Study on axial-flow hydrocyclone for in-situ sand removal of natural gas hydrate in the subsea

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...

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Main Authors: Lin Haitao, Huang Yuan, Wang Hualin
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/21/e3sconf_aeecs2021_01050.pdf
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author Lin Haitao
Huang Yuan
Wang Hualin
author_facet Lin Haitao
Huang Yuan
Wang Hualin
author_sort Lin Haitao
collection DOAJ
description 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.
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spelling doaj.art-98ce5d89c0954d998e25f348bca650b22022-12-21T22:32:20ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012450105010.1051/e3sconf/202124501050e3sconf_aeecs2021_01050Study on axial-flow hydrocyclone for in-situ sand removal of natural gas hydrate in the subseaLin HaitaoHuang YuanWang Hualin0National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and TechnologyNatural 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.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/21/e3sconf_aeecs2021_01050.pdf
spellingShingle Lin Haitao
Huang Yuan
Wang Hualin
Study on axial-flow hydrocyclone for in-situ sand removal of natural gas hydrate in the subsea
E3S Web of Conferences
title Study on axial-flow hydrocyclone for in-situ sand removal of natural gas hydrate in the subsea
title_full Study on axial-flow hydrocyclone for in-situ sand removal of natural gas hydrate in the subsea
title_fullStr Study on axial-flow hydrocyclone for in-situ sand removal of natural gas hydrate in the subsea
title_full_unstemmed Study on axial-flow hydrocyclone for in-situ sand removal of natural gas hydrate in the subsea
title_short Study on axial-flow hydrocyclone for in-situ sand removal of natural gas hydrate in the subsea
title_sort study on axial flow hydrocyclone for in situ sand removal of natural gas hydrate in the subsea
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/21/e3sconf_aeecs2021_01050.pdf
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AT huangyuan studyonaxialflowhydrocycloneforinsitusandremovalofnaturalgashydrateinthesubsea
AT wanghualin studyonaxialflowhydrocycloneforinsitusandremovalofnaturalgashydrateinthesubsea