Enerpac Takes the Load for Lamprell Jack-Up Rig

High-pressure hydraulics specialist, Enerpac, with its official distributor Al Masaood Trading, Dubai, has supplied Lamprell, a provider of diversified fabrication, engineering and contracting services to the onshore and offshore energy industries, with an EVO-Series Synchronous Lifting System to weigh a newly completed jack-up rig.

The Enerpac multifunctional synchronous lifting EVO system monitors and manages lifting, lowering, weighing, alignment and load transfer procedures of non-uniform distributed heavy loads. The jack up rig cantilever and drill floor substructure weighing system comprised a 12 point synchronous EVO weighing system, two 600-metric-ton hydraulic jacks, four 200-metric-ton hydraulic jacks and accessories. Al Masaood Trading supplied the EVO system to Lamprell within four weeks to meet tight project timescales. 

A key benefit of the EVO weighing system is its compactness, Enerpac said. Space restrictions under the jack-up rig prevented the use of other weighing systems without costly rework to the load structure. To make the Enerpac jack design even more compact the weighing system used calibrated high pressure transducers in place of load cells. 

Enerpac’s synchronous lifting technology monitored the position and load of each jack-up rig lifting position, comparing it with a global datum and adjusting to the desired target position - movements are safely and efficiently managed, within permissible load and synchronous stroke tolerance parameters, preset to suit the project. 

During the jack-up cantilever and drill floor substructure weighing, the accuracy of the lifting synchronization was such that the difference in plunger stroke of each of the cylinder was less than 1 millimeter, enabling an unprecedented level of weighing accuracy for this type of project.