GEOSCAN Search Results: Fastlink


TitleHow is stratigraphic modeling of frontier basins dependent on data: a case study of the Shelburne sub-basin, offshore SE Canada
AuthorNagle, J; Marfisi, E; Piper, D J WORCID logo; Pe-Piper, G; Sainte-Ange, F
SourceMarine and Petroleum Geology vol. 132, 105227, 2021 p. 1-18,
Alt SeriesNatural Resources Canada, Contribution Series 20200028
Mediapaper; on-line; digital
File formatpdf; html
ProvinceEastern offshore region; Nova Scotia
NTS10; 20
AreaAtlantic Ocean; Scotian Shelf; Georges Bank
Lat/Long WENS -68.5000 -62.5000 43.3333 40.0000
Subjectsmarine geology; stratigraphy; sedimentology; geophysics; Nature and Environment; Science and Technology; stratigraphic models; modelling; sedimentary basins; offshore wells; computer simulations; bedrock geology; lithology; sedimentary rocks; sandstones; limestones; shales; clastics; salt; igneous rocks; volcanic rocks; structural features; faults; continental margins; sedimentation; paleoenvironment; depositional environment; bathymetry; isopachs; geophysical interpretations; seismic interpretations; geophysical surveys; seismic surveys, marine; sedimentary petrology; detritus; provenance; deltaic deposits; Shelburne Sub-Basin; Scotian Basin; DionisosFlow(TM); Monterey Jack E-43 Well; Mohawk B-93 Well; Bonnet P-23 Well; Cost G-2 Well; Shelburne Delta; Yarmouth Arch; Phanerozoic; Mesozoic; Jurassic
Illustrationsgeoscientific sketch maps; stratigraphic charts; seismic sections; seismic profiles; tables; models
Released2021 07 10
AbstractFrontier basins are difficult to model with forward stratigraphic modeling software, due to the limited amount of geological information available from sparse wells and limited seismic coverage. Five different simulations with varying amounts of geological information are compared to a geologically constrained reference case model using all available data for the Shelburne sub-basin, in order to understand the relative importance of various geologically constrained parameters to modeling frontier basins. The modeling has been performed with DionisosFlow(TM), a 4D multilithology diffusion-based deterministic forward stratigraphic modeling software. All five less constrained models resemble the major features of the reference case model, with a similar distribution of sand on the shelf and localized progradation of sand across a delta into deep-water. In detail, there are significant deviations in sedimentation patterns. Not all geologically constrained parameters are equally important to modeling; the most influential parameters are paleobathymetry and sediment thickness defined by seismic surfaces. In this case study, the model could not be calibrated unless three sediment input points were chosen, as demonstrated independently from detrital petrology studies. Predefining certain modeling parameters generally reduces computational time. Unconstrained models offer a first overview of the probable architecture of the basin, and are a useful tool which can reduce the overall computation time of the modeling process and give insight into sedimentation patterns.
Summary(Plain Language Summary, not published)
Making numerical models of petroleum basins based on the input of sediment is an established method of analysing the potential distribution of hydrocarbon reservoirs. This study investigates what types of data are most important for creating such models.

Date modified: