A segmented chamber and fluid-line layout measures methane or hydrogen permeation on existing underground earth conductors with minimal excavation.
Acoustic airflow checks at two fan test speeds detect air filter degradation more accurately while limiting false alerts and noise.
3D imaging and iterative pore- to Darcy-scale flow matching determine relative permeability faster while capturing saturation profiles and capillary end-effects.
Oscillating flow plus pressure and displacement harmonic analysis measures porous media pore size distribution accurately without sample damage or pollution.
A four-descriptor regression model predicts solvent diffusion in polymers, reducing calculation time for film solvent screening.
A computational model uses density, porosity, and mineral phases to quantify rock properties for reservoir and drilling decisions.
Gas-flow feedback adjusts pressure ramp rates in real time, balancing pore-size accuracy and test speed in porous solids.
Pulse-decay analysis characterizes dual-continuum flow in tight formations to resolve measurement precision limits and improve production prediction accuracy.
An angled venting channel removes trapped air bubbles from under dentin samples, standardizing fluid flow rates and improving measurement precision.
A porosity measuring device determines individual particle porosity using magnetophoretic velocity in a magnetic field.
A selectively permeable membrane regulates water vapor in a sealed sensing cell without exposing the sensor to external humidity.
A mass spectrometer detects analyte permeation through test films using pulsed sampling to maintain balanced pressures.
Piston containers stabilize high pressure to resolve measurement inaccuracies in tight rock core permeability testing.
A gas-phase hydrogen permeation test device uses a passive discharger to manage high-pressure environments.
A supergravity centrifuge triaxial chamber generates enhanced gravitational acceleration to replicate deep earth in-situ stress and seepage fields.
A sealed retention chamber captures permeant diffusing from a container for periodic concentration detection.
A gas permeation testing sample plate uses bushings to align conduits with a manifold for secure container mounting.
Particle-like fillers, dead volume reducing rods, and reflection plates resolve poor thermal conductivity at low relative pressures.
Measuring permeability changes during stress loading and unloading cycles distinguishes natural fractures from artificial ones in reservoir rock samples.
Convolutional neural networks analyze in-situ fluid measurements to estimate formation conditions, reducing cleanup time and costs.
Measuring frequency-dependent capacitance of endothelial cell layers screens drugs affecting paracellular permeability.
A gas flow characterization system measures pressure evolution through multilayer porous structures using a slip flow model to determine layer-specific properties.
A hydrate reservoir permeability measuring apparatus simulates formation conditions to enable directional flow analysis.
Normalizes mercury porosimetry data across pressure zones by computing accuracy-based adjustments that remove transition artifacts.
A test probe measures coolant velocity and pressure gradients to calculate local permeability across porous surfaces.
A detachable gas container separates the test sample from the pressure sensor to enable intermittent measurement cycles.
A dry heat diffusion cell uses a cylindrical mixer with angled grooves to mix receptor medium.
A flow cell with a venting channel removes air bubbles to resolve measurement accuracy issues caused by leaks and inconsistent flow rates.
A stepwise pressure protocol measures shale gas permeability and porosity in a single continuous test run.
A device determines specific surface area using thermodynamic adsorption capacity from inert gas measurements.
A gas expansion apparatus forces water into concrete samples to measure total porosity and pore volume distribution accurately.
Alternating electric fields detect cells passing through filter units to replace manual incubation and reduce testing duration.
Integrated permeameter calculates material permeability by measuring simultaneous flow rate and pressure gradient across porous samples.
Gas sorption analysis measures adsorbed and free gas to characterize shale microstructure.
A retrofit cartridge adapts existing film permeation instruments to measure analyte transmission through prefilled packages.
Moving the mask through stationary aerosol eliminates complex airflow equipment while maintaining precise particle concentration measurement.
A method processes well parameter time series to determine connectivity between hydrocarbon production wells.
Polymer film interlayer prevents water vapor infiltration during sample exchange, eliminating lengthy degassing processes for rapid gas barrier testing.
A sidewall coring tool measures rock permeability using nitrogen gas flow through a sample testing chamber.