E3S Web Conf.
Volume 245, 20212021 5th International Conference on Advances in Energy, Environment and Chemical Science (AEECS 2021)
|Number of page(s)||6|
|Section||Energy Development and Utilization and Energy-Saving Technology Application|
|Published online||24 March 2021|
Study on axial-flow hydrocyclone for in-situ sand removal of natural gas hydrate in the subsea
1 School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, China
2 National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, 200237, China
3 School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
* Corresponding author’s e-mail: firstname.lastname@example.org
Natural gas hydrate (NGH) has become the most potential emerging green energy known in the 21st century due to its characteristics of wide distribution, abundant reserves and clean combustion. This study designs an axial annulus in situ hydrocyclone desander (AAIHD) based on drilling instruments in order to resolve the serious problem of sand production during solid fluidization of NGH. The effect of the inlet flow rate and separation zone length on the sand removal efficiency of the AAIHD is tested through experimental research. The results indicate that AAIHD has a higher separation performance when the separation zone length is L/D=12.4 and the inlet flow rate is in the range of 10 m3/h to 25 m3/h, and the maximum separation efficiency reaches 77.4%. The purpose of this study is to achieve in-situ sand removal and the backfilling of sand slurry in addition to facilitate the advancement of solid fluidized exploration technologies.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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