General Setting
Information Search and Selection

Com ments

on

Geo logic

Para meters

1 Depth:

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 Solu bility Brine

 12a Temperature:
12b Pressure:
12c Salinity:
13 Rock/Water Reaction:
14 Porosity:
15 Water Chemistry:
16 Rock Mineralogy:

Tuscaloosa Group, Alabama Gulf Coastal Plain

Comments on Geologic Parameters

6 Continuity:

Several authors have indicated that the sands in the lower Tuscaloosa Group are regionally continuous (Tucker and Kidd, 1973; Mancini and others, 1987). Alverson (1970) referred to lower Tuscaloosa Groups as a regionally continuous sand reservoir. The cross sections of Mancini and others (1987) provide direct evidence of the degree of sand-body continuity in the Lower Tuscaloosa Group. A large number of geophysical logs that penetrate the Tuscaloosa Group are available. From these logs, it would possible to determine sand-body continuity for the region, if CO2 sequestration in the area becomes a serious possibility.

6 Reference:

Alverson, R. M., 1970, Deep well disposal study for Baldwin, Escambia and Mobile Counties, Alabama: Alabama Geological Survey, Circular 58, 49 p.

Mancini, E. A., Mink, R. M., Payton, J. W., and Bearden, B. L., 1987, Environments of deposition and petroleum geology of the Tuscaloosa Group (Upper Cretaceous), South Carlton and Pollard Fields, southwestern Alabama: American Association of Petroleum Geologists Bulletin, v. 71, p. 1128–1142.

Tucker, W. E., and Kidd, R. E., 1973, Deep-well disposal in Alabama: Alabama Geological Survey, Bulletin 104, 229 p., 4 plates.