COURSE OVERVIEW:

Deadlegs and stagnant flow areas represent some of the most vulnerable points in process piping systems, often acting as collection points for water, solids, and corrosive contaminants. This course provides a technical exploration of how stagnant conditions promote localized degradation mechanisms that are frequently overlooked during routine inspections. Participants will learn to define and identify deadlegs within complex piping networks, including vents, drains, bypassed lines, and standby equipment connections.

The scope of this training focuses on the unique corrosion environments created by stagnation, such as Microbiologically Influenced Corrosion (MIC), under-deposit corrosion, and thermal fatigue. We will examine the fluid dynamics that lead to temperature gradients and the concentration of aggressive species like chlorides and H2S in non-flowing sections. The course emphasizes the development of a formal Deadleg Management Program, covering everything from initial inventory creation to specialized monitoring and flushing protocols.

Coverage includes advanced inspection strategies designed to overcome the physical and operational challenges of accessing deadlegs. Attendees will learn how to apply non-intrusive NDT techniques, establish appropriate inspection frequencies based on risk, and implement engineering solutions to eliminate or mitigate deadleg risks. By the end of this program, participants will be equipped to manage the integrity of stagnant services effectively, preventing unexpected leaks and enhancing the overall safety of process operations.

COURSE OBJECTIVES:

After completion of this course, the participants will be able to:

• Define "Deadlegs" and "Stagnant Services" according to API 570 and industry best practices.
• Identify various types of deadlegs, including bypasses, redundant piping, and capped headers.
• Analyze the mechanisms of under-deposit corrosion in low-flow and stagnant areas.
• Explain how stagnant zones facilitate the growth of corrosive bacteria (MIC).
• Evaluate the risk of thermal fatigue and "stripping" in deadlegs connected to hot headers.
• Establish a comprehensive deadleg inventory using P&IDs and physical site walkdowns.
• Implement a risk-ranking system to prioritize deadlegs for inspection and maintenance.
• Select the most effective NDT methods for detecting localized thinning in stagnant lines.
• Design flushing and venting procedures to minimize the accumulation of corrosive agents.
• Develop engineering standards for the elimination of unnecessary deadlegs during design or turnaround.
• Monitor the integrity of stagnant standby equipment and redundant pump circuits.
• Assess the impact of deadlegs on the effectiveness of chemical inhibition programs.

TARGET AUDIENCE:

This training is essential for Inspection Engineers, Piping Engineers, Integrity Engineers, Maintenance Planners, Process Engineers, and Plant Operators involved in the design and reliability of process piping and static equipment.

TRAINING COURSE METHODOLOGY:

A highly interactive combination of lectures, discussion sessions, and case studies will be employed to maximize the transfer of information, knowledge, and experience. The course will be intensive, practical, and highly interactive. The sessions will start by raising the most relevant questions and motivating everybody to find the right answers. The attendants will also be encouraged to raise more of their questions and to share in developing the right answers using their analysis and experience. There will also be some indoor experiential activities to enhance the learning experience. Course material will be provided in PowerPoint, with necessary animations, learning videos, and general discussions.

The course participants shall be evaluated before, during, and at the end of the course.

COURSE CERTIFICATE:

The National Consultant Centre for Training LLC (NCC) will issue an Attendance Certificate to all participants who complete a minimum of 80% of the total attendance time requirement.