James Fisher begins decommissioning works in Gulf of Mexico


Global subsea excavation specialist James Fisher Subsea Excavation (JFSE) is set to start its 80th decommissioning/salvage job in the Gulf of Mexico. 

The platform being decommissioned was damaged during Hurricane Ike in 2008.

JFSE has deployed its T4000 spread that will clear the platform jacket and provides access for rigging and removal, before excavating around the rig’s legs to 18ft below the mud line to enable safe access of a diamond wire saw.

With an output capacity of 4,000l per second, T4000 can easily manoeuvre around subsea structures due to its smaller footprint. 

The tools also make a '3 to 1' slope to ensure safe diver access. 

"There is an immediate impact felt by the energy industry of hurricane season. There are also ongoing challenges."

JFSE Americas business development manager Steven Kaub said: "The US Gulf of Mexico is an important marketplace, both in terms of generating energy and for decommissioning due to ageing infrastructure, oldfields or the effects of extreme weather.

"There is an immediate impact felt by the energy industry of hurricane season. There are also ongoing challenges. This project shows what our clients continue to face many years after a storm wreaks its havoc and how we can ease the burden."

Recently, the company developed and implemented an internal jetting system that will allow its tools to enter through soils that were previously too hard.  

The new technology is expected to help the company to carry out decommissioning operations. 

The non-contact M/CFE systems can perfom deburial of pipelines and cables for inspection and repair, identify and uncover pipelines which have moved, rectify free-spanning and lower existing pipelines to limit stress.