Geothermal power production from abandoned oil wells
A simulation for the determination of geothermal power production from abandoned oil wells by injecting and retrieving a secondary fluid was performed. The analysis takes into consideration local geothermal gradients and typical well depths and pipe diameters. Isobutane is chosen as the secondary fluid, which is injected in the well at moderate pressures and allowed to heat up and produce vapor.
In general, 2–3 MW of electric power may be produced from wells that are typical in the South Texas region.