CANYON SAND S.W. TEXAS EXAMPLE OF A LOW PERMEABILITY GAS RESERVOIR
Ali Trabelsi Independent geological consultant Lubbock, Tex. Canyon sands are Upper Pennsylvanian deposits found in the Val Verde basin and on the Permian Basin eastern shelf, Texas (Fig. 1), and occur in a thick clastic sequence overlying the Strawn limestone. These sandstones are considered to have been deposited during Missourian time and are formally named after the Canyon group deposited on the eastern shelf. The Canyon sand has provided commercial gas production for over 30 years.