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:

Pottsville Formation, Black Warrior Basin, Alabama/Mississippi

Comments on Geologic Parameters

14 Porosity:

Different literature sources were used to find porosity information for the Pottsville Formation (Galicki, 1986; Beard and Meylan, 1987; E. Doherty, personal communication, 1999). This information from the oil fields was added to one of the oil- and gas-field maps. Although porosity data from oil fields range between 1.2 and 15 percent, normal faulting and lineaments present in the basin are the main factors that seems to control both porosity and permeability (Ortiz and others, 1993).

14 Map:

14 Reference:

Beard, R. H., and Meylan, M. A., 1987, Petrology and hydrocarbon reservoir potential of subsurface Pottsville (Pennsylvanian) sandstones, Black Warrior Basin, Mississippi: Gulf Coast Association of Geological Societies Transactions, v. 33. p 11–23.

Galicki, S., 1986, Mesozoic-Paleozoic producing areas of Mississippi and Alabama: Mississippi Geological Society.

Ortiz, I., Weller, R., and others, 1993, Disposal of produced waters: underground injection option in the Black Warrior Basin: Proceedings of the 1993 International Symposium: The University of Alabama/Tuscaloosa, p. 339–364.