Interaction of Reaction, Mass Transport, and Rock Deformation During Diagenesis: Mathematical Modeling of Intergranular Pressure Solution, Stylolites, and Differential Compaction/Cementation
Thomas Dewers, Peter J. Ortoleva, 1990. "Interaction of Reaction, Mass Transport, and Rock Deformation During Diagenesis: Mathematical Modeling of Intergranular Pressure Solution, Stylolites, and Differential Compaction/Cementation", Prediction of Reservoir Quality Through Chemical Modeling, Indu D. Meshri, Peter J. Ortoleva
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The recognition and description of the physical processes responsible for pressure solution and associated cementation—including aspects of thermodynamics, reaction kinetics, solute transport, and rock mechanics-are important facets of research on diagenesis. The interplay between these processes is studied by means of mathematical models coupling water-rock interaction with rock deformation. Model predictions are compared with observed pressure solution/cementation features. Examples discussed include the grain-size dependence of intergranular volume loss, the transition between stylolitic and intergranular pressure solution, an assessment of the role of clay in influencing pressure solution, and the evolution and correlation of spatially discrete domains of heightened compaction and cementation in sandstones and argillaceous.
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Prediction of reservoir quality ahead of the drill is one of the most complex problems facing exploration geologists, especially when they are exploring in frontier basins, where rock and water data are minimal or non existent. Although useful descriptive models of diagenesis have existed in the past, they cannot be applied in the areas where rock and water data do not exist. This volume comes out of a 1987 conference oand contains 10 chapters that document the substantial progress made toward the goal of modeling reservoir quality. One facet of chemical modeling, namely porosity prediction, is the thrust of this book. However, chemical modeling has contributed heavily in the field of environmental geochemistry, nuclear waste disposal, and in the thermal recovery of heavy oil and the like, thus one such chapter is included in this memoir.