Kirk G. Osadetz

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We model numerically regions of the Canadian continental shelves during successive glacio-eustatic cycles to illustrate past, current and future marine gas hydrate (GH) stability and instability. These models indicated that the marine GH resource has dynamic features and the formation age and resource volumes depend on the dynamics of the ocean-atmosphere(More)
We evaluated geochemical compositions of 189 crude oils produced from Paleozoic reservoirs across the Williston Basin. Emphasis is placed on compositional variations in the gasoline range (i-C5H12-n-C8H18) to verify the biomarkerbased classi®cation of oil families. The oils belong to four distinct compositional oil families Ð A, B, C and DÐ broadly con®ned(More)
The middle Cretaceous Colorado Group of the Western Canadian Sedimentary Basin consists predominantly of mudstone deposited during major marine inundations interspersed with relatively thin sandstone and conglomerate beds. The Colorado Group petroleum system, containing a large portion of the light-medium oil and natural gas reserves within the Middle(More)
Field work in the Bowser and Sustut basins has found ‘live” oil stains in Bowser Lake Group sedimentary rocks. This provides direct evidence that there is an effective petroleum system in the Bowser Lake Group, specifically, and in the Bowser and Sustut basins, generally. Other, anecdotal evidence suggests that natural gas is seeping from sub-Bowser Lake(More)
Models of talik, permafrost and gas hydrate (GH) histories below shallow lakes are investigated and compared to models of Beaufort Mackenzie Basin (BMB) GH occurrences to describe lacustrine inundation effects, which are compared against factors controlling the variations among Mackenzie Delta (MD) permafrost, GH and talik occurrence. Models using a 2–4 °C(More)
The city of Calgary has been one of fastest growing cities in Canada in recent years. Rapid population growth and a warming climate trend have raised concerns about sustainable water supply. In this study, historic climate, stream flow and population data are analyzed in order to develop models of future climate trends and river-water resource availability.(More)
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