Estudio comparativo de la composición geoquímica de extractos de la formaciones Simití y La Luna en la cuenca del valle medio del Magdalena

Autores:

Caicedo Quintero, Julieth Angelica
Lopez Guerra, Jonathan

Tipo de recurso:

http://purl.org/coar/version/c_b1a7d7d4d402bcce

Fecha de publicación:

2016

Institución:

Universidad Industrial de Santander

Repositorio:

Repositorio UIS

Idioma:

spa

OAI Identifier:: oai:noesis.uis.edu.co:20.500.14071/34995

Acceso en línea:: https://noesis.uis.edu.co/handle/20.500.14071/34995
https://noesis.uis.edu.co

Palabra clave:: Formación Simití
Formación La Luna
Cuenca Valle Medio Del Magdalena
Cromatografía De Gases
Biomarcadores
Carbono Orgánico Total.
The aim of this work was the comparison of geochemical characteristics of Simití and La Luna formations. The evaluation of the geochemical composition of La Luna and Simití formations rocks and extracts was conducted by Pyrolysis Rock-Eval
Total Organic Carbon (TOC) and gas chromatography with FID and MSD detector
to determine similarities between them as a basis for more reliable oil-rock and oiloil correlations
in order to improve the definition and understanding of those recognized petroleum systems in the basin of the Middle Magdalena Valley. The geochemical evaluation of organic matter in samples from both formations showed that they have the necessary conditions to be considered source rocks; La Luna formation is associated from good to excellent source rock with TOC values between 2.27% and 5.01%
hydrogen index between 395 and 505 mg HC/TOC
and kerogen type II prone to oil; while Simití formation is associated with a favorably to very good source rock with TOC values between 0.63% and 2.48%
hydrogen index between 272 and 494 mg HC/TOC
and kerogen type II prone to oil and kerógeno type II-III prone to oil-gas. The geochemical evaluation of the extracts used for the characterization of the bitumen present in the La Luna and Simití formations indicated that both formations were deposited in an anoxic marine environment with input of organic matter of algal dominance; La Luna formation presents greater contribution of carbonate material and a lesser shale proportion
while in the Simití formation the opposite occurs. In regards to maturity and biodegradation
the Simití formation presents more maturity and less biodegradation than La Luna formation.

Rights

License: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

Estudio comparativo de la composición geoquímica de extractos de la formaciones Simití y La Luna en la cuenca del valle medio del Magdalena

Publicaciones similares