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TitleRock-Eval pyrolysis results for cuttings samples from the Natsek E-56 Well, Beaufort-Mackenzie Basin, Canada
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AuthorNeville, L A; McNeil, D H; Grasby, S E; Galloway, J M; Sanei, H; Dewing, K
SourceGeological Survey of Canada, Open File 7949, 2015, 76 pages, https://doi.org/10.4095/297341
Year2015
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediadigital; on-line
File formatpdf
ProvinceNorthwest Territories; Northern offshore region
NTS117D/12
AreaBeaufort-Mackenzie Basin
Lat/Long WENS-140.0000 -139.0000 70.0000 69.7500
Subjectsfossil fuels; thermal maturation; maturation; vitrinite reflectance; vitrinite; organic maturity; organic deposits; sedimentary rocks; Paleocene; Miocene; hydrocarbons; hydrocarbon maturation; hydrocarbon potential; Eocene; Natsek E-56 well; Reindeer Formation; total organic carbon; Cenozoic
Illustrationslocation maps; tables; plots
Viewing
Location
 
Natural Resources Canada Library - Ottawa (Earth Sciences)
 
ProgramWestern Arctic Sverdrup Basin, GEM2: Geo-mapping for Energy and Minerals
Released2015 11 18
AbstractA total of 195 cuttings samples were collected from between 229 - 2226 m from the Natsek E-56 well of Beaufort-Mackenzie Basin for Rock-Eval Pyrolysis. The Natsek E-56 well is being investigated as part of a multi-disciplinary study of petroleum systems in the Beaufort-Mackenzie Basin, carried out by the Geological Survey of Canada (Calgary) under the Geo-Mapping for Energy and Minerals (GEM) Program, Western Arctic Project. Organic matter characterization in conjunction with other on-going analyses of rock preserved in Natsek E-56 cuttings will be used to interpret the paleoenvironment, paleotemperature and paleosalinity during the Early to Middle Eocene to inform hydrocarbon source rock characterization, with broader implications extended to understanding Arctic Ocean paleoceanography and paleoclimate.
Rock-Eval pyrolysis parameters suggest that the samples from the Taglu and Aklak sequences, preserved in Natsek E-56, contain a mixture of poor to fair petroleum source rocks with immature to early mature Type III/IV kerogen. The Tmax values however, indicate that the cuttings from Natsek E-56 remain outside the window for petroleum generation.
Below about 2030 m there is a dramatic increase in the TOC content of several samples, suggesting that the Aklak sequence, a sandstone dominated succession, contains carbonaceous mudstone or coaly mudstone beds.
Summary(Plain Language Summary, not published)
Cuttings samples (195) were collected from between 229 ¿ 2226 m from the Natsek E-56 well of Beaufort-Mackenzie Basin for Rock-Eval Pyrolysis. Rock-Eval Pyrolysis will provide an indication of the type and amount of organic matter present in the well. The Natsek E-56 well is being investigated as part of a multi-disciplinary study of petroleum systems of the Beaufort-Mackenzie Basin, carried out by the Geological Survey of Canada under the Geo-Mapping for Energy and Minerals (GEM) Program, Western Arctic Project. Organic matter characterization in conjunction with other on-going analyses of Natsek E-56 cuttings will be used to interpret environmental conditions during the time of deposition during the Early Eocene to inform hydrocarbon source rock characterization.
GEOSCAN ID297341