Taking the worry out of fracking

A new technique for natural gas extraction eliminates fears about contaminated water and stops opponents in their tracks.

Luckily, there may be a technical fix that addresses these water worries and does an end run around drilling opponents: gas-fracking. Developed by GasFrac Energy Services in Alberta, Canada, gas-fracking uses liquefied petroleum gas (LPG), which consists mostly of propane, instead of water to crack open shale formations to release oil and natural gas. Robert Lestz, GasFrac’s chief technology officer, and his colleague Audis Byrd spent 10 years developing the technique. Lestz explains that the company produces a LPG gel using phosphate esters, iron sulfate activator, and magnesium oxide. None are seriously toxic or are thought to be carcinogenic. The injected LPG gel combined with sand fractures shale formations to release trapped oil and/or natural gas.

Source:http://reason.com/archives/2011/05/17/a-better-way-to-frack

June 11 update:http://www.fool.com/investing/general/2011/06/09/the-green-light-for-natural-gas.aspx

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