Experimental Study on the Relationship Between Gas Hydrate Saturation and Water Permeability in Sediments

摘要

A new experimental equipment is developed to study the relationship between gas hydrate saturation and water permeability in sediments.Water with dissolved methane is injected circularly into the sediments to form gas hydrate,and the gas hydrate saturation in sediment pores is measured by Time Domain Reflectometry(TDR).The experimental result shows that water permeability is barely influenced by gas hydrate when the saturation is below 30%.When the gas hydrate saturation in sediments pores is larger than 30%,water permeability