A combination of ‘permanent’ repair work, upgrading existing infrastructure and the development of new and complex strengthening systems has resulted in a number of new contracts.  

With expectations that oil and gas fields may be producing for another 25 to 30 years, the work has included the straightforward re-fit of RotaBolts on existing production infrastructure, such as on heat exchangers and high pressure pipe work and flanges, but it is where new designs and engineering techniques have had to be used that the fasteners have been helping to break new ground. 

Where there has been a requirement for repair work to be carried out there have been no off-the-shelf solutions. Structural strengthening programmes have varied from applying massive clamping systems to platform legs and support infrastructures, through to fitting underwater cable stays more commonly associated with bridge structures. 

The company is currently supplying a range of its measurement fasteners to offshore contractors for use on clamping systems, flanges and jacket reinforcement designs. These vary from M24 bolts on clamps of less than 0.5m in diameter, to M90 bolts that are 3.5m long that are being used on cable stay clamps of 130t.