Evaluation of hydrogen storage in sandstone reservoirs using ¹H nuclear magnetic resonance spectroscopy

Evaluation of the hydrogen storage capacity of porous rocks is crucial for underground hydrogen storage. Using ¹H nuclear magnetic resonance (NMR) spectroscopy, we successfully characterized the hydrogen responses and identified storage mechanisms in Berea sandstone under varying water saturation. Here, the results indicate that the injected hydrogen behaves as a free gas phase and is capable of occupying the empty pore volume regardless of the saturation state. No hysteresis was observed during injection and production cycles.. Authors: Dang, Son T. [Univ. of Oklahoma, Norman, OK (United States)]; Mamoudou, Sidi [Univ. of Oklahoma, Norman, OK (United States)]; Rai, Chandra S. [Univ. of Oklahoma, Norman, OK (United States)]; Ho, Tuan A. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)] (ORCID:0000000281291027). DOE Contract: NA0003525. Subjects: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 58 GEOSCIENCES