Spatially resolved measurement of rock core porosity

Marica, Florea; Chen, Q.; Hamilton, Alister; Hall, Christopher; Al, Tom A.; Balcom, Bruce J.

doi:10.1016/j.jmr.2005.09.003

Cited by 47 publications

(29 citation statements)

References 19 publications

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“…Porosity is one of the most fundamental parameters describing porous media [2] [3]. Moreover, its correct quantification is essential for flow, heat and mass transfer parameters such as permeability, tortuosity, thermal conductivity and diffusion coefficient [3].…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Natural Vuggy Fractured Porous Medium: Its Physicochemical Properties, Porosity and Permeability

Romero-Guzmán¹,

Reyes-Gutiérrez²,

Klapp³

et al. 2018

JMMCE

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The aim of this work was to obtain the physicochemical properties by SEM, XRD, FTIR analyses and the surface characteristics from carbonate outcrops cores such as pore diameter, surface area, porosity and permeability. The methods used to characterize them were Scanning Electron Microscopy, SEM; X Ray Diffraction, DRX; Fourier Transform Infrared Spectroscopy, FTIR. The porosity and permeability of natural vuggy fractured porous medium from core samples was determined obtained in the laboratory with conventional procedures. The cores have smooth and rough surfaces with porous with several sizes. Some crystals appear in preferential zones mainly composed by calcium, carbon and oxygen. Apparently into free spaces were found the organic materials, organic residues of crude oil. The cores have smooth and rough surfaces with porous with several sizes. Some crystals appear in preferential zones composed by calcium, carbon and oxygen. Apparently into free spaces were found the organic materials, organic residues of crude oil. The main inorganic compound in cores is calcite, (CaCO 3 ). The porosity was for porous core 26% and for solid core 8.5%. The values obtained show that the cores have permeability where the fluid migrates through the particles at 2.23 × 10 −4 cm/s.

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Section: Introductionmentioning

confidence: 99%

“…Traditional methods for core analysis are based on bulk measurement, which will average over any heterogeneity present in the sample [2]. Fossil fuels will account for 80 percent of the worlds primary energy mix by 2030.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Natural Vuggy Fractured Porous Medium: Its Physicochemical Properties, Porosity and Permeability

Romero-Guzmán¹,

Reyes-Gutiérrez²,

Klapp³

et al. 2018

JMMCE

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“…Particle Imaging Velocimetry) and provides immense scope for detailed analysis of both sub-surface flow-related processes and analysis of the surface-subsurface interactions and the sediment boundary for open-flow research. Despite very limited evidence of the use of MRI by river-based researchers, the benefits of this technique have been long since exploited in wider flowsediment disciplines with examples including: sedimentary structure in sandstone cores [1], acquiring 3D bed structure of sand-gravel sediments [2], hydro-carbon bearing in sedimentary rocks for the oil and gas industry [3] and mapping of flow velocity through porous media [4]. Thus, the present paper seeks to develop an appropriate equipment and methodology that suited for two purposes; (i) imaging open-channel flow with focus of interest on surface and subsurface regions, and (ii) undertaking quantitative image analysis appropriate to ascertaining relationships between flow processes and open-pore framework structure.…”

Section: Introductionmentioning

confidence: 99%

Characterization of flow transport within pore spaces of an open-work gravel bed

Lakshmanan

Pender

Haynes

et al. 2014

IJET

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Analysis of the flow dynamics within the near-bed and sub-surface regions of river bed sediment is critical in understanding fluid exchange and related chemical transfer/reactions. The knowledge in above is limited as these regions are difficult to measure using traditional instrumentation methods. In this paper, we tried the use of Magnetic Resonance Imaging (MRI) technique to non-invasively image flow dynamics of simulated river bed. We developed a bespoke MRI-compatible open-channel flume in order to acquire real-time flow images from within the MRI bore and used contrast agent (Gd-DTPA) as a tracer through an immobile, porous gravel bed. Single MR Image slices along the flume length were obtained for analysis. The flow tracer images from within the sediment bed are calibrated from the output data in order to provide fully quantitative maps of tracer concentration at regular time intervals. These 'whitebox' (i.e. data from within the porous bed) tracer profiles were evaluated with the CXTFIT computer package to estimate the transport parameters. The intention was both, to illustrate the appropriateness of MRI for flow-sediment research and to analyse the relationship between tracer dispersion and gravel framework structure.

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“…Experimental and analysis methods have been developed to resolve spatial distributions of fundamental properties for describing flow that are unavailable by any other means. These include porosity (Watson et al 2002;Fantazzini et al 2004;Marica et al 2006), permeability Watson 2011, 2013), fluid saturations (Chen et al 1993;Davies et al 1994;Li et al 2007), and fluid velocities (Chang and Watson 1999). Equipment used to conduct experiments in the field normally employs much smaller magnetic fields and more limited radio-frequency controls, and they lack the means to pulse magnetic-field gradients.…”

Section: Introductionmentioning

confidence: 99%

A Nonparametric Approach for Determining NMR Relaxation Distributions

Watson

2014

Transp Porous Med

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Nuclear magnetic resonance (NMR) and imaging (MRI) can provide unique information about fluid distributions, flow, transport properties, and morphology within permeable media. The mathematical description of NMR relaxation of fluids in permeable media is one key element used to develop such information. We introduce and evaluate nonparametric regression theory to determine continuous relaxation distribution functions from NMR/MRI experiments. Unlike other methods, ours is based on determining the best estimate of the distribution function from experimental data. Our method is robust and does not require user interventions, so it is particularly valuable for accurately determining fluid distributions from MRI experiments. Such information is essential for determining porosity, permeability, and fluid saturation distributions, as well as permeable media morphologies.

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Spatially resolved measurement of rock core porosity

Cited by 47 publications

References 19 publications

Characterization of Natural Vuggy Fractured Porous Medium: Its Physicochemical Properties, Porosity and Permeability

Characterization of Natural Vuggy Fractured Porous Medium: Its Physicochemical Properties, Porosity and Permeability

Characterization of flow transport within pore spaces of an open-work gravel bed

A Nonparametric Approach for Determining NMR Relaxation Distributions

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