@article{359e46ae60bc4f2883aae59d92d7d1dd,
title = "Multi-lateral horizontal well with dual-tubing system to improve CO2 storage security and reduce CCS cost",
abstract = "This paper proposes a multi-lateral horizontal well with a dual-tubing (MLHW-DT) system to improve CO2 storage security and reduce the cost of carbon capture and storage (CCS) at a saline aquifer. In CCS, the production and re-injection of brine are efficient methods of relieving overpressure and improving the CO2 storage security simultaneously. In our previous study, a horizontal well with a dual-tubing (HW-DT) system operating on an onshore platform reduced CCS cost. In this study, the proposed MLHW-DT system is designed to implement the concept of the re-injection of produced brine to improve CO2 storage security while supplementing the shortcomings of the conventional brine production system by reducing CCS cost. When we vary the vertical-horizontal permeability ratio and dip angle of a saline aquifer, the CO2 storage security of the MLHW-DT system is improved compared with that of the overall HW-DT system because the re-injected brine induces the CO2 plume migration in the lateral direction. Furthermore, the CCS cost of the MLHW-DT system is reduced by 69.4% compared with that of the conventional brine production system if the MLHW is operated on an onshore platform. Based on these results, the MLHW-DT is a safe and economical operation system for a CCS project.",
keywords = "carbon capture and storage (CCS), CCS cost, CO storage security, multi-lateral horizontal well with dual-tubing (MLHW-DT) system",
author = "Min Kim and Seoyoon Kwon and Minsoo Ji and Hyundon Shin and Baehyun Min",
note = "Funding Information: This research was supported by the National Research Foundation of Korea (NRF) grants (No. 2019R1C1C1002574 and No. 2021R1C1C2013852 ), the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20214710100060 and No. 20212010200010 ), and the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by Ministry of Land, Infrastructure and Transport (MOLIT) (No. RS-2022-00143644 ). We are also grateful for the donation of the reservoir simulation software package from Computer Modelling Group, Ltd (CMG). Funding Information: This research was supported by the National Research Foundation of Korea (NRF) grants (No. 2019R1C1C1002574 and No. 2021R1C1C2013852), the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20214710100060 and No. 20212010200010), and the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by Ministry of Land, Infrastructure and Transport (MOLIT) (No. RS-2022-00143644). We are also grateful for the donation of the reservoir simulation software package from Computer Modelling Group, Ltd (CMG). Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",
year = "2023",
month = jan,
day = "15",
doi = "10.1016/j.apenergy.2022.120368",
language = "English",
volume = "330",
journal = "Applied Energy",
issn = "0306-2619",
publisher = "Elsevier BV",
}