SciELO - Scientific Electronic Library Online

 
 issue38Geology of the southern part of Sabanalarga Batholith.: Implications for terrane theory in the west of ColombiaEvaluation by different methodologies of collapse potential of some residual soils in Aburrá and San Nicolás Valleys author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Boletín de Ciencias de la Tierra

Print version ISSN 0120-3630

Abstract

CARO, Luis D.; BLANDON, Astrid  and  MOLINA, Jorge M.. Vertical and lateral variation of gas content associated with coal seams. Bol. cienc. tierra [online]. 2015, n.38, pp.49-59. ISSN 0120-3630.  https://doi.org/10.15446/rbct.n38.47142.

Vertical and lateral gas content variation associated within a coal seam and its relation to porosity and geology was researched. Several seams of high sub-bituminous and bituminous coal volatile C from Amaga formation were selected. Channel samples were taken and were subdivided into the different plies (lithotypes associations), performing proximal analysis; Petrographic (maceral counting and determining the vitrinite reflectance); furthermore desorption testing and porosity. The higher gas content was in intermediate plies. It was possible to identify that the gas content, and micropores and mesopores has a direct relationship; also, there is a direct relationship between the content of liptinites macerals and gas content. In some cases, these relationships were not clear, since there is influence of geological factors such as the presence of faults favor migration and degassing of the mantles studied.

Keywords : Coal seam; ply; coal bed methane; vertical and lateral variation.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )