CO2 injection is one way oil companies could recover heavy crude oil found deep underground. The process is called Enhanced Oil recovery, or EOR.
Worldwide Storage
Scientists believe depleted oil and gas fields could store 740-1,850 gigatons (billion metric tons) of CO2. However, they believe deep saline aquifers could hold the most CO2, with 2,200-10,000 gigatons. To put this in perspective, the world emits about 24 gigatons of CO2 from fossil fuels every year.
Gulf Coast Storage
In the United States, the Gulf Coast is a prime candidate for CO2 sequestration using deep saline aquifers. According to the Bureau of Economic Geology, 220 billion tons of CO2 could be stored by filling just 1% of the brine volume from Alabama to the Mexico border.
Related links
