The Long-term Corrosion Behavior of Abandoned Wells Under CO2 Geological Storage Conditions: (3) Assessment of Long-term (1,000-year) Performance of Abandoned Wells for Geological CO2 Storage

Carbon capture and storage (CCS) is increasingly considered to be a tool that can significantly reduce the emission of CO2. It is viewed as a technology that can contribute to a substantial, global reduction of emitted CO2 within the timeframe that seems available for mitigating the effects of present and continued emission. In order to develop the CCS method the European Union (EU) has supported research programmes for more than a decade, which focus on capture techniques, transport and geological storage. The results of the numerous research projects on geological storage are summarised in a comprehensive best practice manual outlining guidelines for storage in saline aquifers (Chadwick et al. 2008). A detailed directive for geological storage is under implementation (European Commission 2009), and the EU has furthermore established a programme for supporting the development of more than ten large-scale demonstration plants throughout Europe. Geological investigations show that suitable storage sites are present in most European countries. In Denmark initial investigations conducted by the Geological Survey of Denmark and Greenland and private companies indicate that there is significant storage potential at several locations in the subsurface.

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Impact of formation slope and fault on CO2 storage efficiency and containment at the Shenhua CO2 geological storage site in the Ordos Basin, China

International Journal of Greenhouse Gas Control ◽

10.1016/j.ijggc.2019.06.013 ◽

2019 ◽

Vol 88 ◽

pp. 209-225 ◽

Cited By ~ 2

Author(s):

Jing Jing ◽

Zhonghua Tang ◽

Yanlin Yang ◽

Liangzhe Ma

Keyword(s):

Co2 Storage ◽

Ordos Basin ◽

Storage Site ◽

Geological Storage ◽

Co2 Geological Storage ◽

Storage Efficiency ◽

The Ordos Basin

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CO2 capture project phase 2 (CCP2) — storage program: Closing long-term CO2 geological storage gaps relevant to regulatory and policy development

Energy Procedia ◽

10.1016/j.egypro.2009.01.007 ◽

2009 ◽

Vol 1 (1) ◽

pp. 35-39

Author(s):

Scott Imbus ◽

Dan Kieke ◽

Walter Crow ◽

Marcos Briceno ◽

Scott Rennie ◽

...

Keyword(s):

Co2 Capture ◽

Policy Development ◽

Phase 2 ◽

Geological Storage ◽

Co2 Geological Storage

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Reactive transport modeling of effects of convective mixing on long-term CO2 geological storage in deep saline formations

International Journal of Greenhouse Gas Control ◽

10.1016/j.ijggc.2010.10.007 ◽

2011 ◽

Vol 5 (2) ◽

pp. 241-256 ◽

Cited By ~ 32

Author(s):

Wei Zhang ◽

Yilian Li ◽

Anne Nyatichi Omambia

Keyword(s):

Reactive Transport ◽

Transport Modeling ◽

Reactive Transport Modeling ◽

Geological Storage ◽

Co2 Geological Storage ◽

Convective Mixing

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Study on the Influential Factors of CO2 Storage in Low Permeability Reservoir

Energies ◽

10.3390/en15010344 ◽

2022 ◽

Vol 15 (1) ◽

pp. 344

Author(s):

Ping Yue ◽

Rujie Zhang ◽

James J. Sheng ◽

Gaoming Yu ◽

Feng Liu

Keyword(s):

Carbon Dioxide ◽

Co2 Storage ◽

Ordos Basin ◽

Influential Factors ◽

Low Permeability ◽

Geological Storage ◽

Co2 Geological Storage ◽

Low Permeability Reservoir ◽

Low Permeability Reservoirs ◽

Breakthrough Pressure

As the demands of tight-oil Enhanced Oil Recovery (EOR) and the controlling of anthropogenic carbon emission have become global challenges, Carbon Capture Utilization and Sequestration (CCUS) has been recognized as an effective solution to resolve both needs. However, the influential factors of carbon dioxide (CO2) geological storage in low permeability reservoirs have not been fully studied. Based on core samples from the Huang-3 area of the Ordos Basin, the feasibility and influential factors of geological CO2 sequestration in the Huang-3 area are analyzed through caprock breakthrough tests and a CO2 storage factor experiment. The results indicate that capillary trapping is the key mechanism of the sealing effect by the caprock. With the increase of caprock permeability, the breakthrough pressure and pressure difference decreased rapidly. A good exponential relationship between caprock breakthrough pressure and permeability can be summarized. The minimum breakthrough pressure of CO2 in the caprock of the Huang-3 area is 22 MPa, and the breakthrough pressure gradient is greater than 100 MPa/m. Huang-3 area is suitable for the geological sequestration of CO2, and the risk of CO2 breakthrough in the caprock is small. At the same storage percentage, the recovery factor of crude oil in larger permeability core is higher, and the storage percentage decreases with the increase of recovery factor. It turned out that a low permeability reservoir is easier to store CO2, and the storage percentage of carbon dioxide in the miscible phase is greater than that in the immiscible phase. This study can provide empirical reference for caprock selection and safety evaluation of CO2 geological storage in low permeability reservoirs within Ordos Basin.

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X-Ray Computed Tomography of CO2 Behavior in Water Saturated Sandstone for Geological Storage

2010 14th International Heat Transfer Conference, Volume 6 ◽

10.1115/ihtc14-23132 ◽

2010 ◽

Author(s):

Suguru Uemura ◽

Ryoto Kataoka ◽

Shohji Tsushima ◽

Shuichiro Hirai

Keyword(s):

Computed Tomography ◽

Oil Recovery ◽

Water Pressure ◽

Co2 Storage ◽

Packed Bed ◽

Geological Storage ◽

Co2 Geological Storage ◽

X Ray ◽

X Ray Computed ◽

Water Saturated

The CO2 Geological storage is considered as an effective technology for reducing the emissions of CO2 into the atmosphere. CO2 storage is a technically feasible and effective method for CO2 mitigation because it is based on enhanced oil recovery technology, and storage sites hold significant potential. Currently, field tests for CO2 geological storage are proceeding in many parts of the world. However, the behavior of injected CO2 is still not completely understood. The CO2 storage potential and risk of leakage from reservoirs must be accurately estimated to realize practicable CO2 storage. For this reason, laboratory-scale experimental analysis of the behavior of CO2 injected in sandstone are an important issues. In this study, CO2 distribution and its behavior in sandstone were observed by micro-focus X-ray computed tomography (CT). The X-ray CT can fluoroscope the CO2 in the porous media and reconstruct a three-dimensional CO2 distribution image. A sample was kept under high pressure conditions in a cylindrical pressure vessel and filled with CO2 saturated water. Pressure in the vessel was kept at 7.5 MPa, which is the same condition as a saline aquifer at 750 m depth. Liquid or supercritical CO2 was injected from the end face of water saturated samples. Temperature conditions were set to 20 or 40°C according to the experimental objectives of the CO2 phase. In the experimental results, CO2 distribution in the silica-packed bed and sandstone was clearly visualized with high spatial resolution compared to its diameter. The possibility of improvement in storage technology discussed.

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