Gerwyn Williams, from UK Methane, has previously said coal bed methane extraction was already used safely worldwide.
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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.
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.
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.
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"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.
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.
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