
About us
Established in 2005
Rock Flow Dynamics had a clear vision to provide engineers with state-of-the-art dynamic reservoir simulation technology that met modern-day expectations for performance and usability. Now in our 21st year of development, tNavigator has grown into a fully integrated reservoir modelling & simulation solution, the first of it’s kind to integrate geoscience, reservoir engineering & production engineering domains in a single platform.
With offices in 30 countries globally, our technology has been adopted by over 330+ commercial clients across 47 countries. As well as world-class software, Rock Flow Dynamics offers a trusted team of industry experts and technical geniuses. Whether you require training, software support, or project consultancy; our global teams of experienced specialists are ready to help you.
We pride ourselves on listening to and acting on the demands of the industry, and delivering outstanding technology & service to our user community. Our development team now exceeds 190 software developers, delivering four major releases of tNavigator per year.

Empowering our users
tNavigator users have access an extensive library of information & training
materials on our client support portal, where you can find:
- 120+ training tutorials with data
- User manuals
- Software release updates
- Installation guides
Simply log in to access the resources you need. Contact our support team
for further assistance!
Rock Flow Dynamics at EAGE Annual 2025 in Toulouse!
Rock Flow Dynamics CEO Vasilii Shelkov Featured in GeoExPro
“I’ve had the pleasure of working closely with Serkan since 2018, starting with full five-day in-house support (before the home office era) and continuing through numerous workshops, trainings, and remote sessions over the years. His deep technical expertise and straightforward, solution-oriented approach have been invaluable – he quickly identifies the root of any issue and adapts effortlessly to different colleagues and communication styles.
Thanks to his support, we were able to implement advanced features in our models, such as wettability-altering surfactants in gas-condensate systems, and build our first fully integrated surface and subsurface network models. Most recently, Serkan ran a workshop at our Hamburg office, where he demonstrated the wide-ranging capabilities of the Model Designer – something we were able to immediately apply to our current well planning and drilling activities.
Serkan is always approachable, even outside regular hours, and consistently reliable. His contribution has been key in unlocking the full potential of the tNavigator software for our workflows, enabling faster, more comprehensive decision-making across our teams in Harbour Energy.”