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No Guesswork: Repeatable and Reliable Techniques for Inspecting H₂S Damage

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NDT UNLOCKED
Knowledge Level - NDT Level III
Presentation Topic Level - Advanced
Target Audience- NDT Engineers
Target Audience- Technicians/Inspectors
Wednesday, October 8, 2025
2:30 PM - 3:00 PM
Monterey 2-3

Speaker

Dakota Kirby
Evident Scientific

No Guesswork: Repeatable and Reliable Techniques for Inspecting H₂S Damage

Presentation Description

This intensive 4-hour short course equips NDT professionals with the knowledge and techniques required to identify and inspect damage caused by hydrogen sulfide (H₂S) in industrial components. Beginning with an overview of what H₂S is and how it contributes to sulfide stress cracking (SSC), hydrogen-induced cracking (HIC), and stepwise cracking (SWC), the session will then focus on how these damage mechanisms manifest in various materials and environments.
Attendees will learn to recognize the typical indicators of H₂S damage and understand the metallurgy behind these failures. The course then transitions into inspection strategies, with a focus on Phased Array Ultrasonic Testing (PAUT) and Total Focusing Method (TFM) and Phase Coherence Imaging (PCI), including probe selection, scan planning, and data interpretation.
Through practical examples and case studies, this session emphasizes real-world applications and decision-making processes that ensure thorough and accurate assessments of H₂S damage in compliance with industry standards.
Key Topics Covered:
• Introduction to H₂S and its impact on materials
• Common forms of H₂S-related damage (SSC, HIC, SWC)
• Inspection planning and surface preparation
• PAUT/TFM techniques and setup considerations
• Interpretation of data and validation of findings
• Field best practices and limitations
This course is ideal for inspectors, engineers, technicians as well as asset owners who are looking to have a repeatable, consistent NDT in-service H₂S damage detection using advanced ultrasonic techniques.

Short Course Description

Biography

Dakota Kirby, Senior Applications Engineer at Evident, brings over 18 years of field and technical expertise in NDT, specializing in advanced ultrasonic techniques like PAUT and TFM. His deep understanding of H₂S-related damage mechanisms, coupled with hands-on experience in oil & gas, power, and nuclear sectors, positions him as an ideal instructor. Dakota is known for his clear communication, practical insights, and commitment to raising inspection standards. At Evident’s Houston lab, Dakota helps R&D efforts to develop and refine innovative inspection methods, making him uniquely equipped to guide participants through both the theory and practice of H₂S damage detection.
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