Laboratory Study of the Displacement Coalbed CH₄ Process and Efficiency of CO₂ and N₂ Injection

Table 1

Properties of coal sample.

Sample no.	Proximate analysis/%				Maceral/%			𝑅0/%
	𝑀ad	𝐴𝑑	𝑉daf	𝐹𝐶𝑑	Vitrinite	Inertinite	Exinite
No. 1	1.90	7.44	27.4	67.2	60.57	38.18	0	1.09