Version 1
: Received: 29 August 2024 / Approved: 30 August 2024 / Online: 2 September 2024 (10:54:44 CEST)
How to cite:
Liu, Z.; Liu, Y.; Wang, Z. Comparative Study of Temperature and Pressure Variation Patterns in Hydrogen and Natural Gas Storage in Salt Cavern. Preprints2024, 2024082263. https://doi.org/10.20944/preprints202408.2263.v1
Liu, Z.; Liu, Y.; Wang, Z. Comparative Study of Temperature and Pressure Variation Patterns in Hydrogen and Natural Gas Storage in Salt Cavern. Preprints 2024, 2024082263. https://doi.org/10.20944/preprints202408.2263.v1
Liu, Z.; Liu, Y.; Wang, Z. Comparative Study of Temperature and Pressure Variation Patterns in Hydrogen and Natural Gas Storage in Salt Cavern. Preprints2024, 2024082263. https://doi.org/10.20944/preprints202408.2263.v1
APA Style
Liu, Z., Liu, Y., & Wang, Z. (2024). Comparative Study of Temperature and Pressure Variation Patterns in Hydrogen and Natural Gas Storage in Salt Cavern. Preprints. https://doi.org/10.20944/preprints202408.2263.v1
Chicago/Turabian Style
Liu, Z., Yuxuan Liu and Zonghao Wang. 2024 "Comparative Study of Temperature and Pressure Variation Patterns in Hydrogen and Natural Gas Storage in Salt Cavern" Preprints. https://doi.org/10.20944/preprints202408.2263.v1
Abstract
Clarifying the distribution of temperature and pressure in the wellbore and cavern during hydrogen injection and extraction is crucial for quantitatively assessing cavern stability and wellbore integrity. This paper establishes an integrated flow and heat transfer model for the cavern and wellbore during hydrogen injection and production, analyzing the variations in temperature and pressure in both the wellbore and the cavern. The specific conclusions are as follows. (1) The temperature and pressure parameters of hydrogen and natural gas within the chamber and wellbore were compared. Under identical injection and production conditions, the temperature of hydrogen in the chamber was 10°C higher than that of natural gas, and 16°C higher in the wellbore. The pressure of hydrogen in the chamber was 2.9 MPa greater than that of natural gas, and 2.6 MPa higher in the wellbore. (2) A comparative analysis was conducted on the impact of surrounding rock’s horizontal and numerical distance on temperature during hydrogen and natural gas injection processes. As the distance from the cavity increases, from 5 to 15 meters, the temperature fluctuation in the surrounding rock diminishes progressively, with the temperature effect in the hydrogen storage chamber extending at least 10 meters. (3) The influence of rock thermal conductivity parameters on temperature during the processes of hydrogen injection and natural gas extraction is compared. The better the thermal conductivity, the deeper the thermal effects penetrate the rock layers, with the specific heat capacity having the most significant impact.
Keywords
Underground hydrogen storage; Salt cavern; Flow and heat transfer model; Hydrogen and natural gas; Diversity
Subject
Engineering, Energy and Fuel Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
