1. Energy and the Environment: Tapping the Potential for Large Volume Storage of Carbon in the Gulf Coast Susan Hovorka Bureau of Economic Geology Jackson School of Geosciences The University of Texas at Austin

2. What is Geologic Sequestration? Waste CO 2 from combustion of fossil fuel is now released to the atmosphere Rather than releasing the CO 2, it can be injected underground below and separated from potable water and isolated or sequestered from the atmosphere for thousands of years

3. Brine Aquifers >1000m Coal (USGS) Oil and Gas (USGS) Power generation (IEA) Early sources (IEA data) U.S. Geologic Storage Potential

4. Saline Formations Vision for the Future in Texas Ozone non attainment Sources (dot size =release) Refineries and chemical plants Electric power plants Selected oil field that could benefit from EOR Existing CO 2 pipeline Future CO 2 pipeline

5. Field Pilot Project in the Houston Area Inject and closely monitor CO 2 injection and sequestration under ideal conditions $3 million federal funding DOE Test date: fall 2003 3,000 metric tons CO 2 from BP’s Texas City refinery Injected in a non-productive sandstone of the Frio Formation, Research team: BEG, Texas American Resources, Sandia Technologies, Transpetco, Schlumberger, Geo-Seq (3 national labs), NETL

6. An new well will be drilled near an existing well 3000 tons of food-grade carbon dioxide (CO 2 ) will be trucked from the BP Texas City refinery and be injected 5000 feet deep into the Frio formation over period of a few weeks Closely monitor the movement of the carbon dioxide underground and at the surface to see how well the actual movement matches the computer model

7. Crosswell Seismic and VSP Will Image Interwell Region 100% CO 2 0% CO 2 Top Frio B Sand C Sand Downgoing From. L. Myer, Lawrence Berkeley National Lab

9. More Information: www.beg.utexas.edu/co2