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The AAPG/Datapages Combined Publications Database
West Texas Geological Society
Abstract
Potential for Improved 
Oil
Recovery (IOR) in the Permian Basin Unconventional Reservoirs
Abstract
Due to the recent development of unconventional oil reservoirs in the Permian Basin, the daily oil production from the region has increased from 842,782 barrels per day in January 2007 to 3,406,000 barrels per day in August 2018 (eia, 2018). Due to the nature of unconventional reservoirs, primary recovery is low. With current technology, primary recoveries appear to be less than 10% of original oil in place. Consequently, there is enormous potential for Increased Oil Recovery (IOR) from the unconventional oil reservoirs in the Permian Basin. This paper gives an overview of the IOR methods that are being evaluated for future use and/or being tested in the Permian Basin. The results of these IOR methods in other basins will be discussed as well as the potential for these methods in the Permian Basin. The following IOR methods will be discussed: CO2 huff and puff; wet gas huff and puff; dry gas huff and puff; water flooding; surfactant flooding; CO2 flooding; and High Pressure Air Injection (HPAI).
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