Title: Principal Reservoir Geologist
Hobbies: Video games & scuba diving
Favourite book: La Chasse au météore (by Jules Verne)
Favourite movie: Le Hérisson (2009)
Our people are at the heart of what we do. By combining deep practical field experience with technological innovation and cross-discipline ways of working, we help clients better understand their subsurface, manage reservoir uncertainty and maximise the value of their oil and gas assets, from exploration and geological modelling through to field development and well selection.
Meet Pierre-Jean Bacchus, Principal Reservoir Geologist in AGR’s Subsurface and Asset Evaluations team. With 20 years of international geoscience experience, Pierre-Jean brings together geological modelling, multidisciplinary data integration, uncertainty analysis, and digital workflows to help clients turn increasingly complex subsurface data into a shared understanding of their assets.
1. What first attracted you to a career in geomodelling and reservoir geology?
A geology hammer from my naturalist grandmother and a childhood spent playing video games made my career choice obvious. Becoming a ‘digital geologist’ was just natural.
2. Your career has taken you to major hydrocarbon hubs around the world. Looking back, how has working in international markets shaped the way you approach subsurface challenges?
My career has taken me to London, Middle East, Asia, and now again to Norway, working for leaders in their field – INPEX, Emerson, SLB, to name just a few.
There is no such thing as standard or normal. Cultural bias is deeply engrained into the most mundane things, from way of life to manufactured goods. And it holds true on how everyone evaluates the same data differently – oil and gas related or not.
3. Over the course of your career, geological modelling has evolved from largely manual workflows to highly integrated digital platforms, with AI now beginning to influence geoscience interpretation and field development decision-making. What changes have had the biggest impact on the way geologists and reservoir teams work?
The scale of data has exploded – from high-res 4D seismic to automated ensemble history matching. I haven’t printed a paper log in over a decade and don’t use colour pencil anymore.
4. Geomodelling teams have access to more geoscience data and technology than ever before. What are the biggest challenges in turning that information into better field development decisions?
Technology failed to break down organisational silos, sometimes even reinforcing them: experts jump assignments faster than ever, and young professionals have never done a hand calculation. The new crisis is human.
5. Energy companies are under increasing pressure to make field development decisions quickly while managing uncertainty. How can geological modelling help bring together multidisciplinary data to improve confidence in those decisions?
The modelling stage is the common denominator across all domains. It brings together seismic, petrophysics, reservoir engineering, and drilling for a ‘knights of the round table’ moment. Seeing each other’s data imaged and integrated into one shared model is worth more than a thousand words.
Maximising recovery through integrated subsurface and wells expertise and technology application
Pierre-Jean and our subsurface team brings together deep subsurface and wells expertise, technology and four decades of oil and gas experience to manage uncertainty, optimise performance and maximise value throughout the asset lifecycle. Contact Pierre-Jean and our team.