Wireline and LWD Log Quality Control and its Impact on Interpretation

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Event description
Learn how to perform a proper log QA/QC analysis! A highly interactive online course with hands-on exercises.

About this event


The certification of acquired data is a very critical aspect of wireline and LWD logging and is performed through the observation of key quality indicators. The main objective of this course is to make you aware of these quality indicators as well as the different techniques to solve commonly found issues at the wellsite.

The course will explore the tools response explained from their physical principles as well as their relationship with the rock and fluid properties; most common open hole logging technologies will be covered, explaining their main applications and limitations. Basic petrophysical interpretation will be discussed with several examples and exercises in order to complement your knowledge to be able to perform a proper log QA/QC analysis.

This training course will feature:

  • Explanation of petrophysical concepts and techniques
  • Discussions on tools physical principles, applications and QA/QC
  • Tool limitations on different borehole environments
  • Multiple log quality control exercises

COURSE STRUCTURE: 4 modules of max. 4 hours each, delivered over 4 days

Each day will consist of 1 module which will be no more than 4 hours in length with ample time for delegates to break for refreshments

Course Level: Foundation / Skill

Instructor: Angel Meso


  • An engineer in exploration and production departments
  • A geologist, geophysicist or petrophysicist
  • A petroleum, reservoir or drilling engineer
  • In general, any other oil & gas industry professional involved in logging data QA/QC and validation

		Wireline and LWD Log Quality Control and its Impact on Interpretation image


  • This training course will utilise a variety of proven adult learning techniques to ensure maximum understanding, comprehension and retention of the information presented.
  • The sessions will be given in real time through live webinars (instructor-led training); some exercises will be executed during the sessions, others will be done as homework.
  • The daily sessions will be highly interactive and participative. This involves regular discussions of applications as well as hands-on exercises that will be solved manually and/or using Microsoft Excel.


By the end of the course you will feel confident in your understanding of:

  • Physical principles of main wireline and LWD logging tools
  • Applying quality control techniques to validate logging data
  • Main applications and limitations of the different tool readings
  • How to perform a complete log quality control in a set of logs
  • How to perform a basic log interpretation


  • Basic Concepts Review and Resistivity Tools
    • Petrophysics concepts review
    • Introduction to well logging
    • Log classification according to the measured properties
    • Auxiliary measurements, uses and common issues
    • Basic measurements: Gamma ray and spontaneous potential
    • Resistivity theory, principles and applications of laterologs
    • Advanced laterolog logging tools: array and azimuthal
    • Microresistivity devices, principles and applications

  • Conductivity and Nuclear Logging Tools
    • Conductivity tools, uses and limitations
    • LWD resistivity determination tools
    • Advanced induction logging tools, 3D induction
    • RT and invasion profile determination
    • Formation density tools, principles and applications
    • The photoelectric factor, a key lithology indicator
    • Neutron tools principles and applications
    • Porosity determination from density and neutron logs
    • LWD nuclear logging tools
    • Lithology determination, calibrations and log quality control parameters

  • Acoustic and Geological Logging Tools
    • Basic sonic tools, borehole compensation
    • Dipole sonic tools, applications
    • Mechanical properties determination and uses
    • Common sonic issues in the borehole
    • LWD acoustic tools
    • Dipmeter interpretation principles
    • Geological image logging tools
    • Structural and stratigraphic interpretation principles
    • Open, partially open and healed fractures interpretation
    • Faults and unconformities interpretation examples
    • Facies analysis for reservoir characterisation with image logs
    • Ultrasonic logging tools

  • Advanced Logging Tools and Formation Testers
    • Nuclear magnetic resonance, principles and applications
    • Relaxation mechanisms and their association with fluid and rock properties
    • Porosity, irreducible water saturation and permeability determination
    • Advanced fluid determination methods: 3D map T1-T2-difussion
    • Dielectric tools principles and applications
    • Saturation determination parameters, m, n and CEC
    • Geochemical logging tools
    • Complex lithology evaluation examples
    • Formation evaluation principles
    • Rw determination methods
    • Crossplots utilisation, Hingle and Pickett plots
    • Graphical interpretation techniques for porosity and lithology
    • Advanced saturation determination equations and techniques
    • Complete formation evaluation for complex lithology


    "Complex materials are presented very clearly."

    - Technical Advisor at Gazprom

    "Instructor's explanations were very clear and patient."

    - Petrophysicist at RDG

    "Good high tempo, many subjects."

    - Geologist at Petrogas

    "Lots of new information about log quality control. Great experience, thanks."

    - Specialist at NIS

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    Organiser HOT Engineering - A Member of the HOT Energy Group

    Organiser of Wireline and LWD Log Quality Control and its Impact on Interpretation

    The HOT Energy Group (HOT) is a technology driven, multidisciplinary and independent organisation serving the energy industry in its pursuit of recovery and field operations optimisation.

    We are a multi-award winning training provider of upstream oil and gas training solutions, and we pride ourselves in delivering excellence with each and every course session: Quality is always at the core of what we do.

    Our training portfolio covers all stages of the E&P value chain. Our top-notch oil and gas courses, developed and taught exclusively by true experts, have been valued by the industry for over 30 years. The training sessions equip our clients with powerful skills to remain competitive in an increasingly complex petroleum industry.

    We accelerate careers and empower people, striving to achieve the best possible results.

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