Pore Structure Characteristics and Gas Storage Potential of the Cretaceous La Luna Formation, Middle Magdalena Valley Basin, Colombia
The rocks of interest in the present study (mudstones) show inherently a heterogeneous pore-size distribution in the matrix. They can present organic and inorganic pores and the transport mechanism through pores is different, and, therefore, it is necessary to describe their organic and inorganic p...
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doaj-6b43b45fbb4e4fa4bd324ebf8bdc708a2020-11-25T03:29:26ZengUniversidad EAFITIngeniería y Ciencia1794-91652256-43142020-06-01163110.17230/ingciencia.16.31.8Pore Structure Characteristics and Gas Storage Potential of the Cretaceous La Luna Formation, Middle Magdalena Valley Basin, ColombiaEfraín Casadiego-Quintero0Carlos Alberto Rios-Reyes1Fundación Universitaria Agraria de ColombiaUniversidad Industrial de Santander The rocks of interest in the present study (mudstones) show inherently a heterogeneous pore-size distribution in the matrix. They can present organic and inorganic pores and the transport mechanism through pores is different, and, therefore, it is necessary to describe their organic and inorganic porosity. This work uses different microscopy techniques to characterize mudstones from the Galembo Member of the Cretaceous La Luna Formation, Middle Magdalena Valley Basin, Colombia. These rocks present several pore types, including interparticle pores due to flocculation of clay minerals, organoporosity due to burial and thermal maturity, intraparticle pores from organisms, intraparticle pores within mineral grains, and microchannels and microfractures. The existence of interconnected pores in such complex fracture-pore system provides effective pathways for primary gas migration and it also provides a storage space for the residual hydrocarbon in mudstones, which is important for the primary migration and storage in gas reservoir rocks. The pore connectivity is high and increases towards the top of the sedimentary sequence. https://publicaciones.eafit.edu.co/index.php/ingciencia/article/view/6066Gas reservoirmineralogypetrographymicrostructuralLa Luna Formation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Efraín Casadiego-Quintero Carlos Alberto Rios-Reyes |
spellingShingle |
Efraín Casadiego-Quintero Carlos Alberto Rios-Reyes Pore Structure Characteristics and Gas Storage Potential of the Cretaceous La Luna Formation, Middle Magdalena Valley Basin, Colombia Ingeniería y Ciencia Gas reservoir mineralogy petrography microstructural La Luna Formation |
author_facet |
Efraín Casadiego-Quintero Carlos Alberto Rios-Reyes |
author_sort |
Efraín Casadiego-Quintero |
title |
Pore Structure Characteristics and Gas Storage Potential of the Cretaceous La Luna Formation, Middle Magdalena Valley Basin, Colombia |
title_short |
Pore Structure Characteristics and Gas Storage Potential of the Cretaceous La Luna Formation, Middle Magdalena Valley Basin, Colombia |
title_full |
Pore Structure Characteristics and Gas Storage Potential of the Cretaceous La Luna Formation, Middle Magdalena Valley Basin, Colombia |
title_fullStr |
Pore Structure Characteristics and Gas Storage Potential of the Cretaceous La Luna Formation, Middle Magdalena Valley Basin, Colombia |
title_full_unstemmed |
Pore Structure Characteristics and Gas Storage Potential of the Cretaceous La Luna Formation, Middle Magdalena Valley Basin, Colombia |
title_sort |
pore structure characteristics and gas storage potential of the cretaceous la luna formation, middle magdalena valley basin, colombia |
publisher |
Universidad EAFIT |
series |
Ingeniería y Ciencia |
issn |
1794-9165 2256-4314 |
publishDate |
2020-06-01 |
description |
The rocks of interest in the present study (mudstones) show inherently a heterogeneous pore-size distribution in the matrix. They can present organic and inorganic pores and the transport mechanism through pores is different, and, therefore, it is necessary to describe their organic and inorganic porosity. This work uses different microscopy techniques to characterize mudstones from the Galembo Member of the Cretaceous La Luna Formation, Middle Magdalena Valley Basin, Colombia. These rocks present several pore types, including interparticle pores due to flocculation of clay minerals, organoporosity due to burial and thermal maturity, intraparticle pores from organisms, intraparticle pores within mineral grains, and microchannels and microfractures. The existence of interconnected pores in such complex fracture-pore system provides effective pathways for primary gas migration and it also provides a storage space for the residual hydrocarbon in mudstones, which is important for the primary migration and storage in gas reservoir rocks. The pore connectivity is high and increases towards the top of the sedimentary sequence.
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topic |
Gas reservoir mineralogy petrography microstructural La Luna Formation |
url |
https://publicaciones.eafit.edu.co/index.php/ingciencia/article/view/6066 |
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