fluid flow (relative permeability and capillary pressure) and uses the standard Biot coupling between the flow and mechanical equations. The coupled model retains all the simplicities of reduced-dimensional models for flow, including less stiff nonlinear systems of equations (since the upscaled constitutive functions are closer to linear), longer time steps (since the high grid resolution in the vertical direction can be avoided), and less degrees of freedom. We illustrate the applicability of the new coupled model through both a validation study and a practical computational example.

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“…[], Preisig and Prévost [], and Deflandre et al . [], compared to the critical point of CO 2 at 31°C and 7.4 MPa [ Lide , ]). Second, mutual dissolution of the phases is ignored.…”

Section: Governing Equationsmentioning

confidence: 99%

Vertically integrated models for coupled two‐phase flow and geomechanics in porous media

Bjørnarå

Nordbotten

Park³

2016

Water Resources Research

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“…Also worth noting here is the fact that previous work on model calibration has utilized both manual and automated calibration approaches. In manual calibration, parameters affecting the performance metrics of interest are adjusted by the modeler until a satisfactory ‘match’ is obtained.…”

Section: Model Calibration Strategymentioning

confidence: 99%

“…Delfandre et al used a dual media model to history match pressure evolution and observed CO 2 breakthrough at an old appraisal well located close to one of the CO 2 injection wells in the Krebcha field of the In Salah Gas Project in Algeria. They used a fracture network characterized by long fractures and faults spaced 1000–2000 m apart in order to match pressure response and breakthrough times.…”

Section: Introduction and Scopementioning

confidence: 99%

Modeling CO₂plume migration based on calibration of injection and post-injection pressure response at the AEP Mountaineer Project

Mishra

Oruganti

Gupta

et al. 2014

Greenhouse Gas Sci Technol

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Supercritical CO 2 injection was carried out at the AEP Mountaineer CO 2 Capture and Geological Storage Project from October 2009 until May 2011. Approximately 27 000 MT and 10 000 MT were injected into the Copper Ridge dolomite formation and Rose Run sandstone formation, respectively. A 2-D radial-cylindrical model based on 'average' conditions in the study area was developed from integration of well-log data. STOMP-CO 2 simulations were carried out to calibrate the observed pressure response using a trial-and-error procedure. This involved varying: (i) permeability near the injection well, (ii) permeability of the far-fi eld region, and (iii) relative permeability model coeffi cients. Non-unique combinations of these parameters were found to produce similar pressure matches, but different estimates of plume migration. For the Copper Ridge formation, excellent matches were obtained for the injection pressure/rate data at AEP-1 and observed pressures at MW-2, located ∼2200 feet away. Estimates of radial plume migration range between 925 and 975 ft. For the Rose Run formation, excellent matches were obtained for the injection pressure data at AEP-2 and observed pressure at MW-3, ∼125 feet away, although the match with MW-1, located ∼2200 feet away, was less satisfactory. Estimates of radial plume migration range between 460 and 510 ft. The modeling approach and results presented here represent a signifi cant and unique case study of post-injection modeling at CO 2 storage locations -a critical aspect for successful permit closure in accordance with the EPA requirements.

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“…This paper presents the main features of the geological model of the storage complex with its stratigraphic and petrophysical properties. The characterization workflow applied to fractured sandstone formations at In-Salah [8] is transposed to naturally fractured carbonate. These reservoirs are particularly challenging to handle because of their high level of heterogeneity that conditions the reservoir behaviour during the injection.…”

Section: Introductionmentioning

confidence: 99%

Geological Model of a Storage Complex for a CO2 Storage Operation in a Naturally-Fractured Carbonate Formation

Gallo¹,

Dios

2018

Geosciences

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Investigation into geological storage of CO2 is underway at Hontomín (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.

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In Salah CO2 injection modeling: A preliminary approach to predict short term reservoir behavior

Cited by 14 publications

References 3 publications

Vertically integrated models for coupled two‐phase flow and geomechanics in porous media

Vertically integrated models for coupled two‐phase flow and geomechanics in porous media

Modeling CO₂plume migration based on calibration of injection and post-injection pressure response at the AEP Mountaineer Project

Geological Model of a Storage Complex for a CO2 Storage Operation in a Naturally-Fractured Carbonate Formation

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In Salah CO2 injection modeling: A preliminary approach to predict short term reservoir behavior

Cited by 14 publications

References 3 publications

Vertically integrated models for coupled two‐phase flow and geomechanics in porous media

Vertically integrated models for coupled two‐phase flow and geomechanics in porous media

Modeling CO2plume migration based on calibration of injection and post-injection pressure response at the AEP Mountaineer Project

Geological Model of a Storage Complex for a CO2 Storage Operation in a Naturally-Fractured Carbonate Formation

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Modeling CO₂plume migration based on calibration of injection and post-injection pressure response at the AEP Mountaineer Project