Latest News
Software development, conferences and other non-confidential activity

Data thinner for mercury porosimetry

28 September 2021

At the request of one of our current users, a Python script is now available on the software downloads page for thinning output from mercury porosimeters for input to PoreXpert.  Although PoreXpert can automatically input data from many instruments, this pre-processing speeds up the simplex convergence algorithm and equally weights all points on the intrusion curve, whereas if data is input directly, important points of inflexion tend to be under-weighted statistically.

Special core analysis for unconventional reservoirs

13 September 2021

We have extended the use of PoreXpert to the calculation to special core analysis, specifically the simulation and calculation of relative permeability in tight-oil shale.  A PowerPoint presentation is available on the new Downloads | Application notes page.

New build and trial system now available

20 July 2021

A new update (build 703) is now available, free to all current users – together with our new trialware system.  You can now update your own version, or try PoreXpert for yourself for the first time, without any intervention from us – just go to the new software download page.  The downloaded software will automatically adapt to whether you are a current user with a licence dongle, or a new user.


24 June 2021

PoreXpert Ltd supports and is committed to align with the United Nations Sustainable Development Goals as detailed in our Sustainability Policy.

Effect of distorting a membrane

21 June 2021

One of the last checks of PoreXpert v2 build 700, due at the end of June, has been to try it on filters and membranes.  Here is an extract from a pre-formatted pdf report of the test, available in 6 different languages, showing a distortion giving rise to a reduction to 80% of original size of all voids above 0.88 μm within a membrane, characterised by a Porolux 1000 porometer.  As a result of the distortion, the absolute permeability reduces from 0.702 mD for air at 25 °C and 1 atm pressure to 0.292 mD for water at 25 °C.

U.S. patent accepted

5 May 2021

The United States Patent Office has accepted Application No. 16/753539 in the name of PoreXpert Limited : Pore Analysis .

Collapse tab

6 April 2021

A new additional upgrade to the Targeted Modification tool is a Collapse tab, which reduces the size of all voids within a given range to the minimum size of the selected range.  This new option is useful for calculating the endpoints of wetting phase relative permeability, in the presence of a non-wetting phase such as water or brine in an oil-wet rock or air in water-saturated soil.

Targeted modification

15 March 2021

Targeted modification operations allow the geometry of specific voids to be changed, to simulate properties such as sample compression, ageing and relative permeability.  A current major consultancy has required extensive sequential use of that tool, and in the process the algorithm has been over-hauled in terms of its background update of geometric variables.  It also now outputs the resultant porosity in the Home (Operations list) page.  These improvements, amongst several others, will be included in the next free update available to all current users, currently scheduled for May 2021.

Batch files

20 February 2021

Batch files allow PoreXpert to run a series of operations, in parallel for suitably powerful computers (as detailed in the Help system). An improved class of batch files has been developed, that indicate if they are being used wrongly. They are posted on a new Batch Files download page.

New intermediate tutorial

10 February 2021

In response to one of our users, we have written a new intermediate level tutorial entitled Modelling your own sample.  You can access it at .  It also explains how to view the simulated void structure of high porosity samples. With good wishes to all visiting this website, and the hope that soon Covid-19 will cease to impact on all our endeavours.