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Title: A forward analysis on the applicability of tracer breakthrough profiles in revealing the pore structure of tight gas sandstone and carbonate rocks

Abstract

Here, we explore tracer breakthrough profiles (TBP) as a macroscopic property to infer the pore-space topology of tight gas sandstone and carbonate rocks at the core scale. The following features were modeled via three-dimensional multiscale networks: microporosity within dissolved grains and pore-filling clay, cementation in the absence and presence of microporosity (each classified into uniform, pore-preferred, and throat-preferred modes), layering, vug, and microcrack inclusion. A priori knowledge of the extent and location of each process was assumed to be known. With the exception of an equal importance of macropores and pore-filling micropores, TBPs show little sensitivity to the fraction of micropores present. In general, significant sensitivity of the TBPs was observed for uniform and throat-preferred cementation. Layering parallel to the fluid flow direction had a considerable impact on TBPs whereas layering perpendicular to flow did not. Microcrack orientations seemed of minor importance in affecting TBPs.

Authors:
 [1];  [1];  [1];  [1]
  1. Univ. of Texas, Austin, TX (United States). Dept. of Petroleum and Geosystems Engineering
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC), Washington D.C. (United States). Center for Frontiers of Subsurface Energy Security (CFSES)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1370718
Grant/Contract Number:  
SC0001114
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Water Resources Research
Additional Journal Information:
Journal Volume: 51; Journal Issue: 6; Related Information: CFSES partners with University of Texas at Austin (lead); Sandia National Laboratory; Journal ID: ISSN 0043-1397
Publisher:
American Geophysical Union (AGU)
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; nuclear (including radiation effects); carbon sequestration; unconventional resources; carbonates; multiscale pore network models; tracer breakthrough profiles

Citation Formats

Mehmani, Ayaz, Mehmani, Yashar, Prodanović, Maša, and Balhoff, Matthew. A forward analysis on the applicability of tracer breakthrough profiles in revealing the pore structure of tight gas sandstone and carbonate rocks. United States: N. p., 2015. Web. doi:10.1002/2015WR016948.
Mehmani, Ayaz, Mehmani, Yashar, Prodanović, Maša, & Balhoff, Matthew. A forward analysis on the applicability of tracer breakthrough profiles in revealing the pore structure of tight gas sandstone and carbonate rocks. United States. https://doi.org/10.1002/2015WR016948
Mehmani, Ayaz, Mehmani, Yashar, Prodanović, Maša, and Balhoff, Matthew. 2015. "A forward analysis on the applicability of tracer breakthrough profiles in revealing the pore structure of tight gas sandstone and carbonate rocks". United States. https://doi.org/10.1002/2015WR016948. https://www.osti.gov/servlets/purl/1370718.
@article{osti_1370718,
title = {A forward analysis on the applicability of tracer breakthrough profiles in revealing the pore structure of tight gas sandstone and carbonate rocks},
author = {Mehmani, Ayaz and Mehmani, Yashar and Prodanović, Maša and Balhoff, Matthew},
abstractNote = {Here, we explore tracer breakthrough profiles (TBP) as a macroscopic property to infer the pore-space topology of tight gas sandstone and carbonate rocks at the core scale. The following features were modeled via three-dimensional multiscale networks: microporosity within dissolved grains and pore-filling clay, cementation in the absence and presence of microporosity (each classified into uniform, pore-preferred, and throat-preferred modes), layering, vug, and microcrack inclusion. A priori knowledge of the extent and location of each process was assumed to be known. With the exception of an equal importance of macropores and pore-filling micropores, TBPs show little sensitivity to the fraction of micropores present. In general, significant sensitivity of the TBPs was observed for uniform and throat-preferred cementation. Layering parallel to the fluid flow direction had a considerable impact on TBPs whereas layering perpendicular to flow did not. Microcrack orientations seemed of minor importance in affecting TBPs.},
doi = {10.1002/2015WR016948},
url = {https://www.osti.gov/biblio/1370718}, journal = {Water Resources Research},
issn = {0043-1397},
number = 6,
volume = 51,
place = {United States},
year = {Sat May 30 00:00:00 EDT 2015},
month = {Sat May 30 00:00:00 EDT 2015}
}

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Cited by: 21 works
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