Cased Hole Logging
Principles, Tools & Interpretation

Duration: 5 Days
Target Audience: Petrophysicists, Reservoir Engineers, Well Intervention Specialists, Production Engineers, Logging Engineers
Delivery Mode: Classroom / Virtual with Tool Demonstrations, Log Interpretation Exercises, and Field Case Studies
Level: Intermediate to Advanced

Course Overview

This course equips participants with the knowledge and skills to plan, run, and interpret cased hole logging operations. Topics include logging tools, data acquisition, cement evaluation, production logging, casing and tubing integrity evaluation, and integration with reservoir management.

Day-by-Day Outline

Day 1 – Fundamentals of Cased Hole Logging

- Differences between open hole and cased hole logging
- Logging objectives after casing: integrity, production, reservoir monitoring
- Well environment considerations: casing, tubing, completions
- Introduction to cased hole logging tool categories
- Exercise: Classify tools for different cased hole logging objectives

Day 2 – Cement Evaluation & Bond Logging

- Cement placement basics and zonal isolation
- Cement bond log (CBL) principles
- Variable density logs (VDL) and their interpretation
- Tools for cement evaluation: CBL-VDL, ultrasonic imaging
- Workshop: Interpret cement bond logs for well integrity evaluation

Day 3 – Production Logging Tools & Techniques

- Flow profiling tools: spinner, density, temperature, capacitance
- Determining multiphase flow contributions along the wellbore
- Interpreting production logs for inflow/outflow analysis
- Identifying crossflows, thief zones, and water entries
- Exercise: Analyze production log data to diagnose production issues

Day 4 – Casing & Tubing Integrity Logging

- Tools for corrosion and metal loss detection
- Multi-arm caliper tools for mechanical damage assessment
- Electromagnetic thickness measurements
- Best practices for casing integrity surveys
- Workshop: Review case studies of casing failure identified through logging

Day 5 – Advanced Applications & Integrated Analysis

- Saturation monitoring behind casing using pulsed neutron tools
- Reservoir saturation monitoring over time
- Integration of cased hole logs with open hole data and reservoir models
- Planning cased hole logging programs for workovers and recompletions
- Capstone Project: Develop a cased hole logging plan for a mature producing well

Expected Learning Outcomes

Understand the principles and objectives of cased hole logging
Select appropriate tools for cement, production, and integrity logging
Analyze cased hole log data to assess wellbore and reservoir conditions
Integrate cased hole data with other subsurface information
Plan effective cased hole logging campaigns for production optimization and well interventions

Customizable Add-ons
Tailored content for local geology (e.g. Nile Delta, Western Desert)
Lab visit or simulation hands-on demo
Integration with economics or production courses

Special Customization for Regional NOCs

- Includes legal and fiscal case examples from MENA (Egypt, Libya, Iraq, Algeria)
- Arabic-English bilingual delivery available
- Tailored licensing round simulation exercises
- Optional site visits to local oilfields or regulatory agencies

Trainer Profile

- Senior reservoir and exploration engineers from IOCs and NOCs
- Former advisors to government ministries
- Experts in petroleum contracts and economic modeling

Certification

Participants will receive a Certificate of Completion and a performance report including assessment outcomes and instructor feedback.