What is Coal Seam Gas (CSG)?

Methane gas can occur naturally within coal. It is bound to the coal through the pressure exerted by groundwater. When the pressure is reduced (by dewatering the coal), the methane disassociates from the coal and flows with the water to wells for collection and piping. The associated water drained from the coal seam, which is usually saline, is either evaporated in ponds or treated through a reverse osmosis process.

Did you know?

  • UCG means coal is accessed underground, without the need for a surface mine.
  • New technology, such as directional drilling, and demand for energy, are driving expansion in the Syngas industry.
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