Numerical study of pressure evolution from CO2 injection in saline Aquifers

Kue Young Kim, Weon Shik Han, Taehee Kim

Research output: Contribution to journalArticlepeer-review


Injectivity is one of several key parameters that determine the effectiveness of the geologic formation targeted for CO2 injection. In general, the injectivity depends on various factors including the formation permeability, formation thickness, relative permeability, and porosity reduction due to mineral precipitation. Salt-precipitation caused by evaporation of brine into the CO2 stream near injection well is one of the important factors that reduce the injectivity. The objective of this study is to evaluate the effect of parameters such as formation permeability, porosity, residual gas saturation, and residual liquid saturation on salt-precipitation and corresponding permeability (k) reduction. Specific combination of injection rate and permeability caused a dramatic increase of solid NaCl saturation at the lower part of aquifer, which contributes to high pressure build-up and eventually lowers the injectivity.

Original languageEnglish
Pages (from-to)4532-4537
Number of pages6
JournalEnergy Procedia
Publication statusPublished - 2011

Bibliographical note

Funding Information:
XAFS experiments were carried out at X1, HASYLAB, DESY, Hamburg, Germany, which is supported by TMR Contract ERBFMGECT950059 of the European Community, and at the National Synchrotron Light Source, Brookhaven National Laboratory, Brookhaven, New York, which is supported by the U.S. Department of Energy, Division of Materials Sciences and Division of Chemical Sciences under Contract DE-AC02-98CH10886.

Funding Information:
This work was supported by STW/NWO, The Netherlands, under Project 349-3787 and has been performed under the auspices of NIOK and PIT.

All Science Journal Classification (ASJC) codes

  • Energy(all)


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