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dc.contributor.author
Yeste, Luis Miguel
dc.contributor.author
Varela, Augusto Nicolás
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dc.contributor.author
Viseras, César
dc.contributor.author
Mcdougall, Neil D.
dc.contributor.author
García García, Fernando
dc.date.available
2022-09-15T12:03:20Z
dc.date.issued
2020-06
dc.identifier.citation
Yeste, Luis Miguel; Varela, Augusto Nicolás; Viseras, César; Mcdougall, Neil D.; García García, Fernando; Reservoir architecture and heterogeneity distribution in floodplain sandstones: Key features in outcrop, core and wireline logs; Wiley Blackwell Publishing, Inc; Sedimentology; 67; 7; 6-2020; 3355-3388
dc.identifier.issn
0037-0746
dc.identifier.uri
http://hdl.handle.net/11336/168849
dc.description.abstract
Exploration and production from formations deposited in low-gradient fluvial systems is typically associated with a high degree of uncertainty; a reflection of the inherent characteristics of these environments, notably the dominance of non-reservoir floodplain fines, rapid lateral facies variations and associated heterogeneities at different scales. However, for a field development to be successful it becomes crucial to know the location, geometry, dimensions and connectivity of the most permeable facies, related to the main channel and the associated proximal overbank deposits (crevasse-splay complexes). With the aim of addressing this problem, a multi-disciplinary study is presented, combining outcrop data, high-resolution sedimentological descriptions and advanced visualization techniques based on Digital Outcrop Models. This is compared with subsurface data from behind the outcrop (core, gamma ray and borehole image logs). The Mudstone–Sandstone Unit of the Triassic Red Beds of Iberian Meseta formation in south-central Spain was selected for the present study. The unit is characterized by the lateral and vertical stacking of four architectural elements: (i) channelized sandstone bodies; (ii) asymmetrical sigmoidal-shaped sandstone bodies; (iii) lobe-shaped to sheet-like sandstone bodies; and (iv) sheet-like mudstones. These elements represent meandering channel, crevasse-channel-splay and floodplain sub-environments, comprising a distal, low-gradient meandering fluvial system. Together with well-documented outcrop and core facies, calibrated log responses are also presented for the channel bodies (bell-shape Gamma Ray profile, random azimuths and low to high dip angles), the crevasse-splay bodies (funnel-shape Gamma Ray profile, unidirectional azimuths and low dip angles) and the floodplain deposits (serrated Gamma Ray profile, unidirectional azimuths and very low dip angles). The full integration of outcrop and subsurface datasets has enabled generation of a robust conceptual model with predictive potential when establishing the three-dimensional stacking of facies, distribution of heterogeneities, and the connectivity between reservoir rock geobodies of primary (channel) and secondary (crevasse complex) interest in this type of fluvial reservoir.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BOREHOLE IMAGE
dc.subject
CREVASSE-SPLAY
dc.subject
GAMMA RAY
dc.subject
MEANDERING FLUVIAL SYSTEM
dc.subject
OUTCROP/BEHIND OUTCROP CHARACTERIZATION
dc.subject
PALAEOSOLS
dc.subject
TIBEM
dc.subject
TRIASSIC
dc.subject.classification
Geología
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Reservoir architecture and heterogeneity distribution in floodplain sandstones: Key features in outcrop, core and wireline logs
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-15T02:17:25Z
dc.journal.volume
67
dc.journal.number
7
dc.journal.pagination
3355-3388
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Yeste, Luis Miguel. Universidad de Granada. Facultad de Ciencias. Departamento de Estratigrafía y Paleontología.; España
dc.description.fil
Fil: Varela, Augusto Nicolás. YPF - Tecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Viseras, César. Universidad de Granada. Facultad de Ciencias. Departamento de Estratigrafía y Paleontología.; España
dc.description.fil
Fil: Mcdougall, Neil D.. No especifíca;
dc.description.fil
Fil: García García, Fernando. Universidad de Granada. Facultad de Ciencias. Departamento de Estratigrafía y Paleontología.; España
dc.journal.title
Sedimentology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/sed.12747
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/sed.12747
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