Brittleness Index of High-Rank Coal Reservoir and Its Influencing Factors in Mabidong Block, Qinshui Basin, China

Table 2

Coal brittleness index seams with different coal-body structures in the Mabidong block.

Well number/coal seam	Primary structure	Well number/coal seam	Cataclastic structure	Well number/coal seam	Granulated structure
Ma 1/No. 3	58.18-68.06	Ma 69/No. 3	71-75.1	Ma 11/No. 3	79.7-83.4
Ma 17/No. 3	56.6-73.2	Ma 1/No. 15	76.24-77.13	Ma 27/No. 3	75.4-84.2
Ma 58/No. 3	61.4-70.9	Ma 59/No. 15	71.8-72.33	Ma 66/No. 3	76.5-89
Ma 67/No. 3	62.9-67.9			Ma 68/No. 3	77.09-77.44
Ma 6/No. 15	68.25-75.02			Ma 58/No. 15	75.92-82.4
Ma 25/No. 15	72.58-73.77			Ma 66/No. 15	79.87-80.15
Average	63.3-71.48	Average	73.01-74.85	Average	77.41-82.77