A type of Enhanced Oil Recovery (EOR), secondary production ... gas injection can entail re-injection of produced natural gas. In this instance, as the pressure drops in a natural gas field ...

accounting for nearly 60 percent of EOR production in the country. Gas injection uses gasses such as CO2, natural gas, or nitrogen that expand in a reservoir to push additional oil to a production ...

Isuzu Motors (Japan) announced Friday that it is partnering with Canadian company Westport Innovations to develop engines using Westport's Compressed Natural Gas Direct Injection (CNG-DI) technology.

In the 1970s and early 1980s, Chevron CVX led an EOR project in the Permian basin. CO2 came from natural gas processing plants ... I was involved with modeling injection of CO2 into coal seams ...