PRESS RELEASE 16 June 2014
Dart Energy submits planning application for CBM exploration well to Shropshire County Council
Dart Energy (Europe) Ltd (Dart Energy) has now submitted an application to Shropshire County Council for planning permission to drill a temporary coal bed methane exploration borehole on land north west of The Brooklands, Dudleston, Ellesmere, Shropshire to be known as Criftins 1.
The permission applied for consists of one exploratory borehole and associated infrastructure, for a temporary drilling period not exceeding 60 days.
The aim of the borehole is to extract core samples from the coal seams for testing of the gas content. It should be noted that this application relates only to this borehole and does not relate to hydraulic fracturing (“fracking”).
If permission is granted the borehole will have a total depth of 830m.
The drilling fluid will be water or brine with drilling starch or in some cases biodegradable viscosifiers. Dart Energy will use a chemically benign drilling mud to (a) lubricate the drill bit and (b) return drill cuttings to the drill floor. Chemicals in drilling mud are Pure Bore and CMC (Carboxymethylcellulose), to make up a naturally biodegradable water-based drilling fluid.
For stability, and isolation of surrounding formations, steel pipe casing will be inserted and cemented in place to form an impermeable barrier across the whole of the aquifer or loose formation sections. The depth of the casing is anticipated to be about 280 metres.
Following completion of the drilling operations, the steel casing of the drill hole will be cut to approximately 2m below ground level, the borehole will be cemented to the top of the cut casing according to DECC regulations. All ancillary equipment and fencing will be removed from site, all stone and geotextile matting will be lifted and removed from site, where possible this stone will be recycled or re-used, any soil bunds will be spread and reseeded with an appropriate seed mix and the site restored to its former condition.
The following subject areas are addressed in a Supporting Statement to the application:
• Air quality and Dust • Lighting
• Landscape and Visual
• Archaeology and Cultural Heritage
• Land Use and Soil
• Risk of Contamination to Land
• Hydrology, Hydro-geology, Geology and Flood Risk • Ecology, Ornithology, Biodiversity and Conservation
Once the application has been validated and registered by Shropshire County Council it will be available to the public.
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