Characterization and Analysis of Porosity and Pore Structures

Anovitz, Lawrence M.; Cole, David R.

doi:10.2138/rmg.2015.80.04

Cited by 830 publications

(524 citation statements)

References 559 publications

(533 reference statements)

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“…Thus, one could use the pore equivalent diameter in shape analysis to indicate the degree of pore heterogeneity/asymmetry based on rod-like shapes, which is equal to 6.70, 18.58, and 25.44 % for samples S 1 , S 2 , and S 3 . As discussed in the literature (Anovitz and Cole, 2015;Chang et al, 2006;Okazaki et al, 2014), a number of pore form factors have been used to quantify pore shapes that might be correlated to the macroscopic properties of sedimentary rocks. Among these factors, flatness, elongation, and roundness are commonly used.…”

Section: Quantifying Shapes Of Pore Ganglia and Detached Pore Networkmentioning

confidence: 99%

Classification and quantification of pore shapes in sandstone reservoir rocks with 3-D X-ray micro-computed tomography

et al. 2016

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Abstract. Recent years have seen a growing interest in the characterization of the pore morphologies of reservoir rocks and how the spatial organization of pore traits affects the macro behavior of rock-fluid systems. With the availability of 3-D high-resolution imaging, such as x-ray microcomputed tomography (µ-CT), the detailed quantification of particle shapes has been facilitated by progress in computer science. Here, we show how the shapes of irregular rock particles (pores) can be classified and quantified based on binary 3-D images. The methodology requires the measurement of basic 3-D particle descriptors (length, width, and thickness) and a shape classification that involves the similarity of artificial objects, which is based on main pore network detachments and 3-D sample sizes. Two main pore components were identified from the analyzed volumes: pore networks and residual pore ganglia. A watershed algorithm was applied to preserve the pore morphology after separating the main pore networks, which is essential for the pore shape characterization. The results were validated for three sandstones (S 1 , S 2 , and S 3 ) from distinct reservoirs, and most of the pore shapes were found to be plate-and cube-like, ranging from 39.49 to 50.94 % and from 58.80 to 45.18 % when the Feret caliper descriptor was investigated in a 1000 3 voxel volume. Furthermore, this study generalizes a practical way to correlate specific particle shapes, such as rods, blades, cuboids, plates, and cubes to characterize asymmetric particles of any material type with 3-D image analysis.

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Section: Quantifying Shapes Of Pore Ganglia and Detached Pore Networkmentioning

confidence: 99%

Classification and quantification of pore shapes in sandstone reservoir rocks with 3-D X-ray micro-computed tomography

et al. 2016

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“…The measured slag SA is sensitive to measurement method; 22) at the μm to mm scale the PSD and roundness are the primary features, at the nm to μm scale surface roughness and porosity (ϕ) are the dominant features. The contribution of ϕ to SA is dependent on the average pore diameter (ϕ D ); equivalent ϕ with a smaller ϕ D necessitates a longer total pore length and a larger potential SA due to the faster increase in volume over surface area for an expanding sphere.…”

Section: Surface Areamentioning

confidence: 99%

Effect of Solidification and Cooling Methods on the Efficacy of Slag as a Feedstock for CO<sub>2</sub> Mineralization

Myers

Nakagaki

2018

ISIJ Int.

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Iron and steel making (ISM) slag is often utilized to partially offset CO 2 emissions associated with metal production. Currently, the primary recycling method for slag is as β-Ca 2 SiO 4 utilized in the cement industry, termed ground granulated blast furnace slag (ggbs). However, the cement market is not large enough to exploit the entirety of ISM slag as ggbs, relegating a large quantity of slag to reuse pathways with minor impacts on CO 2 reduction. Recent years have seen an increase in research into mineralizing CO 2 using the Ca and Mg content of ISM slags as a feedstock. Unfortunately, it has not been widely recognized that the solidification and cooling processes of slag dramatically effects its efficacy as a CO 2 mineralizing feedstock via modification of mineralogy, crystallinity, grain size, and micromorphology. This paper clarifies the key properties determining mineralization effectiveness and elucidates how to control these properties during the solidification and cooling process. The effect of solidification and cooling method on net CO 2 reduction is shown to be strongly dependent on solidification and cooling method along with the CO 2 intensity of energy generation.

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“…A variety of methods have been developed over the past decades to determine porosity, pore morphology and pore size distribution, each having a characteristic pore size range (Anovitz and Cole, 2015). Some common direct approaches include gas expansion techniques such as helium pycnometry (He-pycnometry) and Mercury Intrusion Porosimetry (MIP) (Anovitz and Cole, 2015;Tiab and Donaldson, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Some common direct approaches include gas expansion techniques such as helium pycnometry (He-pycnometry) and Mercury Intrusion Porosimetry (MIP) (Anovitz and Cole, 2015;Tiab and Donaldson, 2015). These techniques both yield information on the bulk interconnected porosity in 3D volumes.…”

Section: Introductionmentioning

confidence: 99%

Multiscale porosity estimates along the pro-and retrograde deformation path: an example from Alpine slates

Akker¹,

Kaufmann²,

Desbois³

et al. 2018

Preprint

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Abstract. Estimating porosity of slates is of great interest for the recently rising industries dealing with the underground such as CO2 sequestration, nuclear waste disposal and shale gas but also for engineering purposes in 15 terms of mechanical stability for underground or surface constructions. In this study, we aim understanding Additionally, porosity and pore morphology are strongly dependent on mineralogy, sample homogeneity and 30 strain.

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Characterization and Analysis of Porosity and Pore Structures

Cited by 830 publications

References 559 publications

Classification and quantification of pore shapes in sandstone reservoir rocks with 3-D X-ray micro-computed tomography

Classification and quantification of pore shapes in sandstone reservoir rocks with 3-D X-ray micro-computed tomography

Effect of Solidification and Cooling Methods on the Efficacy of Slag as a Feedstock for CO<sub>2</sub> Mineralization

Multiscale porosity estimates along the pro-and retrograde deformation path: an example from Alpine slates

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