Experimental investigation of the effect of dissolution on sandstone permeability, porosity, and reactive surface area

Colón, Carlos F. Jové; Oelkers, Eric H.; Schott, Jacques

doi:10.1016/j.gca.2003.06.002

Cited by 74 publications

(38 citation statements)

References 44 publications

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“…Laboratory experiments related to CO 2 injection into sandstone and carbonate rocks have been reported in the previous studies [15,[18][19][20][21][22]. These experiments indicate that CO 2 -water-rock interactions can have a substantial effect on porosity and permeability, depending on fluid composition, rock mineralogy, and subsurface thermodynamic conditions.…”

Section: Introductionmentioning

confidence: 62%

Numerical Investigation into the Impact of CO₂-Water-Rock Interactions on CO₂ Injectivity at the Shenhua CCS Demonstration Project, China

Yang¹,

Li²,

Atrens³

et al. 2017

Geofluids

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A 100,000 t/year demonstration project for carbon dioxide (CO 2 ) capture and storage in the deep saline formations of the Ordos Basin, China, has been successfully completed. Field observations suggested that the injectivity increased nearly tenfold after CO 2 injection commenced without substantial pressure build-up. In order to evaluate whether this unique phenomenon could be attributed to geochemical changes, reactive transport modeling was conducted to investigate CO 2 -water-rock interactions and changes in porosity and permeability induced by CO 2 injection. The results indicated that using porosity-permeability relationships that include tortuosity, grain size, and percolation porosity, other than typical Kozeny-Carman porosity-permeability relationship, it is possible to explain the considerable injectivity increase as a consequence of mineral dissolution. These models might be justified in terms of selective dissolution along flow paths and by dissolution or migration of plugging fines. In terms of geochemical changes, dolomite dissolution is the largest source of porosity increase. Formation physical properties such as temperature, pressure, and brine salinity were found to have modest effects on mineral dissolution and precipitation. Results from this study could have practical implications for a successful CO 2 injection and enhanced oil/gas/geothermal production in low-permeability formations, potentially providing a new basis for screening of storage sites and reservoirs.

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Section: Introductionmentioning

confidence: 62%

Numerical Investigation into the Impact of CO₂-Water-Rock Interactions on CO₂ Injectivity at the Shenhua CCS Demonstration Project, China

Yang¹,

Li²,

Atrens³

et al. 2017

Geofluids

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“…However, it is difficult to measure the absolute size of the reactive surface area in practice, because the dissolution rate of the elements in samples might change during the dissolving process due to the variation of the dissolution environment, such as the pH value and saturation. That is why a number of models that described the dissolution process were based on the total surface area measured by the gas adsorption (Brunauer et al 1938) or the geometrical constructions (Lichtner 1988, Canals and Meunier 1995, Le Gallo et al 1998, Colón et al 2004, Emmanuel and Berkowitz 2005 or other methods (Fredrich et al 1993, Shiraki et al 2000, Lüttge et al 2003, Noiriel et al 2004, such as vertical scanning interferometry, atomic force microscopy, laser confocal microscopy, or X-ray tomography.…”

Section: Reactive Surface Areamentioning

confidence: 99%

Fractal analysis in particle dissolution: a review

Bao

Long

et al. 2014

Reviews in Chemical Engineering

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Abstract:Fractal is a geometric language to describe the objects, the systems, and the phenomenon spatially and temporally. This paper reviews the literature on fractal models developed to describe the dissolution of particles. Dissolution, the process by which a solid forms a homogeneous mixture with a solution, is the behavior of a population of particles rather than a single one in most of the cases. The fractal models developed for the particle population are reviewed on the basis of two key particle surface properties, namely, the surface fractal nature and the chemical reactivity of particle surfaces. In terms of the surface fractal nature, fractals have been used to describe the change in the superficial roughness of particles, surface area-particle size relation, and particle size distribution (PSD). In terms of the reactive fractal dimensions, the models that describe the dissolution process have been developed to obtain the empirical noninteger exponent, the reactive fractal dimension that can dictate the chemical reactivity of a solid surface. The comparison between the surface fractal dimension and the reactive fractal dimension provides the dissolution mechanisms in many aspects of surface morphology. Further research is necessary to modify the current models to coincide with the real industrial processes and production and to develop the specific models for a better understanding of many processes involving the dissolution of particles encountered in many areas, including pharmaceutical and chemical applications and hydrometallurgy.

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“…During the oilfield development, water is injected into reservoirs to maintain the formation pressure, to sweep oil from the rock surface, and to push it towards production wells (Liu et al, 2012). Although it is commonly believed that the long-term fluid-solid interaction between oil, water and rock, has a tremendous impact on the pore structure (Colón et al, 2004;Crandell et al, 2010), the evolution principles of pore network topology and transport properties are still ambiguous.…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of reservoir pore/throat characteristics evolution during long-term waterflooding

Wang

Han

Dong

et al. 2017

Adv. Geo-Energ. Res.

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Formation pore structure and reservoir parameters change continually during waterflooding due to sand production, clay erosion, and pressure/temperature variation, which causes great challenge in geological modeling and simulation. In this work, the XA Oilfield, a block with more than 20 years' waterflooding history, is used as an example to better understand the fundamental evolution mechanisms of reservoir pore network characteristics over long time waterflooding. We performed a large number of core analyses and experiments to obtain formation parameters (e.g., permeability, porosity, relative permeability, and etc.) at different development stages. The comparison illustrates that reservoir permeability can not only decrease with clay plugging, but also increase by the detachment of fine particles and even the destruction of microscopic structure. We also observed that the point/line contacts among grains decreases, the pore network connectivity increases, the clay content reduces and the rock trends to be more hydrophilic with increasing water injection. Moreover, we developed a pore network model to simulate the variation of formation parameter. The model parameters are also compared and analyzed to get a qualitative understanding of the evolvement laws, which will provide a useful guidance for reservoir accurate modeling.Keywords: Reservoir parameter variation, permeability, water flooding, pore network model, core analysis.Citation: Wang, S., Han, X., Dong, Y., et al. Mechanisms of reservoir pore/throat characteristics evolution during long-term waterflooding.

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Experimental investigation of the effect of dissolution on sandstone permeability, porosity, and reactive surface area

Cited by 74 publications

References 44 publications

Numerical Investigation into the Impact of CO₂-Water-Rock Interactions on CO₂ Injectivity at the Shenhua CCS Demonstration Project, China

Numerical Investigation into the Impact of CO₂-Water-Rock Interactions on CO₂ Injectivity at the Shenhua CCS Demonstration Project, China

Fractal analysis in particle dissolution: a review

Mechanisms of reservoir pore/throat characteristics evolution during long-term waterflooding

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Experimental investigation of the effect of dissolution on sandstone permeability, porosity, and reactive surface area

Cited by 74 publications

References 44 publications

Numerical Investigation into the Impact of CO2-Water-Rock Interactions on CO2 Injectivity at the Shenhua CCS Demonstration Project, China

Numerical Investigation into the Impact of CO2-Water-Rock Interactions on CO2 Injectivity at the Shenhua CCS Demonstration Project, China

Fractal analysis in particle dissolution: a review

Mechanisms of reservoir pore/throat characteristics evolution during long-term waterflooding

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Product

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Numerical Investigation into the Impact of CO₂-Water-Rock Interactions on CO₂ Injectivity at the Shenhua CCS Demonstration Project, China

Numerical Investigation into the Impact of CO₂-Water-Rock Interactions on CO₂ Injectivity at the Shenhua CCS Demonstration Project, China