OGExperts
Oil, Gas & Energy experts
Basic Concepts for a Good Formation and Evaluation
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 Duration: 4 days
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Level: Foundation to Skill
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DESIGNED FOR YOU, IF YOU ARE...
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A Geologists,
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Reservoir engineer,
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Geophysicists,
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Petrophysicists,
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Geomodellers,
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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
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Applying basic quality control techniques to validate logging data
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Main applications and limitations of the different tool readings
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Performing a quick qualitative interpretation to determine possible interest zones
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TOPICS
You will be acquired:
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Basic Logging and Petrophysical Concepts
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Porosity and permeability concepts and classification
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The reservoir: minimum conditions for productivity
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Introduction to well logging
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Log classification according to the measured properties
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Auxiliary measurements, uses and common issues
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Basic measurements: Gamma ray and spontaneous potential
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Log correlations with cores
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DAILY AGENDA
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Day 1
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Introduction to logs and different types of logs
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Correlate and depth match logs
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Logging environment
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Subsurface pressure measurement
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Temperature logging
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Day 2:
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Log Measurement and tools
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Interpretation charts
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Caliper Log; SP Log; Resistivity Log
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Gamma Ray Log
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Sonic Log
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Density Log
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Neutron Logs
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Day 3:
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Lithology and Porosity determination
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Carbonate Effects on Porosity determination
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Permeability definition and types of permeability
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Neutron-Density crossplots
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Sonic-density crossplots
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M-N Plots
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Possible interest zones
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Day 4:
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Core calibration
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Saturation Determination in clean formations
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Crossplots: Resistivity vs Porosity
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R0 and F
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Exercise
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Extra: Facies, Sequences and Depositional Environments
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INSTRUCTOR:
Ana de Sousa has 27 years of experience in oil and gas, both in clastic and carbonate reservoirs. She has a degree in Geological Engineering from the University of Coimbra, in Portugal, and a master's degree in Reservoir Assessment and Management from Heriot-Watt University, in Scotland. UK.
She joined the company Partex Oil and Gas in 1994 as an intern and until 2021 she was a senior reservoir geologist with various technical roles in reservoir characterization, modelling, and seismic interpretation in Kazakhstan, Brazil, and the Middle East (Oman).
She is a specialist in Rock Type, ANN, and SHF models and the author of several articles about Rock Types in training courses and mentoring.