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Open Hole Log Interpretation

London

3rd September 2018

7th September 2018

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In Collaboration with Esanda Engineering

Discipline

Petrophysics

Instructor

Dr. Michael Ala
Click to view bio

Course Fee

$4189

For group inquiries, contact us.

Course Overview

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

Who is it for?

  • Exploration Geologists

  • Production Geologists

  • Exploration Managers

  • Well-site Geologists

  • Operations Geologists

  • Geophysicists

  • Petrophysicists

  • Well Data Managers

  • Geotechnicians

Course 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 Characterization and Reservoir Modelling.

Course Outline

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 characterization


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 characterization

  • Saturation Determination

  • Movable fluids determination

  • Permeability estimation

  • Thin-bed evaluation