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Description
Gas storage facilities play a significant role in the implementation of the National Hydrogen Strategy. The storage facilities (porous and cavern storage) must be tested for their suitability regarding hydrogen compatibility and subsequently monitored. Since no list of criteria for assessing the suitability of potential storage facilities currently exists, this project is intended to serve as a guide and be relevant for regulatory authorities responsible for granting permits, as well as being of critical interest to future operators regarding the necessary tests and measurements.
The project focuses on measurements and procedures designed to assess the integrity of the gas storage facility. The technical integrity of a storage facility includes the suitability of the wellbore, the completion, and the cement. Geological integrity primarily involves the suitability of the overburden for hydrogen storage. As part of the project, diffusion measurements and gas mixing experiments will be conducted that are forward-looking for the suitability and safety of the storage facilities in question. Among other things, the molecular diffusion of hydrogen and methane in storage rock samples will be measured. The result will be the development of a methodology for determining relevant key performance indicators that can be applied to potential storage sites and existing storage facilities. In addition, a testing program will be developed during the course of the project that can be used to assess a site’s suitability for gas storage. Monitoring measures will also be developed to ensure the safe operation of the storage facilities.
