Randomized trial investigates dynamic evolution of CO2 hydrates in large-scale models, suggesting effective monitoring methods.
As an important alternative energy source for the future, the efficient development of natural gas hydrates still faces technical challenges due to their nonuniform distribution. To investigate the distribution characteristics and dynamic evolution of hydrates at a large scale in the laboratory, this study developed a large-scale three-dimensional resistivity tomography system, integrated with a high-density temperature and pressure sensor array, enabling real-time and nondestructive monitoring of resistivity distribution and saturation evolution during hydrate synthesis. By introducing the Archie formula and a finite element inversion algorithm, a quantitative mapping relationship between conductivity and hydrate saturation was established, and a reservoir heterogeneity evaluation method based on a heterogeneity coefficient was proposed. Experimental results demonstrate that hydrates exhibit distinct top enrichment and edge distribution characteristics within the sediment, with significant spatial heterogeneity in saturation distribution. ERT technology effectively captures dynamic variations in resistivity and saturation during hydrate synthesis, providing a valuable experimental approach and analytical tool for studying the heterogeneity in large-scale hydrate reservoirs.
No takes yet. Share an insight, caveat, or question.
Zhou et al. (2026) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: