Initial state of petroleum reservoirs: A comprehensive approach

Montel, François; Bickert, Jacques; Lagisquet, Aurélie; Galliéro, Guillaume

doi:10.1016/j.petrol.2006.03.032

Cited by 91 publications

(75 citation statements)

References 8 publications

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“…It is important to note that because the fluid column is heated from below, which corresponds to a RayleighBénard configuration, the system may be unstable and convection may occur at the reservoir scale (Montel et al 2007). However, during MD simulations, the Rayleigh number remains always below its critical threshold because of the small size (nm) of the simulation domain (Galliero and Montel 2008).…”

Section: Thermo-gravitation MD Algorithmmentioning

confidence: 99%

“…In a closed, convection free reservoir, the compositional variations are mainly determined by gravitational segregation (Høier and Whitson 2001). However, other phenomena may affect the compositional grading in real reservoirs (Holt et al 1983;Whitson and Belery 1994;Montel et al 2007). Among them is thermodiffusion, or Soret effect, induced by the geothermal gradient (Ghorayeb et al 2003;Montel et al 2007), which is a phenomenon that couples heat and mass fluxes (de Groot and Mazur 1984).…”

Section: Introductionmentioning

confidence: 99%

“…However, other phenomena may affect the compositional grading in real reservoirs (Holt et al 1983;Whitson and Belery 1994;Montel et al 2007). Among them is thermodiffusion, or Soret effect, induced by the geothermal gradient (Ghorayeb et al 2003;Montel et al 2007), which is a phenomenon that couples heat and mass fluxes (de Groot and Mazur 1984). The contribution of thermodiffusion is difficult to quantify, mainly due to a lack of experimental data as well as accurate modelling for multi-component mixtures.…”

Section: Introductionmentioning

confidence: 99%

“…-ground experiments (Croccolo et al 2012;Urteaga et al 2012;Giraudet et al 2014;Larrañaga et al 2015) on thermodiffusion in ternary mixtures that will take advantage of an extension of the theory of nonequilibrium fluctuations in ternary mixtures (Ortiz de Zárate et al 2014), -Molecular Dynamics (MD) simulations of thermodiffusion in multicomponent mixtures in bulk (Galliero et al 2003;Galliero et al 2009;Artola and Rousseau 2013) and confined situations (Galliero et al 2006;Hannaoui et al 2013), -developing models to take into account thermodiffusion when describing the initial state of a reservoir (Montel et al 2007;Touzet et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…The main focus of this article is on the influence of gravitational and geothermal fields in a convection free configuration. We have neglected the influence of the porous media on segregation and thermodiffusion which is a reasonable assumption at the steady state providing the permeability is not too low (Shapiro and Stenby 2000;Platten and Costeseque 2004;Montel et al 2007;Hannaoui et al 2013). To apply this approach, two mixtures have been selected, a synthetic one composed of methane, n-butane and n-dodecane (C 1 -nC 4 -nC 12 ), and one representing a realistic acid gas, rich in carbon dioxide and lean in hydrogen sulphide.…”

Section: Introductionmentioning

confidence: 99%

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Impact of Thermodiffusion on the Initial Vertical Distribution of Species in Hydrocarbon Reservoirs

Galliéro

Bataller

Croccolo

et al. 2015

Microgravity Sci. Technol.

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In this work we propose a methodology, based on molecular dynamics simulations, to quantify the influence of segregation and thermodiffusion on the initial state distribution of the fluid species in hydrocarbon reservoirs. This convection-free approach has been applied to a synthetic oil composed of three normal alkanes and to a real acid gas. It has been found that the thermodiffusion effect induced by the geothermal gradient is similar (but opposite in sign) to that due to segregation for both mixtures. In addition, because of the combined effect of thermal expansion Guillaume Galliero guillaume.galliero@univ-pau.fr and thermodiffusion, it has been observed that the density gradient can be reversed, in the presence of a geothermal gradient. These numerical results emphasize the need of improving our quantification of thermodiffusion in multicomponent mixtures. The SCCO-SJ10 experiments will be a crucial step towards this goal.

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Section: Thermo-gravitation MD Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Impact of Thermodiffusion on the Initial Vertical Distribution of Species in Hydrocarbon Reservoirs

Galliéro

Bataller

Croccolo

et al. 2015

Microgravity Sci. Technol.

Self Cite

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A low‐disturbance nonequilibrium molecular dynamics algorithm applied to the determination of thermal conductivities

2015

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A new nonequilibrium molecular dynamics algorithm is proposed for the determination of thermal conductivity and other transport properties. The proposed algorithm aims at diminishing the energy drift problem observed in this type of method while conserving linear momentum and being compatible with constrained molecules. The features of the proposed algorithm are evaluated by determining thermal conductivities of water at 323 K, n-octane at 300 K, and argon close to its triple point, and by comparing these results with those obtained using established methods. The analysis of systems presenting diverse molecular characteristics allowed us to assess the usefulness of the proposed algorithm. The energy drift and temperature variation were reduced in the range of 10-80%, depending on the parameters of the proposed algorithm and the characteristics of the system. The determined thermal conductivities showed good agreement when compared to experimental and simulation data.

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Impact of density gradients on the fluid flow inside a vibrating cavity subjected to soret effect

2012

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Computational fluid dynamics simulations of thermovibrational flows in a square cavity filled with a water–isopropanol mixture has shown that inaccurate density calculations can predict very different flow behaviours. Specifically, comparison has been made between two density calculation models, viz., a weighted‐average scheme and the Perturbed Chain Statistical Associating Fluid Theory equation of state. While the latter approach predicts a stronger flow in the cavity due to the convective instabilities that are induced by the large spatial gradients in density, the weighted‐average scheme cannot predict this since it does not explicitly depend on the temperature of the mixture. © 2012 Canadian Society for Chemical Engineering

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Initial state of petroleum reservoirs: A comprehensive approach

Cited by 91 publications

References 8 publications

Impact of Thermodiffusion on the Initial Vertical Distribution of Species in Hydrocarbon Reservoirs

Impact of Thermodiffusion on the Initial Vertical Distribution of Species in Hydrocarbon Reservoirs

A low‐disturbance nonequilibrium molecular dynamics algorithm applied to the determination of thermal conductivities

Impact of density gradients on the fluid flow inside a vibrating cavity subjected to soret effect

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