Date of Award
Master of Science
Geological and Environmental Sciences
Dr. Christopher J. Schmidt
Dr. David Barnes
Dr. Michelle Kominz
Dr. John Vrona
Masters Thesis-Campus Only
The Lower Jurassic Navajo sandstone and the Middle Jurassic White Throne sandstone compose the primary reservoirs at Covenant Field, located in the Central Utah Thrust Belt. Analysis of the stratigraphic and structural features identified from resistivity image logs along with core and other well data permitted the definition of dune architecture in the eolian sandstone units, description of the fracture network, and estimation of the present day stress field.
The recent assignment of rocks previously known as "Upper Navajo" at Covenant Field to the White Throne sandstone is supported by stratigraphic analyses. Unique fracture populations were identified within the White Throne and Navajo sandstones, however the fractures do not appear to affect production characteristics at this time in the field's life. Based on the results of this study, effective field management practices and secondary recovery efforts should include consideration of unique permeability anisotropy directions in the White Throne and Navajo reservoirs and of the normal fault network that appears to provide inter-well and inter-reservoir communication.
Hartwick, "Fluid-Flow Architecture of Sandstone Reservoirs in the Covenant Field, Sevier County, Utah" (2010). Master's Theses. 312.