Environmental isotopes in CO 2 geological sequestration

Jie Li and Zhonghe Pang

Greenhouse Gases: Science and Technology, 2015, vol. 5, issue 4, 374-388

Abstract: Carbon dioxide capture and sequestration (CCS) in deep geological formations has recently emerged as an important option for reducing greenhouse gas (GHG) emissions, and due to the complexity of the issue, CCS has turned into a multiple‐discipline research area. Environmental isotopes have been used in various CCS projects worldwide for evaluating trapping mechanisms, selecting storage sites, and monitoring for storage safety. Environmental isotopes are found useful in the investigation of many CCS issues and are particularly effective in identifying phase states (free, dissolved, and mineral state), and in quantifying structural, solubility, and mineral trapping forms of CO 2 . We used published laboratory results to successfully verify different methods for quantifying structural trapping mechanisms. Our results show that, in short time scales, saturation of the formation with free CO 2 ‐phase can be obtained from oxygen isotope measurements on CO 2 and/or reservoir brine, and carbon isotope of dissolved inorganic carbon can be used to trace dissolution in brine. Carbon isotopes and other parameters, such as CO 2 /-super-3He ratio, can also be used to confirm the mineral trapping mechanism in natural gas fields. Environmental isotopes can also be used to distinguish mineralogical composition of formations, and to identify hydrodynamic conditions for site selection in addition to monitor potential CO 2 leakage. © 2015 Society of Chemical Industry and John Wiley & Sons, Ltd

Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://hdl.handle.net/10.1002/ghg.1495

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wly:greenh:v:5:y:2015:i:4:p:374-388

Access Statistics for this article

More articles in Greenhouse Gases: Science and Technology from Blackwell Publishing
Bibliographic data for series maintained by Wiley Content Delivery ().