Numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using CDEM
Currently, gas hydrate exploitation suffers from problems such as low efficiency of production due to the low permeability of the reservoir and thermal conduction. As an effective technique for enhancing reservoir permeability in conventional oil and gas exploration, hydraulic fracturing is expected...
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ftchinacadsimech:oai:dspace.imech.ac.cn:311007/94520 2024-05-19T07:44:02+00:00 Numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using CDEM 黄宇东 Wang, Tianju Wang, Rui Wang, Haotian 鲁晓兵 张旭辉 Lu, Xiaobing 2024-02-01 http://dspace.imech.ac.cn/handle/311007/94519 http://dspace.imech.ac.cn/handle/311007/94520 https://doi.org/10.1007/s10409-023-23273-x 英语 eng ACTA MECHANICA SINICA http://dspace.imech.ac.cn/handle/311007/94519 http://dspace.imech.ac.cn/handle/311007/94520 doi:10.1007/s10409-023-23273-x Hydraulic fracturing Continuum-discontinuum element method (CDEM) Fracture initiation and extension Gas hydrate-bearing sediments (GHBS) METHANE-HYDRATE OFFSHORE PRODUCTION PRODUCTION BEHAVIOR NANKAI TROUGH Engineering Mechanics Mechanical 二类 期刊论文 2024 ftchinacadsimech https://doi.org/10.1007/s10409-023-23273-x 2024-04-21T23:52:05Z Currently, gas hydrate exploitation suffers from problems such as low efficiency of production due to the low permeability of the reservoir and thermal conduction. As an effective technique for enhancing reservoir permeability in conventional oil and gas exploration, hydraulic fracturing is expected to be applicable for improving the permeability of natural gas hydrate reservoirs and increasing recovery efficiency. However, the research on the application of hydraulic fracturing of gas hydrate-bearing sediments (GHBS) is few. In this paper, the continuous-discontinuous element method (CDEM), which couples finite and discrete elements, is used to numerically simulate the hydraulic fracturing process in GHBS with different formation properties in a two-dimensional situation. The effect of reservoir properties and fracturing parameters on fracture generation in GHBS is investigated. The main conclusions are that among the fracturing parameters and sediment properties considered in this study, the smaller angle of internal friction angle and the higher injection flow rate are positive for fracturing. It is the most favorable condition for fracturing when the saturation and cohesion are in an appropriate range. The condition, when geostatic stress is equal in all directions, is the most favorable for fracturing but the least favorable for fracturing to extend farther. Report Methane hydrate IMECH-IR (Institute of Mechanics, Chinese Academy of Sciences) Acta Mechanica Sinica 40 2 |
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IMECH-IR (Institute of Mechanics, Chinese Academy of Sciences) |
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ftchinacadsimech |
language |
English |
topic |
Hydraulic fracturing Continuum-discontinuum element method (CDEM) Fracture initiation and extension Gas hydrate-bearing sediments (GHBS) METHANE-HYDRATE OFFSHORE PRODUCTION PRODUCTION BEHAVIOR NANKAI TROUGH Engineering Mechanics Mechanical 二类 |
spellingShingle |
Hydraulic fracturing Continuum-discontinuum element method (CDEM) Fracture initiation and extension Gas hydrate-bearing sediments (GHBS) METHANE-HYDRATE OFFSHORE PRODUCTION PRODUCTION BEHAVIOR NANKAI TROUGH Engineering Mechanics Mechanical 二类 黄宇东 Wang, Tianju Wang, Rui Wang, Haotian 鲁晓兵 张旭辉 Numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using CDEM |
topic_facet |
Hydraulic fracturing Continuum-discontinuum element method (CDEM) Fracture initiation and extension Gas hydrate-bearing sediments (GHBS) METHANE-HYDRATE OFFSHORE PRODUCTION PRODUCTION BEHAVIOR NANKAI TROUGH Engineering Mechanics Mechanical 二类 |
description |
Currently, gas hydrate exploitation suffers from problems such as low efficiency of production due to the low permeability of the reservoir and thermal conduction. As an effective technique for enhancing reservoir permeability in conventional oil and gas exploration, hydraulic fracturing is expected to be applicable for improving the permeability of natural gas hydrate reservoirs and increasing recovery efficiency. However, the research on the application of hydraulic fracturing of gas hydrate-bearing sediments (GHBS) is few. In this paper, the continuous-discontinuous element method (CDEM), which couples finite and discrete elements, is used to numerically simulate the hydraulic fracturing process in GHBS with different formation properties in a two-dimensional situation. The effect of reservoir properties and fracturing parameters on fracture generation in GHBS is investigated. The main conclusions are that among the fracturing parameters and sediment properties considered in this study, the smaller angle of internal friction angle and the higher injection flow rate are positive for fracturing. It is the most favorable condition for fracturing when the saturation and cohesion are in an appropriate range. The condition, when geostatic stress is equal in all directions, is the most favorable for fracturing but the least favorable for fracturing to extend farther. |
author2 |
Lu, Xiaobing |
format |
Report |
author |
黄宇东 Wang, Tianju Wang, Rui Wang, Haotian 鲁晓兵 张旭辉 |
author_facet |
黄宇东 Wang, Tianju Wang, Rui Wang, Haotian 鲁晓兵 张旭辉 |
author_sort |
黄宇东 |
title |
Numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using CDEM |
title_short |
Numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using CDEM |
title_full |
Numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using CDEM |
title_fullStr |
Numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using CDEM |
title_full_unstemmed |
Numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using CDEM |
title_sort |
numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using cdem |
publishDate |
2024 |
url |
http://dspace.imech.ac.cn/handle/311007/94519 http://dspace.imech.ac.cn/handle/311007/94520 https://doi.org/10.1007/s10409-023-23273-x |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
ACTA MECHANICA SINICA http://dspace.imech.ac.cn/handle/311007/94519 http://dspace.imech.ac.cn/handle/311007/94520 doi:10.1007/s10409-023-23273-x |
op_doi |
https://doi.org/10.1007/s10409-023-23273-x |
container_title |
Acta Mechanica Sinica |
container_volume |
40 |
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2 |
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1799483784336244736 |