 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 13554 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8194
|
| In English (Mech. Solids): | | 5360 |
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| Xudong Zhang, Xiuxing Zhu, Jiahao Li, Bo Zhou, Peng Jia, and Haijing Wang, "Evolution Behavior Prediction of Elastic Modulus of Cement Paste at Early-Age of Oil Well Cementing Using Microscopic Finite Element Method," Mech. Solids. 60 (7), 6431-6444 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
7 |
Pages |
6431-6444 |
| DOI |
10.1134/S0025654425604781 |
| Title |
Evolution Behavior Prediction of Elastic Modulus of Cement Paste at Early-Age of Oil Well Cementing Using Microscopic Finite Element Method |
| Author(s) |
Xudong Zhang (College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580 China)
Xiuxing Zhu (College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580 China)
Jiahao Li (College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580 China)
Bo Zhou (College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580 China, zhoubo@upc.edu.cn)
Peng Jia (College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580 China)
Haijing Wang (College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580 China) |
| Abstract |
The early-age elastic modulus of cement paste is critical for cementing quality. However,
predicting the early-age elastic modulus of oil well cement paste (OWCP) under the combined influence of underground temperature and pressure is a significant challenge. Therefore, a method of
microscopic finite element analysis is developed to predict the early-age elastic modulus of OWCP
with temperature-pressure coupling conditions. Initially, the influence of temperature and pressure on
hydration is incorporated into the OWCP volume fraction equation under normal pressure and temperature (NPT) conditions using a scaling factor hydration equation, thus deriving the volume fractions under non-normal pressure and temperature (non-NPT) conditions. Subsequently, the volume
content of each phase component is derived from the modified OWCP volume fractions, and a microscopic finite element model of the representative volume elements (RVEs) is developed for homogenization. Furthermore, the distinct contributions of capillary and gel pore water to the structural
mechanical response are considered by differentiating between these pore types. Additionally, a calculation formula for the percolation threshold is derived, with the elastic modulus assumed to be zero
before the degree of hydration reached this threshold. Finally, the early-age elastic modulus of OWCP
is determined through numerical tensile tests. The results indicate that the optimal computational performance is achieved when the voxel size and RVE size are 2 and 100 μm, respectively. Two-step validation against experimental data shows that the correlation coefficients reach above 0.98. |
| Keywords |
oil well cement paste, elastic modulus, early-age, microscopic finite element method, non-normal pressure and temperature |
| Received |
04 September 2025 | Revised |
04 November 2025 | Accepted |
05 November 2025 |
| Link to Fulltext |
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