ExxonMobil's Shute Creek gas processing plant near LaBarge, Wyoming, is currently capturing around 7 million tonnes per annum of CO2.
The CO2 is transported via Exxon, ChevronTexaco and Anadarko pipelines to several oilfields in the state for use in enhanced oil recovery operations. ChevronTexaco’s Rangely Weber oilfield is utilising captured CO2 at a rate of 1Mtpa, with Anadarko’s Salt Creek oilfield storing around 2.4Mtpa. A 400-kilometre pipeline connecting Shute Creek gas plant to the Salt Creek oilfield was completed in 2006.
ExxonMobil expanded the capacity of the capture plant using Controlled Freeze Zone capture technology in 2010, at a cost of $86 million. The installation of compressors led to a 50% higher capture rate.
The Rangely oilfield has already stored around 25 million tonnes of CO2 since EOR began in 1986. Salt Creek, which began storing CO2 in 2004, is one of the largest EOR projects in the US.