Experimental study on hydraulic fracturing behavior of frozen clayey silt and hydrate-bearing clayey silt
文献类型：期刊论文
| 作者 | Ma, Xiaolong1,3; Jiang, Dandan2; Sun, Youhong1; Li, Shengli1 |
| 刊名 | FUEL
 |
| 出版日期 | 2022-08-15 |
| 卷号 | 322期号:-页码:- |
| 关键词 | Clayey silt Gas hydrate Hydraulic fracturing Fracture propagation Fracture initiation Fracture morphology |
| ISSN号 | 0016-2361 |
| 英文摘要 | There are critical problems in the field trials of natural gas hydrate (NGH) production, such as low production rate, limited recovery range and short period of stabilized production. Reservoir stimulation is a potential means to promote gas recovery from NGHs since previous studies have proved that gas production of other unconventional gas reservoir can be highly enhanced by hydraulic fracturing. However, few studies pay attention to the hydraulic fracturing behavior of clayey silt NGH reservoir. In this work, the effects of sediment properties and fracturing fluid parameters on fracture initiation, propagation and morphology were experimentally investigated by hydraulic fracturing of frozen clayey silt and methane hydrate-bearing clayey silt. The results indicated that the uneven distribution of ice in sediments led to non-uniform fracture propagation phenomenon, such as singlewing fracture and fracture deflection. The fracturing fluid with injection rate of 90 mL/min was conducive to the formation of complex fractures in sediments, which indicated that that increasing injection rate could greatly increase the effect of reservoir reconstruction. When the axial pressure (8 MPa) was 2 MPa higher than the confining pressure, the fracture propagated in the direction perpendicular to the minimum principal stress, which revealed the magnitude of minimum in-situ stress difference controlling the fracture propagation direction. In addition, this work showed the fracability of clayey silt hydrates even with low saturation, which revealed the feasibility of hydraulic fracturing of marine methane hydrate reservoir. |
| 学科主题 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000807458500003 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35009]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.College of Construction Engineering, Jilin University, Changchun 130026, China 2.South Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang 524004, China 3.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
| 推荐引用方式 GB/T 7714 | Ma, Xiaolong,Jiang, Dandan,Sun, Youhong,et al. Experimental study on hydraulic fracturing behavior of frozen clayey silt and hydrate-bearing clayey silt[J]. FUEL,2022,322(-):-. |
| APA | Ma, Xiaolong,Jiang, Dandan,Sun, Youhong,&Li, Shengli.(2022).Experimental study on hydraulic fracturing behavior of frozen clayey silt and hydrate-bearing clayey silt.FUEL,322(-),-. |
| MLA | Ma, Xiaolong,et al."Experimental study on hydraulic fracturing behavior of frozen clayey silt and hydrate-bearing clayey silt".FUEL 322.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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