Challenges and enablers for large-scale CO2 storage in chalk formations

Bonto, María; Welch, Michael J.; Lüthje, Mikael; Andersen, Simon Ivar; Veshareh, Moein Jahanbani; Amour, Frédéric; Afrough, Armin; Mokhtari, R.; Hajiabadi, Mohammad Reza; Alizadeh, Mostafa; Larsen, C.N.; Nick, Hamidreza M.

doi:10.1016/j.earscirev.2021.103826

Cited by 48 publications

(20 citation statements)

References 295 publications

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“…In the past decades, the carbon capture, utilization, and storage (CCUS) technologies aimed at reducing the negative impact of CO 2 have been intensively developed. The main principle of CCUS is to reduce the redundant CO 2 for subsurface storage in depleted reservoirs such as hydrocarbon reservoirs, coal seams and chalk formations, in saline aquifers, , by sequestration via gas hydrates, − by conversion into the valued products obtained by the methanation reaction or by a reaction with olefin oxides, by utilization with supercritical CO 2 Brayton cycles, and many others. ,, An economical attractiveness of these industrial life cycles lies in the possibility of a pipeline transfer of CO 2 from a combustion chamber to the sequestration sites, which allows utilizing huge amounts of the produced gas …”

Section: Introductionmentioning

confidence: 99%

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO₂ Absorption Capacity, Density, and Viscosity

et al. 2022

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In the present paper, a systematic investigation of the influence of amine and salt concentration on the CO 2 absorption capacity (m CO 2 , moles of CO 2 absorbed by 1 kg of a solution) and amine efficiency (c CO 2 , moles of CO 2 absorbed by 1 mole of amine) of the ternary mixtures composed of monoethanolamine (MEA), ethylene glycol (EG), and choline chloride (ChCl) was carried out. We demonstrate that, in general, the presence of a fixed amount of ChCl in a mixed {MEA + EG} solvent cannot improve m CO 2 over an entire range of solvent composition and weakly decreases c CO 2 with the effect more pronounced for the mixtures containing greater amount of MEA. The influence of ChCl concentration on the above properties was analyzed for the mixtures with a fixed MEA/EG mole ratio but various ChCl concentrations. It was shown that a decrease in m CO 2 observed with an increase in ChCl, again, is rather caused by an overall decrease in MEA content in a mixture as its efficiency c CO 2 does not change when ChCl concentration increases. In addition, properties such as density (ρ) and viscosity (η) of the binary {MEA + EG} and ternary {MEA + EG + ChCl} mixtures were obtained within a wide range of temperatures for both neat and CO 2 -loaded samples. We show that regardless of the {MEA + EG} mixed solvent composition, the presence of ChCl increases both ρ and η. For CO 2loaded samples, both properties increase significantly with a greater contribution for the mixtures containing greater amount of MEA.

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Section: Introductionmentioning

confidence: 99%

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO₂ Absorption Capacity, Density, and Viscosity

et al. 2022

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“…Moreover, with the ongoing decline in hydrocarbon exploration and production activities in the Danish Central Graben, this study can serve as useful insights for future green energy projects that also relies on meticulous seismic reservoir characterization (Bredesen, 2022). Worth mentioning is the studies of exploiting the offshore chalk fields for geological CO 2 storage (Bonto et al., 2021; Frykman et al., 2009; Suicmez, 2019) or potential onshore CO 2 storage at, e.g., Stenlille (Zealand, Denmark), where 7 out of 19 wells drilled are missing Vp logs, and only 3 wells have Vs logs. Also, seismic reservoir characterization for geothermal purposes has been demonstrated in Denmark where shear sonic logs have been missing (Bredesen et al., 2020b; Chopra et al., 2021).…”

Section: Discussionmentioning

confidence: 99%

Estimation of shear sonic logs in the heterogeneous and fractured Lower Cretaceous of the Danish North Sea using supervised learning

Lorentzen

Bredesen

Mosegaard

et al. 2022

Geophysical Prospecting

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Shear wave velocity information is valuable in many aspects of seismic exploration and characterization of reservoirs. However, shear wave logs are not always available in the interval of interest due to cost and time‐saving purposes. In this study, we present a tailored supervised learning approach to estimate shear wave velocity from well‐log measurements in the Lower Cretaceous succession of the Valdemar and Boje fields in the Danish North Sea. Our objective is to investigate the performance of four supervised learning regression models (linear, random forest, support vector and multi‐layer perceptron). A limited well‐log data set from six wells is used for training and testing the supervised learning models. A set of well data containing normalized gamma ray, compressional wave velocity, neutron porosity and medium resistivity logs gave reasonable shear wave velocity estimates in the test wells with root‐mean‐square error scores within the range of other published studies. Based on limited input data and complex geology, the multi‐layer perceptron was the most successful model in predicting the reservoir sections of the test wells. However, all models lacked stability in the overburden zones. Lastly, re‐training the multi‐layer perceptron on the six wells to predict missing shear wave velocity in a nearby well showed promising results for further reservoir characterization. The obtained results can yield useful input into, for example, seismic pre‐stack inversion, amplitude versus offset analysis and rock physics analysis.

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“…Clayton and Hay, 1994;Gabrielsen and Kløvjan, 1997) or CO2 (e.g. Bonto et al, 2021) from a geological trap.…”

Section: Introductionmentioning

confidence: 99%

Approximate formulas for the energy release rate of a crack perpendicular to a material interface

Sargado¹,

Welch²,

Lüthje³

2022

Preprint

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Rock formations are very often characterized by the presence of fractures that have grown subcritically over geological time scales and under evolving stress fields. In mechanically layered systems, such fractures can either become layer-bound or penetrate into adjacent strata. The growth of fractures in brittle materials is generally dependent on the energy release rate, however no closed form analytical solutions exist for these when a crack tip is in the proximity of a material interface. In this study, we present new empirical formulas for calculating the energy release rate at the tip of a crack perpendicular to a material interface in a symmetric 3-layer system. In these formulas, the normalized energy release rate is expressed as the product of a base term that integrates the normalized stiffness modulus over the crack length, and a correction factor that accounts for the presence of a material interface. The latter is assumed to be dependent on two quantities: the ratio of the crack length to the inner layer thickness, and the contrast in material stiffness between the inner and outer layers. The correction factors are obtained by fitting the parameters of carefully chosen expressions to a set of finite element solutions in order to yield predictions that are accurate to within one percent of the numerical results.

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Challenges and enablers for large-scale CO2 storage in chalk formations

Cited by 48 publications

References 295 publications

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO₂ Absorption Capacity, Density, and Viscosity

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO₂ Absorption Capacity, Density, and Viscosity

Estimation of shear sonic logs in the heterogeneous and fractured Lower Cretaceous of the Danish North Sea using supervised learning

Approximate formulas for the energy release rate of a crack perpendicular to a material interface

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Challenges and enablers for large-scale CO2 storage in chalk formations

Cited by 48 publications

References 295 publications

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO2 Absorption Capacity, Density, and Viscosity

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO2 Absorption Capacity, Density, and Viscosity

Estimation of shear sonic logs in the heterogeneous and fractured Lower Cretaceous of the Danish North Sea using supervised learning

Approximate formulas for the energy release rate of a crack perpendicular to a material interface

Contact Info

Product

Resources

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Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO₂ Absorption Capacity, Density, and Viscosity

Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO₂ Absorption Capacity, Density, and Viscosity