Understanding the micro structure of Berea Sandstone by the simultaneous use of micro-computed tomography (micro-CT) and focused ion beam-scanning electron microscopy (FIB-SEM)

Bera, Bijoyendra; Mitra, Sushanta K.; Vick, D.

doi:10.1016/j.micron.2010.12.002

Cited by 135 publications

(68 citation statements)

References 19 publications

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“…SRXTM methods may be complemented with nanoscale approaches such as focused-ion-beam scanning electron microscopy (Keller et al, 2011;Bera et al, 2011), transmission electron microscopy (Kanitpanyacharoen et al, 2011) and X-ray nanotomography (Nelson et al, 2011;Grew et al, 2010). Overall, this round-robin experiment of SRXTM documented that all three beamlines produce similar results with microstructural resolution of approximately 2 mm.…”

Section: Discussionmentioning

confidence: 77%

A comparative study of X-ray tomographic microscopy on shales at different synchrotron facilities: ALS, APS and SLS

Kanitpanyacharoen

Parkinson

Carlo

et al. 2012

J Synchrotron Radiat

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Synchrotron radiation X-ray tomographic microscopy (SRXTM) was used to characterize the three-dimensional microstructure, geometry and distribution of different phases in two shale samples obtained from the North Sea (sample N1) and the Upper Barnett Formation in Texas (sample B1). Shale is a challenging material because of its multiphase composition, small grain size, low but significant amount of porosity, as well as strong shape-and lattice-preferred orientation. The goals of this round-robin project were to (i) characterize microstructures and porosity on the micrometer scale, (ii) compare results measured at three synchrotron facilities, and (iii) identify optimal experimental conditions of high-resolution SRXTM for fine-grained materials. SRXTM data of these shales were acquired under similar conditions at the Advanced Light Source (ALS) of Lawrence Berkeley National Laboratory, USA, the Advanced Photon Source (APS) of Argonne National Laboratory, USA, and the Swiss Light Source (SLS) of the Paul Scherrer Institut, Switzerland. The data reconstruction of all datasets was handled under the same procedures in order to compare the data quality and determine phase proportions and microstructures. With a 10Â objective lens the spatial resolution is approximately 2 mm. The sharpness of phase boundaries in the reconstructed data collected from the APS and SLS was comparable and slightly more refined than in the data obtained from the ALS. Important internal features, such as pyrite (high-absorbing), and low-density features, including pores, fractures and organic matter or kerogen (low-absorbing), were adequately segmented on the same basis. The average volume fractions of low-density features for sample N1 and B1 were estimated at 6.3 (6)% and 4.5 (4)%, while those of pyrite were calculated to be 5.6 (6)% and 2.0 (3)%, respectively. The discrepancy of data quality and volume fractions were mainly due to different types of optical instruments and varying technical set-ups at the ALS, APS and SLS.

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Section: Discussionmentioning

confidence: 77%

A comparative study of X-ray tomographic microscopy on shales at different synchrotron facilities: ALS, APS and SLS

Kanitpanyacharoen

Parkinson

Carlo

et al. 2012

J Synchrotron Radiat

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“…In the field of reservoir characterization, micro-CT has become an interesting research technique, not only for the quantification of the 3D heterogeneity of reservoir properties (Bera et al, 2010;Remeysen and Swennen, 2008) but also for the sedimentary and diagenetic phases (Grochau et al, 2010;Nakashima et al, 2008). Lesher et al (2009) combined highpressure set-ups and synchrotron radiation to model the Earth's thermal state, the chemical differentiation, and the dynamic processes, since it required knowledge of properties of silicate and metallic melts at high pressure.…”

Section:  3d Grain Analysismentioning

confidence: 99%

High-resolution X-ray computed tomography in geosciences: A review of the current technology and applications

Cnudde

Boone

2013

Earth-Science Reviews

1,232

700

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Please cite this article as: Cnudde, V., Boone, M.N., "High-resolution X-ray computed tomography in geosciences: a review of the current technology and applications", Earth Science Reviews (2013Reviews ( ), doi: 10.1016Reviews ( /j.earscirev.2013 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.A C C E P T E D M A N U S C R I P T AbstractHigh-resolution X-ray Computed Tomography (HRXCT) or micro-CT (µCT) is a frequently used non-destructive 3D imaging and analysis technique for the investigation of internal structures of a large variety of objects, including geomaterials. Although the possibilities of X-ray micro-CT are becoming better appreciated in earth science research, the demands on this technique are also approaching certain physical limitations. As such, there remains a lot of research to be done in order to solve all the technical problems that occur when higher demands are put on the technique. In this paper, a review of the principle, the advantages and limitations of X-ray CT itself are presented, together with an overview of some current applications of micro-CT in geosciences. One of the main advantages of this technique is the fact that it is a non-destructive characterization technique which allows 4D monitoring of internal structural changes at resolutions down to a few hundred nanometers. Limitations of this technique are the operator dependency for the 3D image analysis from the reconstructed data, the discretations effects and possible imaging artefacts. Driven by the technological and computational progress, the technique is continuously growing as an analysis tool in geosciences and is becoming one of the standard techniques, as is shown by the large and still increasing number of publications in this research area. It is foreseen that this number will continue to rise, and micro-CT will become an indispensable technique in the field of geosciences.

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“…However, this method produces 2D pore structures that are not representative of 3D pore space. Micro-computed tomography (micro-CT) [28,29] or focused ion beam-scanning electron microscopy (FIB-SEM) [30] can be used to reconstruct the 3D pore structure for incorporation into porous media micromodels. Reproducing 3D pore space using these approaches is expensive and limited in scale [31][32][33], which led to a recent proposal to utilize microfluidic devices with patterned channels as a 2.5D structure to mimic the transport characteristics of 3D pore space [34].…”

Section: Introductionmentioning

confidence: 99%

Waterflooding of Surfactant and Polymer Solutions in a Porous Media Micromodel

Yeh

Juárez

2018

Colloids and Interfaces

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Abstract:In this study, we examine microscale waterflooding in a randomly close-packed porous medium. Three different porosities were prepared in a microfluidic platform and saturated with silicone oil. Optical video fluorescence microscopy was used to track the water front as it flowed through the porous packed bed. The degree of water saturation was compared to water containing two different types of chemical modifiers, sodium dodecyl sulfate (SDS) and polyvinylpyrrolidone (PVP), with water in the absence of a surfactant used as a control. Image analysis of our video data yielded saturation curves and calculated fractal dimension, which we used to identify how morphology changed the way in which an invading water phase moved through the porous media. An inverse analysis based on the implicit pressure explicit saturation (IMPES) simulation technique used mobility ratio as an adjustable parameter to fit our experimental saturation curves. The results from our inverse analysis combined with our image analysis show that this platform can be used to evaluate the effectiveness of surfactants or polymers as additives for enhancing the transport of water through an oil-saturated porous medium.

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Understanding the micro structure of Berea Sandstone by the simultaneous use of micro-computed tomography (micro-CT) and focused ion beam-scanning electron microscopy (FIB-SEM)

Cited by 135 publications

References 19 publications

A comparative study of X-ray tomographic microscopy on shales at different synchrotron facilities: ALS, APS and SLS

A comparative study of X-ray tomographic microscopy on shales at different synchrotron facilities: ALS, APS and SLS

High-resolution X-ray computed tomography in geosciences: A review of the current technology and applications

Waterflooding of Surfactant and Polymer Solutions in a Porous Media Micromodel

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