New examples of modelling fluid flow in a compacting porous medium

Posted on August 6, 2021

The software is now supplemented with new examples related to the fluid transport in a compacting porous medium. The examples demonstrate the simulator’s capabilities for modelling the porosity waves. We present 1-D and 2-D benchmark simulations of the solitary porosity waves. Also, we present an example showing that the proposed simulation approach can resolve the localized flow in the ductile zone of a hydrothermal system and numerous hydrothermal convection cells in the brittle zone. The example demonstrates the influence of decompaction weakening on high-porosity channels forming in the ductile zone and their interaction with the convection in the brittle zone.

Release 2021.C

Posted on August 6, 2021

The MUFITS version 2021.C is available. The main new developments of the release are

New examples of the co-injection of various gases into aquifers

Posted on March 5, 2021

The software is now supplemented with three new examples related to the compositional modelling of multicomponent gas injection into saline aquifers. First, the Example-H3 can now be simulated by employing the SW section of the COMPS module. Second, the previous example has been extended for the case of a flue gas injection. Third, we present an example of CO2 injection into a synthetic natural gas storage reservoir aiming at both the sequestration of CO2 and the cushion gas substitution.

Release 2021.B

Posted on March 5, 2021

The MUFITS version 2021.B is available. The main new development of the release is the introduction of the SW section of the built-in library of the EoS coefficients for the COMPS module. The extension is designed for the reservoir simulations involving multicomponent aqueous solutions (including the brine solutions). For example, the SW section allows for the modelling of various gases co-injection into saline aquifers. The SW section is based on the Soreide and Whitson (1992) modification to PR EoS. The most recent correlations for the EoS coefficients, which are based on the latest experimental data on mutual solubility, are implemented in the software.

Release 2021.A

Posted on February 12, 2021

The MUFITS version 2021.A is available. The main new development of the release is the introduction of the USEREOS option for linking MUFITS with a user-supplied shared library. The library is intended to export to MUFITS procedures for the fluid properties prediction.

New example (Modelling ground displacement and gravity changes)

Posted on May 05, 2020

An example showing the built-in options for modeling the gravity changes and ground displacement is now available. The example concerns an axisymmetric study of hydrothermal activity at Campi Flegrei. The gravity changes and ground displacement associated with the system unrest are simulated.

Release 2020.B

Posted on May 05, 2020

The MUFITS version 2020.B is available. The main new development of the release is the possibility of history matching to the parameters at the observation points (e.g., gravity changes and ground displacement).

New example (Miscible displacement of oil)

Posted on April 28, 2020

An example showing the application of the COMPS module for modelling the multi-contact miscible displacement in porous media is now available. The example demonstrates how a compositional model is described in the RUN-file and how the EoS coefficient can be loaded from the built-in library of components.

Release 2020.A

Posted on March 20, 2020

The MUFITS version 2020.A is available. The main new developments of the release are

The complete list of new developments can be found in the section New developments of the Reference manual. The simulator executable can be downloaded on the page Download.

EOS module COMPS

Posted on March 20, 2020

The EOS module COMPS is available now for modelling the multicomponent flows of mixtures which properties are predicted with the cubic equation of state. The module is supplied with the built-in library of components for the three-parametric Peng-Robinson (PR3) and Soave-Redlich-Kwong (SRK3) equations of state. The EoS coefficients can be automatically loaded from the library in the simulation in order to ease its usage. The module should be useful for compositional simulations of petroleum reservoirs, in particular gas-condensate fileds, subsurface gas storage, and other processes accompanied with the significant changes in the fluid composition. The module is capable of non-isothermal simulations.

New examples

Posted on March 20, 2020

The Examples page was extended by adding input data to an example demonstrating the optimization module usage. The example demonstrates a strategy for evaluating an optimal well placement by using the OPTIM-ENDOPTIM section of the U-program.

Release 2019.B

Posted on August 29, 2019

The MUFITS version 2019.B is available. The new developments of the release are

The complete list of new developments can be found in the section New developments of the Reference manual. The simulator executable can be downloaded on the page Download.

New examples

Posted on August 29, 2019

The Examples page was extended by adding input data to example simulation scenarious that demonstrate the simulator applications for modelling the brittle-dustile transition with account for plastic behaviour of rocks and hydrofracturing and the mechanical dispersion in porous media.

Release 2017.A

Posted on May 27, 2017

The MUFITS version 2017.A is available. The new developments of the release are

The simulator executable can be downloaded on the page Download.

New examples

Posted on May 27, 2017

The Examples page was extended by adding input data for the 6th SPE Comparative Study and the Five-spot geothermal production/injection benchmark study. These examples demonstrate MUFITS application to fratured reservoirs in double-porosity and multi-porosity simulations.

Release 2016.C

Posted on February 16, 2017

The MUFITS version 2016.C is available. The new feature of the release is modelling of well hydraulics and pressure drop along the wellbore due to the friction. The Multisegment Well model is appied for modelling well hydraulics. The simulator executable for Windows can be downloaded on the page Download. This is a beta version of a further release of the program that will be available later this year.

Input data for the 7th SPE benchmark

Posted on February 16, 2017

The Examples page was extended by adding input data for the 7th SPE Comparative Study. This example demonstrates MUFITS options for modelling horizontal wells and pressure drop along wellbore. Although modelling of wellbore friction is not necessary in the 7th SPE problem, this example can be used for preparation of input data in a different scenario where well hydraulics is important.

Release 2015.G

Posted on December 17, 2015

The MUFITS version 2015.G is available. The release contains the latest options of the simulator, including the GASSTORE module. The executables can be downloaded on the page Download.

MUFITS Training Courses Update

Posted on December 17, 2015

Two new MUFITS courses are available (see the page Documentation). You can use the documnetation provided with these courses instead of a User's Guide in order to understand the workflow with MUFITS.

EOS module GASSTORE

Posted on December 17, 2015

The EOS module GASSTORE is available now for modelling underground CO2 storage and hydrocarbon gas storage in saline aquifers. The module is supplied with 3 new examples:

Release 2015.D

Posted on May 29, 2015

The MUFITS version 2015.D is available. The crusial updates affecting the simulations input/output data are:

MUFITS Training Course

Posted on May 29, 2015

The MUFITS Training Course documentation is available on the page Documentation. The course is designed for researchers working with hydrothermal systems. It covers fundamentals of using MUFITS as well as various aspects of using EOS modules BINMIXT and T2EOS1.

SPE Comparative Studies

Posted on May 29, 2015

The list of examples was significantly extended. The input data for several SPE Comparative Studies are available now. These examples can be simulated using EOS module BLACKOIL. An extra example for the EOS module T2EOS1 is available as well.

EOS modules BLACKOIL and T2EOS1

Posted on May 29, 2015

MUFITS has two new EOS modules. The module BLACKOIL is for modelling petroleum reservoirs using extended Black-oil method. The module T2EOS1 is for nonisothermal modelling of water and steam flows in hydrothermal applications. The new keywords and mnemonics associated with the modules can be found in the Reference manual on the page Documentation.

Converter to VTK formats

Posted on December 20, 2013

The MUFITS output converter to VTK formats is available now. Using this utility, the results of hydrodynamic reservoir simulation can be uploaded in ParaView for visualization and post-processing. The description of the conversion options and controls are provided on the page Documentation.

Release 2013.C

Posted on October 25, 2013

The release 2013.C of the hydrodynamic module is available now. The new features of the release are:

Thermodynamic module

Posted on October 25, 2013

The thermodynamic module of MUFITS is now available. By using this module, the binary mixture properties (like density, composition, viscosity etc.) can be calculated, analyses or visualized in thermodynamic space. The executable of this module is available only for Windows system.

Release 2013.B

Posted on May 25, 2013

The release 2013.B of the hydrodynamic module is available now. The module is restricted for computational problems comprising not more than 25000 cells. The executables are available for both Windows and Linux systems. The new features of the release are:

CO2-H2O mixture properties file

Posted on May 25, 2013

The version 3.0 of CO2-H2O binary mixture properties data-file is available now. The data can be applied for CO2-H2O mixture properties prediction both under sub- and supercritical conditions. The data can be used for simulations of flows in geological formations in problems of CO2 geological storage as well as in problems of geothermal energy production including enhanced geothermal systems with CO2 as working fluid.

Examples-H1 - H4

Posted on May 25, 2013

The example H1-H4 are available now. These examples are related to the problems of CO2-H2O binary mixture flows in a porous media, particularly to the problems of underground CO2 storage. The examples are arranged in order of increasing complexity of the computational problem. Thus, the exapmle-H1 concerns a simple 1D Buckley-Leverett problem with formatted output data, which can be analyzed in any text editor. While the example-H4 concers a 3D simulation of CO2 injection in reservoir subjected to complicated geological settings. The examples are supplemented with the input data files.