Power Generation Maintenance Review Project

Case Study Details

Client: Confidential

Industry: Oil & Gas

Location: United Kingdom

Year Completed: 2020-2021

Project Summary

Optimal undertook a Failure Mode driven maintenance and spares strategy review for the main power generation gas turbines on two offshore platforms with the aim to increase availability of the turbines from 92% to 98%. Although there was redundant generative capacity there was still a high potential for power interruption during load shedding and run ups on switch over which caused production problems.

In total, there were 5 turbines (3 x PGT25 and 2 x LM2500 Dual Fuel Aeroderivative turbines) with differing age and manufacturing origins, and as a result maintenance and spares had to be developed for each turbine system. For this scope, Optimal carried out a holistic Reliability Centred Maintenance (RCM) derivation study (including vendor support tasks) for the whole of the power generation systems including:

A spare parts review
A spare parts preservation assessment
Vulnerability Analysis.

Key Benefits | Outcomes

The project delivered the following:

A completely new suite of bespoke systematic maintenance tasks (in a SAP compliant format) that could be proactively performed to prevent, or to diminish to a satisfactory degree, the consequences of failure
Visibility of vendor tasks created and aligned with the overall maintenance planning regime
Identified a total of 40 new vulnerabilities that could hinder the safe working of the turbine packages. Recommended mitigation activities were defined within the Vulnerability Report
Updated spare parts lists with preservation recommendations to meet availability targets and ensure rapid reinstatement after any down time
Demonstrated the capability to conduct a complex RCM project, which required collaboration with client’s personnel and external stakeholders through remote workshops/meetings.

Overall, Optimal were able to help the client reduce their risk, improve availability and optimise productivity.

Case Study Details