Shale oil and gas resource evaluation through 3D basin and petroleum systems modelling: a case study from the East Midlands, onshore UK

Author:

Palci F.1,Fraser A. J.1ORCID,Neumaier M.1,Goode T.2,Parkin K.2,Wilson T.2

Affiliation:

1. Royal School of Mines, Imperial College LondonPrince Consort Road, Kensington, London SW7 2BP, UK

2. IGas Energy plc7 Down Street, London W1J 7AJ, UK

Abstract

Technological advances in horizontal drilling and hydraulic fracturing have led to a re-evaluation of the UK Carboniferous sequences for shale oil and gas potential. In the Gainsborough Trough, hemipelagic mudstones known collectively as the Bowland Shale were deposited during the Pendleian Substage (Late Mississippian). In this study the interpretation of heritage 2D and recent 3D seismic data allowed the reconstruction of the tectonic evolution of the basin, which was simulated in a 3D basin and petroleum systems model. The model enabled the first prediction of generated, adsorbed, retained and expelled hydrocarbon volumes. Between 8 and 26 Bbbl of STOIIP, and between 11 and 38 tcf of GIIP have been estimated to lie within the Bowland Shale in the Gainsborough Trough. However, at the present time, there is considerable uncertainty concerning these in-place volumes, and no tests have proven the recoverability of oil and gas from the Bowland Shale in this area. Importantly, the Bowland Shale has been modelled as a single homogeneous layer, and the in situ volume numbers need to be corrected for a net to gross factor, once the criteria required for the definition for net reservoir in this formation are better understood.

Publisher

Geological Society of London

Subject

Earth and Planetary Sciences (miscellaneous),Economic Geology,Geochemistry and Petrology,Geology,Fuel Technology

Reference58 articles.

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4. Besly, B.M. 2018. Exploration and development in the Carboniferous of the Southern North Sea: a 30-year retrospective. Geological Society, London, Special Publications , 471, 17–64, https://doi.org/10.1144/SP471.10

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