Oil and Gas
Upgrade performed without shutdown
All-in-one receipt and installation
Lift optimised for safety
Installation of three large pressure vessels was required at a refinery in the Texas panhandle in the USA. This work needed to take place with minimal disruption to the plant’s six-figure throughput and while utilising as little space as possible.
The three vessels were received on site by ALE and were each of a different size. The first was approximately 16m in length and 3.65m diameter (52ft 9in x 12ft); the second was 35m in length and 4m diameter (116ft x 13ft); the final vessel was 56m in length and 4.2m diameter (184ft x 14ft).
The smallest vessel was delivered under hook and tandem lifted by two hydraulic cranes with 100t (110 US tons) and 400t (440 US tons) capacities. This operation tailed up the vessel from its delivery trailer and set it on its foundations.
The mid-sized vessel was received by ALE in a laydown yard on site. From here, it was loaded onto SPTs fitted with bolsters and transported to its dress out location, adjacent to where it would be lifted and set in place.
Once dress out was complete the vessel was weighed, establishing its centre of gravity. It was then attached by its skirt ring to an SPMT with a 450t (496 US tons) capacity tailing frame, then tailed to a vertical position and again set on its foundations.