Underground Coal Gasification - defined
Underground Coal Gasification (UCG) is an alternative method of converting deep coal into gas underground using a series of boreholes operated remotely from the surface. Air or a combination of oxygen and steam are injected into the gasification panel within the coal seam. The coal is then heated and controlled reactions convert solid coal into product gas, known as “syngas”, which is extracted at the surface...
Coal Seam Gas & Fraccing - defined
Coal Seam Gas, also known as Coal Bed Methane (CBM), recovers gas from coal seams without utilising the energy within the coal itself. As the gas is held in fractures of underground coal seams by water and ground pressure, drilling into the coal seam and pumping groundwater to the land surface is necessary for gas to be extracted using CSG techniques. This process artificially lowers groundwater pressure in order to promote gas flow.
Fracture Stimulation, known as “fraccing” or "fracking", is a process used to fracture underground coal seams in order to increase the flow of gas and water. A fluid called “fraccing fluid” or “frac fluid” is pumped down well bores at high pressure to fracture the coal seam. The fractures create a pathway for the gas and water from underground to be extracted through the gas well. Carbon Energy does not use these processes.
