Coal bed Methane (Coal seam gas) found in coal beds is natural gas

Q.  Which of the following is/are true regarding Coal Seam Gas?

1) It is produced from coal bed methane.
2) It contains very little heavier hydrocarbons such as propane or butane.
- Published on 09 Sep 16

a. Only 1
b. Only 2
c. Both 1 and 2
d. Neither 1 nor 2

ANSWER: Only 2
 
  • Coalbed methane (CBM or coal-bed methane), coalbed gas, coal seam gas (CSG), or coal-mine methane (CMM) is a form of natural gas extracted from coal beds.
  • In recent decades it has become an important source of energy in United States, Canada, Australia, and other countries.
  • The presence of this gas is well known from its occurrence in underground coal mining, where it presents a serious safety risk.
  • Unlike much natural gas from conventional reservoirs, coalbed methane contains very little heavier hydrocarbons such as propane or butane, and no natural-gas condensate. It often contains up to a few percent carbon dioxide.

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