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Sand Dunes

Geological Play Assessment & Prospect Evaluation

In any oil and gas business, the objective is to obtain, above all, positive and viable results.

In fact, what is always sought is a reliable estimation of oil and gas volumes on and the expected amount of oil and gas that can be recovered, all without harming the environment and the quality of life of the inhabitants.

This course will be lift in exploration points like plays, prospect and leads but also in hydrocarbons in place and what will be the interactions between the different variables.

Understanding Exploration, Appraisal and Production Stages with wells classification it will be a must. Geological risks and uncertainty present in exploration phase. Understand the differences between stochastic and probabilistic estimation. Predict the number and size distribution of potential future fields in a play. Play assessment techniques with number, sizes and associated risks for potential fields by using field densities, field size distributions and oil and gas relationships. Drilling information’s for life cycle of a field.

Course can be delivered 

Online or, either in Class room in Client´s permisses or in Algarve Portugal

Course Duration: 5 days

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Level: Foundation to Skill

 

DESIGNED FOR YOU, IF YOU ARE...

  • All exploration team members including:

  • geologists,

  • geophysicists,

  • reservoir engineers

  • and managers who make business decisions based on exploration data

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HOW WE BUILD YOUR CONFIDENCE

We will use slides presentation, paper exercises and examples from real cases.

 

THE BENEFITS FROM ATTENDING

  • Identification of plays, prospects and leads in exploration phase where a few data is available.

  • Understand the differences between stochastic and probabilistic estimation and have the knowledge to know when to one or the other.

  • Predict the number and size distribution of potential future fields in a play

  • Describe and calibrate risks associated with discovering a successful play

 

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

  • You will learn how to distinghish Plays, Leads from Prospects.

  • Understand the differences between stochastic and probabilistic estimates and have the knowledge to know when to one or the other.

  • To quantify all geologic riscks and uncertainties.

  • To use all the best available methods for traps volumetrics, hydrocarbons charge for prospects, and potential numbers and sizes of prospects and plays.

 

DAILY AGENDA

 

DAY 1

  • Geological aspects and the role of the rocks and structures

  • Explanation of some geological concepts like trap volume, porosity, net/gross saturation, hydrocarbon fill fraction, formation volume factors, and recovery efficiencies

  • Risks, Volumes and Uncertainty

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DAY 2

  • Meaning of basic statistical parameters (Mean, Mode, P10 etc.)

  • Exercises

  • Distributions appropriate to use in petroleum exploration projects;

  • Where and how to get data to build distributions.

  • Assessment of geological risks for appraisal and development wells

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DAY 3

  • Play, Prospect and Leads - Definitions and examples

  • Play maps, petroleum systems and hydrocarbon plays are important for assessment risks and volumes for individual prospects

  • Play maps and demonstration of how important they for the understanding of the regional geology are

  • Exercises on the play’s maps for risk

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DAY 4

  • Prospects and Portfolios

  • Prospect maturation workflow, risk profiles and ranking of prospects, risk mitigation, scenarios in prospect assessment: when to use them and when not

  • Understand the differences between stochastic and probabilistic estimation and have the knowledge to know when to use one or the other.

  • Volume assessment: volume calculation exercise, how to quickly calculate low, medium and high volumes for a prospect, recapitulation of how to select appropriate distributions.

  • Mention of GEOX Software

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DAY 5

  • The role of drilling in the exploration, appraisal and development of a field

  • Types of information gathered during the drilling of a well

  • Objectives of an exploration, appraisal and development well in terms of play and prospect evaluation

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INSTRUCTOR:

Ana de Sousa has 27 years of oil and gas experience, both clastics and carbonates reservoirs. She has a background in Geology Engineering by Coimbra University in Portugal, and MSc in Reservoir Evaluation & Management from Heriot Watt University, in Scotland.

Joined Partex Oil and Gas company in 1994 as a trainee and until 2021 she was a senior Reservoir Geologist with several technical roles in reservoir characterization, modelling and seismic interpretation in Kazakhstan, Brazil and Middle East (Oman). Specialist in Rock Type, ANN and SHF models. Author of several papers about Rock Types with different methodologies.
Expert in different modelling software’s and in training and mentoring.

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