Farnsworth

The Farnsworth Unit is a CO₂-enhanced oil recovery (CO₂-EOR) project located in Ochiltree County, Texas, and Beaver County, Oklahoma, within the northeastern Texas Panhandle and western Anadarko Basin margin. The field produces primarily from Pennsylvanian-age Morrow and Chester sandstone reservoirs, characterized by heterogeneous lenticular sand bodies with stratigraphic trapping and variable permeability. Discovered in the mid-20th century, the field underwent primary production followed by waterflooding before transitioning to miscible CO₂ injection to recover residual oil and provide long-term CO₂ storage. The Farnsworth CO₂ flood was initiated as part of a CCUS development integrating anthropogenic CO₂ sources with tertiary oil recovery. Injected CO₂ mobilizes residual oil through miscible displacement and is partially recycled through production facilities, with the remaining CO₂ retained in the reservoir through structural, residual, and solution trapping. The project has served as a significant monitoring and verification case study, incorporating advanced reservoir characterization, monitoring wells, tracers, and modeling to evaluate plume behavior and containment performance. https://www.southwestcarbonpartnership.org/