The major techniques, advantages, and pitfalls of various methods used in geological carbon sequestration

Onyekuru, Samuel Okechukwu; Opara, Alexander Iheanyichukwu; Oguzie, Emeka E.

doi:10.1007/s13762-022-04351-0

Cited by 16 publications

(11 citation statements)

References 163 publications

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“…To begin with, saline aquifers have the largest storage capacity compared to the other two common geological formations, namely, oil and gas reservoirs and coal seams. Additionally, their more extensive distribution offers certain advantages in site selection . Furthermore, saline aquifers are typically located in the deep layer, where high pressure and temperature can cause CO 2 to exist in a liquid or supercritical state after injection, providing a safer means of CO 2 storage.…”

Section: Storage Sitesmentioning

confidence: 99%

“…Physical trapping sites include caves, mines, depleted oil and gas reservoirs, and deep saline aquifers. 38 Chemical trapping methods for CO 2 storage consist of dissolution and mineral trapping. Dissolution trapping dissolves CO 2 into the formation fluid, while mineral trapping permanently fixes CO 2 in minerals via chemical reactions.…”

Section: Trapping Mechanismmentioning

confidence: 99%

“…Additionally, their more extensive distribution offers certain advantages in site selection. 38 Furthermore, saline aquifers are typically located in the deep layer, where high pressure and temperature can cause CO 2 to exist in a liquid or supercritical state after injection, providing a safer means of CO 2 storage.…”

Section: Storage Sitesmentioning

confidence: 99%

“…Physical trapping comprises structural and residual/capillary trapping; the former limits CO 2 migration through stratigraphic structures, while the latter captures CO 2 in rock pores. Physical trapping sites include caves, mines, depleted oil and gas reservoirs, and deep saline aquifers . Chemical trapping methods for CO 2 storage consist of dissolution and mineral trapping.…”

Section: Trapping Mechanismmentioning

confidence: 99%

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Recent Advances in Geological Storage: Trapping Mechanisms, Storage Sites, Projects, and Application of Machine Learning

Feng

et al. 2023

Energy Fuels

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A significant amount of carbon dioxide (CO2) is being released into the atmosphere as a result of the acceleration of industrialization and increased energy consumption, which are causing a rise in world temperatures. Despite the fact that nations all over the world have actively participated in CO2 storage projects, there is still not enough to moderate global temperatures. Therefore, there is an urgent need for the development of CO2 sequestration technologies. The main geological storage trapping mechanisms are discussed in this work along with an analysis of the major influencing variables. Additionally, the benefits and drawbacks of significant storage locations and current research hotspots are explored. Storage project development across the globe is outlined. The use of machine learning for CO2 sequestration is reviewed toward the end. This extensive review reveals that the main variables affecting CO2 capture capacity are hydrodynamic and geochemical. The sequestration capability of various storage sites is significantly influenced by the reservoir characteristics and implementation methodologies. The successful implementation of the storage project is determined by local policies and public support. The development of machine learning technologies makes storage projects safer and more dependable.

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Section: Storage Sitesmentioning

confidence: 99%

Section: Trapping Mechanismmentioning

confidence: 99%

Section: Storage Sitesmentioning

confidence: 99%

Section: Trapping Mechanismmentioning

confidence: 99%

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Recent Advances in Geological Storage: Trapping Mechanisms, Storage Sites, Projects, and Application of Machine Learning

Feng

et al. 2023

Energy Fuels

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“…Anthropogenic fluid injection processes, such as geologic CO 2 storage, underground hydrogen storage, and geothermal power generation, accompany multi‐component or ‐phase fluid flow with (extremely) high velocity (Figure 1). For example, in recent decades, many countries have been conducting geologic CO 2 storage projects through various geologic formations (Aminu et al., 2017; Fagorite et al., 2022; Orr, 2004; Raza et al., 2022; Snæbjörnsdóttir et al., 2020). To achieve economic and (geo‐)engineering goals, millions of metric tons of CO 2 were injected under high injection pressure and rate to targeted storage formations (Bachu, 2000; Chadwick et al., 2012; Shi et al., 2013).…”

Section: Introductionmentioning

confidence: 99%

Fracture Morphology Influencing Supersonic CO₂ Transport: Application in Geologic CO₂ Sequestration

Yang,

Han,

Kim

et al. 2024

JGR Solid Earth

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Geologic carbon sequestration requires CO2 injection into the storage formation at high‐injecting pressure. Such high pressure could induce choked flow accompanying huge variations in thermodynamic properties of CO2 at a converging‐diverging (CD) fractures in the storage formation. In this study, high‐velocity CO2 transport through CD fractures was investigated to quantify the effect of fracture morphology on occurrence of both choked flow and shockwave that constrain the mass flow rate of fluid. In addition, variations in thermodynamic CO2 properties including Mach Number (Ma), defined by the ratio of fluid velocity to sound speed, and shock properties were investigated. The morphological characteristics of CD fractures were determined by nine properties, such as throat diameter, throat length, inlet diameter, outlet diameter, throat diameters of two‐connected CD fractures, fracture wall curvature, roughness amplitude, and frequency. As a result, the throat diameter crucially affected choked flow occurrence and maximum Ma. When the inlet and outlet diameters varied, the profiles for Ma variation were consistent in the converging and diverging segments, respectively. In addition, regardless of change in the throat length, the position of maximum Ma was nearly constant with showing the position length ratio of 0.13–0.14. However, roughness of fracture wall significantly influenced the Ma variation and occurrence of shock. In particular, backflows segregated from the main CO2 flow were observed near the wall roughness.

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The investigation of treatment design parameters on carbon integration networks

Alnouri,

Al-Mohannadi

2023

Clean Techn Environ Policy

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Carbon Integration methods help identify the appropriate allocation of captured carbon dioxide (CO2) streams into CO2-using sinks, and are especially useful when a number of CO2 sink options are present simultaneously. The method helps identify CO2 allocation scenarios when subjected to an emission target on the CO2 overall network. Many carbon dioxide sink options are costly, and more often than not, require a high purity carbon dioxide source to satisfy the sink demand. Hence, it is imperative to effectively incorporate treatment units in such networks, to obtain high-purity CO2 streams. In fact, it has been previously reported in many studies that the most expensive step in Carbon Capture, Utilization and Sequestration (CCUS) is the treatment system. As a result, this paper focuses on reassessing the performance of carbon integration networks using a more rigorous cost model for the treatment design stage. The effect of utilizing different treatment operating conditions on the overall cost of the treatment stage of CO2 (before allocation) is first captured using a detailed cost model. Subsequently, this information is then fed into a network design problem that involves a CO2 source-sink allocation network problem, and different CO2 net capture targets within the network. For this, an enhanced treatment model that captures all necessary treatment design parameters has been utilized alongside the original model. The original carbon integration formulation has been adopted from previous work. Many of the cost items have been lumped into single parameters in the original formulation, and lack the necessary depth required to carry out the necessary investigations for this work. Hence, the treatment model introduced in this paper is more rigorous, as it accounts for important technical performance constraints on the system to be assessed. Utilizing a more detailed cost model was found to be very helpful in understanding several effects of varying parameters on the overall source-sink allocations, when subjected to different CO2 net emission reduction targets. The cost of the carbon network increases when the solvent temperatures are increased. However, there was a noticeable linear trend at lower temperatures compared to higher temperatures, where the increase became non-linear. Furthermore, it was discovered that for net capture targets of 20% and 25%, no revenue from carbon storage could be generated beyond a solvent temperature of 25 °C. Additionally, the optimal diameter of the treatment column was more responsive to changes in solvent temperature for cases with low net capture targets (below 10%), while its sensitivity decreased for higher capture targets (above 10%). Graphical Abstract

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The major techniques, advantages, and pitfalls of various methods used in geological carbon sequestration

Cited by 16 publications

References 163 publications

Recent Advances in Geological Storage: Trapping Mechanisms, Storage Sites, Projects, and Application of Machine Learning

Recent Advances in Geological Storage: Trapping Mechanisms, Storage Sites, Projects, and Application of Machine Learning

Fracture Morphology Influencing Supersonic CO₂ Transport: Application in Geologic CO₂ Sequestration

The investigation of treatment design parameters on carbon integration networks

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The major techniques, advantages, and pitfalls of various methods used in geological carbon sequestration

Cited by 16 publications

References 163 publications

Recent Advances in Geological Storage: Trapping Mechanisms, Storage Sites, Projects, and Application of Machine Learning

Recent Advances in Geological Storage: Trapping Mechanisms, Storage Sites, Projects, and Application of Machine Learning

Fracture Morphology Influencing Supersonic CO2 Transport: Application in Geologic CO2 Sequestration

The investigation of treatment design parameters on carbon integration networks

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Fracture Morphology Influencing Supersonic CO₂ Transport: Application in Geologic CO₂ Sequestration