Wednesday, September 21, 2011

Huge UK Shale Gas Resources discovered



UK junior Cuadrilla Resources today claimed it is sitting on 200 trillion cubic feet (cf) of shale gas from just two wells drilled in northwest England. Cuadrilla’s shale gas estimate dwarfs Norway’s huge Troll gasfield, which has recoverable reserves of 33 trillion cf, and Ormen Lange, which holds 8.6 trillion cf of recoverable gas. And it even overshadows the 187 trillion cf of technically recoverable shale-gas reserves that the US Energy Information Administration believes Poland possesses.



The decline in production from the North Sea has seen the UK become a net importer of gas since 2004 and of crude oil since 2005. This means that the country is set to become increasingly reliant on international energy markets to meet its energy needs – leaving the country vulnerable to price volatility and disruptions in supply.



Cuadrilla hopes to start commercial production by mid-2012. The company, which has been exploring for shale gas at sites near Preston in Lancashire and Bank, near Liverpool, has drilled two wells so far and is in the process of drilling another.

“We’re excited,” Dennis Carlton, Cuadrilla’s executive director told PEU. “It’s a significant number [200 trillion cf], but we need to refine it and make sure we can quantify it.”

Cuadrilla explained this was an estimate for gas in place, not necessarily ultimately recoverable volumes. The company said it would not know exactly how much gas could be recovered until it had finished exploration phase and the results had been analysed. This would likely be next summer.

It plans to drill five to six wells in the next year and that ultimately around 10 wells would be needed to confirm the initial resource estimate, which was calculated by the company itself.

Tremors

Cuadrilla’s Grange Hill site is shut in pending the results of an investigation by the department of energy and climate change (Decc) following two tremors at the firm’s drilling sites earlier this year. Some environmentalists claimed the tremors could have been caused by Cuadrilla’s hydraulic fracturing (fracking) operations in the area, a charge Cuadrilla denies.

The firm, which has been unable to frack since the investigation started, said the report should be released by mid-October. If Decc concludes that the tremors are the result of fracking, it could potentially halt the company’s shale-gas aspirations in Lancashire.

However, Carlton told PEU he is confident Decc will find in Cuadrilla’s favour. If it doesn’t, the company will concentrate on developing its other licences in the Netherlands and Poland. “To pack up and move out of the UK would be a big blow to a small company, but it was part of the game plan. For anyone with four or five projects across Europe you can guarantee that they aren’t all going to work. We’re not going to put all our eggs in one basket,” he added.

There has been some local opposition to the company’s drilling plans, including a demonstration of around 150 people near the company’s Bank site last week. When Cuadrilla chief executive Mark Miller announced the company’s 200 trillion cf estimate in Blackpool today, there was also a small group of protestors outside.

But the company is confident it will manage to convince the public that it can develop northwest England’s shale gas safely, and has also played up the potential financial benefits it could bring to the region. Miller said he wants to create an “Aberdeen effect” in Lancashire. He claimed the company could contribute £5 billion ($7.8 billion) to £6 billion to the local economy over the next 30 years through job creation and business taxes.

UK gas market turned on head

If even a fraction of Cuadrilla’s shale-gas reserves are recoverable, it would turn the UK gas market on its head. This includes drastically reducing UK imports of Norwegian and Dutch gas by pipeline, as well as liquefied natural gas (LNG) from as far away as Qatar and Nigeria.

“If they say a 200 trillion cf recoverable resource over 30 years, that's 190 billion cubic metres (cm) a year, or 500 million cm/d. Even 50% of that is double what the UK is producing today,” one UK gas trader said. This would be enough to meet the whole of the UK gas demand in the peak winter period, with consumption usually around 400 million cm/d.

Cuadrilla’s shale gas estimate dwarfs Norway’s huge Troll gasfield, which has recoverable reserves of 33 trillion cf, and Ormen Lange, which holds 8.6 trillion cf of recoverable gas. And it even overshadows the 187 trillion cf of technically recoverable shale-gas reserves that the US Energy Information Administration believes Poland possesses


But some UK gas traders were sceptical about whether the mid-2012 production start date would produce volumes sufficient to affect prices.

“It’s nice to say, but hard to promise,” one UK gas trader said. “The planning rules are bit different [in the UK] to the US, which makes it harder to access the gas,” another said.

The UK has been importing more and more gas to meet rising demand as North Sea gas production has gone into decline. LNG imports now account for around 25% of UK consumption.

Petroleum Economist, 21 September 2011

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