Changes

==CBM Production==

==CBM Production==

Methane which trapped in microporosity can be production by dewatering. Dewatering is process to displace methane with using water. Methane pulled to well bore with decreasing formation pressure. Water than moving into well bore with methane inside of water. And then water and methane separated, methane will be save in storage and water will be injected again to subsurface. CBM has slow rate production. To increase production usually stimulated with hidrolic fracture to increase permeability of coal (Figure 3).

Methane trapped in microporosity can be produced by dewatering. Dewatering is a process to displace methane using water. Methane pulled to well bore with decreasing formation pressure. Water than moving into well bore with methane inside of water. And then water and methane separated, methane will be save in storage and water will be injected again to subsurface. CBM has slow rate production. To increase production usually stimulated with hydrolic fracture to increase permeability of coal ([[:File:Figure 3 cbm production.JPG|Figure 3]]).

[[File:Figure 3 cbm production.JPG|500px|thumbnail|center|Figure 3 Coal Bed Methane Production. Adapted from Al-Jubari<ref>Al-Jubary et al. 2009. ''Oilfield Review Summer 2009''.21: Schlumberger</ref>]]  

[[File:Figure 3 cbm production.JPG|500px|thumbnail|center|{{figure number|3|}}Coal Bed Methane Production. Adapted from Al-Jubari<ref>Al-Jubary et al. 2009. ''Oilfield Review Summer 2009''.21: Schlumberger</ref>]]

==Future CBM==

==Future CBM==