Page 304 - Advanced Mine Ventilation

Postmining Degasification of Coal Mines 281

Figure 16.10 Gas production from a single gob well.

Problem

1. Find out the value of “n” and A for the four gob well production curves presented in
Fig. 16.10. Calculate the total gas produced by each gob well in the first 100 days.
Hint: Extend the curves to intercept “y” axis. Divide Q by 10 to get “A” values.

References

[1] Thakur PC. Advanced reservoir and production engineering for coal bed methane. Elsevier;
2017. p. 210.
[2] Gunther J, Belin J. Prevision du degasment du grisou en taille pour le grisements en Pla-
teure. In: 12th international conference on coal mine safety and research. Germany: Dort-
mund; 1967.
[3] Lidin GD, et al. Control of methane in coal mines. English translation by Israel Program for
Scientific Translations, Jerusalem. 1964 [original in Russian, 1961].
[4] Winter K. Extent of gas emission zones influenced by extraction. In: 16th international
conference on coal mine safety and research, Washington, DC; 1975.