training specialists to the upstream oil and gas industry

Open Hole Log Interpretation

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Course overview

The course will introduce the participants to the Basis of Petrophysics, and Open-hole Log Analysis and Formation Evaluation, which is one of the basic disciplines in petroleum exploration and production.

The course is designed for

  • Exploration Geologists
  • Production Geologists
  • Exploration Managers
  • Well-site Geologists
  • Operations Geologists
  • Geophysicists
  • Petrophysicists
  • Well Data Managers
  • Geotechnicians

Learning objectives

  • To undergo a review of open-hole logging tools as well as the measurements made by the logging tools.
  • To undertake the transformation of the measured data into useful reservoir parameters such as porosity, permeability, water saturation and reserve estimations.
  • To understand the link or relation between Petrophysics, Seismic interpretation, Seismic Reservoir Characterisation and Reservoir Modelling.

Course outline

Basic interpretation methods

Clay / Shale type determination
Volume of Shale from Sonic, Density & Neutron logs
Porosity from Sonic, Density, Neutron logs
Water saturation from Resistivity
Water saturation from SP logs
Pitfalls of formation Evaluation
Permeable zones (qualitative interpretation)

Advanced interpretation methods

Combined determination of porosity and rock composition
Logging charts
Cross-plot methods
Introduction shaly-sand interpretation
Fractured reservoir characterisation
Saturation Determination
Movable fluids determination
Permeability estimation
Thin-bed evaluation

Introduction and review of logging methods and tools
Petrophysical properties of reservoirs
Reservoir rocks and types
Porosity ranges
Permeability (absolute, relative)
Capillary pressure (Pc)
Archie method
Dual-water method
Fundamentals of Formation Evaluation
The borehole and its environment
Open-hole logging Methods
Cased-hole logging methods
Electric and electromagnetic methods - Resistivity, Conductivity, Induction
Spontaneous Potential (SP logs)
Acoustic, Density & Neutron methods
Petrophysical Imaging methods
LWD and MWD techniques
Dip-meter methods
Gamma Ray (GR methods)
Coring and core investigations
Core-to-log data integration
Log analysis & Formation Evaluation
Reservoir characterisation



Location Start Date End Date Cost Trainer Book
Kuala Lumpur 23 Sep 2019 27 Sep 2019 £2,950 Dr Michael Ala
London 14 Oct 2019 18 Oct 2019 £2,950 Dr Michael Ala

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