中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 武汉岩土力学研究所
  3. 中科院武汉岩土力学所
Evolution of physical and mechanical properties of cementing materials during underground energy exploitation and storage

文献类型：期刊论文

作者Xu, Feng1,2; Xu, Zhipeng2; Tang, Shengchuan1; Ren, Qingyang2; Guo, Yintong3; Wang, Lei3; Hou, Zhenkun4; Liu, Zhongshuai1
刊名JOURNAL OF ENERGY STORAGE
出版日期2022
卷号45页码:8
关键词Cement stone High temperature Mechanical properties Thermal damage Energy exploitation and storage
DOI10.1016/j.est.2021.103775
英文摘要The sealing problem of cement sheath often appears in gas wells for the increasing depth of underground energy exploitation and storage, especially when horizontal multi-stage fracturing technology is used in the shale gas industry. To investigate the effect of high temperature and high pressure (HTHP) on the evolution of the physical and mechanical properties of cement stone, conventional triaxial compression tests of cement stone at 5 different temperatures from 25 degrees C to 135 degrees C, with confining pressure varying from 5 to 45 MPa were tested. It was found that with increasing confining pressure and temperature, the mechanical properties of cement stone change from strain softening to ideal plasticity, finally, become strain hardening. The specimens show irregular longitudinal splitting under low confining pressure and room temperature. When the confining stress rises to 30 MPa and the temperature rises to 95 degrees C, expansive destruction occurs in the radial direction. In addition to the above, the failure mode shows single a shear plane or multiple splitting planes. Peak strength of cement stone is proportional to confining pressure and is inversely related to temperature. There is a negative correlation between elastic modulus and temperature. The effect of temperature on cohesion and friction angle is complex, and with the increasing temperature, the cohesion continuously decreases. The friction angle increases until the temperature reaches 60 degrees C, but then it starts to drop dramatically. The results of the physical and mechanical properties of cement stone guide the cementing design and construction of horizontal wells and the safety evaluation during underground energy exploitation and storage.
资助项目National Key Research and Development Program of China[2018YFC1504903] ; Chongqing Postdoctoral Science Foundation[cstc2020jcyj-bshX0021] ; China Postdoctoral Science Foundation[2019M662918]
WOS研究方向Energy & Fuels
语种英语
WOS记录号WOS:000735329300002
出版者ELSEVIER
源URL[http://119.78.100.198/handle/2S6PX9GI/30794]  
专题中科院武汉岩土力学所
通讯作者Ren, Qingyang
作者单位1.China Merchants Chongqing Commun Res & Design Ins, Chongqing, Peoples R China
2.Chongqing Jiaotong Univ, Sch Civil Engn, Chongqing, Peoples R China
3.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan, Peoples R China
4.Guangdong Univ Technol, Guangzhou, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Feng,Xu, Zhipeng,Tang, Shengchuan,et al. Evolution of physical and mechanical properties of cementing materials during underground energy exploitation and storage[J]. JOURNAL OF ENERGY STORAGE,2022,45:8.
APA Xu, Feng.,Xu, Zhipeng.,Tang, Shengchuan.,Ren, Qingyang.,Guo, Yintong.,...&Liu, Zhongshuai.(2022).Evolution of physical and mechanical properties of cementing materials during underground energy exploitation and storage.JOURNAL OF ENERGY STORAGE,45,8.
MLA Xu, Feng,et al."Evolution of physical and mechanical properties of cementing materials during underground energy exploitation and storage".JOURNAL OF ENERGY STORAGE 45(2022):8.

入库方式： OAI收割

来源：武汉岩土力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。