The paper presents an evaluation of methane production from coal seams. The Warszowice-PawłowicePółnoc deposit was selected for numerical modelling of methane production. The numerical model was made for a fragment of this deposit of about 2 km2. The numerical model was constructed for 6 seams. Three deposits were selected for simulation of methane production. Three horizontal boreholes were designed within the model area, referring to the existing Suszec-19 borehole. A number of simulations related to methane production from the selected deposits were performed. They included different variants of the number of boreholes and also took into account the z-pinnate method. The analyses proved that the most advantageous is the production of 3 directional boreholes simultaneously with the z-pinnate method. For this variant the degree of methane production was 21.9% of the estimated resources.
Wątor, Anna; Chećko, Jarosław; and Urych, Tomasz
"Optimization of the Distribution of Drilling Boreholes in Methane Production from Coal Seams,"
Journal of Sustainable Mining: Vol. 19
, Article 6.
Available at: https://doi.org/10.46873/2300-3960.1024
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