Novel Approach to Experimental Studies of Mineral Dissolution Kinetics. Final Technical Report for September 1, 2004-August 31, 2008

摘要

Currently, DOE is conducting pilot CO(sub 2) injection tests to evaluate the concept of geological sequestration. The injected CO(sub 2) is expected to react with the host rocks and these reactions can potentially alter the porosity, permeability, and mechanical properties of the host or cap rocks. Reactions can also result in precipitation of carbonate-containing minerals that favorably and permanently trap CO(sub 2) underground. Many numerical models have been used to predict these reactions for the carbon sequestration program. However, a firm experimental basis for predicting silicate reaction kinetics in CO(sub 2) injected geological formations is urgently needed to assure the reliability of the geochemical models used for the assessments of carbon sequestration strategies.