These simulators make it easier for young professionals to work on their projects, and they are also very useful for students to work on their research and assignments. Regrettably, the vast majority of these simulators are out of reach due to the fact that sophisticated and cutting-edge simulators are extremely expensive and can only be bought by petroleum companies.

This article provides information about different kinds of software that are currently available and can be used without cost. Seven open-source simulators are discussed, along with their individual features and benefits.
This simulator also has the ability to control history matching wells, as well as bottomhole pressure, surface rate, reservoir rate, well lists, action conditions, and command processing. In general, both the data that is inserted (referred to as input) and the results that are released (referred to as output) are flexible and can be read using the software known as Eclipse. In conclusion, the OPM flow simulator is distinguished by its adaptable assembly and the speed with which it can develop new fluid models thanks to the presence of an automatic differentiation framework.

Matlab Reservoir Simulation Toolbox, or MRST for short, is a piece of open-source and free software that can be used to model and simulate subsurface reservoirs. The computational geosciences group in SINTEF Digital's mathematics and cybernetics department was the one responsible for the project's initial development. The user has access to this software's substantial international database. the database contains information from a variety of countries. In addition to that, it incorporates a variety of modules that were created by researchers at Heriot-Watt University. It is generated to ensure a quick framework and examination of the issues that arise during the simulation of the reservoir.

The isothermal and Darcy flow can be simulated in all three dimensions by BOAST 3-PC. It is predicated on the idea that reservoir fluids can be characterized by three fluid phases (oil, gas, and water) of constant composition, with physical properties that only vary with changes in pressure.

BOAST 3-PC can be utilized in a diverse array of contexts. It is able to simulate the recovery of oil and/or gas through the use of mechanisms such as fluid expansion, displacement, gravity drainage, and capillary imbibition. 

BOOST 3 is capable of handling a variety of common issues that arise during field production, including but not limited to the following:

• Conducting an assessment of the waterflooding operations.

• A choice that can be made to simulate reservoirs that slope steeply downward.

• Provisions for a variety of rock types as well as pressure, volume, and temperature zones.

• A method of automatic control that uses time steps.

• Per-grid-block allowances for a multiple number of wells.

• A choice between imposing rate or pressure limitations on the performance of the well.

• History matching by making use of oil, water, or gas production data, the gas/oil ratio or the water/oil ratio; the average reservoir pressure or bottomhole well pressure can also be matched.

1. As a result of its foundation in Dune, an open-source scientific numerical software framework for the solution of partial differential equations, DuMux is a component of a larger community whose scope extends beyond the simulation of fluid–mechanical processes in porous media

2.  Dune was developed by the Distributed Unified Numerics Environment (Dune) project

3.  Both Dune and DuMux are written in C++, and they make use of contemporary C++ programming techniques as well as C++ template meta programming to achieve a high level of efficiency and maintain generic interfaces

4.  The Dune core modules include, among other things, multiple grid managers that implement a versatile common grid interface, an abstraction for linear algebra, an iterative solver back-end, and abstractions that make Oil Drilling and Well Control Animation easier to perform parallel computing

8.  As a Dune module, DuMux was conceived of and is being developed as such

9.  It is reliant on the Dune core modules and can interact, on a case-by-case basis, with a number of other Dune-based extension modules

Applications for the UTCHEM oil reservoir include the following:
Waterflooding  Polymerflooding  Surfactant flooding  High-pH alkaline flooding  Surfactant/foam and alkaline surfactant polymer (ASP)/foam EOR  Tracer tests to characterize both single- and dual-porosity oil reservoirs  Profile control of oil wells with polymer gels  Modeling formation damage of oil wells  Tracer tests to character

LearnToDrill, in collaboration with Chevron (where they globally launched the drilling simulator), Lone Star College, and BP, developed the Well Control Simulator. It is one of the most cost-effective simulators available in the industry and complies with IADC WellSharp well control guidelines.

The Oil Drilling and Well Control Animation is the tool that is utilized for all of the simulations that are required by the IADC. These simulations include completion, well servicing, well control, and kick detection with kill problems. To begin, you have the option of beginning with a setup that consists of 10 preset templates and configurations. Second, you have the ability to create wells that are unique to your needs (with parameters such as piping sizes, kick timing, etc.). The expected output is then finally presented in detailed graphs that illustrate the behavior of the pressure at various stages of the kill operation. These graphs can be saved as exportable PDF files after they have completed their presentation.