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Revista Facultad de Ingeniería
versão impressa ISSN 0121-1129
Resumo
MARINO-MARTINEZ, Jorge Eliécer e MOJICA-AMAYA, Ángela. Relation Between Coal Petrography and Gas Content in the Amagá Formation (Antioquia, Colombia). Rev. Fac. ing. [online]. 2014, vol.23, n.37, pp.33-43. ISSN 0121-1129.
The macerals influence with the gas content in three wells is investigated. The proximate analysis, and the vitrinite reflectance (Ro) were studied, besides the maceral compositiont analysis. The research concluded that vitrinite content in the wells exceed the Inertinite and the liptinite contents, reaching a 94% value, with a high volatile bituminous coal. The gas content goes from some minimum values, up to 100 SCF/ton. In the wells with intrusive presence, some data dispersion is noticed and the relationship between the variables is non-linear. Close to the intrusive, the Ro values increase up to near 5. With a depth increase, where there isn't any intrusive, it is noticed a linear increase between the gas content and Ro. The most influential factors in the basin are R o, the vitrinite %, and intrusions.
Palavras-chave : Coal Petrography; Macerals; Coal Gas Content; Vitrinite Reflectance; Amagá Formation; CBM.
