CO2 Brine Database

General Information
Geologic Parameters
1 Depth to Top:
2 Permeability/Hydraulic Conductivity:
3 Formation Thickness:
4 Net Sand Thickness:
5 Percent Shale:
6 Continuity:
7 Top Seal Thickness:
8 Continuity of top seal:
9 Hydrocarbon Production:
10 Fluid Residence Time:
11 Flow Direction Elevation:
12 CO₂ Solubility Brine	12a Temperature:
	12b Pressure:
	12c Salinity:
13 Rock/Water Reaction:
14 Rock Porosity:
15 Water Chemistry:
16 Rock Mineralogy:

Madison Group, Williston Basin

Comments on Geologic Parameters

7 Top Seal Thickness:

The Big Snowy Group and the Charles are the top seal for the Madison Group. The top-seal map (Peterson, 1981, in Downey, 1986) shows maximum thickness for the Big Snowy Group of about 1,000 ft.

7 Map:

map

7 Reference:

Downey, J. S., 1986, Geohydrology of bedrock aquifers in the northern Great Plains in parts of Montana, North Dakota, South Dakota and Wyoming: U.S. Geological Survey Professional Paper 1402-E, 87 p.

Downey, J. S., 1984, Geohydrology of the Madison and associated aquifers in parts of Montana, North Dakota, South Dakota and Wyoming: U.S. Geological Survey Professional Paper 1273-G, 47 p.