Events & Courses

Course overview

This course is concerned with the historical development, physical measurement principles and applications of technologies that were originally designed to obtain the orientation of strata in the subsurface, but are now used to provide a full geological description of the formations crossed by the borehole.

This is Module 3 of a 3 module course series. Delegates can register for individual modules or the All Module course. Follow the links below to register for further modules or the All Modules option:

Online Training: Image Log Analysis; Past, Present, and New Technology - All Modules

Online Training: Image Log Analysis; Past, Present, and New Technology - Module 1

Online Training: Image Log Analysis; Past, Present, and New Technology - Module 2

Who is this course aimed at?

The course will be suitable for a wide range of professionals including petrophysicists, geophysicists, geomodellers and reservoir engineers from oil, gas, geothermal, water, nuclear and CCS Industries who have used or are planning to acquire dipmeter logs / borehole image logs as part of their data acquisition campaign.

Learning Objectives

1. Demonstrate the main objectives, benefits and limitations of dipmeter and borehole image logs.
2. Describe the principle of downhole navigation systems, dip computation methods and the basic rules for dipmeter log interpretation. 
3. Compare the physical measurement principles and tool specifications of electrical and acoustic borehole image logging tools.
4. Evaluate the complexities of borehole image logging in special environments such as oil-base muds, heavy oil, bad hole sections.
5. Explain the basics of processing borehole image logs, quality control of field and processed data and the recognition of acquisition, processing or drilling artifacts.
6. Present the basics of a structural and/or geomechanical interpretation from borehole image logs.
7. Explain the approach towards a sedimentological, textural interpretation of borehole image logs and towards integrated facies analysis.
8. Recommend appropriate borehole image logging tools and processing and interpretation methods in clastic and carbonate environments.
9. Understand the benefits and limitations of borehole image logs in an integrated wellbore analysis. Be able to discuss core – borehole image log calibration issues.
10. Understand the principles and practices of LWD technologies and their use in the evaluation of deviated and horizontal wells.
11. Understand the way in which LWD measurements can identify productive zones and how they can guide the placement of the wellbore towards the most productive parts of the reservoir.
12. Familiarise yourself with a number of non-geosteering applications of LWD technologies.

Programme

Module 3 will be held virtually over a half-day, on 27 January 2025, from 13:00 to 17:00 GMT.

Module 3: Physical measurement principles and applications of Logging-While-Drilling image logs:

LWD Physical Measurement Principles and Tools

• Depth Measurements
• Measurement while Drilling
• Realtime v Memory data
• LWD Imaging principles and acquisition method
• LWD Laterolog resistivity principles and sensor design
• Common issues with LWD images
• Quality Control of LWD images
• Downhole Compression
• Overview of available LWD imaging services
• Emerging capabilities (OBM imaging, acoustic images)

• LWD Realtime applications
• Geosteering/Well Placement challenges
• Correlation in HA/Hz wells and Drilling Polarity
• Practical Image interpretation while drilling
• Steering methods (Reactive/Proactive)
• LWD images in Horizontal holes
• Limitations of LWD images in Geosteering
• Keys to success in Geosteering
• Quantifying Geosteering results

• Log assurance and Drilling decision making
• Post drilling applications reviewDip analysis
• Structural interpretation and analysis
• Fault characterization
• Integrated studies for Rock-typing 
• Fracyure studies
• Geomechanical analysis
• LWD v Wireline Then and now
• Image resolution comparison
• Completion Optimisation
• Invasion and time lapse analyses