Principles and Applications of Cased Hole Logging

Production and Operations


This course is designed to provide geoscientists and engineers involved in field development, well construction, or production an overview of the principles and applications of cased hole logging.

The objective of this course is to teach participants when to recommend and how to plan cased hole logs and how to evaluate their results. It will cover tool physics and principles of operation, primary applications and measurements, recommended practices for deployment, and interpretation methodology. Below is a general outline of the course structure:

  • Introduction—terms and definitions
  • The near-wellbore environment and the role of different cased hole measurements
  • Production logging
  • Cement evaluation
  • Corrosion evaluation
  • Cased hole saturation monitoring (pulsed neutron, carbon-oxygen, etc.)
  • Planning, design, and execution aspects of cased hole logs

Why Attend?

At the conclusion of the course, participants will be able to understand:

  • common applications of production logging and measurements acquired
  • difference between single phase and multiphase flow regimes and interpretation methodologies
  • uses and limitations of PNC and CO tools and apply Sigma interpretation technique
  • use and limitations of logging standard open hole tools through casing
  • applications of CBL-VDL and ultrasonic tools and in which situations each should be used
  • corrosion monitoring methods and the benefits and limitations of each

Who Should Attend

The target audience includes earth geoscientists and engineers involved in the acquisition, interpretation, or use of cased hole logs. This is a mid-level course that provides a broad overview of cased hole logging methods and practices including production logging, cement evaluation, and corrosion monitoring.

Special Requirements

  • Portable computer/laptop
  • Participants should have a basic understanding of petroleum engineering concepts
  • Attendees need to bring relevant logs and log evaluation problems to use as in-class exercises


Hani Elshahawi is currently global Deepwater Technology Advisor for Shell. Previously, he led FEAST, Shell's Fluid Evaluation and Sampling Technologies centre of excellence, responsible for the planning, execution, and analysis of formation testing and fluid sampling operations.  He has over 25 years of oil industry experience with both service and operating companies in over ten countries around the world. He has held various positions in interpretation, consulting, operations, marketing, and technology development. He holds several patents and has authored over a hundred technical papers in various areas of petroleum engineering and the geosciences.  He has been active with the SPE and the SPWLA.  He was the 2009-2010 president of the SPWLA and is a former distinguished lecturer for both SPE and SPWLA.

Prior teaching or speaking experience (pdf)