American Energy Production Inc(fka AENP)

[rooktrader]

good morning all. coach, was there ever a doubt? :) 2005 o & g map of tx: http://www.beg.utexas.edu/UTopia/images/pagesizemaps/oilgas.pdf

can you say darst creek-buda:

Giddings field, the largest field in a 10- to 20-mile-wide trend (figs. 1, 16), extends from Mexico through Central Texas and into northwest Louisiana. The primary producing reservoir is the Austin Chalk (Upper Cretaceous, 85–90 million years old), with secondary production from the Taylor (Upper Cretaceous) and deeper Buda and Georgetown Formations (Lower Cretaceous, 98–105 million years old). Today the Austin Chalk outcrops at the surface along a belt that runs from Del Rio on the Texas-Mexico border, northeast through San Antonio, then north through Austin, Waco, and Dallas. The Chalk then dips gently (2°) to the southeast into the subsurface. In Giddings field, the Austin Chalk reservoir ranges in burial from 5,500 ft TVD in Milam County to over 15,000 ft TVD in Austin County. The Austin Chalk (as well as the Buda and Georgetown) is a fractured carbonate reservoir, with limited matrix porosity (1–5%) and permeability (0.003–0.03 md). The Austin Chalk in Giddings field, ranging from 150 to 750 ft in thickness, consists of interbedded chalk and marl (limestone with shale). It was deposited in a low-energy, open-marine setting, where very fine calcium carbonate debris could settle slowly to the seafloor. Most hydrocarbon production in the Austin Chalk comes from an extensive network of fractures. Localization of these fracture networks is controlled by bending of the formation in areas with a gentle southeast dip. Clean chalk beds fracture when bent, whereas the marl/shale beds will not. Local disturbance by salt domes also influences fracture development. The updip (northwest) limit of Giddings field is defined by the burial depth of the Eagleford Shale. This shale was deposited between the Austin Chalk and underlying Buda/Georgetown rocks. The Eagleford Shale contains carbon-rich layers that serve as the hydrocarbon source, when buried to sufficient depths. Where it is not buried deep enough to generate oil and gas (northwest of Giddings field), the Cretaceous reservoirs are not productive. The downdip (southeast) limitation is primarily technology. As depth to the reservoir increases, temperature and pressure increase such that current drilling and LWD (logging while drilling) technology is insufficient to drill economic horizontal wells.