- Natural gas reservoirs with high CO2 concentrations as natural analogs for CO2 storage

- Natural gas reservoirs with high CO2 concentrations as natural analogs for CO2 storage

Publisher Summary This chapter discusses that natural gas accumulations with high CO2 concentrations may be useful natural analogs for the study of long-term CO2 storage in geologic strata if viewed in the context of “CO2 systems.” The CO2 system concept can provide important information about the behavior of CO2 in the subsurface over geologic time scales, specifically determining the length of time that CO2 has been trapped in the subsurface. This storage duration parameter is important for providing a degree of security about whether or not CO2 that is pumped into geologic strata will stay in traps for thousands of years at a minimum. Furthermore, the CO2 system approach can identify the source and migration pathways. The migration pathways and traps can be studied to see if there are any chemical or physical signs of the CO2-rich fluids, e.g. dissolution due to acidic CO2-rich fluids or precipitation of exotic carbonate minerals.

Greenhouse Gas Control Technologies 7

2005-01-01

Brennan, Sean T.

Adrian, Hughes V.

S. Julio, Freidmann

Robert C., Burruss

Rubin, E.S.

Keith, D.W.

Gilboy, C.F.

Wilson, M.

Morris, T.

Gale, J.

Thambimuthu, K.

Book Section

Z8PJL4VQ

978-0-08-044704-9