The Goodwyn Alpha, constructed in 1995 is an offshore production platform that produces dry gas and condensate. The structure is 55,000 tons and stands 290m tall. The facility is located 135km North West of Karratha with a production capacity of 36000 tons of gas and 11000 tons of condensate.
GWA Derrick Decommissioning
Vertech’s involvement in the project began in the planning phase providing consultation services to Woodside’s EPCM as a technical authority in rope access heavy rigging methodologies.
The project required specific safety measures to overcome risks of working in the vicinity of an operational flare. Vertech is commonly contracted in the Australasian region to provide rope access services for high risk and complex projects. During the execution of this project Vertech removed 120 tonnes of steel without interruption to production.
Vertech’s technicians on this project were essential to project success. Consistency of personnel and the ability to contribute to all areas of the scope was a scope requirement. Multi-disciplined technicians ensured that POB (persons on board) numbers were kept to a minimum so that project activities did not affect the day to day operations of the facility.
Each member of the team was selected for their multiple competencies including:
- Mechanical Trades
- Advanced Rigging
- Electrical Trades
- Rope Access Scaffolding
- Site Management
A stick deconstruction methodology was employed for the scope. Each lift was controlled using defined lift plans prepared preproject by Vertech lifting specialists.
Isolated scaffold work platforms were constructed using rope access avoiding the requirement for large scaffold access towers and approaches. The isolated work platforms were required so that heavy mechanical tooling could be used at various heights throughout the Derrick.
The discrete scaffold platforms reduced:
- Footprint of Materials Required Offshore
- Manual Handling Exposure
- Dropped Object Exposure
- Simultaneous Operations Activities
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