The maximum methane flow of the extraction borehole reached 4.9 m3/min and the average methane flow reached 1.9 m3/min.
But the environmental group, Friends of the Earth Scotland, claimed coal bed methane extraction carries many similar risks to the process of extracting shale gas by hydraulic fracturing.
For similar reasons, coalbed methane extraction is maligned by eco-activists as its "evil twin".
Coalbed methane extraction is a related method, which is actually at a more advanced stage in the UK.
In fact, coalbed methane extraction can itself involve fracking techniques – and in any case, if sufficient gas is discovered, the fracking of local shale could eventually follow.
The large ponds created by methane extraction near her ranch gave her pause, especially since some of the dead grouse were found on her property.
Also in recent months, ContourGlobal, a company based in New York, announced that it was building a $325 million methane extraction plant on Lake Kivu.
It is a 15-year-old drilling technique called coal-bed methane extraction, which can turn ranches and prairies into sprawling industrial zones, laced with wells, access roads, power lines, compressor stations and wastewater pits.
And in the next few weeks, the only active application in Scotland – for coal-bed methane extraction at Airth, near Falkirk – will land on Scottish government ministers' desks for a final decision.
theoretical maximum methane production.
