Frequent question: What is coal seam gas extraction?

Coal seam gas is natural gas found in coal deposits, typically 300-600 metres underground. … 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.

What is coal seam gas mining?

Coal seam gas (CSG) mining is a risky, invasive form of unconventional gas mining. Coal seam gas extraction usually involves tens of thousands of gas wells, with roads, pipelines, compressor stations, wastewater dams, and other infrastructure. A CSG project can spread across hundreds of thousands of hectares of land.

Is coal seam gas the same as fracking?

Coal seam gas (CSG) and the gas that comes from shales are chemically very similar. They generate the same amount of heat and CO₂ when burned in your heater or at an electricity power plant. … Shale reservoirs always require fracking, while perhaps only half of coal seam gas reservoirs require fracture stimulation.

Is coal seam gas good or bad?

Coal seam gas is bad for the environment and we should all protest against its use. Genetically modified foods are a part of multinational plans to take over the world’s food supply. Wind farms are dangerous to human health and should be restricted.

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How is coal seam gas formed?

Coal seam gas (CSG) is primarily methane – a colourless and odourless gas, found in coal deposits formed over millions of years from fallen trees and other plant matter. Natural gas collects in underground coal seams by bonding to the surface of coal particles.

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 …

Why is coal seam gas good?

Using CSG to generate electricity reduces CO2 emissions by up to 70 per cent compared with coal, and gas is critical to us meeting our greenhouse reduction targets. Gas is also the perfect partner to back up intermittent renewable energy sources such as wind or solar.

Is coal seam gas renewable?

Coal seam gas is a non-renewable energy resource that is a by-product of coal. It is a ‘pure’ and ‘non-toxic’ gas and for this reason has attracted a lot of commercial interest. During the process of coal formation, biogenic and thermogenic methane gas forms.7 мая 2012 г.

How is coal seam gas used?

Coal seam gas is natural gas found in coal deposits, typically 300-600 metres underground. … In some cases hydraulic fracturing, or ‘fracking’, is used to extract coal seam gas. Hydraulic fracturing is the process of injecting fluid under high pressure into a coal seam to widen existing fractures and create new ones.

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What does fracking mean?

Fracking is the process of drilling down into the earth before a high-pressure water mixture is directed at the rock to release the gas inside. Water, sand and chemicals are injected into the rock at high pressure which allows the gas to flow out to the head of the well.

Why fracking is bad?

Hydraulic fracturing, or “fracking,” is revolutionizing oil and gas drilling across the country. However, without rigorous safety regulations, it can poison groundwater, pollute surface water, impair wild landscapes, and threaten wildlife.

Is CSG a fossil fuel?

It is the most abundant fossil fuel, both in Australia and globally. Australia has the world’s fourth-largest coal reserves.

What is unconventional natural gas?

Unconventional natural gas includes shale gas, tight gas, coalbed methane, and gas-to-liquids. … Tight gas describes pockets of natural gas located within low-permeability reservoir rock such as sandstone or carbonate. Coalbed methane is methane gas located within a coal reservoir.

For what coal is used?

Coal is primarily used as fuel to generate electric power in the United States. The coal is burned and the heat given off is used to convert water into steam, which drives a turbine.

How is natural gas extraction?

Natural gas is most commonly extracted by drilling vertically from the Earth’s surface. From a single vertical drill, the well is limited to the gas reserves it encounters.

Who owns Arrow Gas?

Notes to editors: Arrow Energy is an incorporated joint venture between Shell (50%) and PetroChina (50%). QCLNG (QGC) is a Shell-operated joint venture between Shell (73.75%), CNOOC (25%) and Tokyo Gas (1.25%)

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