HR: 1340h
AN: H33A-1381    [Abstracts]
TI: Synchrotron Microtomography in CO2 Geosequestration Research
AU: * Tomutsa, L
EM: LTomutsa@lbl.gov
AF: Lawrence Berkeley National Laboratory, One Cyclotron Rd MS9116, Berkeley, CA 94720 United States
AU: Silin, D
EM: DSilin@lbl.gov
AF: Lawrence Berkeley National Laboratory, One Cyclotron Rd MS9116, Berkeley, CA 94720 United States
AU: Benson, S
EM: SMBenson@lbl.gov
AF: Lawrence Berkeley National Laboratory, One Cyclotron Rd MS9116, Berkeley, CA 94720 United States
AU: Patzek, T
EM: TWPatzek@lbl.gov
AF: Lawrence Berkeley National Laboratory, One Cyclotron Rd MS9116, Berkeley, CA 94720 United States
AB: Carbon dioxide is an important greenhouse gas. Significant research effort is being directed at evaluating approaches for preventing this gas from reaching the atmosphere. Geosequestration studies the feasibility of trapping the CO2 in geological formations or deep aquifers. To forecast the future behavior of sequestered gas, both laboratory and modeling studies are performed at various scales from kilometers to microns. Such forecast strongly depends on appropriate characterization of formation single and multiphase flow properties. Synchrotron based microtomography at the Advanced Light Source line 8.3.2 at Lawrence Berkeley National Laboratory allows visualizing the 3D-pore structure of rocks at resolutions approaching 1 micron. Sedimentary rocks such Berea and Frio sandstone have been imaged with resolutions adequate to characterize the pore structure for pore scale computations of fluid flow. The Maximum Inscribed Sphere image processing method is used to perform a direct morphological analysis of the pore space. This method allows calculation of petrophysical properties of these sandstones without resorting to pore networks.
DE: 1859 Rocks: physical properties
SC: Hydrology [H]
MN: Fall Meeting 2005