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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

HEAT TRANSFER MODELING OF CO2 IN THE WELLBORE AND AQUIFER DURING GEOLOGICAL SEQUESTRATION

Get access (open in a dialog) DOI: 10.1615/IHTC16.cms.023501
pages 1777-1782

Abstract

Carbon Capture and Storage is the key to reduce carbon dioxide emissions, which can be used in the practical project. It's extremely important to understand the thermal properties of CO2 during the project for keeping a large number of CO2 safely, and numerical models play an important role in these research. In previous research, the wellbore injection and storage into saline which should be an integrated system are modeled as two independent stages. In this paper, we built a united wellbore-aquifer model to simulate the heat transfer of fluid in the reservoir. Meanwhile analysis was obtained through comparing the results under different conditions. It shows that the Joule-Thomson cooling effect and the temperature difference between fluid and formation are the key reasons to affect temperature in the case of low-depth. When depth comes to a certain value, the temperature distribution depends on the formation temperature and the wellbore thermal resistance. The fluid temperature has an influence on the spatial extent of cooling and the radial location where the minimum temperature occurs. During the injection process, higher temperature and lower pressure may suppress the cooling effect.