JPT

 

Vol. 58 No. 8

August 2006

Unconventional Recovery

Numerical Simulation of CO2 and CO2/H2S Storage in Deep Saline Aquifers

The long-term storage potential of CO2 and CO2/H2S mixtures in deep saline aquifers was studied by use of a compositional reservoir simulator. Aquifer characteristics were varied to determine their effect on storage potential and injectivity. The opportunity for gas escape from the aquifer can be minimized by careful injection strategies. One such strategy is to use horizontal wells low in the formation so all injected gases are trapped, dissolved, or precipitated before they reach geological seals and/or faults.

Synopsis of SPE 97255  (335KB)

This article, written by Assistant Technology Editor Karen Bybee, contains highlights of paper SPE 97255, "Numerical Simulation of the Storage of Pure CO2 and CO2-H2S Gas Mixtures in Deep Saline Aquifers," by R.C. Ozah, SPE, S. Lakshminarasimhan, G.A. Pope, SPE, K. Sepehrnoori, SPE, and S.L. Bryant, SPE, U. of Texas at Austin, prepared for the 2005 SPE Annual Technical Conference and Exhibition, Dallas, 9-12 October.

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