Hydraulic fracturing by country
Shale gas drilling rig near Alvarado, Texas
Hydraulic fracturing has become a contentious environmental and health issue with Tunisia and France banning the practice and a moratorium in place in Quebec (Canada), and some of the states of the US.
- 1 Australia
- 2 Bulgaria
- 3 Canada
- 4 China
- 5 Denmark
- 6 France
- 7 Germany
- 8 Ireland
- 9 Netherlands
- 10 New Zealand
- 11 Poland
- 12 Romania
- 13 South Africa
- 14 Tunisia
- 15 United Kingdom
- 16 United States
- 17 See also
- 18 References
Up until the mid-2000s, hydraulic fracturing was generally limited to conventional oil and gas wells in the Cooper Basin. This was limited to one, two or sometimes zero ongoing fracturing operations. The vast majority of coal seam gas wells have not been hydraulically fractured as the wells presently being drilled are in coal seams that have good natural permeability. The NSW Government has banned BTEX chemicals as additives.
A number of protests occurred in Bulgaria after the government's decision to grant an approval for Chevron Corporation to research the possibilities of shale gas extraction in the country's northeast in 2011. After a nationwide protest in January 2012, the government decided to ban the hydraulic fracturing technology.
Fracking has been in common use by the petroleum industry in Canada since at least the mid-1960s. Massive hydraulic fracturing has been widely used in Alberta since the late 1970s to recover gas from low-permeability sandstones of the Spirit River Formation. The method is currently used in development of the Cardium, Duvernay, Montney and Viking in Alberta, Bakken in Saskatchewan, Montney and Horn River in British Columbia.
Concerns about fracking began in late July 2011, when the Government of British Columbia gave Talisman Energy a long-term water licence to draw water from the BC Hydro-owned Williston Lake reservoir, for a twenty-year term. Fracking has also received criticism in New Brunswick and Nova Scotia, and the Nova Scotia government is currently reviewing the practice, with recommendations expected in March 2012. The practice has been temporarily suspended in parts of Quebec, pending an environmental review. The Canadian Centre for Policy Alternatives has also expressed concern.
During October 2013 public conflict began between the Elsipogtog First Nation in New Brunswick and the hydraulic fracturing company SWN. Fuelling the conflict were SWN's plans to use the land of the Elsipogtog Nation for fracking. The First Nations people of the area had previously raised concerns about the environmental impacts of fracking as well as the government's failure to consult with them. Public protests began when the First Nations people realized their voice was not being heard. Much of the media coverage on the protests has portrayed the First Nations people as violent and destructive. However, what most people do not know is that the land in question is legally First Nation land. The Peace and Friendship Treaties of 1760-1761 did not cede land or resources,[unreliable source?] the government of Canada does not own the land and therefore cannot legally permit SWN to use the land for fracking purposes. On 6 December, SWN announced it was stopping fracking for the year, leaving the job incomplete.
China completed its first horizontal shale gas well in 2011. A global shale gas study by the US Energy Information Administration said China's technically recoverable shale gas reserves were almost 50% higher than those of the number two nation, the United States. Regulation of the sector in the country, however, could change its characteristics in the future.
In 2012, the first research for shale gas has begun in Denmark, where Total E&P Denmark B.V., a subsidiary of Total S.A., has been granted two exploration licenses in collaboration with the Danish State's oil- and gas company, Nordsøfonden. The exploration license, which runs until 2016, covers the two areas Nordjylland and Nordsjælland, where the geological characteristics are expected to provide the best potential for shale gas.
Danish national media have so far covered both pros and cons of shale gas production and fracking, and a minor NGO has been formed to protest against shale gas. The acknowledged green think tank Concito has produced a report that states, that it will be both practically and technically feasible to establish shale gas production in Denmark without having to fear of contamination of drinking water or the release of methane from wells.
Hydraulic fracturing was banned in France in 2011 after public pressure. It was based on the precautionary principle as well as the principal of preventive and corrective action of environmental hazards, using the best available techniques with an acceptable economic cost to insure the protection, the valuation, the restoration, management of spaces, resources and natural environments, of animal and vegetal species, of ecological diversity and equilibriums. The ban was upheld by an October 2013 ruling of the Constitutional Council following complaints by US-based Schuepbach Energy.
Massive hydraulic fracturing of gas wells in tight sandstone began in Germany in 1975, and became common during the period 1978-1985, when more wells received massive hydraulic fracs in Germany than in any other European country. Germany also had the largest hydraulic fracturing jobs in Europe, using up to 650 tonnes of proppant per well. Most German fracs used water- or oil-based gels. The most popular target formation for hydraulic fracturing was the Rotliegend Sandstone. Hydraulically fractured wells are today the source of most of German natural gas production.
In February 2013, the government of Chancellor Angela Merkel announced draft regulations that would allow for the exploitation of shale gas deposits using the same fracking techniques common in the U.S., with the exception only of wetland areas that make up just over 10% of German territory. The draft legislation had come from the Federal Department of Economics, then headed by the party head of Merkel's coalition partner, the pro-business free Democrats. This policy was said to be motivated by fears that consistently high energy costs were harming German industry, facing competitors for example from the U.S. where energy prices had shrunk to less than 25% of German energy costs.
However these plans immediately drew massive critique both from opposition parties and elements of Merkel's own CDU, as well as from major NGOs, large parts of the press and the general public. Within less than a month, the original plan was put on ice for the foreseeable future and a moratorium was declared. Ever since shale gas fracking has de facto been banned in Germany and the stance of the newly formed Grand Coalition government expressed in the coalition treaty is that unconventional gas exploration will not be pursued in the country under this government. Here is an excerpt from the coalition contract:
- According to available studies on its environmental relevance, the fracking technology in unconventional natural gas production - particularly in shale gas production - is a technology with enormous potential risks. The effects on humans, nature and the environment are scientifically not yet sufficiently clarified. Drinking water and health have absolute priority for us.
- We reject the use of environmentally toxic substances in the application of fracking technology for exploration and extraction of unconventional natural gas deposits. A request for approval can only be decided upon when the necessary data basis for evaluation exists and is clarified beyond doubt that any adverse change in water quality can be ruled out (precautionary principle of the Water Resources Act). The disposal of flowback from fracking operations with the use environmentally toxic chemicals in injection wells is currently not justifiable due to lack of knowledge of the risks involved.
- The Coalition will work - with the involvement of federal states and science - in a collaborative process with the companies. The industry will need to explain the specific objectives of their explorations campaigns which specific findings to eliminate gaps in knowledge and to provide a sufficient basis for possible subsequent steps. This should be done in a transparent process. In a dialogue with all stakeholders - under the auspices of the scientific community - research results will be shared and discussed. The Coalition will soon submit legal changes for a better protection of the drinking water in the Water Provision Act and new Regulations on the Environmental Impact Assessment (EIA) for mining projects. A mandatory EIA and public participation will be required for the licensing of exploration and production of natural gas from unconventional deposits.
Although German laws de jure explicitly prohibit only the use of hydraulic fracturing in designated water preserves, fracking operations generally need be authorized by the government, which has publicly declared a moratorium until long-term damage to residents or the environment brought about by fracking can be ruled out or until alternative extraction methods become available that don't rely on the injection of toxic chemicals.
In Northern Ireland, Tamboran Resources has not yet tested sites in County Fermanagh which they claim could supply gas to Northern Ireland for years to come. Tamboran Resources also has only a licensing option for gas in the Lough Allen basin area of County Leitrim, Republic of Ireland. The CEO of Tamboran Resources has declared a “zero-chemical hydraulic fracturing” pledge, but that has been declared as illusionary. The Protest group "No Fracking Ireland" has been set up by locals of counties Leitrim, Roscommon and Sligo and petitions against hydraulic fracturing are still ongoing.
A temporary moratorium on fracking for shale gas was enacted in September 2013 pending further research.
Poland is aggressively developing its shale gas reserves, thought to be the largest in Europe, though the latest estimate is significantly lower than that previously provided by the U.S. Department of Energy. A Polish Geological Institute study published in March 2012 concluded that, while fracking at one site had produced toxic waste, the latter was reused and did not harm the environment, though critics said the study was carried out at the start of exploration in Poland and does not reflect dangers from a long-term activity. Large-scale fracking in Poland would relieve some of the EU's dependency on Russian gas, but the East European state is densely populated and has a large agricultural sector, meaning the massive amounts of water required for fracking have raised additional concerns.
On 17 October 2013, people in the Pungesti village protested against hydraulic fracturing done by Chevron. One hundred policemen were sent to stop the protest. The land on which Chevron is trying to build the well belonged to the village council but was acquired by the mayor in a way contested by the villagers. The mayor is presumed to have been paid by Chevron in order to permit the building of a gas-well.
On 6 and 7 December 2013, protesters tried to stop MIF S.A. a contractor for Chevron from starting the work at this site and the government brought one thousand strong riot-police force to keep the protesters away. Protesters clashed with the police and there were about 50 arrests made. Many protesters claimed they were abused and injured by the government forces. The county police chief instituted a state of necessity barring citizens to travel in or out of that area, imposed a curfew and interdicted any public assembly.
Currently around 77% of South Africa's energy generation comes from coal. By the time the last two coal-fired plants come on line, including the world's 4th largest coal-fired power plant, it is estimated that South Africa will be generating 94% of its domestic energy from coal. The South African government is currently (2014) strongly campaigning for fracking to be rolled-out across much of the country to act as a "bridge-fuel" between coal and alternative fuels. However, recent studies show that far from being a cleaner bridge-fuel, the loss of methane to the environment through leakage from fracking rigs is considerable. This means that a move to natural gas is far worse than continuing with coal power in the short- and medium-term, and constitutes a considerable contribution to global greenhouse emissions.
Three companies have received permits to frack roughly 1/5th of the area of South Africa. Shell's portion covers roughly 90,000 km2, Falcon's covers 32,000 km2, and Challenger Energy's (Bundu) covers 3,200 km2. Due to considerable public pressure, a temporary moratorium on hydraulic fracturing for shale gas in South Africa's Karoo region was imposed in July 2011, to examine concerns about safety and environmental degradation, particularly that of water safety. Following the announcement of the moratorium in April 2011, a task team appointed by Mineral Resources minister Susan Shabangu was appointed to investigate the feasibility and environmental impact on fracking. The moratorium was lifted on 7 September 2012, with the team's report not having been made public, and the task team having "met in total secrecy".
Rationale for lifting the moratorium
The government's rationale for lifting the moratorium included the creation of up to 700 000 jobs, an injection into the economy of up to 200 billion rand ($19.56 billion) a year, and the reduction of reliance on coal energy. With an estimated 13.7 trillion cubic meters of recoverable gas, one study claims that the Karoo could hold enough gas to supply South Africa for 400 years. Despite these benefits, activists vehemently opposed the move by the government and the ruling party, the ANC, and made a series of well-publicised protests at the end of September 2012. Companies are allowed to proceed with the initial stages of exploration, including geological field mapping and other data gathering activities, until such time as an appropriate regulatory framework has been put in place. Actual fracking activities, essential during the later stages of exploration when determining the financial viability of a potential project, would for the time being remain prohibited until a legal framework has been completed. Initial exploration would go a long way towards confirming whether the Karoo indeed held the estimated technically recoverable resource of 485 trillion cubic feet (Tcf) of gas.
Opposition to fracking
However, local South African campaigners argue that exploration represents the thin-edge of the corporate wedge, and should not even go ahead in the face of gross environmental impacts, increasing evidence of air pollution and groundwater contamination, and considerable health impacts. Environmental campaigners point out that many of the jobs will go to foreign expertise, little of the money will end up in local hands, and that fracking is not a "bridge" fuel as it produces as much greenhouse emissions as coal. The karoo, famous for the quality of its lamb, is an arid region that it is largely reliant on underground water for agriculture and drinking supplies. Fears of water contamination across the United States are equally as applicable to fracking in South Africa. Cases mapped by Earthjustice, present over 1000 reports of accidental releases of oil or gas in 2011 for North Dakota alone. One example of contamination is that of landowner in Washington County, George Zimmerman, whose previously uncontaminated water was retested after five fracking wells were drilled on his property. Tests found arsenic levels 2,600 times the federally acceptable level, benzene at 44 times above the standard and naphthalene at five times the standard. Farmers in southwest Pennsylvania blame cattle deaths and mutations on local fracking. Other complaints attributed to tainted water include children's sickness, skin rashes and neurological disorders.
Organisations in South Africa that oppose fracking include Earthlife Africa Greenpeace, CASABIO, The Home of Biodiversity, The Wildlife and Environment Society of South Africa (WESSA),/ a Facebook group "Stop Fracking", and Treasure the Karoo Action Group (TKAG). Jonathan Deal, CEO of TKAG has also helped form the Sustainable Alternatives to Fracking and Exploration (SAFE) Alliance. This alliance includes The Wilderness Foundation, TKAG, the Endangered Wildlife Trust (EWT), and the African Conservation Trust (ACT).
In August 2011, a public forum was held at Kelvin Grove in Cape Town by Shell's environmental consultant, Golder Associates. Lewis Pugh delivered a speech which received a standing ovation from the attending public. He stated that: Never, ever did I think that there would be a debate in this arid country about which was more important – gas or water. We can survive without gas... We cannot live without water. If we damage our limited water supply – and fracking will do just that – we will have conflict again here in South Africa. His final statement was: I have no doubt, that in the end, good will triumph over evil. After Pugh's speech, Bonang Mohale, Shell's representative, announced in reference to fracking that: We will leave the Karoo better than it was when we found it, and: There is zero chance that there will be any contamination of the water. Mohale was effectively silenced by his colleagues after ongoing derision at his statements from the public. Shell was also asked what would happen to the gas. A Shell representative replied that: Shell doesn't expect the gas reserves to be very large, therefore they will be generating electricity and distributing it directly. Shell also agreed to disclose the chemicals they would use in fracking, their water sources and waste disposal methodology. To date (February 2014), Shell has not been forthcoming with any of these details.
Hydraulic fracturing has regularly been used to improve the performance of water boreholes. In the case of water boreholes it is often referred to as hydrofracturing. From 1990 to 1992, 170 boreholes had been hydrofractured in South Africa.
Members of the Constituent Assembly belonging to president Moncef Marzouki's party, the Congress For the Republic, have sponsored a bill for the moratorium of hydraulic fracturing on 6 February 2014.
Although hydraulic fracturing in the United Kingdom has been common in North Sea oil and gas fields since the late 1970s, and has been used in about 200 British onshore oil and gas wells since the early 1980s, the technique did not attract public attention until its use was proposed for onshore shale gas wells in 2007. As of Jan 2014, the only hydraulic fracturing job that has been performed for shale gas in the United Kingdom was by Cuadrilla Resources in 2011. Other companies have exploration licenses. The process was unofficially suspended for nearly a year in the UK from June 2011 after safety concerns emerged from the occurrence of two small earthquakes, but an expert report in April 2012 concluded the practice could continue under stricter monitoring.
The Royal Academy of Engineering under the banner of the Royal Society published a report in June 2012 that covered all aspects of the technology, and this has informed extensive legislation with the many government licensing authorities, including the requirement that only non hazardous chemicals may be used.. (See Hydraulic Fracturing in the UK for complete details).
Protest groups have emerged since April 2012, with a major nationwide group being Frack Off with further local groups. As of 2013 the government was optimistic about development of the shale gas industry and was offering favorable tax treatment at a time when local budgets are being slashed.
A type of the fracking technique called slickwater fracking was used in Texas in 1998 to complete natural gas wells in the Barnett Shale. This type of completion was made possible by a number of advances in directional drilling and microseismic 3-dimensional imaging supported by the Department of Energy and other federal agencies, Drilling into shale now accounts for 30 percent of US gas production.
This method of drilling has become controversial because of the complaints, from some residents of the areas, about pollution and potential health effects.
In May 2012, the state of Vermont became the first state to outlaw hydraulic fracturing and New York state, which unlike Vermont has significant gas reserves, banned the practice in December 2014.
- Directional drilling
- Environmental impact of hydraulic fracturing
- Environmental impact of petroleum
- Environmental impact of the oil shale industry
- ExxonMobil Electrofrac
- List of countries by recoverable shale gas
- Shale gas by country
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Shale gas is a resource with huge potential to broaden the UK's energy mix," said the Chancellor of the Exchequer George Osborne. "We want to create the right conditions for industry to explore and unlock that potential in a way that allows communities to share in the benefits. "This new tax regime, which I want to make the most generous for shale in the world, will contribute to that. I want Britain to be a leader of the shale gas revolution – because it has the potential to create thousands of jobs and keep energy bills low for millions of people
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