Cost,access and inefficiency drive the push for EOR research and the results-using nanobubbles and NGL-are showing promise.Even as drilling costs rise,leasing on government lands is getting tighter.At the same time,current production methods leave as much as 90 of the reserves in the ground,and many producers believe it is more efficient to revisit current formations than to rely solely on drilling for new production.Nano Gas Environmental and C3 Oilfield Services are making advances in EOR and IOR technologies.Nano Gas Environmental uses a specially designed nozzle to inject thousands of nanobubbles of nitrogen into the reservoir to boost oil recovery,while C3 is updating NGL injection into formations in a process called Single Shot IOR technology.
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