A unified approach to mechanical compaction,pressure solution,mineral reactions and the temperature distribution in hydrocarbon basins |
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| Institution: | 1. Dept. of Geology, Tarbiat Modares University, 14115-175 Tehran, Iran;2. Dept. of Geosciences, Pennsylvania State University, University Park, 16802, PA, USA;1. Young Researchers and Elite Club, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran;2. Department of Petroleum Engineering, Petroleum University of Technology (PUT), Ahwaz, Iran;3. Young Researchers and Elite Club, North Tehran Branch, Islamic Azad University, Tehran, Iran;4. Young Researchers and Elite Club, Meybod Branch, Islamic Azad University, Meybod, Iran;5. School of Environment, Science and Engineering, Southern Cross University, Lismore, NSW, Australia |
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| Abstract: | In modelling sediment compaction and mineral reactions, the rheological behaviour of sediments is typically considered as poroelastic or purely viscous. In fact, compaction due to pressure solution and mechanical processes in porous media is far more complicated. A generalised model of viscoelastic compaction and the smectite to illite mineral reaction in hydrocarbon basins is presented. A one-step dehydration model of the mineral reaction is assumed. The obtained non-linear governing equations are solved numerically and different combinations of physical parameters are used to simulate realistic situations in typical sedimentary basins. Comparison of numerical simulations with real data has shown very good agreement with respect to both the porosity profile and the mineral reaction. |
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