Deepwater petroleum system of Jurassic-Tertiary sediments of the Scotian Basin, offshore Nova Scotia, Eastern Canada

Author(s): Mukhopadhyay, Prasanta K.; Wade, John A.; Kruge, Michael A.; Samoun, Alain; Harvey, Paul J.
Author Affiliation(s): Primary:
Global Geoenergy Research, Halifax, NS, Canada
Other:
Geological Survey of Canada, Canada
Southern Illinois University, United States
Lawrence Livermore National Laboratory, United States
Nova Scotia Petroleum Directorate, Canada
Volume Title: AAPG annual convention with SEPM
Source: Annual Meeting Expanded Abstracts - American Association of Petroleum Geologists, Vol.2002, p.127; AAPG annual convention with SEPM, Houston, TX, March 10-13, 2002. Publisher: American Association of Petroleum Geologists and Society of Economic Paleontologists and Mineralogists (AAPG), Tulsa, OK, United States. ISSN: 0094-0038 CODEN: APGAB2
Note: In English
Summary: We have evaluated the hydrocarbon prospects of selected slope and outer shelf areas to the southeast and south of Sable and Shelburne subbasins of the Scotian Basin, offshore Nova Scotia, Eastern Canada. Only five wells have been drilled within the Upper Jurassic to Miocene sediments on the continental slope off Scotian Basin. None of these wells have discovered any hydrocarbons. At least eight source rock facies are identified or projected (from the DSDP/ODP wells) in sediments from the Middle Jurassic (Callovian) to Tertiary Banquereau formations. Organic-rich amorphous organic facies that have anoxic signatures are likely present in intervals within local "microbasins". These "microbasins" have developed, primarily, in association with major growth fault or salt diapirism. Maturity data indicates a decrease in heat flow from west to east and wide variability within various "microbasins". Numerical modeling documents at least three pulses of hydrocarbon expulsion and migration from the source rock units. Hydrocarbon migration follows the path of major growth faults and fractures caused by salt movement. The presence of pockmarks on the Scotian Slope indicates probable gas seepage, which supports the modeling.
Year of Publication: 2002
Research Program: DSDP Deep Sea Drilling Project
ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; 29 Economic Geology, Energy Sources; Atlantic Ocean; Basins; Canada; Cenozoic; Chemically precipitated rocks; Continental shelf; Deep Sea Drilling Project; Deep-water environment; Diapirs; Eastern Canada; Evaporites; Facies; Faults; Gas seeps; Hydrocarbons; Jurassic; Marine environment; Maritime Provinces; Mesozoic; Migration; North Atlantic; Nova Scotia; Ocean Drilling Program; Oil wells; Organic compounds; Outer shelf; Petroleum; Petroleum exploration; Salt tectonics; Scotian Basin; Scotian Shelf; Scotian Slope; Sedimentary basins; Sedimentary rocks; Slope environment; Source rocks; Stratigraphic units; Tectonics; Tertiary; Thermal maturity
Record ID: 2005056281
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States

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