Field Test of CO2 Injection and Storage in Lignite Coal Seam in North Dakota

Abstract

The paper describes a CO2 sequestration pilot test being conducted i n northwestern North Dakota in a lignite coal seam. Laboratory and field tests conducted to date indicate that the lignite provides a viable target for CO2 sequestration while, as could be expected, potential for methane production from lignite is questionable. It is suggested that in the future evaluation of gamma-ray logs and vertical pressure profiles can improve performance of enhanced coalbed methane production from lignites.