Email RIS file
Bookmark
Report an Issue

Modeling supercritical CO2 injection in heterogeneous porous media [electronic resource].

Published:
Berkeley, Calif. : Lawrence Berkeley National Laboratory, 2003.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
8 pages : digital, PDF file
Additional Creators:
Lawrence Berkeley National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access:
Free-to-read Unrestricted online access
Summary:
We investigate the physical processes that occur during the sequestration of CO₂ in brine-bearing geologic formations using TOUGH2. An equation of state package that treats a two-phase (liquid, gas), three-component (water, salt, and CO₂) system is employed. CO₂ is injected in a supercritical state that has a much lower density and viscosity than the liquid brine it displaces. In situ, the supercritical CO₂ forms a gas-like phase, and also partially dissolves in the aqueous phase. Chemical reactions between CO₂ and rock minerals that could potentially contribute to mineral trapping of CO₂ are not included. The geological setting considered is a fluvial/deltaic formation that is strongly heterogeneous, making preferential flow a significant effect, especially when coupled with the strong buoyancy forces acting on the gas-like CO₂ plume. Key model development concerns include vertical and lateral grid resolution, grid orientation effects, and the choice of characteristic curves.
Report Numbers:
E 1.99:lbnl--52527
lbnl--52527
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
04/10/2003.
"lbnl--52527"
TOUGH Symposium 2003, Berkeley, CA (US), 05/12/2003--05/14/2003.
Pruess, Karsten; Doughty, Christine.
Assistant Secretary for Fossil Energy. Coal (US)
Funding Information:
AC03-76SF00098
G20401
View MARC record | catkey: 14072848