Systems and methods for heat management for cased wellbore compressed air storage

A system for storing energy in a form of compressed gas, comprising:

• one or more wellbore energy storage vessels for storing compressed gas, the one or more wellbore energy storage vessels each comprising:
• a wellbore provided in a subsurface;
• a casing placed within the wellbore and cemented to a surrounding geological medium, the casing defining a volumetric space for storing the compressed gas;
• and
• an induced geothermal reservoir formed in the surrounding geological medium of the one or more wellbore energy storage vessels for underground thermal energy storage, wherein a portion of thermal energy of the compressed gas stored in the one or more wellbore energy storage vessels is conductively transferred to, via the one or more wellbore energy storage vessels, the surrounding geological medium, and recoverably stored in the surrounding geological medium to create a geothermal system around the one or more wellbore energy storage vessels.

A method of storing thermal energy in a form of compressed gas, comprising:

• storing compressed gas in one or more wellbore energy storage vessels for, said energy storage vessels each comprising:
• a wellbore provided in a subsurface;
• a casing placed within the wellbore and cemented to a surrounding geological medium, the casing defining a volumetric space for storing the compressed gas;
• and
• forming a geothermal reservoir in a surrounding geological medium of the one or more wellbore energy storage vessels for underground thermal energy storage (UTES), wherein a portion of thermal energy of the compressed gas stored in the one or more wellbore energy storage vessels is conductively transferred to, via the one or more storage vessels, the surrounding geological medium, and recoverably stored in the surrounding geological medium to create a geothermal system around the one or more wellbore energy storage vessels.