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Introduction to Open Hole Log Analysis (PPH10)


    This is an updated version of the Basic Well Log Interpretation course which Roger Nutt has successfully taught for many years. Although some experience with reading logs is an advantage, this course is ideal for anyone who has no prior knowledge or experience, especially newcomers to the oil industry.
    In one week you will gain all the confidence you need to understand and interpret all the basic open-hole logs.

    Course Level: Foundation
    Instructor: Roger Nutt

    Designed for you, if you are...

    • A geologist, geophysicist, petroleum engineer, petrophysicist or technician
    • A manager who is exposed to (or uses) open-hole logs in your daily work

    How we build your confidence

    • You will be shown how the tools work and what they tell you
    • Then you will be expected to make use of what you have learned
    • At the end of the course you will be asked to draw your own conclusions and defend them in front of your peers

    The benefits from attending

    By the end of the course, even if you have never seen a log before, you will feel confident in your understanding of:

    • All the basic logs, know what they are measuring and how to read them
    • All the common rock types
    • How to identify hydrocarbon zones
    • How to calculate porosity and water saturations
    • How to choose interpretation parameters


    • How to identify reservoir rocks
    • Invasion profile
    • Why the SP is important and how to use it
    • Identifying hydrocarbon zones from resistivity logs
    • How the basic logging tools work and what they measure
    • The common rock types and how to identify them
    • How to use gamma-rays, spectral gamma-rays and the photoelectric effect
    • What porosity is and how the different kinds of porosity are measured
    • Archie´s equation - where it comes from, what it means, and how to use it to calculate water saturation
    • How to handle shaley zones
    • Quick-look and reconnaissance interpretation methods
    • Cross-plot techniques and some useful short-cuts

    Customer Feedback

    "Great course, great instructor." - Department Manager at OMV
    "I liked the exercises, the good delivery of material and the refreshing view on OH analysis and approach to interpretation." - Geomechanics Specialist at Baker Hughes
    "I really enjoyed the course and for me it was the perfect mixture of exercises/presentations and examples. The course atmosphere was at all times very good." - Exploration Geologist at OMV




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