Mechanical Properties of Methane Hydrate Interbedded with Clayey Sediments

Yanghui Li; Qi Wu; Peng Wu; Weiguo Liu

doi:doi:10.11648/j.jenr.20180701.14

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Mechanical Properties of Methane Hydrate Interbedded with Clayey Sediments

Yanghui Li, Qi Wu, Peng Wu, Weiguo Liu

Published in Journal of Energy and Natural Resources (Volume 7, Issue 1)

Received: 26 April 2018 Published: 27 April 2018

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Abstract

Methane hydrate was found interbedded with clayey sediments in permafrost regions, and it is important to study the mechanical properties of the hydrate-bearing layers to assess the stability during hydrate exploitation. In this paper, a series of triaxial experiments was conducted on hydrate-bearing sediments which were prepared by compacting hydrate layer (A), kaolin clay layer (B) and the mixture of hydrate and kaolin clay layer (C) in different orders (ABC, ACB, CAB) and with different tilted angles (0°, 10°, 25°) in a specially designed mold device. The volume of methane hydrate was 40% of the whole volume of the sample. The triaxial experiments were conducted under the confining pressure of 5MPa, temperature of -10°C and strain rate of 1%/min. The results indicated that the maximum deviator stress of the sediments (ABC) increased with the increasing of the tilted angle of layers, however, there was an opposite trend with the sediments (CAB). And the maximum deviator stress of the sediments (ACB) increased first and then decreased. The failure strength achieved maximum when the hydrate layer was in the center of the sediments.

Published in	Journal of Energy and Natural Resources (Volume 7, Issue 1)
DOI	10.11648/j.jenr.20180701.14
Page(s)	24-31
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

Methane Hydrate, Mechanical Properties, Tilted Angles, Stratified

References

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[4]	Sloan E D. “Fundamental principles and applications of natural gas hydrates.” Nature, 2003, 426 (6964): 353-363.
[5]	Li B, Sun Y, Guo W, et al. “The mechanism and verification analysis of permafrost-associated gas hydrate formation in the Qilian Mountain, Northwest China.” Marine and Petroleum Geology, 2017, 86: 787-797.
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[7]	Vanoudheusden E, Sultan N, Cochonat P. “Mechanical behaviour of unsaturated marine sediments: experimental and theoretical approache.” Marine geology, 2004, 213 (1-4): 323-342.
[8]	Dickens G R, O'Neil J R, Rea D K, et al. “Dissociation of oceanic methane hydrate as a cause of the carbon isotope excursion at the end of the Paleocene.” Paleoceanography, 1995, 10 (6): 965-971.
[9]	Brown H E, Holbrook W S, Hornbach M J, et al. “Slide structure and role of gas hydrate at the northern boundary of the Storegga Slide, offshore Norway.” Marine geology, 2006, 229 (3): 179-186.
[10]	Waite W F, Winters W J, Mason D H. “Methane hydrate formation in partially water-saturated Ottawa sand.” American Mineralogist, 2004, 89 (8-9): 1202-1207.
[11]	Hyodo M, Nakata Y, Yoshimoto N. “Basic research on the mechanical behavior of methane hydrate-sediments mixture.”Soils and foundations, 2005; 45 (1): 75-85.
[12]	Miyazaki K, Masui A, Aoki K, et al. “Strain-rate dependence of triaxial compressive strength of artificial methane-hydrate-bearing sediment.” International Journal of Offshore and Polar Engineering, 2010, 20 (04).
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[16]	Li Y, Song Y, Yu F, et al. “Experimental study on mechanical properties of gas hydrate-bearing sediments using kaolin clay.” China Ocean Engineering, 2011, 25 (1): 113-122.
[17]	Liu W, Luo T, Li Y, et al. “Experimental study on the mechanical properties of sediments containing CH4 and CO2 hydrate mixtures.” Journal of Natural Gas Science and Engineering, 2016, 32: 20-27.

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APA Style

Yanghui Li, Qi Wu, Peng Wu, Weiguo Liu. (2018). Mechanical Properties of Methane Hydrate Interbedded with Clayey Sediments. Journal of Energy and Natural Resources, 7(1), 24-31. https://doi.org/10.11648/j.jenr.20180701.14

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ACS Style

Yanghui Li; Qi Wu; Peng Wu; Weiguo Liu. Mechanical Properties of Methane Hydrate Interbedded with Clayey Sediments. J. Energy Nat. Resour. 2018, 7(1), 24-31. doi: 10.11648/j.jenr.20180701.14

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AMA Style

Yanghui Li, Qi Wu, Peng Wu, Weiguo Liu. Mechanical Properties of Methane Hydrate Interbedded with Clayey Sediments. J Energy Nat Resour. 2018;7(1):24-31. doi: 10.11648/j.jenr.20180701.14

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@article{10.11648/j.jenr.20180701.14,
  author = {Yanghui Li and Qi Wu and Peng Wu and Weiguo Liu},
  title = {Mechanical Properties of Methane Hydrate Interbedded with Clayey Sediments},
  journal = {Journal of Energy and Natural Resources},
  volume = {7},
  number = {1},
  pages = {24-31},
  doi = {10.11648/j.jenr.20180701.14},
  url = {https://doi.org/10.11648/j.jenr.20180701.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jenr.20180701.14},
  abstract = {Methane hydrate was found interbedded with clayey sediments in permafrost regions, and it is important to study the mechanical properties of the hydrate-bearing layers to assess the stability during hydrate exploitation. In this paper, a series of triaxial experiments was conducted on hydrate-bearing sediments which were prepared by compacting hydrate layer (A), kaolin clay layer (B) and the mixture of hydrate and kaolin clay layer (C) in different orders (ABC, ACB, CAB) and with different tilted angles (0°, 10°, 25°) in a specially designed mold device. The volume of methane hydrate was 40% of the whole volume of the sample. The triaxial experiments were conducted under the confining pressure of 5MPa, temperature of -10°C and strain rate of 1%/min. The results indicated that the maximum deviator stress of the sediments (ABC) increased with the increasing of the tilted angle of layers, however, there was an opposite trend with the sediments (CAB). And the maximum deviator stress of the sediments (ACB) increased first and then decreased. The failure strength achieved maximum when the hydrate layer was in the center of the sediments.},
 year = {2018}
}

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TY  - JOUR
T1  - Mechanical Properties of Methane Hydrate Interbedded with Clayey Sediments
AU  - Yanghui Li
AU  - Qi Wu
AU  - Peng Wu
AU  - Weiguo Liu
Y1  - 2018/04/27
PY  - 2018
N1  - https://doi.org/10.11648/j.jenr.20180701.14
DO  - 10.11648/j.jenr.20180701.14
T2  - Journal of Energy and Natural Resources
JF  - Journal of Energy and Natural Resources
JO  - Journal of Energy and Natural Resources
SP  - 24
EP  - 31
PB  - Science Publishing Group
SN  - 2330-7404
UR  - https://doi.org/10.11648/j.jenr.20180701.14
AB  - Methane hydrate was found interbedded with clayey sediments in permafrost regions, and it is important to study the mechanical properties of the hydrate-bearing layers to assess the stability during hydrate exploitation. In this paper, a series of triaxial experiments was conducted on hydrate-bearing sediments which were prepared by compacting hydrate layer (A), kaolin clay layer (B) and the mixture of hydrate and kaolin clay layer (C) in different orders (ABC, ACB, CAB) and with different tilted angles (0°, 10°, 25°) in a specially designed mold device. The volume of methane hydrate was 40% of the whole volume of the sample. The triaxial experiments were conducted under the confining pressure of 5MPa, temperature of -10°C and strain rate of 1%/min. The results indicated that the maximum deviator stress of the sediments (ABC) increased with the increasing of the tilted angle of layers, however, there was an opposite trend with the sediments (CAB). And the maximum deviator stress of the sediments (ACB) increased first and then decreased. The failure strength achieved maximum when the hydrate layer was in the center of the sediments.
VL  - 7
IS  - 1
ER  -

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Author Information

Yanghui Li

Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian, P. R. China
Qi Wu

Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian, P. R. China
Peng Wu

Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian, P. R. China
Weiguo Liu

Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian, P. R. China

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Plain Text BibTeX RIS

APA Style

Yanghui Li, Qi Wu, Peng Wu, Weiguo Liu. (2018). Mechanical Properties of Methane Hydrate Interbedded with Clayey Sediments. Journal of Energy and Natural Resources, 7(1), 24-31. https://doi.org/10.11648/j.jenr.20180701.14

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ACS Style

Yanghui Li; Qi Wu; Peng Wu; Weiguo Liu. Mechanical Properties of Methane Hydrate Interbedded with Clayey Sediments. J. Energy Nat. Resour. 2018, 7(1), 24-31. doi: 10.11648/j.jenr.20180701.14

Copy | Download

AMA Style

Yanghui Li, Qi Wu, Peng Wu, Weiguo Liu. Mechanical Properties of Methane Hydrate Interbedded with Clayey Sediments. J Energy Nat Resour. 2018;7(1):24-31. doi: 10.11648/j.jenr.20180701.14

Copy | Download

@article{10.11648/j.jenr.20180701.14,
  author = {Yanghui Li and Qi Wu and Peng Wu and Weiguo Liu},
  title = {Mechanical Properties of Methane Hydrate Interbedded with Clayey Sediments},
  journal = {Journal of Energy and Natural Resources},
  volume = {7},
  number = {1},
  pages = {24-31},
  doi = {10.11648/j.jenr.20180701.14},
  url = {https://doi.org/10.11648/j.jenr.20180701.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jenr.20180701.14},
  abstract = {Methane hydrate was found interbedded with clayey sediments in permafrost regions, and it is important to study the mechanical properties of the hydrate-bearing layers to assess the stability during hydrate exploitation. In this paper, a series of triaxial experiments was conducted on hydrate-bearing sediments which were prepared by compacting hydrate layer (A), kaolin clay layer (B) and the mixture of hydrate and kaolin clay layer (C) in different orders (ABC, ACB, CAB) and with different tilted angles (0°, 10°, 25°) in a specially designed mold device. The volume of methane hydrate was 40% of the whole volume of the sample. The triaxial experiments were conducted under the confining pressure of 5MPa, temperature of -10°C and strain rate of 1%/min. The results indicated that the maximum deviator stress of the sediments (ABC) increased with the increasing of the tilted angle of layers, however, there was an opposite trend with the sediments (CAB). And the maximum deviator stress of the sediments (ACB) increased first and then decreased. The failure strength achieved maximum when the hydrate layer was in the center of the sediments.},
 year = {2018}
}

Copy | Download

TY  - JOUR
T1  - Mechanical Properties of Methane Hydrate Interbedded with Clayey Sediments
AU  - Yanghui Li
AU  - Qi Wu
AU  - Peng Wu
AU  - Weiguo Liu
Y1  - 2018/04/27
PY  - 2018
N1  - https://doi.org/10.11648/j.jenr.20180701.14
DO  - 10.11648/j.jenr.20180701.14
T2  - Journal of Energy and Natural Resources
JF  - Journal of Energy and Natural Resources
JO  - Journal of Energy and Natural Resources
SP  - 24
EP  - 31
PB  - Science Publishing Group
SN  - 2330-7404
UR  - https://doi.org/10.11648/j.jenr.20180701.14
AB  - Methane hydrate was found interbedded with clayey sediments in permafrost regions, and it is important to study the mechanical properties of the hydrate-bearing layers to assess the stability during hydrate exploitation. In this paper, a series of triaxial experiments was conducted on hydrate-bearing sediments which were prepared by compacting hydrate layer (A), kaolin clay layer (B) and the mixture of hydrate and kaolin clay layer (C) in different orders (ABC, ACB, CAB) and with different tilted angles (0°, 10°, 25°) in a specially designed mold device. The volume of methane hydrate was 40% of the whole volume of the sample. The triaxial experiments were conducted under the confining pressure of 5MPa, temperature of -10°C and strain rate of 1%/min. The results indicated that the maximum deviator stress of the sediments (ABC) increased with the increasing of the tilted angle of layers, however, there was an opposite trend with the sediments (CAB). And the maximum deviator stress of the sediments (ACB) increased first and then decreased. The failure strength achieved maximum when the hydrate layer was in the center of the sediments.
VL  - 7
IS  - 1
ER  -

Copy | Download