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ECMOR V - 5th European Conference on the Mathematics of Oil Recovery
- Conference date: 03 Sep 1996 - 06 Sep 1996
- Location: Leoben, Austria
- ISBN: 3-9500542-0-0
- Published: 03 September 1996
41 - 48 of 48 results
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Superconvergent Renormalization and Tensor Approximation
More LessA real reservoir can have a complex geometric and geologic description and use of a non-orthogonal grid allows great flexibility and realism in the modeling process.
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Dual Mesh Method for Multiphase Flows in Heterogeneous Porous Media
Authors S. Verdiere, D. Guérillot and J. -M. ThomasMore and more computerized models provide reservoir descriptions of million ceIls, which correspond to the complexity of the heterogeneities met in natural rocks. Fluid flow simulations within these media need upscaling techniques.
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Two-Phase Flow Upscaling for 3D Sedimentary Structures
Authors G. E. Pickup, K. S. Sorbie and T. R. GoodThe "geopseudo" method for flow upscaling aims to capture the effects of geological structure at different scales (e.g. lamina-scale; bed-scale) so that they may be included in reservoir-scale simulations. This process may be time consuming, since the scale-up must be carried out in several stages. At each stage detailed grids of the permeability variations must be created, and a two-phase simulation must be performed to calculate the pseudo flow parameters.
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Homogenization of Flow Equations Using the MHD Equation: Numerical Validation
Authors R. Lenormand and M. R. ThieleHomogenized equations capture flow mechanisms at a sub-gridblock scale and allow for more accurate transport equations to be implemented in numerical simulators. Homogenized equations can also improve the calculation of pseudofunctions like pseudo relative permeabilities and alpha factors. In this study we validate a new form of a homogenized equation previously denved by Lenormand using fine-grid numerical simulations.
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Optimisation of Production Strategies using Stochastic Search Methods
Authors P. R. King, T. J. Harding and N. J. RadcliffeThis paper describes the application of stochastic search techniques to the production scheduling of a group of linked oil and gas fields. The goal was the maximisation of total net present value and a genetic algorithm using problem-specific crossover operators was particularly successful in this respect
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Direct and Inverse Problems of the Fluid Dispersion in the Real Reservoir
Authors Y. P. Zheltov, M. Y. Zheltov and O. N. SardanashviliMovement of the fluids, saturating porous media of the real reservoirs,can be, in many cases, especially by miscible displacement, considered as a dispersion process.This process may be caused not only by molecular and convective diffusion, but as weIl by strata heterogeneity. As examples, solutions of the dispersion equation for layered and fractured-porous reservoirs are given. On the base of this solutions inverse method is developed, which permits to evaluate heterogeneous strata properties.
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Prediction of Relative Permeability and Capillary Pressure from Pore-Scale Modelling
Authors P. -E. Øren, S. Bakke, L. Scandellari Nilsen and A. HenriquezThe present paper presents a new metbod for constructing realistic and fully characterised 3-D network representations of the pore space for actual sandstones.
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Accurate Calculations of Compressibility Factor for Pure Gases and Gas Mixtures
Authors T. A. Obeida, Z. E. Heinemann and M. KrieberneggAn accurate method to predict volumetric behavior of gas mixtures, such as in the case of underground gas storage where the in-situ gas is mixed with the injected gas, is presented in this paper.
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