Test vessel
- Triaxial confining stress
- Flow-through cell
- Temperature controlled
Experiment steps
- Pack the sample and measure gas permeability
- Convert sample water into hydrate
- Measure the gas permeability of the hydrate-bearing system
- Perform a water flood and monitor saturation changes at specific locations
- Dissociate the hydrate
- Measure single-phase permeability of the sand
- Invert data to estimate relative permeability
Test Conditions
Permeabilities
Test 1 Flow
Calibrated relative permeability and capillary pressure
Recommendations/Lessons Learned
- Measure the residual saturation in water/sand and water/hydrate/sand systems
- Estimate the relative permeability parameters for water/sand system (without hydrate) using CT and the inversion simulation technique
- Estimate/measure the capillary pressure independently for water/sand and water/hydrate/sand system
- Refine the current experimental setup to reduce uncertainties in liquid injection and mass balance