How is coal seam gas transported?
To extract it, wells are drilled through the coal seams and the water pressure is reduced by extracting some of the water. This releases natural gas from the coal. The gas and water are separated and the gas is piped to compression plants for transportation via gas transmission pipelines.
How many CSG wells are there in Qld?
The number of CSG wells in Queensland has grown rapidly since 2010 to support Queensland’s LNG export industry. As at 30 June 2018 there was a total of 6,656 producing CSG wells in the state.
Is coal seam gas petroleum?
Every petroleum and gas project in Queensland requires a petroleum resource authority before it can begin any mining or exploration activities. This includes coal seam gas (CSG) projects. Individuals or corporations must apply for a petroleum resource authority to look for and produce petroleum and gas, including CSG.
What is coal seam gas used for in Australia?
CSG is natural gas (methane) which is sourced from underground coal formations, sometimes known as coal bed methane (See Figure 1). CSG is increasingly being used to supply gas to eastern Australia. In conventional gas fields, the gas exists in permeable sandstone reservoirs.
Is coal seam gas renewable?
Coal seam gas is a non-renewable energy resource that is a by-product of coal. The methane gas is contained within the coal seams by water from groundwater aquifers.
Where are coal seam gas found in Australia?
Australia’s major coal seam gas resources are found onshore in eastern Australia. Currently the largest known proven reserves are in Queensland’s Bowen and Surat basins. CSG has been produced from these areas since the mid 1990s. Until recently, the bulk of supply has been derived from the Bowen Basin.
Where is coal seam gas found in Australia?
What are the advantages of coal seam gas?
Natural gas extracted from coal seams can offer a number of benefits as an energy source: natural gas typically burns more efficiently than coal or oil and can emit less greenhouse gas at the points of extraction and combustion.
Why is coal seam gas bad for the environment?
Possible environmental effects: environmental groups have raised concerns that CSG development might cause environmental damage through release of untreated production water at the surface; damage to, and contamination of underground aquifers by hydraulic fracturing; damage to wildlife habitat in sensitive areas and …
Is coal seam gas good or bad?
Some chemicals used in drilling and hydraulic fracturing, and naturally occurring contaminants released from the coal seam during mining, could harm human health, given sufficient dose and duration of exposure. This potential harm includes increased risk of cancer.
Why do people oppose coal seam gas?
Coal seam gas projects have been widely opposed by farming communities in NSW because of concerns about the impact on underground water tables and the use of chemicals to assist in fracking the layers that contain the gas.
What is driving growth in coal seam gas production in Queensland?
Growth in coal seam gas (CSG) in Queensland has been rapid over the past 15 years, peaking at 1,634 wells drilled in 2013–14. This growth will support the more than $70 billion worth of investment in 3 liquefied natural gas (LNG) projects that will produce approximately 26 million tonnes per year of LNG from 2015 onwards.
Where does CSG gas come from in Queensland?
CSG production in the Bowen (Permian Coal Measures) and Surat (Jurassic Walloon Coal Measures) basins represents more than 90% of the total gas produced in the state. Many of Queensland’s basins with petroleum or coal also hold potential shale gas, tight gas or CSG resources.
How much money is spent on petroleum exploration in Queensland?
The level of petroleum exploration expenditure in Queensland was $751.6 million in 2014–15. Growth in coal seam gas (CSG) in Queensland has been rapid over the past 15 years, peaking at 1,634 wells drilled in 2013–14.
Where are the gas and oil resources in Queensland?
Many of Queensland’s basins with petroleum or coal also hold potential shale gas, tight gas or CSG resources. This includes the Laura, Maryborough, Eromanga, Cooper, Bowen, Galilee, Adavale and Georgina basins.