Influence of tubing/oil-blanket lifting on construction and geometries of two-well-horizontal salt caverns

Underground TWH (Two-well-horizontal) salt caverns are an ideal storage medium for large-scale energy storage, having large usable volumes and high construction efficiency. Different tubing/oil-blanket lifting techniques relate to different solution mining rates and help define cavern geometries bas...

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Autores: Wan, Jifang, Peng, T., Yuan, G., Ban, F., Jurado, Maria José, Xia, Yan
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/223552
Acceso en línea:http://hdl.handle.net/10261/223552
Access Level:acceso abierto
Palabra clave:Thinly bedded rock salt deposits
Cavern expansion
Construction rate
Two-well-horizontal cavern
Salt cavern
Tubing/oil-blanket lifting
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spelling Influence of tubing/oil-blanket lifting on construction and geometries of two-well-horizontal salt cavernsWan, JifangPeng, T.Yuan, G.Ban, F.Jurado, Maria JoséXia, YanThinly bedded rock salt depositsCavern expansionConstruction rateTwo-well-horizontal cavernSalt cavernTubing/oil-blanket liftingUnderground TWH (Two-well-horizontal) salt caverns are an ideal storage medium for large-scale energy storage, having large usable volumes and high construction efficiency. Different tubing/oil-blanket lifting techniques relate to different solution mining rates and help define cavern geometries based on the previous experience of SWV (Single-well-vertical)-cavern construction. In this study, we present a complete and comprehensive evaluation of the influence of a particular tubing/oil-blanket lifting method on TWH-cavern leaching and geometric shapes. Based on the solution mining numerical simulation original program TWHSMC V2.0 (Two-well-horizontal solution mining cavern V2.0), we carried out a set of numerical simulations, such that the cavern construction process is real-time display and easily recorded. The results demonstrate that with a matching water injection rate, the outlet brine concentration is not sensitive to tubing/oil-blanket lifting. During construction of a horizontal cavern with a volume of 300,000 m3, lifting tubing on both sides simultaneously yields the shortest leaching time (near 307 days). Only lift the tubing on one side will form an asymmetrical cavern, with the height of the cavity near the side being higher than on the opposite side. The lower the frequency of tubing and oil blanket lifting, the smaller the height/length ratio coefficient is, meaning the cavern is closer to the horizontal. Therefore, when constructing TWH-caverns in thinly-bedded rocksalt formations, simultaneously lifting the both sides of tubing and oil-blanket, in addition to a lower lifting rate, are required. This research provides theoretical basis and engineering guidance for TWH-cavern constructing in thinly bedded rocksalt formations.The authors would gratefully like to acknowledge the financial support from the National Natural Science Foundation of China Project (No. 11705255), Chinese Academy of Sciences “Light of West China” Program (No. 29Y728010), Scientific Research and Technology Development Project of CNPC Engineering Technology R&D Company Limited (No. CPET201908) and PetroChina Scientific Research and Technology Development Project (No. 2019B-3205)Peer reviewedElsevierNational Natural Science Foundation of ChinaChinese Academy of SciencesPetroChinaCNPC Engineering Technology R&D Company LimitedJurado, Maria José [0000-0001-8165-2729]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/223552reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.tust.2020.103688Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2235522026-05-22T06:33:51Z
dc.title.none.fl_str_mv Influence of tubing/oil-blanket lifting on construction and geometries of two-well-horizontal salt caverns
title Influence of tubing/oil-blanket lifting on construction and geometries of two-well-horizontal salt caverns
spellingShingle Influence of tubing/oil-blanket lifting on construction and geometries of two-well-horizontal salt caverns
Wan, Jifang
Thinly bedded rock salt deposits
Cavern expansion
Construction rate
Two-well-horizontal cavern
Salt cavern
Tubing/oil-blanket lifting
title_short Influence of tubing/oil-blanket lifting on construction and geometries of two-well-horizontal salt caverns
title_full Influence of tubing/oil-blanket lifting on construction and geometries of two-well-horizontal salt caverns
title_fullStr Influence of tubing/oil-blanket lifting on construction and geometries of two-well-horizontal salt caverns
title_full_unstemmed Influence of tubing/oil-blanket lifting on construction and geometries of two-well-horizontal salt caverns
title_sort Influence of tubing/oil-blanket lifting on construction and geometries of two-well-horizontal salt caverns
dc.creator.none.fl_str_mv Wan, Jifang
Peng, T.
Yuan, G.
Ban, F.
Jurado, Maria José
Xia, Yan
author Wan, Jifang
author_facet Wan, Jifang
Peng, T.
Yuan, G.
Ban, F.
Jurado, Maria José
Xia, Yan
author_role author
author2 Peng, T.
Yuan, G.
Ban, F.
Jurado, Maria José
Xia, Yan
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv National Natural Science Foundation of China
Chinese Academy of Sciences
PetroChina
CNPC Engineering Technology R&D Company Limited
Jurado, Maria José [0000-0001-8165-2729]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Thinly bedded rock salt deposits
Cavern expansion
Construction rate
Two-well-horizontal cavern
Salt cavern
Tubing/oil-blanket lifting
topic Thinly bedded rock salt deposits
Cavern expansion
Construction rate
Two-well-horizontal cavern
Salt cavern
Tubing/oil-blanket lifting
description Underground TWH (Two-well-horizontal) salt caverns are an ideal storage medium for large-scale energy storage, having large usable volumes and high construction efficiency. Different tubing/oil-blanket lifting techniques relate to different solution mining rates and help define cavern geometries based on the previous experience of SWV (Single-well-vertical)-cavern construction. In this study, we present a complete and comprehensive evaluation of the influence of a particular tubing/oil-blanket lifting method on TWH-cavern leaching and geometric shapes. Based on the solution mining numerical simulation original program TWHSMC V2.0 (Two-well-horizontal solution mining cavern V2.0), we carried out a set of numerical simulations, such that the cavern construction process is real-time display and easily recorded. The results demonstrate that with a matching water injection rate, the outlet brine concentration is not sensitive to tubing/oil-blanket lifting. During construction of a horizontal cavern with a volume of 300,000 m3, lifting tubing on both sides simultaneously yields the shortest leaching time (near 307 days). Only lift the tubing on one side will form an asymmetrical cavern, with the height of the cavity near the side being higher than on the opposite side. The lower the frequency of tubing and oil blanket lifting, the smaller the height/length ratio coefficient is, meaning the cavern is closer to the horizontal. Therefore, when constructing TWH-caverns in thinly-bedded rocksalt formations, simultaneously lifting the both sides of tubing and oil-blanket, in addition to a lower lifting rate, are required. This research provides theoretical basis and engineering guidance for TWH-cavern constructing in thinly bedded rocksalt formations.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/223552
url http://hdl.handle.net/10261/223552
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.tust.2020.103688
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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