Resumo

MOJICA, Lucila  e  MARINO, Jorge. EXPLORATION STATUS AND COAL BED METHANE (CBM) POSIBILITIES IN BOYACA (COLOMBIA). bol.geol. [online]. 2013, vol.35, n.2, pp.31-43. ISSN 0120-0283.

In the Boyacá Province is well known the presence of coal bed gas due to the frequent explosion, as a result of those accidents and to the need of having a better knowledge of this non-conventional resource, the coal bed gas information was gathered and analyzed from three areas. For sample taking and information analysis, the USBM method was followed. The average contents in the Checua-Lenguazaque areas are between 2 and 88 scf/ton, in the Tunja-Paipa-Duitama area are found between 2-65 scf/ton, and in the Sogamoso-Jerico area the content are found between 1-275 scf/ton. The higher contents are found in the northern part of the Sogamoso-Socotá Area (Tasco-Socotá) at depths exceeding 300 m. The content variability and the low reserves of about 27 Giga scf per area, induce to increase the reserves and increase the understanding of the gas contents; for that, it is recommended to drill additional wells to better assess the content at different depths and on large structures, especially synclines.

Palavras-chave : coal; rank; methane; canister; Guaduas; Boyacá.

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