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Oil & Gas Training
and Competency Development
Competency Management system SLB NEXT

Petrophysics for Drilling Engineers

This is a 5 day course that covers wireline logging, MWD-LWD and their specific applications for wellbore stability and includes 1-2 hours daily of workshop examples. This course will be suitable for all drilling engineers, directional drillers and other geoscientists associated with drilling.

Day 1
  • Reservoir Rock and Life of a well
  • Tool Conveyance, Depth Control
  • Well bore stability and filtrate diameter of invasion
  • The mud log and its applications
  • Basics of Logging
  • Log Quality Control
Day 2
  • GR Spectroscopy and its application to determine clay type
  • The Spontaneous Potential and its applications to estimate water salinity and volume of shale
  • Acoustic Log: secondary porosity, rock mechanical properties  and wellbore stability
  • The density and photoelectric cross section
  • The Neutron Log, neutron spectroscopy and sigma neutron capture cross-section
  • Density-Neutron applications for lithology, shale volume and effective and total porosities
Day 3
  • Density-Neutron applications for lithology, shale volume and effective and total porosities
  • Basics 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 array resistivity measurements
  • Wireline Formation Testing
Day 4
  • Measurement While Drilling (MWD) and Logging While Drilling (LWD)
  • Data acquisition of porosity, lithology, Pulsed Neutron Sigma and resistivities
  • Formation Pressure
  • Geosteering basics
  • Seismic
  • Acoustic
Day 5
  • Shale Volume (Vsh, Vcl) evaluation and clay type- Dispersed or laminated shales
  • 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,
  • Estimation of porosity, lithology and water saturations in clean and in shaly-sands
Learning activity mix

This course will be suitable for all drilling engineers, directional drillers and other geoscientists associated with drilling.

  • Basics of logging covering the following domains:
    • Reservoir Rock
    • Basics of Logging
    • Life of a well
    • Tool Conveyance
    • The mud log
    • Well bore stability and filtrate diameter of invasion
    • Depth Control
    • Log Quality Control
  • 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. The applications of acoustic to predict High Pressure zones.  
  • Resistivity Measurements: Tool physics of Shallow Rxo, Laterolog and Induction and High Technology resistivity tools.
  • Wireline formation Testing (WFT): Tool Physics and the theory and applications of WFT to determine mobilities, reservoir pressure and fluid contacts in the reservoir.
  • MWD and LWD data acquisition covering the following domains:
    • Data acquisition of porosity, lithology, Pulsed Neutron Sigma and resistivities
    • Formation Pressure
    • Geosteering basics
    • Seismic
    • Acoustic
  • Interpretations covering the evaluation of:
    • Clay Volume (Vsh, Vcl) evaluation
    • 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 porosity, lithology and water saturations in clean and in shaly-sands.

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