Numerical Simulation Study on Casing Strength of Underground Gas Storage and an Optimization Method of Casing
- DOI
- 10.2991/mmsta-19.2019.13How to use a DOI?
- Keywords
- gas storage; injection-production well; casing; alternating load; optimization; finite element; numerical simulation
- Abstract
The casing of underground gas storage is under complex stress conditions because of the injection-production alternating loads and the influence coming from the intensive injection and withdrawal of injection-production wells. It is crucial for the long-term safety of injection-production wells of underground gas storage to conduct casing optimization and to decrease casing stress. A three-dimensional parametric finite element model of injection-production well of underground gas storage was built by employing the finite element software ABAQUS and the PYTHON scripting language. The whole process of model building was recorded by the PYTHON scripting language. It is very easy to automatically build a different model by editing and running the PYTHON script file. The model includes casing, cement sheath and formation. The spiral perforation completion was conducted in the model. The injection-production process was simulated by adopting the data coming from a field injection-production well of underground gas storage. The temporal and spatial distribution of von Mises stresses of the model was obtained from the simulation results. In order to check if the casing stress can meet relevant safety requirements, the von Mises stress of the casing was checked by employing the fourth stress strength criterion. A study on the influence of the model parameters was carried out by changing the parameters one by one, as a result of which the optimal structure and dimensions of the casing were obtained.
- Copyright
- © 2019, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Guangming Zhang AU - Juan Jin AU - Wei Chen AU - Xiaowen Zhang AU - Jiandong Liu AU - Weidong Jiang AU - Luhe Shen PY - 2019/12 DA - 2019/12 TI - Numerical Simulation Study on Casing Strength of Underground Gas Storage and an Optimization Method of Casing BT - Proceedings of the 2019 2nd International Conference on Mathematics, Modeling and Simulation Technologies and Applications (MMSTA 2019) PB - Atlantis Press SP - 56 EP - 60 SN - 2352-538X UR - https://doi.org/10.2991/mmsta-19.2019.13 DO - 10.2991/mmsta-19.2019.13 ID - Zhang2019/12 ER -