The Effect of Salinity on the Strength Behavior of Hydrate-Bearing Sands

The first prerequisite for the efficient and safe exploitation of gas hydrate resources is to accurately analyze primary mechanical performance hydrate-bearing sediments (HBSs). HBSs complex affected by many factors, including reservoir environment in situ (temperature, pore pressure, salinity). Several published studies have demonstrated a correlation behavior hydrates with temperature pressure (T-PP). However, research on effect salinity properties or still relatively blank field. This study found that strength decreased increasing salinity. phenomenon can be attributed influence phase equilibrium state hydrates. NaCl changed relationship between curve T-PP conditions. distance conditions was reduced salinity, which turn led decline sample strength. Moreover, further explored. added regulate hydrate. When were curve, behaviors showed high degree consistency.