Chain removal completed on a major platform without the use of an AHV

This project involved the removal of 5,200 ft of 5-in chain that was originally installed with no intention of removal during its operating life. Our engineers researched and developed a method that eliminated the need for an AHV or heavy lift vessel, significantly reducing operational complexity and risk. 

In-house structural and installation engineers collaborated to design and fabricate bespoke structural aids without modifying the existing platform. These were produced at our Morgan City, Louisiana facility and tailored for installation safety and integrity. 

As the scope expanded to include procurement, fabrication, offshore operations, and third-party coordination, our ability to manage complex, multi-vendor campaigns became critical. Even amid the continued challenges of Covid-19 logistics, our flexible delivery ensured the safe and successful removal of the chain, meeting the operator’s goal of increasing topside payload and tieback capacity. Our role as a reliable, insight-driven partner helped the client manage risk and deliver results under tight timelines. 

Subtle process efficiencies and portable tooling played a key role. The use of remotely-operated cutting equipment enabled safe, precise work in confined areas and reduced offshore personnel exposure – demonstrating how thoughtful tooling integration can reduce field time and improve safety margins.

• Selected a Diamond Wire Surface Saw and Tyrolit SB pulling saw to overcome hot work restrictions on the platform’s column tops
• Operated the saws remotely to keep personnel safely away from heavy chains
• Used compact, portable equipment to carry out cuts safely and efficiently in a confined space
• Designed custom structural aids in-house to avoid making any modifications to the platform
• Partnered with IntegriCert to perform portable load testing and confirm each column top lift frame was safe and fit for use