Improving spatial predictability of petroleum resources within the Central Tertiary Basin, Spitsbergen: a geochemical and petrographic study of coals from the eastern and western coalfields

Uguna, Jacob Onyebuolise; Carr, Andrew D.; Marshall, Chris; Large, David; Meredith, Will; Jochmann, Malte; Snape, Colin E.; Vane, Christopher H.; Jensen, Maria A.; Olaussen, Snorre

Abstract

Central Tertiary Basin (CTB) coals from a variety of palaeogeographic conditions within the Longyear and Verkhnij seams, were sampled to assess the relationship between the petroleum present, the remaining generation potential and coal geochemistry in order to improve the spatial predictability of petroleum resources within the basin. Vitrinite reflectance (VR) values from the CTB coals have been shown to be suppressed (Marshall et al., 2015a). This study attempts to quantify and correct for this suppression effect by applying the Lo (1993) method (LoVR), which uses Hydrogen Index (HI) values to modify VR data, and the coal Rank(Sr) scale of Suggate (2000, 2002), a technique not affected by suppression. In addition, the oil generation and expulsion thresholds for the CTB coals were investigated.

Citation

Uguna, J. O., Carr, A. D., Marshall, C., Large, D., Meredith, W., Jochmann, M., …Olaussen, S. (2017). Improving spatial predictability of petroleum resources within the Central Tertiary Basin, Spitsbergen: a geochemical and petrographic study of coals from the eastern and western coalfields. International Journal of Coal Geology, 179, 278-294. https://doi.org/10.1016/j.coal.2017.06.007

• Journal Article Type: Article
• Acceptance Date: Jun 19, 2017
• Online Publication Date: Jun 22, 2017
• Publication Date: Jun 15, 2017
• Deposit Date: Jun 21, 2017
• Publicly Available Date: Jun 21, 2017
• Journal: International Journal of Coal Geology
• Print ISSN: 0166-5162
• Electronic ISSN: 1872-7840
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 179
• Pages: 278-294
• DOI: https://doi.org/10.1016/j.coal.2017.06.007
• Keywords: Oil-prone coal; Perhydrous vitrinite; Maturity; VR; LoVR; Tmax; Rank(Sr); Suppression; Generation; 62 expulsion; Todalen member; Spitsbergen
• Public URL: https://nottingham-repository.worktribe.com/output/866193
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S0166516216304487
• Additional Information: This article is maintained by: Elsevier; Article Title: Improving spatial predictability of petroleum resources within the Central Tertiary Basin, Spitsbergen: A geochemical and petrographic study of coals from the eastern and western coalfields; Journal Title: International Journal of Coal Geology; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.coal.2017.06.007; Content Type: article; Copyright: © 2017 Elsevier B.V. All rights reserved.
• Contract Date: Jun 21, 2017