Gerwyn Williams, from UK Methane, has previously said coal bed methane extraction was already used safely worldwide.
BBC: Keynsham residents against natural gas extraction plans
In the fossil fuel industry, both enhanced oil recovery (EOR) and enhanced coal bed methane recovery use compressed CO2 as an input.
Not very long ago, coal bed methane, which currently accounts for almost 10% of all U.S. natural gas production, was considered too expensive for commercial production.
But others believe the methane leaks negate any benefits over coal, since methane is a highly potent greenhouse gas.
In June the court ruled that the federal government could not claim to own coal-bed methane on land where it holds rights over the coal itself but leaves other things to the homesteader.
In 2007 Consol bought rights to develop coal-bed-methane on 1 million acres controlled by rival coal giant Peabody Energy, and formed a smaller partnership with Massey Energy.
This brings yawns from the multinational companies, which snubbed the whole idea of exploiting coal-bed methane.
It owns 200 miles of gas pipelines and operates coal-bed methane gas wells in the Powder River Basin of Wyoming.
Now others are attracted: no fewer than 17 states, including many in the Ohio River basin, are studying coal-bed methane production.
The average coal-bed methane shaft in Wyoming produces only about 166, 000 cubic feet (4, 700 cubic metres) of useful stuff each day.
Colorado's San Juan basin began tapping coal-bed methane early in the 1980s.
Unconventional sources of oil and gas that are set for further exploitation include Canada's tar sands, shale and coal-bed methane deposits around the world.
The Energy Information Administration (EIA) puts it at around 37tcm of recoverable reserves, two-thirds of which is shale gas and the rest tight gas and coal-bed methane.
ECONOMIST: Shale gas is giving a big boost to America��s economy
"As we can see from the experience in the US, the exploration of shale gas and coal-bed methane has the potential to raise billions of pounds, resulting in reduced energy bills, " he said.
Coal reservoirs contain methane.
FORBES: Slurring Natural Gas With Flaming Faucets And Other Propaganda
At 01:30 on Tuesday a methane and coal dust explosion occurred in the pit's South District.
Beside beefing up the rules to detect explosive methane or coal dust, the proposed law would make it a felony to avert safety standards and to give advance warnings that inspectors were on the premises.
FORBES: Federal Prosecutors Drilling Deep for Justice in Coal Mining Tragedy
Green aficionados are familiar with the statistic that the sun bathes the Earth in trillions of barrels of energy (in oil equivalent terms), and less familiar with the fact that total known hydrocarbon resources are also countable in the trillions of barrels (from the oil-sands and ultra-deep-water sub-salt fields, to methane hydrates and coal, not to mention shale gas).
Mining experts said it could have been a methane gas explosion, a coal dust explosion, or a combination of both.
Enterprises are being pressed to change over from coal to cleaner-burning natural gas and methane, and to be more energy-efficient by modernizing their plant equipment in the switch.
Methane trapped in the workings of a former Nottinghamshire coal mine could be used to create electricity.
While methane is a cleaner source of energy than oil or coal when burnt, on its own it is an unusually powerful heat-trapping agent -- perhaps 20 times more potent than carbon dioxide.
For instance, if we are talking about natural gas, in this case, fossil methane, we are talking about a whole different ball game than coal.
Moreover, although controversial, life-cycle analysis indicates that fugitive methane emissions make shale gas obtained by hydraulic fracturing as carbon-intensive as coal.
FORBES: Carbon Tax: Will Tweedle Dum Snatch Defeat From the Jaws of Victory?
This gas contains approximately 80% of the original energy content of the coal, and is a combination of hydrogen, carbon monoxide, carbon dioxide, and methane.
FORBES: Underground Coal Gasification: A Trend Worth Watching
But there's no denying that burning natural gas (methane, that is) produces less carbon dioxide per unit of energy than burning coal.
Natural gas emits half as much carbon dioxide as coal when used to make electricity, though the calculation fails to take into account the release of methane from natural-gas wells and pipelines, which also contributes to climate change.
WSJ: Rise in U.S. Gas Production Fuels Unexpected Plunge in Emissions
Without any intervention from politicians or environmentalists societies that progress have been using m ore fuels that have less carbon with higher energy density (1 kg of wood fuels a light bulb for 1 day, 1 kg of coal fuels a light bulb for 4 days, 1 kg of crude oil for 5 days, 1kg of methane for 6 days and 1 kg of uranium for over 140 years).
应用推荐