Case Studies

Traditional line interventions either utilize a single isolation point or are utilized in conjunction with bypass lines. A double block and bleed (DBB) replaces the need for using three separate line interventions to perform the same function.

A finite element analysis (FEA) was performed on five different models of varying configurations as an approach to establish best practices in the choice of the most appropriate factor of safety, depending on the type of metal loss.

A historical review into the integrity of reformer furnaces since commissioning is discussed in this case study, along with other technical and engineering challenges, and the efforts to overcome them.

Establishing a proactive touch point corrosion integrity management program using engineered on-stream line lifting is a safe and effective means of mitigating unplanned downtime and related safety and potential environmental hazards.

Condition monitoring optimization goes beyond traditional CML optimization, which is often limited in the breadth of analysis, or can overemphasize a subset of the overall objective.

This article presents two case studies that show how having a holistic approach, along with the right technology and experience, is essential to identifying smaller damage mechanisms like fretting in fired heater coils.

This article summarizes the fundamentals of wet H2S-related damage mechanisms, offers some practical inspection guidance, and reviews a notable industry failure caused by different forms of wet H2S damage.

This article discusses how composite materials can be used to mitigate light CUI damage and/or repair and restore structural strength to the affected piping system.

Ethos has assembled a team of experts who apply what they learned through years of process safety experience in the industry and dealing with OSHA and EPA. Click here to learn more about our services.

A risk management approach for relief valves should be able to determine the proper interval of maintenance events and the necessity of installing isolation valves, rupture discs, or 100% spare capacity.

The scope of the subject case study reviews an inspection and corrosion control assessment conducted on subsea flowlines and includes evaluating the flowlines’ associated inspection programs and identifying all available NDT technology solutions.

This case study of a CO2 absorber tower in a remote location investigates the use of a new type of wireless ultrasonic sensor for monitoring the thickness of equipment while on or offline.

It can be challenging for failure analysts to present complex information to audiences that don't the same knowledge on specialized subjects. Sometimes, failure mechanisms can be summarized with images that can tell the whole story...

This article will discuss a statistical analysis method that was developed to evaluate the integrity of pipelines that can identify, in a first phase inspection, whether the nature of the active damage mechanism(s) are uniform (general) or localized.

As more are educated on the benefits of utilizing ropes and drones, skepticism has become far less common, and we’re sure to see adoption grow in the coming years of both of these methods—and, perhaps, of this new hybrid approach to work as well.

This article discusses the header specification, design, fabrication, and inspection processes to identify where opportunities were available to proactively address the vulnerabilities that resulted in the header rupture.