Carbon sequestration through CO
2 injection into a formation is an effective strategy for reducing greenhouse gas emissions. In this study, a one-dimensional long reactor was constructed to simulate the CO
2 injection process under various sediment temperatures, pressures, and flow rates. The
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Carbon sequestration through CO
2 injection into a formation is an effective strategy for reducing greenhouse gas emissions. In this study, a one-dimensional long reactor was constructed to simulate the CO
2 injection process under various sediment temperatures, pressures, and flow rates. The formation of CO
2 hydrate and the resulting blockages were investigated in detail through a series of indoor experiments. Due to the increasing driving force for CO
2 hydrate formation, reducing sediment temperature and increasing sediment pressure can cause hydrate blockage to form near the injection end, leading to an increase in CO
2 injection pressure and a reduction in the storage range. Furthermore, CO
2 injection rate has a substantial impact on the pattern of hydrate blockage. A lower injection rate facilitates full contact between CO
2 gas and pore water, which helps to increase the formation and blockage degree of CO
2 hydrates, thereby decreasing the amount of CO
2 injection. The experimental investigation presented in this paper examines the laws of CO
2 injection and clogging under various sediment conditions and injection processes on a one-dimensional scale, which can provide valuable insights for the design of CO
2 sequestration processes.
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