A facilities improvement modification was performed to re-locate an existing propane cabinet and its pipework. The piping layout had presented ongoing issues with liquid drop-out at low points, resulting in operational difficulties and unreliability of the pilot ignition system during start up of the turbines.
Scope & Deliverables
SCE’s scope was to survey the existing propane system including tie-ins to the turbines and confirm a suitable alternative location for a new propane bottle cabinet and establish a suitable routing to the header pipework to resolve the fluid drop out issue. Information available pre-survey suggested that a header existed within the turbine hall, in reality some 70 metres of new pipework routing was required to form a new header and 7-off individual turbine branch connections.
Rapid data capture using a handheld scanner both internal and external to the turbine hall quickly provided a conceptual design, which following review and agreement with the client moved straight into detail design. The traditional method of surveying this area would have taken several days. With the hand held scanner SCE was able to capture sufficient information within one shift to complete the workscope.
SCE’s approach resulted in two-fold benefits: Offshore survey time was vastly reduced, freeing up bed space to the asset quickly. Proof of concept design was completed within 1-week (conventionally 4-8 weeks) using our streamlined workflows such as CAD overlay to reduce draughting times. Overall cost and schedule savings of more than 50% were achieved when compared to conventional methods.