Pressure Buildup During CO2 Injection into a Closed Brine Aquifer

88Citations
Citations of this article
60Readers
Mendeley users who have this article in their library.
Get full text

Abstract

CO2 injected into porous formations is accommodated by reduction in the volume of the formation fluid and enlargement of the pore space, through compression of the formation fluids and rock material, respectively. A critical issue is how the resulting pressure buildup will affect the mechanical integrity of the host formation and caprock. Building on an existing approximate solution for formations of infinite radial extent, this article presents an explicit approximate solution for estimating pressure buildup due to injection of CO2 into closed brine aquifers of finite radial extent. The analysis is also applicable for injection into a formation containing multiple wells, in which each well acts as if it were in a quasi-circular closed region. The approximate solution is validated by comparison with vertically averaged results obtained using TOUGH2 with ECO2N (where many of the simplifying assumptions are relaxed), and is shown to be very accurate over wide ranges of the relevant parameter space. The resulting equations for the pressure distribution are explicit, and can be easily implemented within spreadsheet software for estimating CO2 injection capacity. © 2011 Springer Science+Business Media B.V.

Cite

CITATION STYLE

APA

Mathias, S. A., de Miguel, G. J. G. M., Thatcher, K. E., & Zimmerman, R. W. (2011). Pressure Buildup During CO2 Injection into a Closed Brine Aquifer. Transport in Porous Media, 89(3), 383–397. https://doi.org/10.1007/s11242-011-9776-z

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free