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Comment on “Formation of nanoporous pyrobitumen residues during maturation of the Barnett Shale (Fort Worth Basin)” by Bernard et al. (2012)

Authors
Journal
International Journal of Coal Geology
0166-5162
Publisher
Elsevier
Publication Date
Volume
127
Identifiers
DOI: 10.1016/j.coal.2013.11.012
Keywords
  • Pore
  • Mudrock
  • Organic Matter
  • Maturity
  • Sem

Abstract

Abstract In their 2012 paper discussing the character of pores and organic matter in the Mississippian Barnett Shale, Bernard et al. (2012) identified only nonporous kerogen and nonporous solid bitumen in oil-window-maturity samples, but nanoporous pyrobitumen in gas-window-maturity samples. Our examination of samples from the same wells shows that pores are also present in organic matter from oil-window-maturity samples. We also argue that some of the pores we identified in gas-window-maturity samples are developed in organic matter that is unlikely to be pyrobitumen.

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