%0 Journal Article
%T An Experimental Study of the Effect of Rock/Fluid Interaction on Resistivity  Logs during CO<sub>2</sub> Sequestration in  Carbonate Rocks
%A Abdulrauf Adebayo
%A Mohammed Mahmoud
%J Journal of Geoscience and Environment Protection
%P 1-7
%@ 2327-4344
%D 2014
%I Scientific Research Publishing
%R 10.4236/gep.2014.23001
%X <p class=\"MsoNormal\">
	<span lang=\"EN-US\">Accurate laboratory measurements and analysis
of electrical properties of core samples are a prerequisite step to the
evaluation of oil and gas reserves. In recent times, this evaluation technique
has been adopted in carbon dioxide sequestration projects for estimating and
monitoring carbon dioxide (CO<sub>2</sub>) accumulation in saline aquifers. Several papers
have reported laboratory success in the use of resistivity measurements to
monitor the flow and also estimate the volume of CO<sub>2</sub> plume in geological
formations. Such laboratory experiments did not capture the effect of CO<sub>2</sub> -brine-rock
interaction (CBRI) on saturation estimation. The possibility of a change in
value resistivity due to CO<sub>2</sub>/brine/rock interactions, and the possible effect
on CO<sub>2</sub> monitoring and estimation are of immediate interest here. Preliminary
results of an ongoing research work showed that a much longer experiment time
accommodates CO<sub>2</sub>-brine-rock interaction which ultimately lead to change in rock
resistivity. We hereby present the electrical behavior of carbonates to CO<sub>2</sub>/ brine/rock
interaction during prolonged CO<sub>2</sub> sequestration and the effect on saturation estimation.
This electrical behavior and its possible effect on CO<sub>2</sub> monitoring and
estimation are discussed.</span> 
</p>
%K Carbon Dioxide Sequestration and Monitoring
%K Resistivity Log
%K Rock Fluid Interaction
%K Archie Equation
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=46753