Experimental <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si7.gif" display="inline" overflow="scroll"><mml:msub><mml:mrow><mml:mstyle mathvariant="normal"><mml:mi>CO</mml:mi></mml:mstyle></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math> injection: Study of physical changes in sandstone porous media using Hg porosimetry and 3D pore network models

Campos, Rocío; Barrios, Icíar; Lillo, Javier

doi:10.1016/j.egyr.2015.01.004

Cited by 20 publications

(5 citation statements)

References 22 publications

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“…In another study conducted by Campos et al [15] where a sandstone sample from Utrillas was subjected to the injection of SCCO 2 and brine under storage conditions (80 bar and 32ºC), a decrease in its porosity was measured with Hg porosimetry, 15.64% to 9.70%, similar to that observed in the samples used in our study (Table I). This decrease of the meso porosity due to mineral precipitation leads to a lower storage capacity of the CO 2 injected later.…”

Section: -Results and Discussionsupporting

confidence: 87%

EXPERIMENTAL DEVICE TO EVALUATE MINERAL TRAPPING IN SANDSTONES AS A MEANS OF SUPERCRITICAL CO2 (scCO2) STORAGE

Valle

Olmedo

Pons

et al. 2019

DYNAII

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Carbon dioxide is the main Greenhouse Gas (GHG) due to its abundance in the atmosphere. CO2 capture and storage (CCS) technologies contribute to mitigate the effects of climate change by reducing their emissions. This requires appropriate geological environments such as deep saline aquifers with great potential on an industrial scale in Spain. They must have appropriate characteristics to ensure the tightness of CO2 and the technical viability of the injection process. The capacity of the storage is conditioned by the trap mechanisms that take place in depth. In this work, the static configuration of the ATAP (High Temperature-High Pressure) test device has been developed to reproduce the mineralization trap mechanism or mineral sequestration by applying it to a sandstone aquifer for supercritical CO2 storage (SCCO2). The equipment allows to observe the changes produced in a rock sample after it has been saturated with the fluids existing in the store (brine and SCCO2), under the pressure and temperature conditions characteristic of storage (up to 120ºC and 500 bar). To verify these changes, the technique of computed axial tomography and He pycnometry were used. The variations of porosity produced in the storage rock are compared with those obtained in studies of SCCO2 saturation by injection and in reactor carried out by other authors. Keywords: Mineral trapping, deep saline aquifer, sandstone storage, supercritical CO2, high pressure and temperature equipment

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Section: -Results and Discussionsupporting

confidence: 87%

EXPERIMENTAL DEVICE TO EVALUATE MINERAL TRAPPING IN SANDSTONES AS A MEANS OF SUPERCRITICAL CO2 (scCO2) STORAGE

Valle

Olmedo

Pons

et al. 2019

DYNAII

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“…Bensinger et al [94] found that CO2 injection created favorable conditions for the dissolution and precipitation of minerals, causing changes in the pore structure, porosity, and permeability. In addition, Campos et al [95] obtained the same conclusion as the former using the PN model constructed by the test method, i.e., that the CO2 flow caused changes in the pore structure and reduced the CO2 storage.…”

Section: Numerical Simulation Based On the Pnmodelmentioning

confidence: 60%

Microscopic Flow of CO2 in Complex Pore Structures: A Recent 10-Year Review

Liu,

Li,

Liang

et al. 2023

Sustainability

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To prevent CO2 leakage and ensure the safety of long-term CO2 storage, it is essential to investigate the flow mechanism of CO2 in complex pore structures at the pore scale. This study focused on reviewing the experimental, theoretical, and numerical simulation studies on the microscopic flow of CO2 in complex pore structures during the last decade. For example, advanced imaging techniques, such as X-ray computed tomography (CT) and nuclear magnetic resonance (NMR), have been used to reconstruct the complex pore structures of rocks. Mathematical methods, such as Darcy’s law, the Young–Laplace law, and the Navier-Stokes equation, have been used to describe the microscopic flow of CO2. Numerical methods, such as the lattice Boltzmann method (LBM) and pore network (PN) model, have been used for numerical simulations. The application of these experimental and theoretical models and numerical simulation studies is discussed, considering the effect of complex pore structures. Finally, future research is suggested to focus on the following. (1) Conducting real-time CT scanning experiments of CO2 displacement combined with the developed real-time CT scanning clamping device to achieve real-time visualization and provide a quantitative description of the flow behavior of CO2 in complex pore structures. (2) The effect of pore structures changes on the CO2 flow mechanism caused by the chemical reaction between CO2 and the pore surface, i.e., the flow theory of CO2 considering wettability and damage theory in a complex pore structures. (3) The flow mechanism of multi-phase CO2 in complex pore structures. (4) The flow mechanism of CO2 in pore structures at multiscale and the scale upgrade from microscopic to mesoscopic to macroscopic. Generally, this study focused on reviewing the research progress of CO2 flow mechanisms in complex pore structures at the pore scale and provides an overview of the potential advanced developments for enhancing the current understanding of CO2 microscopic flow mechanisms.

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“…Besides, in some experiments, precipitation of new mineral phases (carbonates) has also been observed. According to References [8,[39][40][41], the precipitation and dissolution of minerals could produce increasing or decreasing permeability and porosity, loss of injectability and strength reduction or strength gain. In our case, SiO 2 dominate the rock composition, which is favorable, as far as reactivity is concerned.…”

Section: Discussionmentioning

confidence: 99%

“…By the combined interpretation of the hydraulic properties and the pore space configuration, we can assess the rock hydraulic functionality at the rock matrix scale. For this purpose, the above parameters, and especially the intrusion and extrusion curves of MCIP, were used as an input in a 3D simulation of fluid circulation by means of the Pore-Cor RS 6.0 suite [8,25,31,32].…”

Section: Applied Techniques and Methodsmentioning

confidence: 99%

“…The results of rock characterization provide valuable information for modelling and assessing fundamental reservoir properties, such as injectivity, storage capacity or reactive processes [4,[7][8][9][10][11]. As far as injectivity is concerned, the porosity and permeability of the reservoir rock and the chemical reactions in the CO 2 -brine-rock system (i.e., mineral dissolution/precipitation) are decisive [4,12].…”

Section: Introduction and Objectivesmentioning

confidence: 99%

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Petrographic and Petrophysical Characterization of Detrital Reservoir Rocks for CO2 Geological Storage (Utrillas and Escucha Sandstones, Northern Spain)

Mateos-Redondo¹,

Kovács²,

Berrezueta

2018

Geosciences

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Abstract:The aim of this article is to provide a qualitative and quantitative description of Lower-Upper Cretaceous detrital rocks (Escucha and Utrillas sandstones) in order to explore their potential use as CO 2 reservoirs based on their petrographic and petrophysical characteristics. Optical microscopy (OpM) and scanning electron microscopy (SEM) aided by optical image analysis (OIA) were used to get qualitative and quantitative information about mineralogy, texture and pore network structure. Complementary analyses by X-ray fluorescence (XRF) and X-ray diffraction (XRD) were performed to refine the mineralogical information and to obtain whole rock geochemical data. Furthermore, mercury injection capillary pressure analysis (MICP), the gas permeameter test (GPT) and the hydraulic test (HT) were applied to assess the potential storage capacity and the facility of fluid flow through the rocks. Both of these factors have an outstanding importance in the determination of CO 2 reservoir potential. The applied petrophysical and petrographic methods allowed an exhaustive characterization of the samples and a preliminary assessment of their potential as a CO 2 reservoir. The studied conglomerates and sandstones have a porosity range of 8-26% with a dominant pore size range of 80-500 µm. The grain skeleton consists of quartz (95%), very minor potassium feldspars (orthoclase) and a small amount of mica (muscovite and chlorite). According to these preliminary results, among the studied varieties, the Escucha sandstones have the most favorable properties for CO 2 geological storage at the rock matrix scale.

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Experimental CO2 injection: Study of physical changes in sandstone porous media using Hg porosimetry and 3D pore network models

Cited by 20 publications

References 22 publications

EXPERIMENTAL DEVICE TO EVALUATE MINERAL TRAPPING IN SANDSTONES AS A MEANS OF SUPERCRITICAL CO2 (scCO2) STORAGE

EXPERIMENTAL DEVICE TO EVALUATE MINERAL TRAPPING IN SANDSTONES AS A MEANS OF SUPERCRITICAL CO2 (scCO2) STORAGE

Microscopic Flow of CO2 in Complex Pore Structures: A Recent 10-Year Review

Petrographic and Petrophysical Characterization of Detrital Reservoir Rocks for CO2 Geological Storage (Utrillas and Escucha Sandstones, Northern Spain)

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