Are Disused Hydrocarbon Reservoirs Safe for Geological Storage of CO2?

Jiménez, Jaime; Chalaturnyk, Rick

doi:10.1016/b978-008044276-1/50075-1

Cited by 12 publications

(10 citation statements)

References 15 publications

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“…However, shear deformation can also result in a reduced permeability (Jimenez and Chalaturnyk, 2003).…”

Section: Co 2 Leakagementioning

confidence: 99%

“…Fractures can be created by over pressuring the reservoir. Fractures could be sealed in time by precipitation of newly formed minerals, but could also be re-opened as a consequence of new changes in stresses during storage of CO 2 (Jimenez and Chalaturnyk, 2003). Also earlier production/injection processes to exploit hydrocarbon reservoirs may have created fractures.…”

Section: Co 2 Leakagementioning

confidence: 99%

“…• Diffusion of CO 2 through the cap rock is expected to be a very slow process, but can be the controlling mechanism for leakage on the long-term (Jimenez and Chalaturnyk, 2003).…”

Section: Co 2 Leakagementioning

confidence: 99%

“…Also earlier production/injection processes to exploit hydrocarbon reservoirs may have created fractures. In the selection of a suitable reservoir, the impact of primary, secondary and tertiary recovery processes 5 on the hydraulic integrity of the bounding seals should therefore be assessed (Jimenez and Chalaturnyk, 2003). In order to prevent fracturing, the maximum injection pressure should always be kept below the level at which the cap rock may shear (fracture pressure) (Over et al, 1999).…”

Section: Co 2 Leakagementioning

confidence: 99%

“…Since the capillary entry pressure of a cap rock has generally been sufficient to retain hydrocarbons and the capillary entry pressure can be measured, capillary leakage of CO 2 is not considered to be a problem (Jimenez and Chalaturnyk, 2003). …”

Section: Co 2 Leakagementioning

confidence: 99%

See 4 more Smart Citations

Health, Safety and Environmental Risks of Underground Co2 Storage – Overview of Mechanisms and Current Knowledge

2006

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Abstract. CO 2 capture and storage (CCS) in geological reservoirs may be part of a strategy to reduce global anthropogenic CO 2 emissions. Insight in the risks associated with underground CO 2 storage is needed to ensure that it can be applied as safe and effective greenhouse mitigation option. This paper aims to give an overview of the current (gaps in) knowledge of risks associated with underground CO 2 storage and research areas that need to be addressed to increase our understanding in those risks. Risks caused by a failure in surface installations are understood and can be minimised by risk abatement technologies and safety measures. The risks caused by underground CO 2 storage (CO 2 and CH 4 leakage, seismicity, ground movement and brine displacement) are less well understood. Main R&D objective is to determine the processes controlling leakage through/along wells, faults and fractures to assess leakage rates and to assess the effects on (marine) ecosystems. Although R&D activities currently being undertaken are working on these issues, it is expected that further demonstration projects and experimental work is needed to provide data for more thorough risk assessment.

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“…However, shear deformation can also result in a reduced permeability (Jimenez and Chalaturnyk, 2003).…”

Section: Co 2 Leakagementioning

confidence: 99%

Section: Co 2 Leakagementioning

confidence: 99%

“…• Diffusion of CO 2 through the cap rock is expected to be a very slow process, but can be the controlling mechanism for leakage on the long-term (Jimenez and Chalaturnyk, 2003).…”

Section: Co 2 Leakagementioning

confidence: 99%

Section: Co 2 Leakagementioning

confidence: 99%

Section: Co 2 Leakagementioning

confidence: 99%

See 3 more Smart Citations

Health, Safety and Environmental Risks of Underground Co2 Storage – Overview of Mechanisms and Current Knowledge

2006

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Challenges of Gas Injection

Azin

Izadpanahi

Ranjbar

2021

Fundamentals and Practical Aspects of Gas Injection

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Carbon storage: the economic efficiency of storing CO2 in leaky reservoirs

Ha‐Duong

Keith

2004

Technological Choices for Sustainability

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Fossil fuels can be used with minimal atmospheric emissions of carbon dioxide by capturing and storing the CO 2 away in geologic structures. However, stored CO 2 can leak back to the atmosphere reducing the utility of this technology. To explore the trade-offs between discounting, leakage, the cost of sequestration and the energy penalty (the energy necessary to capture, transport and inject carbon underground), we derive analytic expressions for the value of leaky CO 2 storage compared to perfect storage when storage is a marginal component of the energy system. If the annual leak rate is 1% and the discount rate is 4%, for example, then CO 2 mitigation using leaky storage is worth 80% of mitigation with perfect storage. Using an integrated assessment numerical model (DIAM) to explore the role of leakage when CO 2 storage is non-marginal, we find that a leakage rate of 0.1% is nearly the same as perfect storage while a leakage rate of 0.5% renders storage unattractive. The possibility of capturing CO 2 from the air, not only from flue gases, makes storage with higher leakage rates interesting. Finally, we speculate about the role of imperfect carbon storage in carbon accounting and trading. Carbon storage Original paper

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Are Disused Hydrocarbon Reservoirs Safe for Geological Storage of CO2?

Cited by 12 publications

References 15 publications

Health, Safety and Environmental Risks of Underground Co2 Storage – Overview of Mechanisms and Current Knowledge

Health, Safety and Environmental Risks of Underground Co2 Storage – Overview of Mechanisms and Current Knowledge

Challenges of Gas Injection

Carbon storage: the economic efficiency of storing CO2 in leaky reservoirs

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