GUIDANCE: INJECTION OF HYDROGEN/NATURAL GAS ADMIXTURES IN UNDERGROUND GAS STORAGES FACILITIES (UGS)

摘要

With the implementation of measures to mitigate climate change, renewable gas and especially Hydrogen is expected to take growing place in the energy mix in the next decades. Underground Gas Storage (UGS) operators are keen to support this evolution. However, as the Underground Gas Storage facilities are predominantly built for the storage of natural gas, a certain number of technical issues have to be investigated and dealt with before confirming the feasibility of Hydrogen/natural gas admixtures injection. The purpose of this paper is to present an overview of all these technical issues and how they have been already addressed in literature. Another objective is to promote research programs and experimentations to complete our knowledge on the impact of storing natural gas blended with Hydrogen. Pure Hydrogen storage is also a topic of interest for gas industry but even if research programs or experiments of H_2 storage are considered in this paper, this is not topic addressed in this paper.