Description
The HDS-350 Hydrogen Diffusion & Sorption Cell is a fully instrumented laboratory system designed to measure hydrogen diffusion and sorption/desorption kinetics in reservoir rocks and caprocks under representative underground storage conditions. The unit operates at confining pressures up to 5,000 psi, pore pressures up to 4,500 psi, and temperatures up to 150°C, using a Hassler-type core holder for standard 1.5" diameter core samples. It integrates precision injection pumps, automatic confining-pressure control, back-pressure regulators, online H₂/CH₄ gas analysis, and computerized data acquisition for automatic calculation of effective diffusion coefficients. of HDS350 of HDS350 The system also incorporates a temperature-controlled air bath with hydrogen and methane leak detection and automatic safety functions. It provides essential experimental data for Underground Hydrogen Storage (UHS) studies, including reservoir characterization, caprock integrity assessment, cushion-gas interaction, and evaluation of the influence of water saturation on hydrogen transport. The resulting diffusion and sorption data can be used to calibrate reservoir simulators and rock/fluid transport models, improving predictions of hydrogen mobility, retention, storage efficiency, and long-term containment performance.
Features
Maximum confining pressure: 5,000 psi
Maximum pore pressure: 4,500 psi
Operating temperature: Ambient to 150°C
Core diameter: 1.5" standard, 1" optional
Core length: 1" to 3"
Injection flow rate: 0.001 to 130 cc/min
Gas accumulator capacity: 1,000 mL × 2
Pressure measurement accuracy: ±0.15%
Gas analysis: H₂/CH₄, 0–100% H₂ range, <1% linearity/repeatability
Wetted materials: Stainless Steel 316L
Benefits
* Improved UHS reservoir modelling by providing experimental hydrogen diffusion and sorption data for calibration of numerical simulators. of HDS350
* Better assessment of caprock integrity, helping evaluate potential long-term hydrogen migration and containment losses. of HDS350
* Evaluation of hydrogen retention and recovery, through measurement of sorption, desorption, hysteresis and residual trapping in porous media. of HDS350
* More realistic storage-condition testing, including the effects of water saturation, cushion gases, high pressure and temperature on hydrogen transport. of HDS350
* Reliable and reproducible automated measurements, combining controlled pressure/flow, continuous gas analysis, data logging and dedicated diffusion-coefficient calculation software.
