Log Quality Control Course

Course Details

This is a course designed for geologists, geophysicists, petroleum engineers and other industry professionals who work with electric logs. The course will teach techniques, procedures and best practices for log quality control including open and cased hole logs and advanced tools like well seismic and magnetic resonance. The participants will understand the most common issues at well-site and the corrective actions to fix them.

This course can be taken in conjunction with the basic and advanced log analysis courses.


Geologists, Geophysicists, Petrophysicists, Petroleum Engineers and other professionals who are interested on log quality control and data validation. This course is especially useful for well-site witness and log acquisition supervisors.

Course Outline

Day 1

Introduction to log quality control. Metrology. Error types. Error minimization. Accuracy and Precision. Auxiliary tools

Gamma Ray tool principles. Calibration. Log Quality Control. Environmental Corrections. Spontaneous Potential. Log Quality Control. Commonly found issues. Best Practices.

Resistivity and Conductivity Tools. Resistivity Theory. Invasion Models. Laterolog. Microlog. Microlaterolog. Environmental Corrections. Calibrations. Log Quality Control. Induction Theory. Array Induction. Induction vs Laterolog.

Day 2

Nuclear Logging Tools. Nuclear Physics Basis. Lithodensity tool. Compensated Neutron Tool. Environmental Corrections. Calibrations. Log Quality Control.

Acoustic Logging Tools. Compensated Sonic. Dipolar Sonic. Wave Propagation. Coherence Maps. Mechanical Properties. Log Quality Control.

Cement Evaluation Logs. Factors Affecting Cement Quality. CBL principle. VDL waveform CBL-VDL Interpretation. Eccentralization Effects. Bond Index. Log Quality Control. Ultrasonic Tools.

Day 3

Geological Imaging Tools. Dipmeter Interpretation. Well Log Images. Image Processing and Interpretation. Log Quality Control. Open and Closed Fractures. Stresses. Ultrasonic Open Hole Images.


Magnetic Resonance Log. Principles and Applications. Magnetic Field influence on Log Quality and maximum speed. Log Quality Control and Calibrations.

Geochemical Logging. Spectrometry Tools. Principles and Applications. Calibration. Log Quality Control. Dielectric Log. Principles and Applications

Day 4

Pressure Determination Tools. Basic Formation Pressure Interpretation Principles. Fluid Sampling. Log Quality Control. Sidewall Samples. Best Practices.


Well Seismic. Checkshot. Vertical Seismic Profile (VSP). Walkaway. Multi-Offset VSP. Walkabove. Applications and interpretation. Seismic Acquisition Log Quality Control.

Day 5

Petrophysical Interpretation Introduction. Saturation Equations. Lithology Determination. Graphical and Numerical Interpretation.


Multiple Log Quality Control Exercises

This course will be offered in Denver between September 7-11, 2015. Course cost is $3900/participant and this includes course manual, hand-outs, exercises, course tuition fees and lunch.