Gas Wells Leak – Even Upside Down – in Australia 44% of gas wells leaking in the Tara Coalbed Methane field

Gas Wells Leak – Even Upside Down – in Australia 44% of gas wells leaking in the Tara Coalbed Methane field by Will Cottrell, March 14, 2012, Shaleshockmedia
A study of a gas field in Queensland, Australia has found 44% of gas wells leaking…. The report adds to a growing body of evidence suggesting that gas drilling inevitably leads to water contamination as gas escapes from boreholes. The study, conducted in the Tara, Queensland field examined 56 of the field’s wells. 26 were found to have leaks. Tara is a Coal Bed Methane (CBM) gas field (it’s called Coal Seam Gas in Australia). … Australia is not the only country to suffer leaking wells. A Canadian study found more than 17600 oil and gas wells leaking nationwide. Watson and Bachu (Society of Petroleum Engineers SPE 106817 – 2009) surveyed 352,000 oil and gas wells and found 5% of wells had gas or oil outside the central borehole. (15% in the Alberta test area were leakers)  In 1992 the US EPA estimated that of 1.2 million abandoned oil and gas wells in the US, 200,000 were leaking, a 16.7% failure rate. Little surprise that both Duke University and the US Environmental Protection Agency have correlated gas in water with proximity to fracking sites.

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