Distribution of thermogenic methane in Carboniferous coal seams of the Donets Basin (Ukraine): “Applications to exploitation of methane and forecast of mining hazards”

Accumulation of coal-bed methane in the south-west part of the Upper Silesian Coal Basin (southern Poland)

“…There, the upper methane zone reflects the local stratigraphy in the main whereas the lower zone near the fault is more clearly a reflection of rock-type and tectonics. Similar controls have been described recently in the Donets Basin in the Ukraine (Alsaab et al, 2009) and in the Ordos Basin in China (Yao et al, 2009).…”

Coal mine methane: A review of capture and utilization practices with benefits to mining safety and to greenhouse gas reduction

“…Therefore, it would seem likely that such faults could easily become pathways for gas emissions into mine workings from adjacent source beds. Alsaab et al (2009) presented a study to estimate the production of methane, to define its migration paths and storage in formations, and to forecast mining hazards in the Donets basin (Donbass), Ukraine. The authors indicated that in the Donets-Makeevka area, where specific methane emissions are~60 m 3 /ton, gas migrated along faults, and gas accumulations were mostly close to structural deformations and in the hanging walls of reversed faults.…”

A method for measuring coalbd methane content in coal strata without the loss of the gas

“…This will help to reveal spatial variation of the gas content, as it may vary at different parts of the rock mass or a coal seam. For example, micro-faults concentrate extra amount of the gas (Alsaab et al, 2009;Boothroyd, 2017) that increases probability of the bursts. Comparison of the measured in different sites results can be made after their correction using formula (5).…”