EXECUTIVE SUMMARY

The Basic Open-Hole Logging and Formation Evaluation course provides a comprehensive foundation in subsurface data acquisition and interpretation. It focuses on understanding how open-hole logging tools measure formation properties. The course explains the physical principles behind common logging measurements. Participants learn how logs are used to evaluate lithology, porosity, fluid content, and saturation. Emphasis is placed on accurate formation evaluation to support exploration and development decisions. The course integrates geological and petrophysical concepts within a structured workflow. Learners gain insight into data quality, limitations, and uncertainty. Practical interpretation logic is developed through systematic reasoning. This course forms a solid entry point into advanced well log analysis and reservoir evaluation.

INTRODUCTION

The Basic Open-Hole Logging and Formation Evaluation course is designed to build essential knowledge of well logging and subsurface interpretation. It introduces the role of open-hole logs in characterizing geological formations. The course explains how logging tools respond to rock and fluid properties. Participants learn the relationship between measured log responses and reservoir characteristics. The program highlights the importance of formation evaluation in estimating hydrocarbon potential. It covers the integration of logs with geological understanding. The course emphasizes consistent interpretation workflows. Concepts are presented in a logical and progressive manner. The scope supports both academic learning and applied subsurface practice.

COURSE OBJECTIVES

Participants will achieve the following objectives by the Basic Open-Hole Logging and Formation Evaluation course:

• Understand the purpose and value of open-hole logging.
• Explain the physical principles of logging measurements.
• Identify major open-hole logging tools and their responses.
• Interpret lithology using gamma ray and resistivity logs.
• Evaluate porosity from density, neutron, and sonic logs.
• Assess fluid type and saturation in formations.
• Recognize borehole and environmental effects on logs.
• Integrate multiple logs for consistent formation evaluation.
• Apply systematic interpretation workflows.
• Develop analytical thinking for subsurface decision-making.
• These objectives are specific, measurable, achievable, and aligned with professional formation evaluation practices, ensuring participants gain practical skills applicable to real well logging and reservoir assessment tasks.

TARGET AUDIENCE

This Basic Open-Hole Logging and Formation Evaluation program targets a professional audience seeking to improve knowledge and skills:

• Geology graduates entering subsurface disciplines.
• Junior petrophysicists.
• Petroleum and reservoir engineers.
• Geologists involved in well evaluation.
• Exploration and development team members.
• Energy sector professionals.
• Technical staff supporting drilling and logging operations.
• Academic researchers in applied geosciences.

COURSE OUTLINE

Day 1: Fundamentals of Open-Hole Logging

• Definition and scope of open-hole logging.
• Role of logging in subsurface evaluation.
• Overview of logging operations and workflows.
• Borehole conditions and logging environments.
• Data acquisition and depth control.
• Log presentation and standard formats.
• Introduction to formation evaluation concepts.

Day 2: Electrical and Radioactive Logs

• Principles of gamma ray measurements.
• Shale identification and volume estimation.
• Natural radioactivity and lithology discrimination.
• Resistivity logging fundamentals.
• Formation resistivity and fluid content.
• Invasion effects and resistivity profiles.
• Interpretation of clean and shaly formations.
• Limitations of electrical measurements.

Day 3: Porosity Logging Tools

• Concept of porosity in reservoir rocks.
• Density log principles and responses.
• Neutron log measurements and hydrogen index.
• Sonic log fundamentals.
• Cross-plot techniques for lithology and porosity.
• Environmental corrections for porosity logs.
• Porosity evaluation in different lithologies.
• Uncertainty in porosity interpretation.

Day 4: Formation Fluids and Saturation Evaluation

• Definition of formation fluids.
• Water, oil, and gas identification.
• Archie relationships and saturation concepts.
• Effects of shale on saturation calculations.
• Movable and residual hydrocarbons.
• Log indicators of gas presence.
• Integration of resistivity and porosity data.
• Common challenges in saturation evaluation.

Day 5: Integrated Formation Evaluation Workflow

• Log quality control and validation.
• Depth matching and normalization.
• Multi-log interpretation strategies.
• Zonation and net pay determination.
• Cut-off selection and sensitivity analysis.
• Uncertainty and risk in log interpretation.
• Integration with geological understanding.
• Review and consolidation of course concepts.

COURSE DURATION

This Basic Open-Hole Logging and Formation Evaluation course is available in different durations: 1 week (intensive training), 2 weeks (moderate pace with additional practice sessions), or 3 weeks (a comprehensive learning experience). The course can be attended in person or online, depending on the trainee's preference.

INSTRUCTOR INFORMATION

This Basic Open-Hole Logging and Formation Evaluation course is delivered by expert trainers worldwide, bringing global experience and best practices.

FREQUENTLY ASKED QUESTIONS

1- Who should attend this Basic Open-Hole Logging and Formation Evaluation course?

This course is suitable for professionals involved in well logging and subsurface evaluation.

2- What are the key benefits of this Basic Open-Hole Logging and Formation Evaluation training?

It builds strong fundamentals for interpreting open-hole logs and evaluating formations.

3—Do participants receive a certificate?

Yes, upon successful completion, all participants will receive a professional certification.

4- What language is the course delivered in?

English and Arabic.

5- Can I attend online?

Yes, you can attend in person, online, or in-house at your company.

CONCLUSION

The Basic Open-Hole Logging and Formation Evaluation course delivers essential knowledge for subsurface interpretation. It strengthens the ability to analyze logging measurements systematically. Participants gain practical skills in lithology, porosity, and saturation evaluation. The course supports confident decision-making in exploration and development activities. It provides long-term professional value in geoscience and reservoir-related careers.