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SGS – Upside Potential of the Basal Mississippian Souris Valley Beds/Lodgepole Formation in Southeast Saskatchewan
May 24, 2023 @ 12:00 pm - 1:00 pm
Abstract
Prospecting for hydrocarbons along the Souris Valley Beds subcrop edge in Southeast Saskatchewan has met with very disappointing results (save for the Parkman Pool). This core display suggests an alternative model for future exploration activity. Klassen (1996) mapped Lodgepole shelf, slope and basin facies in Southwestern Manitoba and suggested that Southeast Saskatchewan represents deposition in a deeper non-reservoir facies.
This core presentation suggests erosion removed the reservoir in Southeast Saskatchewan and northwestern North Dakota. Stratigraphic cross-sections through the Daly and Virden Lodgepole Pools in southwestern Manitoba were studied as an analogue for exploring elsewhere in the basin and revealed Sequence Boundaries and ravinement surfaces/sea cliffs which show rapid sea level changes affecting preservation of the section.
The two cores on display are a composite of the Lodgepole Formation from Bakken/Lodgepole contact to top of the Lower Daly Member reservoir (Cruickshank Member in the Daly Pool (100/01-30-009-28W1/00; Cal. Stan. Daly), which represents the lower portion of the Lodgepole Formation, and Lower Daly Member reservoir facies at the top of the Lodgepole Formation (100/11-04-010-28W1/00; Daly Unit No. 1) in southwestern Manitoba). Erosion of the reservoir was likely initiated by reactivation of sinistral faults along the Churchill/Superior Boundary.
Speaker Biography
John Lake
Lake Geological Services Inc.
John received an Honours B.Sc in Earth Sciences from the University of Waterloo in 1973 and M.Sc in Earth and Atmospheric Sciences from McGill in 1977. Worked for Mobil Oil Canada in Calgary from 1979-1989 (Production Geology in Saskatchewan from 1983). Worked for Saskoil in Regina and Swift Current from 1990-1995, and has been a Consulting Geologist from 1995 – present. Experience includes Wellsite Geology and describing cores.
RSVP by noon, Tuesday, May 23.