This foundation workshop teaches you SPE PRMS, the oil and gas industry's standard system for classifying and reporting reserves. You'll learn why hydrocarbons in the ground aren't reserves, why every reserve must be tied to a real project, and how volumes move from discovered to commercial to booked. We use ultra-heavy oil field as a real-world case study to show how it all plays out.


Built for engineers, geologists, and finance teams who work with reserves.

Workshop Objectives

By the end, you'll be able to:


Explain what PRMS is and why it exists


Tell the difference between volumes in place, recoverable volumes, and actual reserves


Apply the four tests every reserve must pass: discovered, recoverable, commercial, remaining


Classify volumes across Prospective Resources, Contingent Resources, and Reserves


Spot the common mistakes that lead to overbooking and lost credibility

About the Presenter

Mr. Biswajit Choudhury is a seasoned Reservoir Engineering Consultant with over 40 years of experience across some of the world's most respected oil and gas organizations, including Shell International, PDO (Petroleum Development Oman), BG Group, and Oil India Limited. A graduate of IIT (ISM) Dhanbad, he has authored 12 peer-reviewed journal publications and has worked across exploration, development, and production phases in multiple global basins.


His career spans reservoir characterization, field development planning, enhanced oil recovery, and reserve estimation — giving him a uniquely integrated perspective that bridges technical rigor with commercial reality. Mr. Choudhury brings that depth directly into the classroom, making complex reservoir concepts accessible, practical, and immediately applicable.

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