RESERVOIR CHARACTERIZATION OF THE PERMIAN WHITE RIM SANDSTONE AND BLACK BOX DOLOMITE AND ANALYSIS OF THE WOODSIDE FIELD FOR CO2 SEQUESTRATION, SAN RAFAEL SWELL, EMERY COUNTY, EAST-CENTRAL UTAH

This study assesses reservoir potential of the Upper Permian White Rim Sandstone and Black Box Dolomite at Woodside Field for carbon dioxide sequestration. The Woodside anticline is an asymmetric, north-south trending anticline approximately 11 miles long and 4 miles wide. Wells in Woodside Field have produced nitrogen, carbon dioxide, and helium from the Permian Kaibab Formation. The eolian White Rim Sandstone is composed of fine to medium sand and exhibits at least three facies. The lower facies are sheet sands with sabkha, interdune, small dune, and low-angle cross-stratified deposits. The middle facies compose the majority of the White Rim Sandstone and are dominated by high-angle trough-cross stratified eolian dune sets. The upper facies lack bedding structures, contain signs of bioturbation, and are interpreted as marine reworked eolian deposits. Caliche paleosols lie at the top of the White Rim Sandstone and also contain signs of significant bioturbation. The Black Box Dolomite is predominately massive dolomite and sandy dolomite(?) observed in the Spotted Wolf Canyon area. Serving as a seal to these potential reservoirs, the Black Dragon Member of the Triassic Moenkopi Formation is composed of primarily mudstones and siltstones.