TY  - JOUR
AU  - Luo, Ang
AU  - He, Jia
AU  - Li, Jing
AU  - Gong, Xin
AU  - Cao, Wen
AU  - Wu, Yijia
PY  - 2025
DA  - 2025/09/24
TI  - Experimental Study on the Influence of Water-rock Interaction on the Mechanical Characteristics and Creep Behavior of Shale
JO  - Journal of Geo-Energy and Environment
T2  - Journal of Geo-Energy and Environment
JF  - Journal of Geo-Energy and Environment
VL  - 1
IS  - 2
SP  - 61
EP  - 69
DO  - 10.62762/JGEE.2025.256463
UR  - https://www.icck.org/article/abs/JGEE.2025.256463
KW  - shale
KW  - water-rock interaction
KW  - rock mechanics parameters
KW  - shale creep
KW  - hydration swelling
AB  - In shale reservoirs, fracturing fluid can be easily absorbed into the pore space due to the strong capillary force of shale. These invading fluids can impact the rock mechanical properties and creep behavior characteristics of shale under water-rock interaction. This paper discussed the influence of water-rock interaction on the mechanical parameters and creep behavior of shale rocks based on shale hydration swelling experiments, acoustic-triaxial compression tests, and shale creep experiments. The experiments show that: There are two stages of shale hydration swelling: rapid swelling stage and stable swelling stage. Temperature mainly impacts the hydration swelling rate, while the type of liquid mainly impacts the hydration swelling amplitude. Water-rock interaction can damage the shale mechanical properties and cause the decrease of the Young's modulus, Poisson's ratio, and compressive strength. The degradation rate of Young's modulus and compressive strength significantly decreases after 10 days of water rock interaction. Water rock interaction can also alter the creep characteristics of shale, increasing the amplitude and rate of shale creep. The lower the liquid mineralization, the stronger the shale creep. The higher the temperature, the stronger the creep of shale.
SN  - 3069-3268
PB  - Institute of Central Computation and Knowledge
LA  - English
ER  - 

@article{Luo2025Experiment,
  author = {Ang Luo and Jia He and Jing Li and Xin Gong and Wen Cao and Yijia Wu},
  title = {Experimental Study on the Influence of Water-rock Interaction on the Mechanical Characteristics and Creep Behavior of Shale},
  journal = {Journal of Geo-Energy and Environment},
  year = {2025},
  volume = {1},
  number = {2},
  pages = {61-69},
  doi = {10.62762/JGEE.2025.256463},
  url = {https://www.icck.org/article/abs/JGEE.2025.256463},
  abstract = {In shale reservoirs, fracturing fluid can be easily absorbed into the pore space due to the strong capillary force of shale. These invading fluids can impact the rock mechanical properties and creep behavior characteristics of shale under water-rock interaction. This paper discussed the influence of water-rock interaction on the mechanical parameters and creep behavior of shale rocks based on shale hydration swelling experiments, acoustic-triaxial compression tests, and shale creep experiments. The experiments show that: There are two stages of shale hydration swelling: rapid swelling stage and stable swelling stage. Temperature mainly impacts the hydration swelling rate, while the type of liquid mainly impacts the hydration swelling amplitude. Water-rock interaction can damage the shale mechanical properties and cause the decrease of the Young's modulus, Poisson's ratio, and compressive strength. The degradation rate of Young's modulus and compressive strength significantly decreases after 10 days of water rock interaction. Water rock interaction can also alter the creep characteristics of shale, increasing the amplitude and rate of shale creep. The lower the liquid mineralization, the stronger the shale creep. The higher the temperature, the stronger the creep of shale.},
  keywords = {shale, water-rock interaction, rock mechanics parameters, shale creep, hydration swelling},
  issn = {3069-3268},
  publisher = {Institute of Central Computation and Knowledge}
}