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Title: Spatial heterogeneity analyses of pore structure and mineral composition of Barnett Shale using X-ray scattering techniques

Abstract

The spatial heterogeneity of pore structure and mineral composition at mu m to mm scales in mm to cm-sized shale samples complicates the laboratory measurements of porosity & pore size distribution and consequently reservoir quality evaluation. Traditional fluid invasion characterization methods typically take hours to days to get data and can only test relatively small samples (usually 2.54 cm diameter core plugs and mm-sized rock chips). Furthermore, the Xray scattering techniques at the Advanced Photon Source of the Argonne National Laboratory have the capability to non-destructively determine the pore structure and mineral composition of mm x mm area in a short time of seconds and to hold several to hundreds of mm2 sized sample to conduct large area heterogeneity analysis in the short duration of hours. With the use of ultra-small angle X-ray scattering (USAXS), small-angle X-ray scattering (SAXS), and wide-angle X-ray scattering (WAXS), the porosity, surface area and pore size distribution of two Barnett Shale samples have been mapped out and the mineral compositions are determined qualitatively. Overall, the porosity and pore surface area of the Barnett Shale Sample A over a 36 cm2 area ranges from 1.70 % to 8.13 % and 8.87 m2/g to 40.2 m2/g respectively.more » The porosity and surface area of Sample B over a 24 cm2 area varies from 3.15 % to 11.7 % and 18.3 m2/g to 60.2 m2/g. In Sample A, the mineral composition shows a shift from carbonate-rich to siliciclastic-rich over a distance of several millimeters. For Sample B, the mineral compositions are mainly siliciclastic and do not show an obvious lithological change. The direct observations of high spatial heterogeneity of pore structure and mineral composition in shale illustrate the utility of integrated X-ray scattering techniques to provide valuable insights into shale studies and reservoir evaluation.« less

Authors:
 [1]; ORCiD logo [1]; ORCiD logo [1];  [2];  [2];  [1]
+ Show Author Affiliations
  1. Univ. of Texas, Arlington, TX (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Texas, Arlington, TX (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1834617
Alternate Identifier(s):
OSTI ID: 1828463; OSTI ID: 1842338
Grant/Contract Number:  
AC02-06CH11357; NE0008797
Resource Type:
Accepted Manuscript
Journal Name:
Marine and Petroleum Geology
Additional Journal Information:
Journal Volume: 134; Journal ID: ISSN 0264-8172
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; Barnett Shale; Heterogeneity; Mineral composition; Porosity; X-ray scattering

Citation Formats

Wang, Qiming, Hu, Qinhong, Ning, Xuewei, Ilavsky, Jan, Kuzmenko, Ivan, and Tom, Tristan. Spatial heterogeneity analyses of pore structure and mineral composition of Barnett Shale using X-ray scattering techniques. United States: N. p., 2021. Web. doi:10.1016/j.marpetgeo.2021.105354.
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Wang, Qiming, Hu, Qinhong, Ning, Xuewei, Ilavsky, Jan, Kuzmenko, Ivan, & Tom, Tristan. Spatial heterogeneity analyses of pore structure and mineral composition of Barnett Shale using X-ray scattering techniques. United States. https://doi.org/10.1016/j.marpetgeo.2021.105354
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Wang, Qiming, Hu, Qinhong, Ning, Xuewei, Ilavsky, Jan, Kuzmenko, Ivan, and Tom, Tristan. Tue . "Spatial heterogeneity analyses of pore structure and mineral composition of Barnett Shale using X-ray scattering techniques". United States. https://doi.org/10.1016/j.marpetgeo.2021.105354. https://www.osti.gov/servlets/purl/1834617.
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@article{osti_1834617,
title = {Spatial heterogeneity analyses of pore structure and mineral composition of Barnett Shale using X-ray scattering techniques},
author = {Wang, Qiming and Hu, Qinhong and Ning, Xuewei and Ilavsky, Jan and Kuzmenko, Ivan and Tom, Tristan},
abstractNote = {The spatial heterogeneity of pore structure and mineral composition at mu m to mm scales in mm to cm-sized shale samples complicates the laboratory measurements of porosity & pore size distribution and consequently reservoir quality evaluation. Traditional fluid invasion characterization methods typically take hours to days to get data and can only test relatively small samples (usually 2.54 cm diameter core plugs and mm-sized rock chips). Furthermore, the Xray scattering techniques at the Advanced Photon Source of the Argonne National Laboratory have the capability to non-destructively determine the pore structure and mineral composition of mm x mm area in a short time of seconds and to hold several to hundreds of mm2 sized sample to conduct large area heterogeneity analysis in the short duration of hours. With the use of ultra-small angle X-ray scattering (USAXS), small-angle X-ray scattering (SAXS), and wide-angle X-ray scattering (WAXS), the porosity, surface area and pore size distribution of two Barnett Shale samples have been mapped out and the mineral compositions are determined qualitatively. Overall, the porosity and pore surface area of the Barnett Shale Sample A over a 36 cm2 area ranges from 1.70 % to 8.13 % and 8.87 m2/g to 40.2 m2/g respectively. The porosity and surface area of Sample B over a 24 cm2 area varies from 3.15 % to 11.7 % and 18.3 m2/g to 60.2 m2/g. In Sample A, the mineral composition shows a shift from carbonate-rich to siliciclastic-rich over a distance of several millimeters. For Sample B, the mineral compositions are mainly siliciclastic and do not show an obvious lithological change. The direct observations of high spatial heterogeneity of pore structure and mineral composition in shale illustrate the utility of integrated X-ray scattering techniques to provide valuable insights into shale studies and reservoir evaluation.},
doi = {10.1016/j.marpetgeo.2021.105354},
journal = {Marine and Petroleum Geology},
number = ,
volume = 134,
place = {United States},
year = {Tue Sep 28 00:00:00 EDT 2021},
month = {Tue Sep 28 00:00:00 EDT 2021}
}
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https://doi.org/10.1016/j.marpetgeo.2021.105354
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Works referenced in this record:

Evolution of Barnett Shale organic carbon structure and nanostructure with increasing maturation
journal, June 2014

Specific surface area and pore-size distribution in clays and shales
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Heterogeneity of the mineralogy and organic content of the Tuscaloosa Marine Shale
journal, November 2019

Heterogeneity characterization from sequence stratigraphic analysis of Paleocene-Early Eocene Cambay Shale formation in Jambusar-Broach area, Cambay Basin, India
journal, June 2021

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journal, November 2016

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