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Sand Dunes

RESERVES ESTIMATION AND UNCERTANTY

This course will provide a starting point for advanced understanding of integrated formation and evaluation of a field.

The participants will learn basic formation concepts and well logging; how to interpret logs and what to extract from the evaluation; the physical principles of the tools used in logging; how to characterize formations based on interpretation of well logs; reading and interpreting well logs; interpreting logs to estimate porosity, water saturation, lithology, and hydrocarbon content.

The course will also cover important issues for doing a correct integration of all the available logs.

Course can be delivered 

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

DURATION: 4 days

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LEVEL: Foundation to Skill

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DESIGNED FOR YOU, IF YOU ARE...

  • A Geologists,

  • Reservoir engineer,

  • Geophysicists,

  • Petrophysicists,

  • Geomodellers,

  • Young subsurface professionals

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HOW WE BUILD YOUR CONFIDENCE

This course will utilise a variety of examples to ensure an in-depth learning and understanding for the
petrophysical evaluation techniques. Some discussions of applications as well as exercises. The course will be delivered through a power point presentation. The participants will have access to the printed course materials and the examples they will have access to during the course.

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THE BENEFITS FROM ATTENDING

By the end of the course you will assured of understanding:

  • Physical principles of main open hole logging tools

  • Applying basic quality control techniques to validate logging data

  • Main applications and limitations of the different tool readings

  • Performing a quick qualitative interpretation to determine possible interest zones

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TOPICS

You will be acquired:

  • Basic Logging and Petrophysical Concepts

  • Porosity and permeability concepts and classification

  • The reservoir: minimum conditions for productivity

  • Introduction to well logging

  • Log classification according to the measured properties

  • Auxiliary measurements, uses and common issues

  • Basic measurements: Gamma ray and spontaneous potential

  • Log correlations with cores

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DAILY AGENDA

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Day 1

  • Introduction to logs and different types of logs

  • Correlate and depth match logs

  • Logging environment

  • Subsurface pressure measurement

  • Temperature logging

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Day 2:

  • Log Measurement and tools

  • Interpretation charts

  • Caliper Log; SP Log; Resistivity Log

  • Gamma Ray Log

  • Sonic Log

  • Density Log

  • Neutron Logs

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Day 3:

  • Lithology and Porosity determination

  • Carbonate Effects on Porosity determination

  • Permeability definition and types of permeability

  • Neutron-Density crossplots

  • Sonic-density crossplots

  • M-N Plots

  • Possible interest zones

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Day 4:

  • Core calibration

  • Saturation Determination in clean formations

  • Crossplots: Resistivity vs Porosity

  • R0 and F

  • Exercise

  • Extra: Facies, Sequences and Depositional Environments

 

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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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