Synthetic data were analyzed to determine the most cost-effective tomographic monitoring system for a geologic carbon sequestration injection site. Double-difference tomographic inversion was performed on 125 synthetic data sets: five stages of CO2 plume growth, five seismic event regions, and five geophone arrays. Each resulting velocity model was compared quantitatively to its respective synthetic velocity model to determine accuracy. The results were examined to determine a relationship between cost and accuracy in monitoring, verification, and accounting applications using double-difference-tomography. The geophone arrays with widely varying geophone locations, both laterally and vertically, performed best.
Optimization of Geophone Array for Monitoring Geologic Carbon Sequestration Using Double-Difference Tomography
Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received October 17, 2012; final manuscript received May 14, 2013; published online September 12, 2013. Assoc. Editor: Kau-Fui Wong.
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Fahrman, B., Westman, E., Karfakis, M., and Luxbacher, K. (September 12, 2013). "Optimization of Geophone Array for Monitoring Geologic Carbon Sequestration Using Double-Difference Tomography." ASME. J. Energy Resour. Technol. March 2014; 136(1): 012004. https://doi.org/10.1115/1.4024718
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