[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.7842/kigas.2021.25.4.10

Numerical Analysis of Phase Behavior and Flow Properties in an Injection Tubing during Gas Phase CO₂ Injection : Application of Demonstration-scale Offshore CO₂ Storage Project in the Pohang Basin, Korea

Jung, Woodong (Petroleum and Mineral Research Institute, Hanyang University)
Sung, Wonmo (Dept. of Earth Resources and Environmental Engineering, Hanyang University)
Han, Jeong-Min (KOGAS Research Institute, Korea Gas Corporation)
Song, Youngsoo (Dept. of Earth Resources and Environmental Engineering, Hanyang University)
Wang, Jihoon (Dept. of Earth Resources and Environmental Engineering, Hanyang University)

Publication Information

Journal of the Korean Institute of Gas / v.25, no.4, 2021 , pp. 10-18 More about this Journal

Abstract

CO₂ storage technology in an aquifer is one of the most effective way to decrease global warming due to a high storage capacity and economics. A demonstration-scale offshore CO₂ storage project was performed in a geological deep aquifer in the Pohang Basin, Korea for a technological development of large-scale CO₂ storage. A challenging issue in the early design stage of the project was to establish the proper injectivity during CO₂ injection. To solve this issue, injection conditions were calculated by calculating injection rate, pressure, temperature, CO₂ phase change, and thermodynamic properties. For this study, we simulated and numerically analyzed CO₂ phase change from gas to supercritical phase and flow behavior in transport piping and injection tubing using OLGA program. Our results provide the injectivity conditions of CO₂ injection system combined with a bottomhole pressure of an aquifer.

Keywords

a geological deep aquifer; pohang basin; CO₂ phase change; global warming; injectivity;

Citations & Related Records

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