Oil & Gas Training
and Competency Development

Discipline Petrophysics ,
Exploration
LevelSkill
Duration5 Days
Delivery Mechanism Classroom
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Petrophysics, Quick Look and Log Quality Control

This course covers the following topics:

  • Geology of Carbonates and Clastics
  • Gamma Ray (GR) and Spontaneous Potential: Tool physics and applications to estimate clay volume, clay type and formation water salinities.
  • Porosity and Lithology: Density and Neutron tool physics and applications
  • Acoustics: Tool physics and applications for rock mechanics, well bore stability, and secondary porosity
  • Resistivity Measurements: Tool physics of Shallow Rxo, Laterolog and Induction and High Technology resistivity tools.
  • Introduction to High Technology Tools: NMR, Borehole Imaging, Dielectric  and Wireline Formation Testing.
  • Interpretations: This covers the evaluation of:
    • Clay Volume (Vsh, Vcl),
    • Estimating the parameters of “m” and “n” in the Archie Equation,
    • Quick look techniques to estimate the oil/water, gas/water and oil/gas contacts, salinity estimations of formation water and filtrate water, and unmoved hydrocarbon zones
    • Estimation of water saturations in shaly-sands.

Workshops: 1-2 hours daily of workshop examples

  • Agenda
  • Audience
  • Agenda

    Day 1

    • Reservoir Rock; Life of a well
    • Tool Conveyance, depth Control, filtrate Invasion profiling
    • Basics of Logging, Log Quality Control

    Day 2

    • GR Spectroscopy
    • The Spontaneous Potential
    • Acoustic Log, secondary porosity, rock mechanical properties and wellbore stability
    • The density and photoelectric capture cross section
    • The Neutron Log, neutron spectroscopy and sigma neutron capture cross-section

    Day 3

    • Density-Neutron applications for lithology, shale volume and effective and total porositiesBasics of Resistivity and the Archie Equation
    • The concept and applications of the Formation Factor (FF) as a variable –m emulator
    • Resistivity measurements in the invaded zone (Rxo)
    • Resistivity measurements in the uninvaded zone using Induction and Laterolog
    • The concept and applications of laterolog and induction array resistivity measurements

    Day 4

    • Introduction to High Technology Tools
    • Dielectric measurements
    • Magnetic Resonance Imaging and its applications
    • Borehole imaging

    Day 5

    • Interpretation overview of important petrophysics parameters
    • Estimating fluid salinities-Porosity-Lithology
    • Wettability and the saturation exponent (n)
    • Estimation of the volume of shale
    • Computing the values of Sw using different techniques in clean and shaly formations
  • Audience

    This course will be suitable for all geoscientists and engineers who will benefit greatly from a strong foundation in petrophysics, logging tool physics and log interpretations. This course will also be particularly useful to all new hires who will be working in upstream domains. 

  • Prerequisites

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Upcoming Courses
Rio de Janeiro, Brazil October 15 - 19, 2018
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