GEOSCAN, résultats de la recherche


TitreDiagenetic study of Tertiary sequences, Beaufort-Mackenzie Basin - Phase 1
AuteurCMH Petrology Consultant Inc.
SourceCommission géologique du Canada, Dossier public 7138, 2012, 1014 pages, (Accès ouvert)
Documentdossier public
Mediaen ligne; numérique
Référence reliéeCette publication est reliée Schmidt, V; (1987). Petrological/diagenetic study of Upper Cretaceous and Tertiary strata, Beaufort-Mackenzie Basin, Phase I: preliminary analysis and interpretation of samples from core, outcrop, and drill cuttings, Commission géologique du Canada, Dossier public 1534
ProvinceTerritoires du Nord-Ouest; Région extracotière du nord
SNRC107A; 107B; 107C; 107D; 107E; 117A/01; 117A/02; 117A/07; 117A/08; 117A/09; 117A/10; 117A/15; 117A/16
Lat/Long OENS-137.0000 -128.0000 71.0000 68.0000
Sujetsdiagenèse; roches sédimentaires; grès; reservoirs; migration des fluides; porosité; analyses pétrographiques; maturation; analyses minéralogiques; milieu sédimentaire; bassins; pétrographie; pétrole; exploration pétrolière; présence de pétrole; Bassin de Beaufort-mackenzie ; Séquence d'Aklak ; Séquence de Taglu ; Séquence de Richards ; Séquence de Kugmallit ; sédimentologie; minéralogie; pétrologie ignée et métamorphique; combustibles fossiles; Cénozoïque; Mésozoïque; Crétacé; Tertiaire
Illustrationstables; photographs; photomicrographs
Bibliothèque de Ressources naturelles Canada - Ottawa (Sciences de la Terre)
ProgrammeCorridor et delta du Mackenzie, GEM : La géocartographie de l'énergie et des minéraux
Diffusé2012 05 31
Résumé(disponible en anglais seulement)
The Geological Survey of Canada (GSC) is involved with a multi-disciplinary study of petroleum systems of the Beaufort-Mackenzie region of Arctic Canada under the Earth Sciences Sector Geo-Mapping for Energy and Minerals (GEM) Program. As part of this research, a contracted petrological study of petroleum reservoir quality was undertaken to investigate the post-depositional controls on porosity and permeability of the Tertiary (Paleogene age; 62 - 24 Ma) sedimentary sequences (Aklak, Taglu, Richards and Kugmallit sequences) that host petroleum discoveries in the area. Porosity is important for calculating the volume of petroleum within a reservoir and permeability affects that rate at which petroleum can be produced. Both parameters are critical for evaluating the economic viability of individual petroleum prospects and for assessing the petroleum resource potential of the area. Generally, porosity and permeability are high at the time of sediment deposition but both are reduced by mechanical compaction with increasing sediment burial. As temperature and burial depth increase, diagenetic processes such as mineral dissolution or precipitation (cementation) can further enhance or reduce porosity and permeability. This study focuses on how cementation processes affect reservoir quality and it builds on the previous work of Dr. Volkmar Schmidt which is summarized in GSC Open File 1534. The report is rich in petrographic descriptions and contains many photographic images of rock cores and thin sections used for microscopic examination. These results provide a firm foundation for future studies of the diagenetic evolution of sedimentary successions of the Beaufort-Mackenzie Basin. This study was funded by the former Beaufort-Mackenzie consortium of companies (BP Canada Energy Company, Chevron Canada Limited, ConocoPhillips Canada Resources Corporation, Imperial Oil Resources Ventures Limited, MGM Energy Corporation, and Shell Exploration and Production Company).