Abstract:
Gas hydrates are an important type of mineral resources in geologic and resource surveys, but there are many challenges, e.g.unestablished seismic responses and mechanical and electrical properties, in hydrate exploration and development.Without appropriate ambient temperatures and pressures needed for gas hydrate occurrence, these solid compounds may decompose and then trigger marine environmental change and geologic hazards.An effective way to understand complicated rock physics of gas hydrates is lab tests.We review the synthetic methods including cooling and icing, THF solution, excess water, excess gas, temperature, and ice powder blending and the factors that may influence hydrate synthesis, e.g.temperature, gas pressure, particle size, mineral composition, water content, surfactant, salt content, and formation skeleton.We also discuss the progress in acoustics, mechanics, and electricity related to hydrate rock physical experiments and future efforts focusing on rock physical experiments.