Global Agency of Geosciences Experts

01-04c Prospective resources evaluation: uncertainties and risk

Objectives

To teach the basics to understand how to evaluate prospects, understand the risks and estimate the volumes

Who should attend

Profesionnals with a Scientific background.

Prerequisites

Background in Geosciences, petroleum geology or basic Petroleum Engineer knowledge

Duration

5 Session

Languages
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1
Session

Introduction to prospect evaluation

What are we talking about : concept, play or  prospect? What is a geological model, definition, useful  tools, level of knowledge… What typology for a prospect : Structural,  stratigraphic, combined, multi-objectives,  complex, with direct Hydrocarbon Indicator  (DHI)… The evaluation processes.

2
Session

Hydrocarbon In Place evaluation, how to assess uncertainties.

Probabilism vs Determinism Uncertainty ranges, distribution type and shape for  different parameters used for resources  calculation (volumes): Impact of Knowledge on uncertainties  evaluation Evaluation of static parameters: Gross rock  volume, Net to gross, Porosity, saturation

3
Session

Resources Evaluation: From Hydrocarbons in place to resources.

Evaluation of reservoir and  dynamic parameters: Fluid characteristics, Bo and Bg, permeability, recovery factor… Complex prospects: Multi scenarios, multi  objectives, DHI, inerts contents… Some insights on unconventional prospects  evaluation

4
Session

How to evaluate the Chance of success or Risking:

Presence of a Petroleum system?  Presence of a Reservoir? Existence of a Trap? Impact of Knowledge on risking evaluation  Risking evaluation for complex prospects, Multi  scenarios, multi objectives, DHI… Evaluation of dependencies.

5
Session

importance of prospect evaluation in the decision making process.

Valorization of a prospect. Consistency and Assurance in prospect  evaluation. What to know about cognitive biases and how to  mitigate them and avoid pitfalls. Conclusion

LECTURERS

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