Experimental Study on Gas Exploitation Performance Evolution of Fractured Hydrate-Bearing Sediments Under Shear
- DOI
- 10.2991/978-94-6463-708-3_6How to use a DOI?
- Keywords
- Natural gas hydrate; Exploitation performance; Permeability; Triaxial shear process
- Abstract
Gas permeability of gas hydrate sediment is decisive factor that determines the rate of gas production during hydrate exploitation process. In site exploration indicates that hydrates are abundantly present in fractures of the reservoir, and the fractures provide convenient conditions for migration of fluids during the hydrate exploitation process. In this study, gas permeability evolution during triaxial shear process of fractured hydrate-bearing sediments was measured. The experimental results show that gas permeability damage of fractured hydrate-bearing sediment is affected by effective confining pressure. And as axial strain increases during shearing, gas permeability of fractured hydrate-bearing sediment generally presents a pattern of first decreasing, then increasing, and then decreasing again due to changes in fracture structure. And with increase of hydrate saturation, initial gas permeability, the peak permeability at rise and the minimum permeability at decline all increase. The conclusion of this study provides a data base for prediction of hydrate recovery efficiency of fractured hydrate sediments.
- Copyright
- © 2025 The Author(s)
- Open Access
- Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.
Cite this article
TY - CONF AU - Shi Shen AU - Rui Qin AU - Haihong Chen AU - Ting Huang AU - Yang Ge AU - Xin Lv AU - Huiyong Liang PY - 2025 DA - 2025/05/09 TI - Experimental Study on Gas Exploitation Performance Evolution of Fractured Hydrate-Bearing Sediments Under Shear BT - Proceedings of the 2024 10th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2024) PB - Atlantis Press SP - 39 EP - 47 SN - 2589-4943 UR - https://doi.org/10.2991/978-94-6463-708-3_6 DO - 10.2991/978-94-6463-708-3_6 ID - Shen2025 ER -