Metgasco Ltd whose coal seam mining operating licences cover approximately 5,800 km2 in the New South Wales section of the Clarence-Morton Basin is having a little trouble deciding which line to spin North Coast communities and their elected representatives………
Fracturing, or ‘fracing’ as it is referred to in the CSM industry, is a technique used to improve the flow of gas from the coal seam. It is not anticipated at this time that fracing will be required; however information on typical fracing impacts and management has been provided in case this should change in the future. The main impacts are associated with an increase in noise from the high pressure pumps during the fracing operation and the potential for cross contamination of beneficial use aquifers in the adjacent area.[Metgasco Ltd Environmental Assessment - RVPS & CGP: Executive Summary, August 2008]
Metgasco told the government its drilling would have little effect on aquifers since all wells are encased in cemented steel casing ''so there is no perceivable impact to ground water [as] a result of the fracture treatment'' [Metgasco spokesperson in The Sydney Morning Herald, Gas drilling goes ahead without any checks, 15 November 2010]
The final investment decision on into production through stimulation techniques such as this project remains subject to satisfactory progress on fracture stimulation [Metgasco 2010 Annual Report]
Metgasco, had been given a licence to mine using the controversial hydraulic fracturing technique, also known as “fracking”….this method of extracting natural gas from coal seams involved pumping material that often including poisonous or carcinogenic materials into the rock to create fractures that allowed the gas to escape [Education officer for the Environmental Defenders Office NSW Northern Rivers Mark Byrne in The Daily Examiner, Poison warning as gas mining starts, 25 January 2011]
Locally Metgasco have given assurances that they don’t use any chemicals, and don’t do fracking [Steve Cansdell NSW MP for Clarence in The Northern Rivers Echo,Gas seams to be a cloudy issue, 24 February 2011]
the company had done one hydraulic fracture in the Northern Rivers region, at the Kingfisher site near Casino…. We’re happy to give a list of chemicals, the names aren’t generally recognisable but they’re all relatively common chemicals; every one of the chemicals will be in most people’s houses,….The Kingfisher frack was done at 1450m [Metgasco’s chief operating officer Mick O’Brien in The Northern Rivers Echo, Metgasco goes deep into CSG, 3 March 2011]
the company did not use hydraulic fracturing…..nor poisonous chemicals in the well-drilling process [Metgasco’s chief financial officer Glenda McLoughlin in The Northern Star, Metgasco spruiks its transparency, 16 March 2011]
we don’t use fracking in coal seam gas exploration [Metgasco operations manager Aidan Stewart in The Northern Rivers Echo, Gas meeting fails to fire, 17 March 2011]
Metgasco tell us they are not using this process [Janelle Saffin Federal MP for Page, media release, 16 May 2011]
Metgasco applies advanced drilling and production techniques to extract coal seam gas. We produce gas from certain seams by drilling a vertical well to between 300 to 700 metres from the surface. The well is then cased to prevent any water from upper acquifers leaking into the well. We then drill horizontally along the coal seam to a distance of up to 1,000 metres. The well is then lined with perforated steel casing. Water and gas are then pumped from the well and separated at the well head. This process of taking water out of the coal seams lowers the pressure in the well and allows gas to flow to the wellhead. [Metgasco website, 17 May 2011]
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