Abstract
This chapter introduces the underground LNG storage technology which is superior in safety, economic and environmental aspects to a conventional aboveground and inground storage type and shows various results of the pilot test done for technical verification of the new storage method. We also show the results of applying the FRACOD analysis function developed to simulate the thermo-mechanical coupling behavior of the rock mass surrounding the storage cavern and the ice ring formation process due to the cryogenic LNG storage.
For the purpose of this publication, it presents recent developments of the thermal-mechanical coupling and ice swelling functions in FRACOD, a numerical code designed to predict rock fracturing processes in fractured rock masses. The new functions enable us to investigate the complicated response of an in situ rock mass to the excavation of LNG cavern and the storage of low-temperature LNG in a most realistic way.
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Park, ES., Jung, YB., Kim, T.K., Shen, B. (2020). Application to Underground LNG Storage. In: Shen, B., Stephansson, O., Rinne, M. (eds) Modelling Rock Fracturing Processes. Springer, Cham. https://doi.org/10.1007/978-3-030-35525-8_12
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DOI: https://doi.org/10.1007/978-3-030-35525-8_12
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