DC Field | Value | Language |
---|---|---|
dc.contributor.author | Han, Gyeol | ko |
dc.contributor.author | Kwon, Tae-Hyuk | ko |
dc.contributor.author | Lee, Joo Yong | ko |
dc.contributor.author | Jung, Jongwon | ko |
dc.date.accessioned | 2020-06-30T01:20:05Z | - |
dc.date.available | 2020-06-30T01:20:05Z | - |
dc.date.created | 2019-11-11 | - |
dc.date.created | 2019-11-11 | - |
dc.date.issued | 2020-07 | - |
dc.identifier.citation | GEOMECHANICS FOR ENERGY AND THE ENVIRONMENT, v.23, pp.100131 | - |
dc.identifier.issn | 2352-3808 | - |
dc.identifier.uri | http://hdl.handle.net/10203/275040 | - |
dc.description.abstract | Depressurization of hydrate-bearing sediments (HBS) is inevitably accompanied with sediment transport, not only structural host sediment itself but also fine particles, which can be a significant problem in producing gases from HBS, as demonstrated in recent field-scale hydrate production tests. Particularly, the migration of fine sediment particles can alter the hydro-mechanical properties of sediments, and reduce long-term hydrocarbon productivity by causing local-clogging around wells. However, questions as to under which circumstances and to what extent the fines migration and pore-clogging occur remain poorly resolved, particularly in association with two-phase flows. Therefore, this study explored the fines migration induced by fluid flows and the resulting pore-clogging in porous media. One-dimensional channel experiments were carried out with sandy sediments containing non-plastic silty fines to examine effects of fluid velocity and mixed fluid flows on pore-clogging occurrence. In single-phase flows, the flow velocity had a pronounced effect on determining the fines behavior, exhibiting from no or minimal fines detachment, through fines migration with no clogging, and to fines migration accompanying pore-clogging with increasing flow velocity. In two-phase flows with mixed gas–water fluids, the presence of gas–water interfaces clearly promoted pore-clogging because the fines were readily collected at gas–water interfaces, resulting in high particle concentration at the menisci. The particle-level force analysis also corroborates the experimental observations, showing that the drag force primarily determined by the flow velocity plays a significant role in the fines detachment against the particle weight in the single-phase flows. In contrast, the gas–water interfacial tension overwhelms the drag force and the particle weight, and thereby, governs pore-clogging behaviors in mixed fluid flow conditions. The presented results provide insights into pore-scale mechanisms of pore-clogging induced by fines migration, which is associated with gas production in HBS, as mixed fluids flow can accompany fines detachment, fines migration, and pore-clogging near wellbores. | - |
dc.language | English | - |
dc.publisher | ELSEVIER | - |
dc.title | Fines migration and pore clogging induced by single- and two-phase fluid flows in porous media: From the perspectives of particle detachment and particle-level forces | - |
dc.type | Article | - |
dc.identifier.wosid | 000537266600002 | - |
dc.identifier.scopusid | 2-s2.0-85068096036 | - |
dc.type.rims | ART | - |
dc.citation.volume | 23 | - |
dc.citation.beginningpage | 100131 | - |
dc.citation.publicationname | GEOMECHANICS FOR ENERGY AND THE ENVIRONMENT | - |
dc.identifier.doi | 10.1016/j.gete.2019.100131 | - |
dc.contributor.localauthor | Kwon, Tae-Hyuk | - |
dc.contributor.nonIdAuthor | Lee, Joo Yong | - |
dc.contributor.nonIdAuthor | Jung, Jongwon | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | gas-water interface | - |
dc.subject.keywordAuthor | Particle detachment | - |
dc.subject.keywordAuthor | Fines migration | - |
dc.subject.keywordAuthor | Pore clogging | - |
dc.subject.keywordAuthor | Multi-phase flow | - |
dc.subject.keywordAuthor | Hydrate-bearing sediments | - |
dc.subject.keywordPlus | HYDRATE-BEARING SEDIMENTS | - |
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