| Numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using CDEM | |
Huang YD(黄宇东)1,2 ; Wang, Tianju3,4; Wang, Rui3,4; Wang, Haotian3,4; Lu XB(鲁晓兵)1,2; Zhang XH(张旭辉)1,2
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| Corresponding Author | Lu, Xiaobing(xblu@imech.ac.cn) |
| Source Publication | ACTA MECHANICA SINICA
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| 2024-02-01 | |
| Volume | 40Issue:2Pages:11 |
| ISSN | 0567-7718 |
| Abstract | 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. |
| Keyword | Hydraulic fracturing Continuum-discontinuum element method (CDEM) Fracture initiation and extension Gas hydrate-bearing sediments (GHBS) |
| DOI | 10.1007/s10409-023-23273-x |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:001160667000008 |
| WOS Keyword | METHANE-HYDRATE ; OFFSHORE PRODUCTION ; PRODUCTION BEHAVIOR ; NANKAI TROUGH |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Project | National Natural Science Foundation of China[12072347] ; Excellent Training Plan of the Institute of Mechanics, Chinese Academy of Sciences ; CNPC New Energy Key Project[2021DJ4902] |
| Funding Organization | National Natural Science Foundation of China ; Excellent Training Plan of the Institute of Mechanics, Chinese Academy of Sciences ; CNPC New Energy Key Project |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Lu, Xiaobing |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94520 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.CPOE Res Inst Engn Technol, Tianjin 300450, Peoples R China; 4.CNPC Offshore Engn Co Ltd, Beijing 100176, Peoples R China |
| Recommended Citation GB/T 7714 | Huang YD,Wang, Tianju,Wang, Rui,et al. Numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using CDEM[J]. ACTA MECHANICA SINICA,2024,40,2,:11. |
| APA | 黄宇东,Wang, Tianju,Wang, Rui,Wang, Haotian,鲁晓兵,&张旭辉.(2024).Numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using CDEM.ACTA MECHANICA SINICA,40(2),11. |
| MLA | 黄宇东,et al."Numerical simulation of hydraulic fracture characteristics in gas hydrate bearing-sediments by using CDEM".ACTA MECHANICA SINICA 40.2(2024):11. |
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