Experimental Study of Sand Production during Depressurization Exploitation in Hydrate Silty-Clay Sediments

Experimental Study on Methane Hydrate Dissociation by Depressurization in Porous Sediments

Based on currently available data from site measurements in the Shenhu Area of the South China Sea, methane hydrate dissociation behavior by depressurization is studied in a one-dimensional experimental apparatus. According to time variation of temperature, resistance and gas production, the hydrate dissociation process is divided into three stages: free gas release, rapid dissociation and grad...

Mechanical properties of sand, silt, and clay containing tetrahydrofuran hydrate

[1] The mechanical behavior of hydrate-bearing sediments subjected to large strains has relevance for the stability of the seafloor and submarine slopes, drilling and coring operations, and the analysis of certain small-strain properties of these sediments (for example, seismic velocities). This study reports on the results of comprehensive axial compression triaxial tests conducted at up to 1 ...

DEM simulations of methane hydrate exploitation by thermal recovery and depressurization methods

The Impact of Hydrate Saturation on the Mechanical, Electrical, and Thermal Properties of Hydrate-bearing Sand, Silts, and Clay

An understanding of the physical properties of hydrate-bearing sediments is important for interpretation of geophysical data collected in field settings, borehole and slope stability analyses, and reservoir simulation and production models. Yet current knowledge of geophysical and geotechnical properties of hydratebearing sediments is still largely derived from laboratory experiments conducted ...

Fluid-Solid Coupling Numerical Simulation on Natural Gas Production from Hydrate Reservoirs by Depressurization