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Outcrop scale reservoir characterisation and flow modelling of CO2 injection in the tsunami and the barrier island—Tidal inlet reservoirs of the Camarillas Fm. (Galve sub-basin, Teruel, NE Spain)

AutorVeloso, F. M. L.; Frykman, P.; Nielsen, C. M.; Soria, Ana Rosa; Meléndez, Nieves
Palabras claveFlow modelling
Reservoir characterisation
CO2 injection
CO2 dissolution
Thin sandstone
Cretaceous outcrop
Tsunami deposit
Barrier island-tidal inlet deposit
Fecha de publicación18-nov-2016
CitaciónInternational Journal of Greenhouse Gas Control, 55: 60–72 (2016).
ResumenIn this study, we examined two sandstones bodies of the Camarillas Fm. The porosity and permeability models of each sandstone body, the tsunami deposit at the bottom and the barrier island – tidal inlet deposit at the top, supplied two independent reservoir models reflecting different sedimentary processes. Through study cases from outcrop data, we show that the dissolution of CO2 reached 40% of the total injected where the injection point was in thin zones (1–3 m-thick). The study cases presented here represent nearly one grid block (grid cell) of classic reservoir models, but are very complex in terms of petrophysical distribution. Geological model uncertainty is low (outcrop data), and facies are well correlated to petrophysics. Both deposits stored 50–60% of injected CO2 by residual and dissolution trapping over 7.5 years. The injection rate per day (maximum 200 sm3/day for the tsunami reservoir and 400 sm3/day for the barrier island − tidal inlet (b.i/inlet) reservoir) and the total amount of injected CO2 (108,000–116,000 sm3, ∼200 ton in 1.2–1.7 years) were very low in comparison with an in industrial project; however, results of this study have an important impact on the assessment and estimation of dissolved CO2 in aqueous phase, and could be used in studies on upscaling methods.
Versión del editorhttp://dx.doi.org/10.1016/j.ijggc.2016.11.007
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