Field tests prove microscale NRU to upgrade low-btu gas

Field tests of a scalable, microscale, N2-rejection unit have demonstrated the effectiveness of the portable and cost-effective NRU to upgrade low-pressure (<100 psig) and low-volume (≈ 100 Mcfd) low-btu gas to pipeline quality.The NRU was designed, constructed, and tested1 at Elmdale field (Chase County, Kan.) under a grant from the Stripper Well Consortium (SWC, Pennsylvania State University).The project was a joint effort between the Kansas Geological Survey (University of Kansas) and the American Energies Corp., Wichita.Low-btu gasPipeline specifications for natural gas in the US vary, but a heat content of 950 btu/cu ft is required for sale and transport. US reserves of natu...

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