Coal Seam Gas, CSG is also known as coal seam methane and this is found naturally within the coal deposits.
In the Queensland area the coal resources or 'basins' are home to many coal seams which are located at varying heights, both close to the surface as well as several hundred meters underground.
Coal Seam Gas is formed from the coal and has been held within the coal under pressure.
This gas is mainly composed of methane gas which is also an important component of natural gas.
CSG usually has very low levels of carbon dioxide and when compared to other natural gas deposits some times this claim can vary.
CSG refers to the methane that is absorbed into the solid matter or matrix of the coal.
It is called the "sweet gas" because of the fact that it lacks hydrogen sulphide.
The presence of this gas is popular as it is well known for it is prevalence in underground mining where it is deemed a serious risk against safety.
Coalbed Methane is often referred to as CBM and is distinct from typical sandstone or any other conventional gas reserve as the methane is stored with the coal by a process called absorption.
This methane is in a near liquid state which lines the pores of the coal from within (called the matrix).
There are open fractures in the coal as well called the 'cleats' which can also contain the free gas or can be saturated with water.
Unlike many of the other natural gases from the conventional reservoirs the coalbed methane contains a very little amount of the heavier hydrocarbons such as butane or propane and no natural gas condensate.
This gas does contain a few percents of carbon dioxide though.
It has been found that some coal seams like the ones at Illawarra Coal Measures situated in the New South Wales Gas Reserves, Australia.
This gas contains a little methane with the main coal seam gas being carbon dioxide.
CSG is being used today for many reasons and is fast becoming a major source of natural gas.
In the Queensland area the coal resources or 'basins' are home to many coal seams which are located at varying heights, both close to the surface as well as several hundred meters underground.
Coal Seam Gas is formed from the coal and has been held within the coal under pressure.
This gas is mainly composed of methane gas which is also an important component of natural gas.
CSG usually has very low levels of carbon dioxide and when compared to other natural gas deposits some times this claim can vary.
CSG refers to the methane that is absorbed into the solid matter or matrix of the coal.
It is called the "sweet gas" because of the fact that it lacks hydrogen sulphide.
The presence of this gas is popular as it is well known for it is prevalence in underground mining where it is deemed a serious risk against safety.
Coalbed Methane is often referred to as CBM and is distinct from typical sandstone or any other conventional gas reserve as the methane is stored with the coal by a process called absorption.
This methane is in a near liquid state which lines the pores of the coal from within (called the matrix).
There are open fractures in the coal as well called the 'cleats' which can also contain the free gas or can be saturated with water.
Unlike many of the other natural gases from the conventional reservoirs the coalbed methane contains a very little amount of the heavier hydrocarbons such as butane or propane and no natural gas condensate.
This gas does contain a few percents of carbon dioxide though.
It has been found that some coal seams like the ones at Illawarra Coal Measures situated in the New South Wales Gas Reserves, Australia.
This gas contains a little methane with the main coal seam gas being carbon dioxide.
CSG is being used today for many reasons and is fast becoming a major source of natural gas.
Source...