A Thermoplasticity Model for Oil Shale [electronic resource]
Rock Mechanics; In Situ Processing; Oil Shale; Thermoplasticity.
Saved in:
| Online Access: |
Online Access (via OSTI) |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2016.
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| Subjects: |
MARC
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| 245 | 0 | 2 | |a A Thermoplasticity Model for Oil Shale |h [electronic resource] |
| 260 | |a Washington, D.C. : |b United States. Department of Energy. ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy, |c 2016. | ||
| 300 | |a p. 677-688 : |b digital, PDF file. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
| 337 | |a computer |b c |2 rdamedia. | ||
| 338 | |a online resource |b cr |2 rdacarrier. | ||
| 500 | |a Published through SciTech Connect. | ||
| 500 | |a 03/31/2016. | ||
| 500 | |a "llnl-conf--667671" | ||
| 500 | |a ": 947" | ||
| 500 | |a Rock Mechanics and Rock Engineering 50 3 ISSN 0723-2632 AM. | ||
| 500 | |a Presented at: Fifth International Conference on Coupled Thermo-Hydro-Mechanical-Chemical Processes in Geosystems, Salt Lake City, UT (United States), 25-27 Feb 2015. | ||
| 500 | |a Joshua A. White; Alan K. Burnham; David W. Camp. | ||
| 520 | 3 | |a Several regions of the world have abundant oil shale resources, but accessing this energy supply poses a number of challenges. One particular difficulty is the thermomechanical behavior of the material. When heated to sufficient temperatures, thermal conversion of kerogen to oil, gas, and other products takes place. This alteration of microstructure leads to a complex geomechanical response. In this work, we develop a thermoplasticity model for oil shale. The model is based on critical state plasticity, a framework often used for modeling clays and soft rocks. The model described here allows for both hardening due to mechanical deformation and softening due to thermal processes. In particular, the preconsolidation pressure-defining the onset of plastic volumetric compaction-is controlled by a state variable representing the kerogen content of the material. As kerogen is converted to other phases, the material weakens and plastic compaction begins. We calibrate and compare the proposed model to a suite of high-temperature uniaxial and triaxial experiments on core samples from a pilot in situ processing operation in the Green River Formation. In conclusion, we also describe avenues for future work to improve understanding and prediction of the geomechanical behavior of oil shale operations. | |
| 520 | 0 | |a Rock Mechanics; In Situ Processing; Oil Shale; Thermoplasticity. | |
| 536 | |b AC52-07NA27344. | ||
| 650 | 7 | |a Oil Shales And Tar Sands. |2 edbsc. | |
| 650 | 7 | |a Geosciences. |2 edbsc. | |
| 710 | 2 | |a Lawrence Berkeley National Laboratory. |4 res. | |
| 710 | 1 | |a United States. |b Department of Energy. |4 spn. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
| 856 | 4 | 0 | |u http://www.osti.gov/scitech/biblio/1378546 |z Online Access (via OSTI) |
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