here u go johno........
This broken coal is difficult to drill and commonly has unproductive permeabilities (less than 1 mD). However, there is at least one commercial play in China: the Blue Flame CBM Co. in the Qinshui Basin has three projects that produced an average of 27 MMcf/d in 2006 (the permeability is 4 to 10 mD)
hope that helps.
god bless....lol!
