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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.
The coal seam gas fields approved to date in Queensland will cover tens of thousands of square kilometres with an industrial grid of wells, pipelines, roads and water treatment plants. They will feed three huge gas processing plants being constructed within the Great Barrier
Coal seam gas CSG is currently the dominant driver of drilling activities and gas production in Queensland. Exploration for other petroleum sources, such as shale gas and tight gas, is only just beginning in Queensland. The presence of gas in deeper parts of
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 ...
These coal seams are discrete and not continuous over large distances; they generally form only 10 per cent of the total thickness of the coal measures. Small amounts of gas collect in the many gaps, called cleats, within the coal deposits. The gas is bonded to
2 · 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. CSG, however, is found in coal seams, where underground water pressure ...
Growth in coal seam gas activities has grown rapidly since then to 11,444 coal seam gas wells in Queensland at the end of the 2018–19 financial year. Coal seam gas is natural gas (mostly methane) sourced from coal deposits (coal seams), which are typically 400 to 1,000 metres underground.
Eastern Australia has very large reserves of coal seam gas (CSG) in highpermeability reservoirs that can deliver gas to the wellbores faster than coal reservoirs elsewhere. CSG projects in Queensland are now playing a major role in Australia''s energy sector and Queensland has been a pioneer in using coal seam gas to produce LNG.
There are currently ten LNG production facilities in Australia – five in Western Australia, three in Queensland, and two in the Northern Territory. Australia exports around 80 million tonnes of LNG per year. LNG plant in Gladstone, QLD. Image: The Australian Greens, licensed under (CC BYNCND )
To date, only coal seam gas (CSG) in eastern Australia has been extracted on a commercial basis. As such, many of the Commonwealth (national) level regulatory and policy reforms have been focused toward CSG, with little attention at Commonwealth level paid to the vast shale gas resources that Australia possesses.
The Surat Basin, Queensland, Australia, is a hotspot of methane emissions for Australia. Within the Surat Basin there are over 6000 coal seam gas wells with extensive supporting pipeline networks and processing plants. The region also supports a multibillion
2 · Coal seam gas (CSG) is a polarising issue in some communities. Proponents argue that CSG is a vital energy resource, necessary for continued gas supply. Opponents claim that CSG could have serious environmental and social impacts. CSG is natural gas (methane) which is sourced from underground coal ...
For example, coal seam gas (CSG) makes up around 30 per cent of the gas used in eastern Australia and up to 70 per cent of the gas used in Queensland. There are three types of gas in Australia which require more sophisticated methods of extraction so are considered unconventional: CSG, shale gas and tight gas – from tight sandstones.
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