Porosity & Permeability System

• Width: 28 in.
• Depth: 29 in.
• Height: 13 in.
• Weight: 150 lbs.
• This product is customizable! Contact Grace Instrument for details. (All M9XXX machine series products are customizable.)

Advanced, Cost-Effective Permeability and Porosity System
The Grace Instrument M9170 High Pressure Porosity and Permeability System is an advanced instrument that performs porosity and permeability tests on both high permeability and low permeability plug-sized core samples under confining pressures of up to 10,000 psi. Standard unit is compatible with nitrogen testing media (helium optional).*

Versatile Device Supports Porosity, Low Permeability, High Permeability, and Klinkenberg-Corrected Permeability
The M9170 makes porosity measurements using the pressure to volume relationship given by Boyle's law. The porosity of a material is the percent of void space in a known solid volume. Effective porosity is the percent of this space that is interconnected and would be capable of containing oil or natural gas. To measure the effective porosity, a known volume of gas is pressurized in the first section. When the valve is opened, gas expands into the core holder and the new pressure is measured. Since pressure is inversely proportional to volume from Boyle’s law, the volume of the g value, the porosity, and the grain volume of the core can then be found.

The M9170 measures both low and high core gas permeability by using the unsteady state pulse decay method and steady state flow method. When the M9170 uses the unsteady state pulse decay method, the gas permeability of low permeability cores is measured. A known atmospheric volume of gas is pressurized and trapped in the first section and the exit valve is kept shut. When the valve is opened, the gas will flow through the core holder due to the pressure difference. The permeability of the core can then be determined as a function of the gas pressure decay.

When the M9170 uses the steady state flow method, the gas permeability of high permeability cores is measured. The gas at the entrance valve is initially pressurized. All valves are then opened, allowing the gas to flow through the core. At steady-state flow conditions (dP/dt=0 and dq/dt=0), the gas pressure and flow rate are measured and used to calculate the permeability using the integrated form of Darcy’s Law for compressible fluids. Permeability has been demonstrated to be a function of reciprocal pressure.

The M9170 is also able to calculate the Klinkenberg-corrected permeability using gas permeability measurements at different pressures.

Preconfigured PC Includes Complementary, Advanced Grace Instrument M9170 Software
Advanced M9170 High Pressure Porosity and Permeability Software is included FREE with each unit.

This intuitive, user-friendly software automates testing and accurately records results from the unit to any standard Windows PC, simplifying the testing workflow. Valves are automatically opened and closed, and almost all other testing procedures are fully automated step-by-step from start to finish. The user only needs to make very minimal regulator adjustments during testing, maximizing workflow efficiency. The M9170 software handles all control, measurement, data collection, and calculation of grain density, inertial coefficients, and rock compressibility based on the results of the porosity and permeability tests.

Data is saved in .csv file format and can be conveniently exported to Excel or any other spreadsheet software for further manipulation and analysis.

The software also generates charts and reports. In particular, Klikenberg and low permeability data have special chart views for easy comparison.

No software installation or setup is required! A preconfigured computer, including all necessary hardware and software components, will be set up by Grace Instrument. The software will be installed on the PC by a Grace Instrument technician for your convenience.

Tabletop Device Easy to Clean and Maintain
This device fits easily on a standard tabletop or lab workbench. Cleanup between tests is quick and easy. The chassis of this device is made of stainless-steel and is easy to wipe down. A small compartment on the left side of the unit latches open to allow the user to easily replace reservoir oil.

The Grace Instrument Quality Promise
The Grace Instrument M9170 High Pressure Porosity and Permeability System is a powerful testing tool. Engineered with over 20 years of experience and the latest in core analysis technology, this reliable, long-lasting testing device features modern features and design that have been successfully used by laboratories and large corporations worldwide.

Custom specifications, automation, specifications, and other solutions are also available. Contact Grace Instrument to learn more. Our team is readily available to answer any questions you may have and guide you to find the ideal custom solution for all your testing needs. A complementary 1-year warranty is included with each device. Optional extended warranties are also available.

Grace Instrument is an ISO 9001:2015 certified company.

^{*Testing media options vary depending on user's selected specifications.}