Subsurface and seismic investigation of the geopressured-geothermal potential of the Abbeville area of south Louisiana

Abstract

The structure investigated is a basin roughly bounded by the Abbeville Dome on the West, the Erath Dome on the Southeast and the Grosse Isle Dome on the >Jortheast and whose center is located at approximately Section 31 T14S R 4 E .The geopressured sands investigated are below approximately 12,800 feet (3,901 M:I in the center of the basin and consist of two groups of rather thin, discontinuous, marly sands. These two groups, rather arbitrarily defined, are termed the upper and lower geopressured sands and the following map types and. analyses have been derived from subsurface data of each: structure, temperature, pressure, salinity and net sand maps; and porosity, permeability and methane content analyses.