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TitlePetrophysical analyses of hydrocarbon reservoirs and overpressure zones in Tertiary deep-marine strata in the northern Beaufort-Mackenzie Basin, Arctic Canada
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AuthorHu, K; Dietrich, J R; Chen, Z; Hannigan, P K
SourceGeological Survey of Canada, Open File 8368, 2018, 36 pages, https://doi.org/10.4095/306960
Year2018
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediaon-line; digital
File formatpdf
ProvinceNorthwest Territories; Northern offshore region
NTS107C/05; 107C/06; 107C/07; 107C/08; 107C/09; 107C/10; 107C/11; 107C/12; 107C/13; 107C/14; 107C/15; 107C/06; 107D/05; 107D/06; 107D/11; 107D/12; 107D/13; 107D/14; 107E/03; 107E/04; 107E/05; 107E/06; 107E/11; 107E/12; 107E/13; 107E/14; 107F; 107G/01; 107G/02; 107G/03; 107G/04; 107H/03; 107H/04; 117D/06; 117D/07; 117D/08; 117D/09; 117D/10; 117D/11; 117D/14; 117D/15; 117D/16; 117E/01; 117E/02; 117E/03; 117E/06; 117E/07; 117E/08; 117E/09; 117E/10; 117E/11; 117E/14; 117E/15; 117E/16; 117H/01; 117H/02; 117H/03
AreaBeaufort Sea; Mackenzie Delta; Tuktoyaktuk Peninsula
Lat/Long WENS-139.0000 -130.0000 71.2500 69.2500
Subjectsfossil fuels; marine geology; sedimentology; stratigraphy; geophysics; petrophysics; petroleum resources; petroleum occurrence; petroleum exploration; hydrocarbon potential; petroleum occurrence; reservoir rocks; bedrock geology; lithology; sedimentary rocks; sandstones; siltstones; limestones; shales; porosity; permeability; wells; gas wells; oil wells; geophysical logging; well logging; drill stem tests; core samples; depositional environment; sedimentation rates; zoning; stratigraphic analyses; Oligocene; Pliocene; Beaufort-Mackenzie Basin; Beaufort Shelf; Kenalooak J- 94 Well; Koakoak O-22 Well; Kopanoar M-13 Well; Kopanoar 2I-44 Well; Nektoralik K-59 Well; Nerlerk M-98 Well; Orvilruk O-03 Well; Siulik I-05 Well; Kugmallit Sequence; Iperk Sequence; water saturation; overpressure zones; Phanerozoic; Cenozoic; Tertiary
Illustrationsgeoscientific sketch maps; cross-sections, structural; well logs; lithologic sections; cross-plots; histograms; profiles; plots; cross-sections, stratigraphic
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Location
 
Natural Resources Canada Library - Ottawa (Earth Sciences)
 
ProgramFrontier basin analysis, Geoscience for New Energy Supply (GNES)
Released2018 03 09
AbstractThis report describes the petrophysical analyses of reservoir characteristics, hydrocarbon occurrences, and overpressure zones in deep-marine Tertiary strata in eight wells (Kenalooak J-94, Koakoak O-22, Kopanoar M-13, Kopanoar 2I-44, Nektoralik K-59, Nerlerk M-98, Orvilruk O-03 and Siulik I-05) in the northern Beaufort-Mackenzie Basin. Well logs and drill stem test data, calibrated with available cores, are analyzed for each well, with interpretations of lithology, shale content, porosity, permeability, and water saturation. Log-identified (untested) hydrocarbon reservoirs occur in sandstones and siltstones in most of the evaluated wells. Most of the tested hydrocarbon reservoirs in the northern Beaufort-Mackenzie Basin occur in porous and permeable sandstones and siltstones of the Oligocene Kugmallit Sequence. Additionally, the Nektoralik K-59 well encountered a hydrocarbon reservoir in a Pliocene limestone. Overpressure zones are identified in each of the studied wells. Most hydrocarbon reservoirs occur below or within overpressure zones. The stratigraphic framework of overpressure zones and hydrocarbon reservoirs, and observed sandstone porosity-depth trends indicate probable linkages between rapid deposition of Pliocene Iperk sediments, overpressure development, and porosity preservation.
Summary(Plain Language Summary, not published)
This report describes the petrophysical analyses of reservoir characteristics, hydrocarbon occurrences, and overpressure zones in deep-marine Tertiary strata in eight wells in the northern Beaufort-Mackenzie Basin (Kenalooak J-94, Koakoak O-22, Kopanoar M-13, Kopanoar 2I-44, Nektoralik K-59, Nerlerk M-98, Orvilruk O-03 and Siulik I-05). Core, well log, and drill stem test data are analysed for each well, with interpretations of lithology, shale content, porosity, permeability, and water saturation. Most of the tested hydrocarbon reservoirs in the northern Beaufort-Mackenzie Basin occur in porous and permeable sandstones and siltstones of the Oligocene Kugmallit sequence. One hydrocarbon reservoir is in a Pliocene limestone bed in the Nektoralik K-59 well. Log-identified (untested) hydrocarbon reservoirs occur in sandstones and siltstones in most of the wells evaluated. Overpressure zones occur in each well, with most hydrocarbon reservoirs occurring below or within overpressure zones.
GEOSCAN ID306960