Reserves Classification and Categorisation

HOT Engineering
Course summary
Upon request the course can be extended to 3 days
1,950 EUR
Stavanger, Worldwide
Next available date: Enquire for more information - Worldwide
Corporate Training for Teams

Reserves Classification and Categorisation

Reserves Classification and Categorisation

The course provides the “big picture” on the concept for the classification and categorisation of petroleum resources and reserves. The “concept” has been elaborated in the industry guideline of Petroleum Resources Management System (PRMS) of SPE/AAPG/WPC/SPEE.

The course starts with an overview of the basic principles of classification and categorisation to Technically Recoverable Resources (TRR). Discussions of the commercial criteria, project maturity driven sub-classification, probability-based categorisation and the summary of adequate applicability of resource estimation methods will follow. Recommendations to avoid resources classification and categorisation pitfalls that can easily result in biased reserve reporting are also made. The course concludes with an overview of petroleum resource portfolio management.

Suitability - Who should attend?

This course is designed for you, if you are:

  • A Senior geoscientist, reservoir engineer or petroleum economist engaged or involved in petroleum resources and reserves estimation, classification and categorisation
  • A member of the board, committee or formal organisation in charge of reserve evaluation, booking and reporting
  • Working in a company which declares the adherence to PRMS in resource estimation, reserves evaluation and reporting

Outcome / Qualification etc.

The key feature of the course is interdisciplinarity. Participants – independently of professional backgrounds – will gain confidence in the classification and categorisation principles of petroleum resource and reserves assessments.

By the end of the course you will feel confident in your understanding of:

  • The content beyond resource assessment terminologies
  • How commercial criteria are differentiating between Contingent Resources and Reserves
  • The rationale behind project maturity sub-classification and its alignment with decision stage-gates
  • The probabilistic and deterministic resource/reserve assessment approaches
  • Resource estimation methodologies and the pre-requisites of their application
  • Volume aggregations (projects - accumulation; projects - fields; projects - portfolio)

Training Course Content

  • Classification of the Technically Recoverable Resources
    - The Petroleum Initially In-Place and the Technically Recoverable Resources
    - Resource classes (Prospective, Contingent, Reserves)
    - The commercial criteria (economic viability, management engagement, marketability, availability of logistics, legal and social acceptance)
    - The project maturity based sub-classification
    - Reserve statuses (Undeveloped, Developed)
  • Resources and reserves categorisation
    - The range of the uncertainty
    - Probabilistic (P90, P50, P10) and deterministic Low, Best and High Estimates
    - The scenario based (1U, 2U, 3U; 1C, 2C, 3C; 1P, 2P, 3P) and the incremental (C1, C2, C3; P1, P2, P3) categories
  • Ambiguities in resource classification and categorisation & frequent pitfalls
    - Split conditions
    - Split classification
    - The misunderstood resource maturation
    - Is Proved (1P) proven?
  • Petroleum resources portfolio management
    - Volume aggregations: project - accumulation, field, corporate resources/reserves
    - Corporate resource/reserves records and reserve reporting
    - Resource tracking and forecast of resource/reserves replacement
  • Estimation bias analyses

Optional: Upon request, the course can be extended to 3 days to include the comparison and alignment of the PRMS concept with the resources categorisation scheme of RF2013, the Oil and Fuel Gas Reserves and Resources Classification of the Russian Federation of 2013.

Please inquire for more information!


The course fee includes tuition, course material, refreshments and lunch per session day and a 100 EURO non-refundable registration fee. Course fees do NOT include accommodation or living costs. Applicable taxes will be added.

The course is held at a top quality hotel with excellent meeting facilities.

Provider: HOT Engineering

The HOT Energy Group - A Multidisciplinary Consultancy with Global Activities

The HOT Energy Group (HOT) is a technology driven, multidisciplinary and independent organisation serving the oil & gas industry in its pursuit of recovery and field operations optimisation. With more than three decades of specialist experience in the subsurface domain,...

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Contact information for HOT Engineering

HOT Engineering

Parkstrasse 6
A-8700 Leoben

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