By OGJ editors
HOUSTON, Apr. 29 -- Projects to sequester carbon dioxide and test its use in enhanced oil recovery are under way in western Kentucky.
As much as 8,000 tons of CO2 is to be injected for 6 months into the Mississippian Jackson sandstone at 1,870 ft in a well in Sugar Creek field in Hopkins County.
Three producing wells operated by Gallagher Drilling Inc., Evansville, Ind., will be monitored for changes in production as the result of the CO2 injection, which is to start in mid-May. The geological surveys of Kentucky and Illinois are cooperating in the project.
Meanwhile, the Kentucky Geological Survey spud a well Apr. 23 in southeastern Hancock County, Ky., 8 miles southeast of Hawesville, with a projected total depth of 8,300 ft. Later CO2 is to be injected to test the capacity of various formations to serve as permanent storage for the substance, which is expected to turn supercritical.
The drilling follows the shooting of reflection seismic surveys in December 2008. Both projects are in the Illinois basin.