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- W136841267 abstract "The success of shale gas in the US has ignited companies to explore the unproven shale gas potential European basins hold. Past exploration in the Northwest Carboniferous Basin of Ireland confirms the presence of gas shows concentrated in thick source rocks with high thermal maturities, but its shale gas potential is yet to be understood. This research has assessed the shale gas potential of the Bundoran, Benbulben, Carraun and Dergvone Shales aiming to understand the variability in source rock potential, generation and adsorption history, and mudstone lithofacies. To achieve this a comprehensive integrated study of outcrop and subsurface exploration data has been undertaken. Outcrop data comprises sedimentary logging, sample collection and a spectral gamma ray survey, as well as thin section and TOC analysis. Subsurface exploration data comprises geochemical data and well logs.Shale gas potential is encouraging in the Bundoran Shale in which it is the primary target, while the Benbulben Shale is a secondary target where deep enough. The Carraun and Dergvone Shales are high risk as occur at maximum depths of <300m. The highest shale gas potential occurs in the Lackagh Hills and Thur Mountain region in the Ballymote Syncline where the thickest, deepest, and sufficiently mature formations are encountered. A good data set in the north of the basin suggests this region is high risk due to shallow depths, while the central and southern areas are medium risk where greater depths are encountered. The key risks in the Bundoran Shale are depth, TOC% and the uncertainty of microfacies variation in the middle section. There is a lack of data coverage in the Lackagh Hills and Thur Mountain area as the exploration wells have been drilled on the basin highs, causing a major uncertainty with respect to source rock potential and mudstone lithofacies variability. The author recommends drilling a stratigraphic well in the center of the basin (Lackagh Hills and Thur Mountain area) to fully assess the variation in TOC% and microfacies variation by analysing wireline logs, core and XRD data." @default.
- W136841267 created "2016-06-24" @default.
- W136841267 creator A5024590807 @default.
- W136841267 date "2012-12-05" @default.
- W136841267 modified "2023-09-26" @default.
- W136841267 title "ASSESSING THE SHALE GAS POTENTIAL OF THE NORTHWEST CARBONIFEROUS BASIN OF IRELAND" @default.
- W136841267 hasPublicationYear "2012" @default.
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