Statistical Analysis and Experimental Design for Screening of Carbon Dioxide Sequestration in Brine Aquifers

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Farasat, Amir | 2012

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 43440 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Pishvaie, Mahmoud Reza; Masihi, Mohsen
Abstract:
It is believed that the carbon dioxide emissions are likely to be the dominant drivers of climate change over the coming century. Geological sequestration in saline aquifers is a potential technology for mitigating carbon dioxide emission in atmosphere. In this study, computer simulation is combined with experimental design to perform sensitivity analysis and estimation of carbon dioxide sequestration in saline aquifers. For this purpose, horizontal permeability, vertical to horizontal permeability ratio, porosity, depth, pressure gradient, temperature gradient, water salinity, formation thickness, diffusivity coefficient, dip, irreducible water saturation, water Corey exponent, gas Corey exponent and injection rate are selected as effective parameters in the process. Then Latin Hypercube Space Filling Design was used to construct 125 simulation cases prepared using CMG GEM module. Finally, the best surrogate model of hydrodynamic, solubility, residual and mineral trapping mechanisms are constructed by using Box Cox transform and the most important parameters in each mechanism are identified by T test.
Keywords:
Experiments Design ; Surrogate Model ; Sensitivity Analysis ; Carbon Dioxide Sequestration ; Saline Aquifer

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