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TitleSource of the Chinkeh oil from Maxhamish field, Liard Basin, northeastern British Columbia
AuthorJiang, C; Mort, A; McMechan, M; Chen, Z
SourceCanadian Society of Petroleum Geologists, Canadian Society of Exploration Geophysicists, Joint Annual Meeting, Abstracts 2015, 2015 p. 1-5
Year2015
Alt SeriesEarth Sciences Sector, Contribution Series 20140475
MeetingCSPG/CSEG/CWLS GeoConvention 2015; Calgary; CA; May 4-8, 2015
Documentserial
Lang.English
Mediapaper; on-line; digital
File formatpdf
ProvinceNorthwest Territories; British Columbia
NTS94O/14
AreaMaxhamish
Lat/Long WENS-124.0000 -123.0000 60.0000 59.7500
Subjectsfossil fuels; hydrocarbons; hydrocarbon potential; oil; oil analyses; Liard Basin; Maxhamish field; Chinkeh Formation; Mesozoic; Cretaceous
Illustrationsanalyses
ProgramShale-hosted petroleum ressource assesment, Geoscience for New Energy Supply (GNES)
LinksOnline - En ligne (PDF 0.4 MB)
AbstractThe Chinkeh oil at Maxhamish field in Liard Basin is a light sweet oil. Biomarker composition indicates the oil is sourced from marine shale, and was generated at a thermal maturity around 0.8-1.0% Ro vitrinite reflectance. The Devonian and Triassic shales are unlikely to have made any significant contribution to the Chinkeh oil accumulation based on their sharp difference in the distribution of sterane biomarkers. The even or balanced C27-C28-C29 sterane carbon number distribution pattern displayed by the Chinkeh oil suggests that its main source rock is of Cretaceous age or younger. Based on current geological and geochemical knowledge, the Cretaceous Garbutt shale overlying the Chinkeh sandstone is likely the main source rock for the Chinkeh oil accumulation at Maxhamish. However, this needs to be confirmed by further geochemical investigation on the Cretaceous Garbutt shale and the Triassic Toad/Grayling shale.
Summary(Plain Language Summary, not published)
The Chinkeh oil at Maxhamish field in Liard Basin is light sweet oil. Its molecular composition indicates the oil is sourced from marine shale, and was generated from mature source rocks. The organic geochemistry of hydrocarbons contained in the Chinkeh oil suggests that its main source rock is of Cretaceous age. Based on current geological and geochemical knowledge, the Cretaceous Garbutt shale overlying the Chinkeh sandstone is likely the main source rock for the Chinkeh oil accumulation at Maxhamish. However, this needs to be confirmed by further geochemical investigation.
GEOSCAN ID295895