Probing nanopore structure and confined fluid behavior in shale matrix: A review on small-angle neutron scattering studies
Abstract
Although continued growth in unconventional oil and gas production is generally projected, its long-term growth potential and sustainability have significant uncertainties. A critical problem is the low hydrocarbon recovery rates from shale and other tight formations using the horizontal well drilling and hydraulic fracturing techniques: < 10% for tight oil and ~ 20% for shale gas. Moreover, the production rate for a given well typically declines rapidly within one year. The low recoveries and declining production of shale oil and gas reservoirs are apparently related to the small porosity (a few to a few hundred nm) and low permeability (10–16–10–20 m2) of shale matrix, which make the enclosed hydrocarbon fluids difficult to access. Furthermore, to enhance the hydrocarbon recovery from shale matrix, it is essential to study its nanopore structure and confined fluid behavior.
- Authors:
-
[1]
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Earth and Environmental Sciences Div.
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Fossil Energy (FE), Oil & Natural Gas
- OSTI Identifier:
- 1573995
- Alternate Identifier(s):
- OSTI ID: 1575318
- Report Number(s):
- LA-UR-18-26067
Journal ID: ISSN 0166-5162
- Grant/Contract Number:
- 89233218CNA000001
- Resource Type:
- Accepted Manuscript
- Journal Name:
- International Journal of Coal Geology
- Additional Journal Information:
- Journal Volume: 217; Journal ID: ISSN 0166-5162
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 01 COAL, LIGNITE, AND PEAT; 58 GEOSCIENCES; Earth Sciences; Shale; Nanopore; Fluid; Small-angle neutron scattering
Citation Formats
Xu, Hongwu. Probing nanopore structure and confined fluid behavior in shale matrix: A review on small-angle neutron scattering studies. United States: N. p., 2019.
Web. doi:10.1016/j.coal.2019.103325.
Xu, Hongwu. Probing nanopore structure and confined fluid behavior in shale matrix: A review on small-angle neutron scattering studies. United States. https://doi.org/10.1016/j.coal.2019.103325
Xu, Hongwu. Thu .
"Probing nanopore structure and confined fluid behavior in shale matrix: A review on small-angle neutron scattering studies". United States. https://doi.org/10.1016/j.coal.2019.103325. https://www.osti.gov/servlets/purl/1573995.
@article{osti_1573995,
title = {Probing nanopore structure and confined fluid behavior in shale matrix: A review on small-angle neutron scattering studies},
author = {Xu, Hongwu},
abstractNote = {Although continued growth in unconventional oil and gas production is generally projected, its long-term growth potential and sustainability have significant uncertainties. A critical problem is the low hydrocarbon recovery rates from shale and other tight formations using the horizontal well drilling and hydraulic fracturing techniques: < 10% for tight oil and ~ 20% for shale gas. Moreover, the production rate for a given well typically declines rapidly within one year. The low recoveries and declining production of shale oil and gas reservoirs are apparently related to the small porosity (a few to a few hundred nm) and low permeability (10–16–10–20 m2) of shale matrix, which make the enclosed hydrocarbon fluids difficult to access. Furthermore, to enhance the hydrocarbon recovery from shale matrix, it is essential to study its nanopore structure and confined fluid behavior.},
doi = {10.1016/j.coal.2019.103325},
journal = {International Journal of Coal Geology},
number = ,
volume = 217,
place = {United States},
year = {2019},
month = {10}
}
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