Evaluating the effects of CO2 Injection in Faulted Saline Aquifers

Alexander, David; Boodlal, Donnie

doi:10.1016/j.egypro.2014.11.324

Cited by 12 publications

(7 citation statements)

References 14 publications

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“…33,34 It can be used to accurately simulate the long-term impacts of CO 2 injection into deep saline aquifers and help managers analyze the feasibility of CCS projects. [35][36][37][38] The numerical method for solving the compositions equilibrium and mineral dissolution/precipitation as well as multiphase multicomponent transport is based on complete coupled and adaptive implicit approaches. Additional details on the simulator's capabilities, governing equations, calculation procedures and limitations are summarized in the user's manual of CMG-GEM.…”

Section: Methodology Description Of Simulatormentioning

confidence: 99%

“…The simulations were performed using the Computer Modelling Group Ltd.’s (CMG's) GEM simulator, which is a widely used Equation‐of‐State reservoir simulator for compositional, chemical, and unconventional reservoir modelling 33,34 . It can be used to accurately simulate the long‐term impacts of CO 2 injection into deep saline aquifers and help managers analyze the feasibility of CCS projects 35–38 . The numerical method for solving the compositions equilibrium and mineral dissolution/precipitation as well as multiphase multicomponent transport is based on complete coupled and adaptive implicit approaches.…”

Section: Methodsmentioning

confidence: 99%

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Long‐term CO₂ sequestration mechanisms and influence of injection mode in Zhujiang Formation of Pearl River Mouth Basin

Xuan,

Cao,

et al. 2024

Greenhouse Gases

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In this paper, the mechanisms of long‐term CO2 sequestration and the effects of injection modes (including injection temperature, injection rate and injection cycle) in Zhujiang Formation characterized by high porosity and permeability were investigated using the numerical simulation method. Simulation results showed that more than 88% of the injected CO2 would exist in a supercritical state during the injection period and more than 79% of CO2 would be sequestrated in the reservoir by mineral trapping after 5,000 years. Eventually, the distribution shape of SC‐CO2 was a quarter funnel near the injection well, while the distribution shapes of dissolved and mineralized CO2 were both one quarter rotunda. During the long‐term CO2 sequestration in Zhujiang Formation, the dissolved minerals were anorthite, chlorite and smectite in turn, while the top three main precipitated minerals were calcite, dawsonite and albite. Moreover, higher injection temperature leads to a higher mineral tapping and more dissolved/precipitated minerals. While higher injection rate reduces the mineral tapping and total amount of dissolved/precipitated mineral. Compared to injection temperature and injection rate, the injection cycle has little effect on the CO2 phase evolution and mineral dissolution/precipitation process. © 2024 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Section: Methodology Description Of Simulatormentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Long‐term CO₂ sequestration mechanisms and influence of injection mode in Zhujiang Formation of Pearl River Mouth Basin

Xuan,

Cao,

et al. 2024

Greenhouse Gases

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“…The geological faults, folds, and subsurface structures can influence the CO 2 migration and CCS integrity. The presence of faults in the domain might lead to CO 2 leakage and be prone to disrupt the structural integrity of the subsurface domain [43][44][45]. The research has to be carried out on the geological structures with faults, and different folds, which are still nascent with regard to primary (structural and residual) and secondary (solubility) trapping mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Influence of Caprock Morphology on Solubility Trapping during CO2 Geological Sequestration

2022

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Carbon capture and sequestration (CCS) technology is one of the indispensable alternatives to reduce carbon dioxide (CO2) emissions. In this technology, carbon capture and transport grid will send CO2 to the storage facilities that are using various storage techniques. Geologic carbon sequestration (GCS) is one such storage technique where CO2 is injected into a deep geological subsurface formation. The injected CO2 is permanently stored in the formation due to structural, residual, solubility, and mineral trapping phenomena. Among different trapping mechanisms, solubility trapping plays a significant role in the safe operation of GCS. In this work, the study is conducted to elucidate the influence of top surface caprock morphology on the solubility trapping mechanism. The simulation results show that the naturally available heterogeneous formations with anticline and without anticline structure influence the solubility fingering phenomena and solubility entrapment percentage over a geological time scale. The lateral migration and sweeping efficiency results of both the synthetic domains for the injected CO2 have shown the importance of caprock morphology on solubility trapping and selection of injection rate. Quantification of solubility trapping in two morphological structures revealed that the synthetic domain without anticline morphology had shown higher solubility trapping. In the future, the simulation data using Artificial Neural Networks can be applied to predict the structural and solubility trapping of geological formations. This analysis further helps incorporating the interaction of CO2 with porous media leading to a mineral trapping mechanism.

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“…In this process, while injecting CO 2 percolate through the formation layer, it encounters porous channels and traps and leaves residuals in the migration pathway [27,28]. e traps are within the more prominent geological formation, which serves as storage spaces or minireservoirs [29].…”

Section: Introductionmentioning

confidence: 99%

Investigations of Structural and Residual Trapping Phenomena during CO2 Sequestration in Deccan Volcanic Province of the Saurashtra Region, Gujarat

Punnam

Krishnamurthy

Surasani

2021

International Journal of Chemical Engineering

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This work aims to study the structural and residual trapping mechanisms on the Deccan traps topography to elucidate the possible implementation of CO2 geological sequestration. This study provides an insight into a selection of stairsteps landscape from Deccan traps in the Saurashtra region, Gujarat, India. Various parameters affect the efficiency of the structural and residual trapping mechanisms. Thus, the parametric study is conducted on the modeled synthetic geological domain by considering the suitable injection points for varying injection rates and petrophysical properties. The outcomes of this study will provide insights into the dependencies of structural and residual trapping on the Deccan traps surface topography and injection rates. It can also establish a protocol for selecting the optimal injection points with the desired injection rate for the safe and efficient implementation of CO2 sequestration. The simulation results of this study have shown the dependencies of structural and residual trapping on the geological domain parameters.

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Evaluating the effects of CO2 Injection in Faulted Saline Aquifers

Cited by 12 publications

References 14 publications

Long‐term CO₂ sequestration mechanisms and influence of injection mode in Zhujiang Formation of Pearl River Mouth Basin

Long‐term CO₂ sequestration mechanisms and influence of injection mode in Zhujiang Formation of Pearl River Mouth Basin

Influence of Caprock Morphology on Solubility Trapping during CO2 Geological Sequestration

Investigations of Structural and Residual Trapping Phenomena during CO2 Sequestration in Deccan Volcanic Province of the Saurashtra Region, Gujarat

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Evaluating the effects of CO2 Injection in Faulted Saline Aquifers

Cited by 12 publications

References 14 publications

Long‐term CO2 sequestration mechanisms and influence of injection mode in Zhujiang Formation of Pearl River Mouth Basin

Long‐term CO2 sequestration mechanisms and influence of injection mode in Zhujiang Formation of Pearl River Mouth Basin

Influence of Caprock Morphology on Solubility Trapping during CO2 Geological Sequestration

Investigations of Structural and Residual Trapping Phenomena during CO2 Sequestration in Deccan Volcanic Province of the Saurashtra Region, Gujarat

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Long‐term CO₂ sequestration mechanisms and influence of injection mode in Zhujiang Formation of Pearl River Mouth Basin

Long‐term CO₂ sequestration mechanisms and influence of injection mode in Zhujiang Formation of Pearl River Mouth Basin