Variations on Reservoir Parameters of Oil Shale Deposits under Periodic Freeze-Thaw Cycles: Laboratory Tests

As one of the most important unconventional hydrocarbon resources, the oil shale has been extracted with a frozen wall to successfully increase the shale oil production and reduce environmental pollution, which results from the harmful liquids in the in situ conversion processing of oil shale. There...

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Autores principales:	Rui-heng Li, Zhong-guang Sun, Jiang-fu He, Zhi-wei Liao, Lei Li, Fang Qian
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi-Wiley 2021
Materias:	Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/5851ba8006024496805f3563db0a63ca
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spelling	oai:doaj.org-article:5851ba8006024496805f3563db0a63ca2021-11-29T00:56:55ZVariations on Reservoir Parameters of Oil Shale Deposits under Periodic Freeze-Thaw Cycles: Laboratory Tests1468-812310.1155/2021/2269733https://doaj.org/article/5851ba8006024496805f3563db0a63ca2021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/2269733https://doaj.org/toc/1468-8123As one of the most important unconventional hydrocarbon resources, the oil shale has been extracted with a frozen wall to successfully increase the shale oil production and reduce environmental pollution, which results from the harmful liquids in the in situ conversion processing of oil shale. Thereby, the strength and permeability of the frozen wall are extremely critical to reduce the harmful chemicals leaching into the groundwater. However, the permeability and strength of the frozen wall can be influenced by periodic freeze-thaw cycles. In order to investigate the damage and deterioration characteristics of oil shale samples after various periodic freeze-thaw cycles, the oil shale samples were periodically frozen and thawed as many as 48 times, after which the sample mass, stress-strain, freeze-thaw coefficient, uniaxial compressive strength, elastic modulus, and longitudinal wave velocity of the oil shale samples were separately measured. According to the measured results, the number of freeze-thaw cycles greatly influenced the physical and mechanical properties of oil shale samples. The uniaxial compressive strength and elastic modulus of the oil shale samples were changed with maximum variation rates of 64% and 65%, respectively. Meanwhile, the freeze-thaw coefficient of measured oil shale samples exponentially decreased with the increased number of freeze-thaw cycles, whereas the longitudinal wave velocity of tested samples ranged from 1602 m/s to 2464 m/s as a result of the new micropores inside the oil shale sample. Research results have enormous significance to the efficient and safe in situ exploitation of oil shale deposits.Rui-heng LiZhong-guang SunJiang-fu HeZhi-wei LiaoLei LiFang QianHindawi-WileyarticleGeologyQE1-996.5ENGeofluids, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Geology QE1-996.5
spellingShingle	Geology QE1-996.5 Rui-heng Li Zhong-guang Sun Jiang-fu He Zhi-wei Liao Lei Li Fang Qian Variations on Reservoir Parameters of Oil Shale Deposits under Periodic Freeze-Thaw Cycles: Laboratory Tests
description	As one of the most important unconventional hydrocarbon resources, the oil shale has been extracted with a frozen wall to successfully increase the shale oil production and reduce environmental pollution, which results from the harmful liquids in the in situ conversion processing of oil shale. Thereby, the strength and permeability of the frozen wall are extremely critical to reduce the harmful chemicals leaching into the groundwater. However, the permeability and strength of the frozen wall can be influenced by periodic freeze-thaw cycles. In order to investigate the damage and deterioration characteristics of oil shale samples after various periodic freeze-thaw cycles, the oil shale samples were periodically frozen and thawed as many as 48 times, after which the sample mass, stress-strain, freeze-thaw coefficient, uniaxial compressive strength, elastic modulus, and longitudinal wave velocity of the oil shale samples were separately measured. According to the measured results, the number of freeze-thaw cycles greatly influenced the physical and mechanical properties of oil shale samples. The uniaxial compressive strength and elastic modulus of the oil shale samples were changed with maximum variation rates of 64% and 65%, respectively. Meanwhile, the freeze-thaw coefficient of measured oil shale samples exponentially decreased with the increased number of freeze-thaw cycles, whereas the longitudinal wave velocity of tested samples ranged from 1602 m/s to 2464 m/s as a result of the new micropores inside the oil shale sample. Research results have enormous significance to the efficient and safe in situ exploitation of oil shale deposits.
format	article
author	Rui-heng Li Zhong-guang Sun Jiang-fu He Zhi-wei Liao Lei Li Fang Qian
author_facet	Rui-heng Li Zhong-guang Sun Jiang-fu He Zhi-wei Liao Lei Li Fang Qian
author_sort	Rui-heng Li
title	Variations on Reservoir Parameters of Oil Shale Deposits under Periodic Freeze-Thaw Cycles: Laboratory Tests
title_short	Variations on Reservoir Parameters of Oil Shale Deposits under Periodic Freeze-Thaw Cycles: Laboratory Tests
title_full	Variations on Reservoir Parameters of Oil Shale Deposits under Periodic Freeze-Thaw Cycles: Laboratory Tests
title_fullStr	Variations on Reservoir Parameters of Oil Shale Deposits under Periodic Freeze-Thaw Cycles: Laboratory Tests
title_full_unstemmed	Variations on Reservoir Parameters of Oil Shale Deposits under Periodic Freeze-Thaw Cycles: Laboratory Tests
title_sort	variations on reservoir parameters of oil shale deposits under periodic freeze-thaw cycles: laboratory tests
publisher	Hindawi-Wiley
publishDate	2021
url	https://doaj.org/article/5851ba8006024496805f3563db0a63ca
work_keys_str_mv	AT ruihengli variationsonreservoirparametersofoilshaledepositsunderperiodicfreezethawcycleslaboratorytests AT zhongguangsun variationsonreservoirparametersofoilshaledepositsunderperiodicfreezethawcycleslaboratorytests AT jiangfuhe variationsonreservoirparametersofoilshaledepositsunderperiodicfreezethawcycleslaboratorytests AT zhiweiliao variationsonreservoirparametersofoilshaledepositsunderperiodicfreezethawcycleslaboratorytests AT leili variationsonreservoirparametersofoilshaledepositsunderperiodicfreezethawcycleslaboratorytests AT fangqian variationsonreservoirparametersofoilshaledepositsunderperiodicfreezethawcycleslaboratorytests
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Variations on Reservoir Parameters of Oil Shale Deposits under Periodic Freeze-Thaw Cycles: Laboratory Tests

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