Sequestration Site Selected for Carbon Dioxide Injection

A site in Western Wabash County has been selected as one of the demonstration locations for research on carbon dioxide (CO2) sequestration. The research is being conducted by the Illinois State Geological Survey (ISGS) and is sponsored by U.S. Department of Energy. The ISGS will work closely with the landowner and an oil and gas drilling company to conduct this investigation. Three closely spaced wells will be drilled to about 1,100 feet, one for CO2 injection and two for monitoring the movement of displaced gases. The test will determine the rate and capacity of a coal seam to adsorb CO2, a greenhouse gas. Up to 600 tons of CO2 will be injected over a period of up to 30 days. Coal adsorbs this gas while releasing methane, a potentially recoverable natural gas fuel that might add financial incentive to sequester the CO2. Extensive shallower monitoring of groundwater and soil gases will verify that the CO2 remains in the coal. Drilling is expected to begin July 2007 and CO2 injection is scheduled for May 2008, after completion of numerous analyses on the coal.