Showing posts with label fracking. Show all posts
Showing posts with label fracking. Show all posts

Sunday 6 November 2011

The worrying news that drilling for shale gas

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Fracking, earthquakes and the positive answer to shale gas


2 November 2011






The worrying news that drilling for shale gas probably did cause earthquakes near Blackpool is only part of our problem with ‘fracking’. The other big environmental elephant in the room is that shale gas is simply another greenhouse gas-pumping fossil fuel, and far from the ‘wonder gas’ it’s hyped as.










The report into this year’s unusual seismic activity in Lancashire - released today by Cuadrilla Resources, the British company exploring for natural shale gas in the Bowland Basin – concludes that: “It is highly probable that the hydraulic fracturing … did trigger a number of minor seismic events.”






It just serves to confirm one of our many fears about shale gas. As well as the earth tremors, and concerns over ground and surface water contamination attributed to shale gas drilling, there are of course also the greenhouse gas emissions associated with its extraction and the consequent burning of what is yet another carbon-emitting fossil fuel.






That’s why we’re calling in the first instance for a moratorium on shale gas extraction in the UK until the potential environmental risks around shale gas drilling have been properly researched and the right regulations have been put in place.






But we’re also reiterating that a new ‘dash for gas’ risks taking the world towards dangerous levels of climate change - increasing temperatures by at least 3.5°C according to a recent report by the International Energy Agency.






As Nick Molho, our head of energy policy, says: “We’re extremely concerned by the way shale gas is being painted as a ‘wonder gas’ that will slash energy bills in Britain and somehow help tackle climate change.






“Shale gas is still a fossil fuel, and a new dash for gas could see global temperatures skyrocket. There’s also no evidence that it will have a big impact on energy bills, which have in fact been driven up in recent years by a rising gas price.”






Our research - seen most recently in our Positive Energy report, which demonstrates how renewable sources of energy could meet between 60% and 90% of the UK’s electricity demand by 2030 - makes it clear that prioritising energy efficiency and renewables like wind, wave and tidal power, not shale gas, are the best way of reducing our disproportionate vulnerability to the gas price, and of genuinely tackling climate change, in the long term.






The government has to listen to the clear and sensible evidence and steer a straight course to a low-carbon future - resisting the siren calls of the fossil fuel industry


U.N. sponsor fracking



APPROPRIATE DEVELOPMENT OF SHALE GAS RESOURCES


In May 2011, the Shale Gas Production Subcommittee of the U.S. Department of Energy’s Secretary of Energy Advisory Board began exploring safe and environmentally sound methods of extracting natural gas from shale rock formations using hydraulic fracturing (commonly referred to as “fracking”) techniques.  The Subcommittee released its 90-day Interim Report on August 18, 2011.

The Interim Report recommends improvements in:
  • Availability of public information on shale gas operations;
  • Communication between state and federal regulators;
  • Standards to reduce the impact of fracking on air, water, land, and wildlife;
  • Public disclosure of fracking fluid chemicals;
  • Reduction of diesel engine use in the production process;
  • Information sharing among natural gas developers; and
  • Research and development of more effective fracking technologies.

To read the full report, click here.

A final report is expected on November 18, 2011.  More details on the U.S. Department of Energy’s work on shale gas development are available online at www.shalegas.energy.gov.
For comments from former Sen. Timothy E. Wirth, President of the UN Foundation and the Energy Future Coalition, on the need for leadership on natural gas and clean fuels, click here.

Wednesday 2 November 2011

Fracking tests near Blackpool 'likely cause' of tremors



Fracking tests near Blackpool 'likely cause' of tremors


Cuadrilla's Mark Miller: "There are procedures we can put in place to practise earthquake prevention"
It is "highly probable" that shale gas test drilling triggered earth tremors in Lancashire, a study has found.
But the report, commissioned by energy firm Cuadrilla, also said the quakes were due to an "unusual combination of geology at the well site".
It said conditions which caused the minor earthquakes were "unlikely to occur again".
Protesters opposed to fracking, a gas extraction method, said the report "did not inspire confidence".
Six protesters from campaign group Frack Off climbed a drilling rig at one of Cuadrilla's test drilling sites in Hesketh Bank, near Southport, ahead of the report.
They oppose the controversial extraction method which pumps water and chemicals underground at high pressure to shatter rock formations and release gas, claiming it can be unsafe.
Safety concerns
A spokesman for Lancashire Police said the force was "liaising with the site owners and the protesters to bring about a peaceful resolution".
Cuadrilla suspended its shale gas test drilling in June, over fears of links to the earthquakes.
One tremor of magnitude 2.3 hit the Fylde coast on 1 April, followed by a second of magnitude 1.4 on 27 May.

ANALYSIS

Cuadrilla Resources believes there are huge reserves of natural gas in layers of shale under Lancashire.
That is based on the testing it has already done, but an important part of its exploration work was put on hold when it had to suspend hydraulic fracturing, or fracking.
Even though today's report says it is highly probable that fracking did trigger two earth tremors earlier this year, the company believes it can resume that process safely- with some modifications to the way it works.
Some environmental groups opposed to shale gas are calling for a moratorium on fracking. It's not just the process itself that they're concerned about. They say large-scale gas extraction will lead to more reliance on fossil fuels rather than alternative energy sources.
The industry argues that there is big potential for a new home-grown energy source that could reduce gas prices and also provide new jobs.
A study by The British Geological Survey placed the epicentre for each quake about 500m away from the Preese Hall-1 well, at Weeton, near Blackpool.
The Geo-mechanical Study Of Bowland Shale Seismicity report, carried out by independent experts, said the combination of geological factors that caused the quakes was rare, and would be unlikely to occur together again at future well sites.
It said: "If these factors were to combine again in the future local geology limits seismic events to around magnitude 3 on the Richter scale as a worst-case scenario."
However, it said that "even the maximum seismic event is not expected to present a risk".
Mark Miller, chief executive officer of Cuadrilla Resources, said: "We unequivocally accept the findings of the independent report and we are pleased that there is no threat to people or property in the local area from our operations.
"We are ready to put in place the early detection system that has been proposed in the report so that we can provide additional confidence and security to the local community.
"Cuadrilla is working with the local and national authorities to implement the report's recommendations so we may resume our operations."
A spokesman for Frack Off said: "This report does not inspire confidence, they should have done their research before drilling began."
He added: "Can we believe anything else the industry says when it talks about the safety of fracking?"
Protesters have called for an end to fracking. There have been concerns that potentially carcinogenic chemicals could escape during the process and find their way into drinking water sources.
'Hopelessly naive'
"The contamination of irrigation water means that everyone's food supplies could potentially be affected," the Frack Off spokesman added.
Friends of the Earth's senior climate campaigner Tony Bosworth said: "This report shows fracking for shale gas caused earth tremors in Lancashire - experience in the US shows it could also pollute air and water supplies.
"Extracting shale gas would suck vital funding away from clean and safe energy alternatives that could create thousands more UK jobs.
Map of the area where testing has taken place
"An early seismic detection system won't be enough to make local people feel safe - there should be no more fracking in Britain until the health and environmental impacts are fully understood."
Doug Parr, chief scientist at Greenpeace, added: "Anyone who believes shale gas is the solution to our energy needs is being hopelessly naive.
"There are significant unknowns about the local and global impacts of fracking, illustrated by the conclusion by seismologists that recent fracking in the North West was responsible for a minor earthquake."
He said fracking was a "distraction from the real challenges" and that "real energy solutions" would be found in using renewable sources.
Nick Molho, head of energy policy at World Wildlife Fund UK, reiterated a call for a moratorium on fracking in the UK.
"These findings are worrying, and are likely to add to the very real concerns that people have about fracking and shale gas," he said.
The industry denies that shale gas is unsafe and a government committee has recommended that fracking should be allowed to go ahead.
The Department of Energy and Climate Change (DECC) said: "The implications of this report will be reviewed very carefully - in consultation with the British Geological Survey, independent experts, and the other key regulators, HSE and the Environment Agency - before any decision on the resumption of these hydraulic fracture operations is made."
Infographic showing shale gas extraction

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