Computed microtomography of reservoir core samples

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X-ray computed tomography (CT) is often utilized to evaluate and characterize structural characteristics within reservoir core material systems. Generally, medical CT scanners have been employed because of their availability and ease of use. Of interest lately has been the acquisition of three-dimensional, high resolution descriptions of rock and pore structures for characterization of the porous media and for modeling of single and multiphase transport processes. The spatial resolution of current medical CT scanners is too coarse for pore level imaging of most core samples. Recently developed high resolution computed microtomography (CMT) using synchrotron X-ray sources is analogous to conventional medical ... continued below

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10 p.

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Coles, M.E.; Muegge, E.L.; Spanne, P. & Jones, K.W. March 1, 1995.

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X-ray computed tomography (CT) is often utilized to evaluate and characterize structural characteristics within reservoir core material systems. Generally, medical CT scanners have been employed because of their availability and ease of use. Of interest lately has been the acquisition of three-dimensional, high resolution descriptions of rock and pore structures for characterization of the porous media and for modeling of single and multiphase transport processes. The spatial resolution of current medical CT scanners is too coarse for pore level imaging of most core samples. Recently developed high resolution computed microtomography (CMT) using synchrotron X-ray sources is analogous to conventional medical CT scanning and provides the ability to obtain three-dimensional images of specimens with a spatial resolution on the order of micrometers. Application of this technique to the study of core samples provides two- and three-dimensional high resolution description of pore structure and mineral distributions. Pore space and interconnectivity is accurately characterized and visualized. Computed microtomography data can serve as input into pore-level simulation techniques. A generalized explanation of the technique is provided, with comparison to conventional CT scanning techniques and results. Computed microtomographic results of several sandstone samples are presented and discussed. Bulk porosity values and mineralogical identification were obtained from the microtomograms and compared with gas porosity and scanning electron microscope results on tandem samples.

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10 p.

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OSTI as DE95008384

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  • 1994 international symposium of the Society of Core Analysts, Stavanger (Norway), 12-14 Sep 1994

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  • Other: DE95008384
  • Report No.: BNL--60656
  • Report No.: CONF-9409305--1
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 32531
  • Archival Resource Key: ark:/67531/metadc685808

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  • March 1, 1995

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  • July 25, 2015, 2:20 a.m.

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  • Nov. 30, 2015, 6:41 p.m.

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Coles, M.E.; Muegge, E.L.; Spanne, P. & Jones, K.W. Computed microtomography of reservoir core samples, article, March 1, 1995; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc685808/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.