Part 4 - Berg - Hughes Center
Part 4 - Berg - Hughes Center
Part 4 - Berg - Hughes Center
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heat flow results in thermogenic gas generation being initiated at a depth of 12,000 feet<br />
for the North Louisiana Salt Basin compared to a depth of 16,500 feet for the Mississippi<br />
Interior Salt Basin.<br />
Initial Resource Reservoir Assessment<br />
The assessment of the undiscovered and underdeveloped reservoirs of the North<br />
Louisiana Salt Basin was made based on the oil and gas production reported from the<br />
reservoirs in the North Louisiana Salt Basin and from the reservoirs in the Mississippi<br />
Interior Salt Basin (Table 2), and on the results from the basin analysis study of these<br />
basins. The potential undiscovered reservoirs in the North Louisiana Salt Basin are<br />
Triassic Eagle Mills sandstone and deeply buried Upper Jurassic sandstone and<br />
limestone. Potential underdeveloped reservoirs include Lower Cretaceous sandstone and<br />
limestone and Upper Cretaceous sandstone.<br />
Smackover Petroleum System<br />
The Smackover petroleum system was characterized for the Mississippi Interior<br />
Salt Basin in Mancini et al. (2003) and in our 2006 DOE report on the resource<br />
assessment of the deep gas resource of the onshore interior salt basins for the North<br />
Louisiana Salt Basin (Mancini et al., 2006, 2008). The description of this petroleum<br />
system is summarized as follows. The underburden rocks include Paleozoic crystalline<br />
and sedimentary rocks, Upper Triassic to Lower Jurassic graben-fill red beds, Middle<br />
Jurassic evaporates, and Upper Jurassic siliciclastics, and the overburden strata consist of<br />
Upper Jurassic, Cretaceous, and Tertiary deposits (Mancini et al., 2003, 2008) (Fig. 328).<br />
Lower to middle lime mudstone beds of the Upper Jurassic Smackover Formation serve<br />
as the regional source rocks for the onshore salt basins (Oehler, 1984; Sassen et al.,<br />
387