Prediction of capillary hysteresis in a porous material using lattice-Boltzmann methods and comparison to experimental data and a morphological pore network model

Ahrenholz, Benjamin; Tölke, Jonas; Lehmann, Peter; Peters, André; Kaestner, Anders; Krafczyk, Manfred; Durner, Wolfgang

doi:10.1016/j.advwatres.2008.03.009

Cited by 182 publications

(114 citation statements)

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“…Ahrenholz et al [22] compared LB to a morphological pore network model and experiment for the capillary hysteresis of water uptake to, and drainage from, a sand bed. To the best of our knowledge, LB has rarely been discussed in the context of cement--based materials.…”

Section: Introductionmentioning

confidence: 99%

Lattice Boltzmann simulations of the permeability and capillary adsorption of cement model microstructures

Zalzale

McDonald

2012

Cement and Concrete Research

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Section: Introductionmentioning

confidence: 99%

Lattice Boltzmann simulations of the permeability and capillary adsorption of cement model microstructures

Zalzale

McDonald

2012

Cement and Concrete Research

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“…This study focuses upon early marine cements in calcite-dominated grain-stones, as such rocks can often have good reservoir quality (high permeability and producibility) [10,11]. 35 We consider two types of grains which develop different types of early calcite cement [10]; both are common in reservoir rocks. Syntaxial calcite cement, sometimes also called epitaxial [12], is associated exclusively with monocrystalline grains (single crystal), while isopachous cement is a common early marine cement that develops on polycrystalline grains (consisting of multiple, often sub-40 resolution crystals) [13].…”

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confidence: 99%

Quantifying the impact of early calcite cementation on the reservoir quality of carbonate rocks: A 3D process-based model

Hosa

Wood

2017

Advances in Water Resources

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Quantifying the impact of early calcite cementation on the reservoir quality of carbonate rocks: a comparison of 2D and 3D process-based models Citation for published version: Hosa, OA & Wood, R 2017, 'Quantifying the impact of early calcite cementation on the reservoir quality of carbonate rocks: a comparison of 2D and 3D process-based models' Advances in Water Resources, vol. 104, General rightsCopyright for the publications made accessible via the Edinburgh Research Explorer is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. Take down policyThe University of Edinburgh has made every reasonable effort to ensure that Edinburgh Research Explorer content complies with UK legislation. If you believe that the public display of this file breaches copyright please contact openaccess@ed.ac.uk providing details, and we will remove access to the work immediately and investigate your claim. AbstractThe reservoir properties of carbonates are controlled both by deposition and diagenesis, and the latter includes early calcite cementation which can exert a strong control on the evolution of subsequent diagenetic pathways. Here we investigate early cement growth in grainstones to quantify the impact on evolving pore space and partially to examine trends in the relationships between cementation and permeability. We compare process-based models of early cementation in 2D (Calcite2D) and 3D (Calcite3D). Both models assume polycrystalline and monocrystalline grain types, upon which grow isopachous and syntaxial calcite cement types, respectively. We also model two common rhombohedral calcite forms: the blocky form 0112 and elongated form 4041.Results demonstrate the effect of cement competition: an increasing proportion of monocrystalline grains creates stronger competition and a reduction in the impact of individual grains on the early calcite cement volume and porosity.Isopachous cement is effective in closing pore throats and limiting permeability, especially in the 2D model. We also show that the impact of syntaxial cement on porosity occlusion and therefore flow is highly dependent on monocrystalline grain location and direction of the grain crystal axis. This can lead to very different permeabilities in samples of the same porosity in both the 2D and 3D * Hosa, AleksandraEmail address: ola.hosa@ed.ac.uk (Hosa, Aleksandra) These results illustrate that subtle differences in early carbonate diagenesis, such as the exact location and orientation of the crystal axes of the monocrystalline grains, can have significant impact on the properties of cemented rocks. Preprint submitted to Advances in Water ResourcesWe also highlight the importance of 3D, rather than 2D, digital rock modelling and flow simulation to obtain reliable rock properties predictions.

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“…The capillary pressure curve is usually measured directly by injecting a non-wetting phase, such as mercury, in a rock sample saturated with wetting phase. However, due to environmental concerns associated with mercury, computational methods have been successfully applied to simulate mercury intrusion through network modeling (Oren et al, 1998), lattice Boltzmann methods (Ahrenholz et al, 2008;Ramstad et al, 2009), and morphology-based methods (Silin et al, 2011). Capillary pressure curve depends on the type of fluid invasion mechanism, i.e.…”

Section: Capillary Pressure Curves From Pore-scale Modelingmentioning

confidence: 99%

Applications of digital core analysis and hydraulic flow units in petrophysical characterization

Chen

Zhou

2017

Adv. Geo-Energ. Res.

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Conventional petrophysical characterizations are often based on direct laboratory measurements. Although they provide accurate results, such measurements are time-consuming and limited by instrument and environment. What's more, in the georesource energy industry, availability and cuttings of core plugs are difficult. Because of these reasons, virtual digital core technology is of increasing interest due to its capability of characterizing rock samples without physical cores and experiments. Virtual digital core technology, also known as digital rock physics, is used to discover, understand and model relationships between material, fluid composition, rock microstructure and macro equivalent physical properties. Based on actual geological conditions, modern mathematical methods and imaging technology, the digital model of the core or porous media is created to carry out physical field numerical simulation. In this review, the methods for constructing digital porous media are introduced first, then the characterization of thin rock cross section and the capillary pressure curve using scanning electron microscope image under mixed wetting are presented. Finally, we summarize the hydraulic flow unit methods in petrophysical classification.Keywords: Digital core, porous media, petrophysical characterization, thin section, mercury injection capillary pressure.Citation: Chen, X., Zhou, Y. Applications of digital core analysis and hydraulic flow units in petrophysical characterization. Adv.

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Prediction of capillary hysteresis in a porous material using lattice-Boltzmann methods and comparison to experimental data and a morphological pore network model

Cited by 182 publications

References 56 publications

Lattice Boltzmann simulations of the permeability and capillary adsorption of cement model microstructures

Lattice Boltzmann simulations of the permeability and capillary adsorption of cement model microstructures

Quantifying the impact of early calcite cementation on the reservoir quality of carbonate rocks: A 3D process-based model

Applications of digital core analysis and hydraulic flow units in petrophysical characterization

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