Permeability Systems
Precision permeability measurement systems for steady-state, unsteady-state, and ultra-low permeability applications in reservoir characterization workflows.
Steady-State Gas Permeameter (Klinkenberg)
Standard industry permeameters typically provide you with results ranging from 0.001 to 30,000 millidarcy, however due to limitations within instrumentation resolution and accuracy, the rate for error grow higher for results at or lower than 0.001 millidarcy. Fortunately, our Steady State Permeameter, the SSK-300, is designed to overcome the challenges associated with quantifying low permeability measurements and avoiding major pitfalls.
System Features
- Full PID Auto Tuning Temperature Controllers with bright LCD displays to enable maximum resolution and accuracy for Upstream and Downstream Pressure Measurements
- Equipped with Four Mass Flow Controllers which allow the user to select the Proper Resolution based on Sensed Permeability Value
- Oven-Enclosed Core Holder to allow for Constant Temperature for Test Duration
- Compatibility with any Testing System, including, but not limited to, High Temperature, High Pressure, and Compaction Cell
- Short Circuit, Overload, Over-Voltage and Over-Temperature Protection
- Internal Flashcard equipped with Power Failure Protection and Global Wear-Leveling Algorithms
- Built-in internal CPU to maximize Lab Space
| Measurement Range | |
| Permeability range | 0.001 md – 10 Darcy |
| Measurement method | Steady-state gas flow |
| Klinkenberg correction | Multi-rate (≥3 points) |
| Pressure System | |
| Confining pressure | Up to 10,000 psi |
| Inlet gas pressure | Up to 1,000 psi |
| Sample Dimensions | |
| Core diameter | 1″ or 2″ |
| Core length | 1″ – 3″ |
| Operating Conditions | |
| Gas types | Nitrogen or Helium |
| Temperature | Ambient – 150°C |
Reservoir Characterization
- Routine core analysis workflows
- Klinkenberg-corrected absolute permeability determination
- Conventional and tight reservoir core testing
- Formation damage evaluation
- Quality control permeability measurements
Industry Standards
- ASTM D4525 – Permeability of Rocks by Flowing Air
- API RP 40 – Recommended Practices for Core Analysis
Sample Output
Unsteady-State Nano Permeameter
Our Integrated Advanced Nano Permeability system is built to meet your research facility standards. Our system is a completely automated testing apparatus capable of performing steady-state Darcy Measurement and unsteady-state Boyle’s Law Measurement.
Key Features
- Open software architecture to any measured or calculated variable
- Real-time data acquisition, process control software, graphical user interface analysis tools
- Pore pressure and flow rates for SS Permeability determination
- Integrated safety shutdown mechanisms
- Pressure vessel 10,000 psi
- Pressure Generators (confining and pore pressure pumps)
- Accepts sample diameters up to 1.5″ with a length of 2 times the diameter
- Isostatic confining pressure
- Down to 1 nano-Darcy accuracy of permeability
- Temperature up to 70°C
Control System
- Custom-built PC
- Measurement Instrumentation
Unconventional Reservoir Applications
- Shale gas and tight oil reservoir characterization
- Ultra-low permeability measurement for unconventional cores
- Pore pressure and confining stress effects on permeability
- Gas slippage and sorption studies
- Tight formation core analysis programs
Sample Output
Liquid / Gas / Ultra-Low Permeameter
Tight gas sands, mudstones, shale, and caprock define the economics of unconventional, CCUS, and geothermal projects — and they are also the hardest formations to characterize. MetaRock’s Integrated Ultra-Low Permeability System delivers liquid, gas, and ultra-low permeability measurements from 0.0001 mD to 50 Darcy on one instrument. The system is built around high-resolution MRL pumps engineered to handle flow rates and volume changes that define nanodarcy-scale flow where conventional permeameters read noise. Permeability is often the input to decisions about completion design, recovery, stimulation, seal integrity, and storage capacity — built to make that input trustworthy.
Key Features
- Liquid and gas permeability in one system with automatic fluid switching between gas and liquid phases without breaking confining pressure or unloading the sample
- Programmable pressure and temperature schedules up to 20,000 psi confining and 200 °C, allowing reservoir-condition testing to run unattended
- Closed-loop control of pump rate, back pressure, and pore pressure, removing operator-introduced variability between runs
- Ultra-low permeability measurement mode: built around high-resolution MRL pumps engineered in-house
- Integrated data management software for acquisition, analysis, and reporting run from a single application
| Performance | |
| Permeability range | 0.0001 mD to 50 Darcy |
| Fluid compatibility | Gas and liquid, including supercritical CO₂ |
| Measurement modes | Pulse decay, steady-state Darcy, non-Darcy flow |
| Operating Conditions | |
| Confining pressure | Up to 20,000 psi |
| Pore pressure | Programmable, reservoir-condition capable |
| Temperature | Ambient to 200 °C |
| Core sizes | 1″ to 4″ diameter |
| System | |
| Pump system | High-resolution MRL pumps, closed-loop control |
| Software | Integrated acquisition, analysis, and reporting |
| Automation | Unattended multi-stage testing, automatic fluid switching |
Primary Applications
- Determination of porosity and permeability characteristics of reservoir core samples under simulated in-situ stress conditions
- Comparative permeability analysis at multiple confining pressure conditions
- Research and development studies involving petrophysical and rock flow properties
Safety Features
- Software limits and alarms
- Rupture discs for overpressure protection
Advanced Porosity Permeability System (APK-608)
The APK-600 is a fully automated DC powered benchtop unit designed to measure porosity and permeability of core samples. The system utilizes a Hassler-type core holder, confining and pore pressure transducers, electronic valves, and a positive displacement pump capable of applying confining pressure up to 10,000 psi. Permeability determination is based on transient analysis of gas pressure decay (falloff) technique, while pore volume is measured in accordance with Boyle’s law.
Automated Capabilities
- Automatically measure and calculate Klinkenberg permeability
- Automatically measure and calculate Pore volume, Grain volume, and porosity
- Automatically detects gas leaks and troubleshoots the leak source
- Automatically calibrate reference volume and tank volumes
Components
- Hassler type core holder
- 30 ml confining pump
- High speed Digital Pressure Transducer
- Three (3x) independent reservoirs for pressure decay measurements
- Laptop
Software
- Fully automated software-controlled porosity and permeability testing
- Automatic valve sequencing and step-by-step test execution from start to finish
- Intuitive and User-Friendly Software
- Real-time plotting of any output variable
| Measurement | |
| Permeability range | 1μD to 5D |
| Porosity | 1 p.u. |
| Pore Pressure Transducer accuracy | 0.02% FS |
| Operating Limits | |
| Maximum Pore Pressure | 250 psi |
| Confining Pressure | 500-10,000 psi |
| Loading type | Hydrostatic |
| Temperature | Ambient |
| Sample Dimensions | |
| Core Diameter | 0.5–1 inch |
| Core Length | 1–4 inch |
| Utilities | |
| Air Pressure | 80 to 100 psi (dry) |
| Gas supply | 250 psi Nitrogen |
| Power | 24VDC/5A |
| Interface | Ethernet (DAQ control) |
High-Throughput Core Analysis
- Routine core analysis for large sample batches
- Quality control in commercial core analysis laboratories
- Porosity and permeability database generation
- Formation evaluation and reservoir characterization
- SCAL sample screening and selection
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